zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/88pm8607.c b/ap/os/linux/linux-3.4.x/drivers/regulator/88pm8607.c
new file mode 100644
index 0000000..28b81ae
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/88pm8607.c
@@ -0,0 +1,474 @@
+/*
+ * Regulators driver for Marvell 88PM8607
+ *
+ * Copyright (C) 2009 Marvell International Ltd.
+ * Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/88pm860x.h>
+#include <linux/module.h>
+
+struct pm8607_regulator_info {
+ struct regulator_desc desc;
+ struct pm860x_chip *chip;
+ struct regulator_dev *regulator;
+ struct i2c_client *i2c;
+
+ unsigned int *vol_table;
+ unsigned int *vol_suspend;
+
+ int vol_reg;
+ int vol_shift;
+ int vol_nbits;
+ int update_reg;
+ int update_bit;
+ int enable_reg;
+ int enable_bit;
+ int slope_double;
+};
+
+static const unsigned int BUCK1_table[] = {
+ 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000,
+ 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000,
+ 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000,
+ 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000,
+ 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
+ 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
+ 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
+ 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
+};
+
+static const unsigned int BUCK1_suspend_table[] = {
+ 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
+ 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
+ 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
+ 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
+ 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
+ 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
+ 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
+ 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
+};
+
+static const unsigned int BUCK2_table[] = {
+ 0, 50000, 100000, 150000, 200000, 250000, 300000, 350000,
+ 400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000,
+ 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000,
+ 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
+ 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
+ 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
+ 2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
+ 2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
+};
+
+static const unsigned int BUCK2_suspend_table[] = {
+ 0, 50000, 100000, 150000, 200000, 250000, 300000, 350000,
+ 400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000,
+ 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000,
+ 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000,
+ 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000,
+ 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000,
+ 2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000,
+ 2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000,
+};
+
+static const unsigned int BUCK3_table[] = {
+ 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
+ 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
+ 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
+ 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
+ 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
+ 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
+ 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
+ 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
+};
+
+static const unsigned int BUCK3_suspend_table[] = {
+ 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000,
+ 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000,
+ 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000,
+ 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000,
+ 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000,
+ 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
+ 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000,
+ 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000,
+};
+
+static const unsigned int LDO1_table[] = {
+ 1800000, 1200000, 2800000, 0,
+};
+
+static const unsigned int LDO1_suspend_table[] = {
+ 1800000, 1200000, 0, 0,
+};
+
+static const unsigned int LDO2_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
+};
+
+static const unsigned int LDO2_suspend_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
+};
+
+static const unsigned int LDO3_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
+};
+
+static const unsigned int LDO3_suspend_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
+};
+
+static const unsigned int LDO4_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 3300000,
+};
+
+static const unsigned int LDO4_suspend_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 2900000,
+};
+
+static const unsigned int LDO5_table[] = {
+ 2900000, 3000000, 3100000, 3300000,
+};
+
+static const unsigned int LDO5_suspend_table[] = {
+ 2900000, 0, 0, 0,
+};
+
+static const unsigned int LDO6_table[] = {
+ 1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 3300000,
+};
+
+static const unsigned int LDO6_suspend_table[] = {
+ 1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 2900000,
+};
+
+static const unsigned int LDO7_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
+};
+
+static const unsigned int LDO7_suspend_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
+};
+
+static const unsigned int LDO8_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
+};
+
+static const unsigned int LDO8_suspend_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
+};
+
+static const unsigned int LDO9_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
+};
+
+static const unsigned int LDO9_suspend_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
+};
+
+static const unsigned int LDO10_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000,
+ 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
+};
+
+static const unsigned int LDO10_suspend_table[] = {
+ 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000,
+ 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
+};
+
+static const unsigned int LDO12_table[] = {
+ 1800000, 1900000, 2700000, 2800000, 2900000, 3000000, 3100000, 3300000,
+ 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
+};
+
+static const unsigned int LDO12_suspend_table[] = {
+ 1800000, 1900000, 2700000, 2800000, 2900000, 2900000, 2900000, 2900000,
+ 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000,
+};
+
+static const unsigned int LDO13_table[] = {
+ 1200000, 1300000, 1800000, 2000000, 2500000, 2800000, 3000000, 0,
+};
+
+static const unsigned int LDO13_suspend_table[] = {
+ 0,
+};
+
+static const unsigned int LDO14_table[] = {
+ 1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 3300000,
+};
+
+static const unsigned int LDO14_suspend_table[] = {
+ 1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 2900000,
+};
+
+static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index)
+{
+ struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
+ int ret = -EINVAL;
+
+ if (info->vol_table && (index < (1 << info->vol_nbits))) {
+ ret = info->vol_table[index];
+ if (info->slope_double)
+ ret <<= 1;
+ }
+ return ret;
+}
+
+static int choose_voltage(struct regulator_dev *rdev, int min_uV, int max_uV)
+{
+ struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
+ int i, ret = -ENOENT;
+
+ if (info->slope_double) {
+ min_uV = min_uV >> 1;
+ max_uV = max_uV >> 1;
+ }
+ if (info->vol_table) {
+ for (i = 0; i < (1 << info->vol_nbits); i++) {
+ if (!info->vol_table[i])
+ break;
+ if ((min_uV <= info->vol_table[i])
+ && (max_uV >= info->vol_table[i])) {
+ ret = i;
+ break;
+ }
+ }
+ }
+ if (ret < 0)
+ pr_err("invalid voltage range (%d %d) uV\n", min_uV, max_uV);
+ return ret;
+}
+
+static int pm8607_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
+ uint8_t val, mask;
+ int ret;
+
+ if (min_uV > max_uV) {
+ pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
+ return -EINVAL;
+ }
+
+ ret = choose_voltage(rdev, min_uV, max_uV);
+ if (ret < 0)
+ return -EINVAL;
+ *selector = ret;
+ val = (uint8_t)(ret << info->vol_shift);
+ mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
+
+ ret = pm860x_set_bits(info->i2c, info->vol_reg, mask, val);
+ if (ret)
+ return ret;
+ switch (info->desc.id) {
+ case PM8607_ID_BUCK1:
+ case PM8607_ID_BUCK3:
+ ret = pm860x_set_bits(info->i2c, info->update_reg,
+ 1 << info->update_bit,
+ 1 << info->update_bit);
+ break;
+ }
+ return ret;
+}
+
+static int pm8607_get_voltage(struct regulator_dev *rdev)
+{
+ struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
+ uint8_t val, mask;
+ int ret;
+
+ ret = pm860x_reg_read(info->i2c, info->vol_reg);
+ if (ret < 0)
+ return ret;
+
+ mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
+ val = ((unsigned char)ret & mask) >> info->vol_shift;
+
+ return pm8607_list_voltage(rdev, val);
+}
+
+static int pm8607_enable(struct regulator_dev *rdev)
+{
+ struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
+
+ return pm860x_set_bits(info->i2c, info->enable_reg,
+ 1 << info->enable_bit,
+ 1 << info->enable_bit);
+}
+
+static int pm8607_disable(struct regulator_dev *rdev)
+{
+ struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
+
+ return pm860x_set_bits(info->i2c, info->enable_reg,
+ 1 << info->enable_bit, 0);
+}
+
+static int pm8607_is_enabled(struct regulator_dev *rdev)
+{
+ struct pm8607_regulator_info *info = rdev_get_drvdata(rdev);
+ int ret;
+
+ ret = pm860x_reg_read(info->i2c, info->enable_reg);
+ if (ret < 0)
+ return ret;
+
+ return !!((unsigned char)ret & (1 << info->enable_bit));
+}
+
+static struct regulator_ops pm8607_regulator_ops = {
+ .set_voltage = pm8607_set_voltage,
+ .get_voltage = pm8607_get_voltage,
+ .enable = pm8607_enable,
+ .disable = pm8607_disable,
+ .is_enabled = pm8607_is_enabled,
+};
+
+#define PM8607_DVC(vreg, nbits, ureg, ubit, ereg, ebit) \
+{ \
+ .desc = { \
+ .name = #vreg, \
+ .ops = &pm8607_regulator_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = PM8607_ID_##vreg, \
+ .owner = THIS_MODULE, \
+ }, \
+ .vol_reg = PM8607_##vreg, \
+ .vol_shift = (0), \
+ .vol_nbits = (nbits), \
+ .update_reg = PM8607_##ureg, \
+ .update_bit = (ubit), \
+ .enable_reg = PM8607_##ereg, \
+ .enable_bit = (ebit), \
+ .slope_double = (0), \
+ .vol_table = (unsigned int *)&vreg##_table, \
+ .vol_suspend = (unsigned int *)&vreg##_suspend_table, \
+}
+
+#define PM8607_LDO(_id, vreg, shift, nbits, ereg, ebit) \
+{ \
+ .desc = { \
+ .name = "LDO" #_id, \
+ .ops = &pm8607_regulator_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = PM8607_ID_LDO##_id, \
+ .owner = THIS_MODULE, \
+ }, \
+ .vol_reg = PM8607_##vreg, \
+ .vol_shift = (shift), \
+ .vol_nbits = (nbits), \
+ .enable_reg = PM8607_##ereg, \
+ .enable_bit = (ebit), \
+ .slope_double = (0), \
+ .vol_table = (unsigned int *)&LDO##_id##_table, \
+ .vol_suspend = (unsigned int *)&LDO##_id##_suspend_table, \
+}
+
+static struct pm8607_regulator_info pm8607_regulator_info[] = {
+ PM8607_DVC(BUCK1, 6, GO, 0, SUPPLIES_EN11, 0),
+ PM8607_DVC(BUCK2, 6, GO, 1, SUPPLIES_EN11, 1),
+ PM8607_DVC(BUCK3, 6, GO, 2, SUPPLIES_EN11, 2),
+
+ PM8607_LDO( 1, LDO1, 0, 2, SUPPLIES_EN11, 3),
+ PM8607_LDO( 2, LDO2, 0, 3, SUPPLIES_EN11, 4),
+ PM8607_LDO( 3, LDO3, 0, 3, SUPPLIES_EN11, 5),
+ PM8607_LDO( 4, LDO4, 0, 3, SUPPLIES_EN11, 6),
+ PM8607_LDO( 5, LDO5, 0, 2, SUPPLIES_EN11, 7),
+ PM8607_LDO( 6, LDO6, 0, 3, SUPPLIES_EN12, 0),
+ PM8607_LDO( 7, LDO7, 0, 3, SUPPLIES_EN12, 1),
+ PM8607_LDO( 8, LDO8, 0, 3, SUPPLIES_EN12, 2),
+ PM8607_LDO( 9, LDO9, 0, 3, SUPPLIES_EN12, 3),
+ PM8607_LDO(10, LDO10, 0, 4, SUPPLIES_EN12, 4),
+ PM8607_LDO(12, LDO12, 0, 4, SUPPLIES_EN12, 5),
+ PM8607_LDO(13, VIBRATOR_SET, 1, 3, VIBRATOR_SET, 0),
+ PM8607_LDO(14, LDO14, 0, 3, SUPPLIES_EN12, 6),
+};
+
+static int __devinit pm8607_regulator_probe(struct platform_device *pdev)
+{
+ struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
+ struct pm8607_regulator_info *info = NULL;
+ struct regulator_init_data *pdata = pdev->dev.platform_data;
+ struct resource *res;
+ int i;
+
+ res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "No I/O resource!\n");
+ return -EINVAL;
+ }
+ for (i = 0; i < ARRAY_SIZE(pm8607_regulator_info); i++) {
+ info = &pm8607_regulator_info[i];
+ if (info->desc.id == res->start)
+ break;
+ }
+ if (i == ARRAY_SIZE(pm8607_regulator_info)) {
+ dev_err(&pdev->dev, "Failed to find regulator %llu\n",
+ (unsigned long long)res->start);
+ return -EINVAL;
+ }
+ info->i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion;
+ info->chip = chip;
+
+ /* check DVC ramp slope double */
+ if ((i == PM8607_ID_BUCK3) && info->chip->buck3_double)
+ info->slope_double = 1;
+
+ /* replace driver_data with info */
+ info->regulator = regulator_register(&info->desc, &pdev->dev,
+ pdata, info, NULL);
+ if (IS_ERR(info->regulator)) {
+ dev_err(&pdev->dev, "failed to register regulator %s\n",
+ info->desc.name);
+ return PTR_ERR(info->regulator);
+ }
+
+ platform_set_drvdata(pdev, info);
+ return 0;
+}
+
+static int __devexit pm8607_regulator_remove(struct platform_device *pdev)
+{
+ struct pm8607_regulator_info *info = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+ regulator_unregister(info->regulator);
+ return 0;
+}
+
+static struct platform_driver pm8607_regulator_driver = {
+ .driver = {
+ .name = "88pm860x-regulator",
+ .owner = THIS_MODULE,
+ },
+ .probe = pm8607_regulator_probe,
+ .remove = __devexit_p(pm8607_regulator_remove),
+};
+
+static int __init pm8607_regulator_init(void)
+{
+ return platform_driver_register(&pm8607_regulator_driver);
+}
+subsys_initcall(pm8607_regulator_init);
+
+static void __exit pm8607_regulator_exit(void)
+{
+ platform_driver_unregister(&pm8607_regulator_driver);
+}
+module_exit(pm8607_regulator_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_DESCRIPTION("Regulator Driver for Marvell 88PM8607 PMIC");
+MODULE_ALIAS("platform:88pm8607-regulator");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/Kconfig b/ap/os/linux/linux-3.4.x/drivers/regulator/Kconfig
new file mode 100644
index 0000000..229f776
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/Kconfig
@@ -0,0 +1,376 @@
+menuconfig REGULATOR
+ bool "Voltage and Current Regulator Support"
+ help
+ Generic Voltage and Current Regulator support.
+
+ This framework is designed to provide a generic interface to voltage
+ and current regulators within the Linux kernel. It's intended to
+ provide voltage and current control to client or consumer drivers and
+ also provide status information to user space applications through a
+ sysfs interface.
+
+ The intention is to allow systems to dynamically control regulator
+ output in order to save power and prolong battery life. This applies
+ to both voltage regulators (where voltage output is controllable) and
+ current sinks (where current output is controllable).
+
+ This framework safely compiles out if not selected so that client
+ drivers can still be used in systems with no software controllable
+ regulators.
+
+ If unsure, say no.
+
+if REGULATOR
+
+config REGULATOR_DEBUG
+ bool "Regulator debug support"
+ help
+ Say yes here to enable debugging support.
+
+config REGULATOR_DUMMY
+ bool "Provide a dummy regulator if regulator lookups fail"
+ help
+ If this option is enabled then when a regulator lookup fails
+ and the board has not specified that it has provided full
+ constraints then the regulator core will provide an always
+ enabled dummy regulator will be provided, allowing consumer
+ drivers to continue.
+
+ A warning will be generated when this substitution is done.
+
+config REGULATOR_FIXED_VOLTAGE
+ tristate "Fixed voltage regulator support"
+ help
+ This driver provides support for fixed voltage regulators,
+ useful for systems which use a combination of software
+ managed regulators and simple non-configurable regulators.
+
+config REGULATOR_VIRTUAL_CONSUMER
+ tristate "Virtual regulator consumer support"
+ help
+ This driver provides a virtual consumer for the voltage and
+ current regulator API which provides sysfs controls for
+ configuring the supplies requested. This is mainly useful
+ for test purposes.
+
+ If unsure, say no.
+
+config REGULATOR_USERSPACE_CONSUMER
+ tristate "Userspace regulator consumer support"
+ help
+ There are some classes of devices that are controlled entirely
+ from user space. Userspace consumer driver provides ability to
+ control power supplies for such devices.
+
+ If unsure, say no.
+
+config REGULATOR_GPIO
+ tristate "GPIO regulator support"
+ depends on GENERIC_GPIO
+ help
+ This driver provides support for regulators that can be
+ controlled via gpios.
+ It is capable of supporting current and voltage regulators
+ and the platform has to provide a mapping of GPIO-states
+ to target volts/amps.
+
+config REGULATOR_AD5398
+ tristate "Analog Devices AD5398/AD5821 regulators"
+ depends on I2C
+ help
+ This driver supports AD5398 and AD5821 current regulator chips.
+ If building into module, its name is ad5398.ko.
+
+config REGULATOR_AAT2870
+ tristate "AnalogicTech AAT2870 Regulators"
+ depends on MFD_AAT2870_CORE
+ help
+ If you have a AnalogicTech AAT2870 say Y to enable the
+ regulator driver.
+
+config REGULATOR_DA903X
+ tristate "Dialog Semiconductor DA9030/DA9034 regulators"
+ depends on PMIC_DA903X
+ help
+ Say y here to support the BUCKs and LDOs regulators found on
+ Dialog Semiconductor DA9030/DA9034 PMIC.
+
+config REGULATOR_DA9052
+ tristate "Dialog Semiconductor DA9052/DA9053 regulators"
+ depends on PMIC_DA9052
+ help
+ This driver supports the voltage regulators of DA9052-BC and
+ DA9053-AA/Bx PMIC.
+
+config REGULATOR_ANATOP
+ tristate "Freescale i.MX on-chip ANATOP LDO regulators"
+ depends on MFD_ANATOP
+ help
+ Say y here to support Freescale i.MX on-chip ANATOP LDOs
+ regulators. It is recommended that this option be
+ enabled on i.MX6 platform.
+
+config REGULATOR_MC13XXX_CORE
+ tristate
+
+config REGULATOR_MC13783
+ tristate "Freescale MC13783 regulator driver"
+ depends on MFD_MC13783
+ select REGULATOR_MC13XXX_CORE
+ help
+ Say y here to support the regulators found on the Freescale MC13783
+ PMIC.
+
+config REGULATOR_MC13892
+ tristate "Freescale MC13892 regulator driver"
+ depends on MFD_MC13XXX
+ select REGULATOR_MC13XXX_CORE
+ help
+ Say y here to support the regulators found on the Freescale MC13892
+ PMIC.
+
+config REGULATOR_ISL6271A
+ tristate "Intersil ISL6271A Power regulator"
+ depends on I2C
+ help
+ This driver supports ISL6271A voltage regulator chip.
+
+config REGULATOR_88PM8607
+ bool "Marvell 88PM8607 Power regulators"
+ depends on MFD_88PM860X=y
+ help
+ This driver supports 88PM8607 voltage regulator chips.
+
+config REGULATOR_MAX1586
+ tristate "Maxim 1586/1587 voltage regulator"
+ depends on I2C
+ help
+ This driver controls a Maxim 1586 or 1587 voltage output
+ regulator via I2C bus. The provided regulator is suitable
+ for PXA27x chips to control VCC_CORE and VCC_USIM voltages.
+
+config REGULATOR_MAX8649
+ tristate "Maxim 8649 voltage regulator"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ This driver controls a Maxim 8649 voltage output regulator via
+ I2C bus.
+
+config REGULATOR_MAX8660
+ tristate "Maxim 8660/8661 voltage regulator"
+ depends on I2C
+ help
+ This driver controls a Maxim 8660/8661 voltage output
+ regulator via I2C bus.
+
+config REGULATOR_MAX8925
+ tristate "Maxim MAX8925 Power Management IC"
+ depends on MFD_MAX8925
+ help
+ Say y here to support the voltage regulaltor of Maxim MAX8925 PMIC.
+
+config REGULATOR_MAX8952
+ tristate "Maxim MAX8952 Power Management IC"
+ depends on I2C
+ help
+ This driver controls a Maxim 8952 voltage output regulator
+ via I2C bus. Maxim 8952 has one voltage output and supports 4 DVS
+ modes ranging from 0.77V to 1.40V by 0.01V steps.
+
+config REGULATOR_MAX8997
+ tristate "Maxim 8997/8966 regulator"
+ depends on MFD_MAX8997
+ help
+ This driver controls a Maxim 8997/8966 regulator
+ via I2C bus. The provided regulator is suitable for S5PC110,
+ S5PV210, and Exynos-4 chips to control VCC_CORE and
+ VCC_USIM voltages.
+
+config REGULATOR_MAX8998
+ tristate "Maxim 8998 voltage regulator"
+ depends on MFD_MAX8998
+ help
+ This driver controls a Maxim 8998 voltage output regulator
+ via I2C bus. The provided regulator is suitable for S3C6410
+ and S5PC1XX chips to control VCC_CORE and VCC_USIM voltages.
+
+config REGULATOR_PCAP
+ tristate "Motorola PCAP2 regulator driver"
+ depends on EZX_PCAP
+ help
+ This driver provides support for the voltage regulators of the
+ PCAP2 PMIC.
+
+config REGULATOR_LP3971
+ tristate "National Semiconductors LP3971 PMIC regulator driver"
+ depends on I2C
+ help
+ Say Y here to support the voltage regulators and convertors
+ on National Semiconductors LP3971 PMIC
+
+config REGULATOR_LP3972
+ tristate "National Semiconductors LP3972 PMIC regulator driver"
+ depends on I2C
+ help
+ Say Y here to support the voltage regulators and convertors
+ on National Semiconductors LP3972 PMIC
+
+config REGULATOR_PCF50633
+ tristate "NXP PCF50633 regulator driver"
+ depends on MFD_PCF50633
+ help
+ Say Y here to support the voltage regulators and convertors
+ on PCF50633
+
+config REGULATOR_S5M8767
+ tristate "Samsung S5M8767A voltage regulator"
+ depends on MFD_S5M_CORE
+ help
+ This driver supports a Samsung S5M8767A voltage output regulator
+ via I2C bus. S5M8767A have 9 Bucks and 28 LDOs output and
+ supports DVS mode with 8bits of output voltage control.
+
+config REGULATOR_AB3100
+ tristate "ST-Ericsson AB3100 Regulator functions"
+ depends on AB3100_CORE
+ default y if AB3100_CORE
+ help
+ These regulators correspond to functionality in the
+ AB3100 analog baseband dealing with power regulators
+ for the system.
+
+config REGULATOR_AB8500
+ bool "ST-Ericsson AB8500 Power Regulators"
+ depends on AB8500_CORE
+ help
+ This driver supports the regulators found on the ST-Ericsson mixed
+ signal AB8500 PMIC
+
+config REGULATOR_DBX500_PRCMU
+ bool
+
+config REGULATOR_DB8500_PRCMU
+ bool "ST-Ericsson DB8500 Voltage Domain Regulators"
+ depends on MFD_DB8500_PRCMU
+ select REGULATOR_DBX500_PRCMU
+ help
+ This driver supports the voltage domain regulators controlled by the
+ DB8500 PRCMU
+
+config REGULATOR_TPS6105X
+ tristate "TI TPS6105X Power regulators"
+ depends on TPS6105X
+ default y if TPS6105X
+ help
+ This driver supports TPS61050/TPS61052 voltage regulator chips.
+ It is a single boost converter primarily for white LEDs and
+ audio amplifiers.
+
+config REGULATOR_TPS62360
+ tristate "TI TPS62360 Power Regulator"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ This driver supports TPS62360 voltage regulator chip. This
+ regulator is meant for processor core supply. This chip is
+ high-frequency synchronous step down dc-dc converter optimized
+ for battery-powered portable applications.
+
+config REGULATOR_TPS65023
+ tristate "TI TPS65023 Power regulators"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ This driver supports TPS65023 voltage regulator chips. TPS65023 provides
+ three step-down converters and two general-purpose LDO voltage regulators.
+ It supports TI's software based Class-2 SmartReflex implementation.
+
+config REGULATOR_TPS6507X
+ tristate "TI TPS6507X Power regulators"
+ depends on I2C
+ help
+ This driver supports TPS6507X voltage regulator chips. TPS6507X provides
+ three step-down converters and two general-purpose LDO voltage regulators.
+ It supports TI's software based Class-2 SmartReflex implementation.
+
+config REGULATOR_TPS65217
+ tristate "TI TPS65217 Power regulators"
+ depends on MFD_TPS65217
+ help
+ This driver supports TPS65217 voltage regulator chips. TPS65217
+ provides three step-down converters and four general-purpose LDO
+ voltage regulators. It supports software based voltage control
+ for different voltage domains
+
+config REGULATOR_TPS6524X
+ tristate "TI TPS6524X Power regulators"
+ depends on SPI
+ help
+ This driver supports TPS6524X voltage regulator chips. TPS6524X
+ provides three step-down converters and two general-purpose LDO
+ voltage regulators. This device is interfaced using a customized
+ serial interface currently supported on the sequencer serial
+ port controller.
+
+config REGULATOR_TPS6586X
+ tristate "TI TPS6586X Power regulators"
+ depends on MFD_TPS6586X
+ help
+ This driver supports TPS6586X voltage regulator chips.
+
+config REGULATOR_TPS65910
+ tristate "TI TPS65910/TPS65911 Power Regulators"
+ depends on MFD_TPS65910
+ help
+ This driver supports TPS65910/TPS65911 voltage regulator chips.
+
+config REGULATOR_TPS65912
+ tristate "TI TPS65912 Power regulator"
+ depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
+ help
+ This driver supports TPS65912 voltage regulator chip.
+
+config REGULATOR_ZX234290
+ tristate "Sanechips ZX234290 Power regulator"
+ depends on (MFD_ZX234290_I2C)
+ help
+ This driver supports ZX234290 voltage regulator chip.
+
+config REGULATOR_TWL4030
+ bool "TI TWL4030/TWL5030/TWL6030/TPS659x0 PMIC"
+ depends on TWL4030_CORE
+ help
+ This driver supports the voltage regulators provided by
+ this family of companion chips.
+
+config REGULATOR_WM831X
+ tristate "Wolfson Microelectronics WM831x PMIC regulators"
+ depends on MFD_WM831X
+ help
+ Support the voltage and current regulators of the WM831x series
+ of PMIC devices.
+
+config REGULATOR_WM8350
+ tristate "Wolfson Microelectronics WM8350 AudioPlus PMIC"
+ depends on MFD_WM8350
+ help
+ This driver provides support for the voltage and current regulators
+ of the WM8350 AudioPlus PMIC.
+
+config REGULATOR_WM8400
+ tristate "Wolfson Microelectronics WM8400 AudioPlus PMIC"
+ depends on MFD_WM8400
+ help
+ This driver provides support for the voltage regulators of the
+ WM8400 AudioPlus PMIC.
+
+config REGULATOR_WM8994
+ tristate "Wolfson Microelectronics WM8994 CODEC"
+ depends on MFD_WM8994
+ help
+ This driver provides support for the voltage regulators on the
+ WM8994 CODEC.
+
+endif
+
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/Makefile b/ap/os/linux/linux-3.4.x/drivers/regulator/Makefile
new file mode 100644
index 0000000..2b790b9
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/Makefile
@@ -0,0 +1,57 @@
+#
+# Makefile for regulator drivers.
+#
+
+
+obj-$(CONFIG_REGULATOR) += core.o dummy.o fixed-helper.o
+obj-$(CONFIG_OF) += of_regulator.o
+obj-$(CONFIG_REGULATOR_FIXED_VOLTAGE) += fixed.o
+obj-$(CONFIG_REGULATOR_VIRTUAL_CONSUMER) += virtual.o
+obj-$(CONFIG_REGULATOR_USERSPACE_CONSUMER) += userspace-consumer.o
+
+obj-$(CONFIG_REGULATOR_GPIO) += gpio-regulator.o
+obj-$(CONFIG_REGULATOR_88PM8607) += 88pm8607.o
+obj-$(CONFIG_REGULATOR_AAT2870) += aat2870-regulator.o
+obj-$(CONFIG_REGULATOR_AB3100) += ab3100.o
+obj-$(CONFIG_REGULATOR_AB8500) += ab8500.o
+obj-$(CONFIG_REGULATOR_AD5398) += ad5398.o
+obj-$(CONFIG_REGULATOR_ANATOP) += anatop-regulator.o
+obj-$(CONFIG_REGULATOR_DA903X) += da903x.o
+obj-$(CONFIG_REGULATOR_DA9052) += da9052-regulator.o
+obj-$(CONFIG_REGULATOR_DBX500_PRCMU) += dbx500-prcmu.o
+obj-$(CONFIG_REGULATOR_DB8500_PRCMU) += db8500-prcmu.o
+obj-$(CONFIG_REGULATOR_ISL6271A) += isl6271a-regulator.o
+obj-$(CONFIG_REGULATOR_LP3971) += lp3971.o
+obj-$(CONFIG_REGULATOR_LP3972) += lp3972.o
+obj-$(CONFIG_REGULATOR_MAX1586) += max1586.o
+obj-$(CONFIG_REGULATOR_MAX8649) += max8649.o
+obj-$(CONFIG_REGULATOR_MAX8660) += max8660.o
+obj-$(CONFIG_REGULATOR_MAX8925) += max8925-regulator.o
+obj-$(CONFIG_REGULATOR_MAX8952) += max8952.o
+obj-$(CONFIG_REGULATOR_MAX8997) += max8997.o
+obj-$(CONFIG_REGULATOR_MAX8998) += max8998.o
+obj-$(CONFIG_REGULATOR_MC13783) += mc13783-regulator.o
+obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o
+obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o
+obj-$(CONFIG_REGULATOR_PCAP) += pcap-regulator.o
+obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o
+obj-$(CONFIG_REGULATOR_S5M8767) += s5m8767.o
+obj-$(CONFIG_REGULATOR_TPS6105X) += tps6105x-regulator.o
+obj-$(CONFIG_REGULATOR_TPS62360) += tps62360-regulator.o
+obj-$(CONFIG_REGULATOR_TPS65023) += tps65023-regulator.o
+obj-$(CONFIG_REGULATOR_TPS6507X) += tps6507x-regulator.o
+obj-$(CONFIG_REGULATOR_TPS65217) += tps65217-regulator.o
+obj-$(CONFIG_REGULATOR_TPS6524X) += tps6524x-regulator.o
+obj-$(CONFIG_REGULATOR_TPS6586X) += tps6586x-regulator.o
+obj-$(CONFIG_REGULATOR_TPS65910) += tps65910-regulator.o
+obj-$(CONFIG_REGULATOR_TPS65912) += tps65912-regulator.o
+obj-$(CONFIG_REGULATOR_TWL4030) += twl-regulator.o
+obj-$(CONFIG_REGULATOR_WM831X) += wm831x-dcdc.o
+obj-$(CONFIG_REGULATOR_WM831X) += wm831x-isink.o
+obj-$(CONFIG_REGULATOR_WM831X) += wm831x-ldo.o
+obj-$(CONFIG_REGULATOR_WM8350) += wm8350-regulator.o
+obj-$(CONFIG_REGULATOR_WM8400) += wm8400-regulator.o
+obj-$(CONFIG_REGULATOR_WM8994) += wm8994-regulator.o
+obj-$(CONFIG_REGULATOR_ZX234290) += zx234290-regulator.o
+
+ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/aat2870-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/aat2870-regulator.c
new file mode 100644
index 0000000..9ed5c5d
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/aat2870-regulator.c
@@ -0,0 +1,233 @@
+/*
+ * linux/drivers/regulator/aat2870-regulator.c
+ *
+ * Copyright (c) 2011, NVIDIA Corporation.
+ * Author: Jin Park <jinyoungp@nvidia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/aat2870.h>
+
+struct aat2870_regulator {
+ struct aat2870_data *aat2870;
+ struct regulator_desc desc;
+
+ const int *voltages; /* uV */
+
+ int min_uV;
+ int max_uV;
+
+ u8 enable_addr;
+ u8 enable_shift;
+ u8 enable_mask;
+
+ u8 voltage_addr;
+ u8 voltage_shift;
+ u8 voltage_mask;
+};
+
+static int aat2870_ldo_list_voltage(struct regulator_dev *rdev,
+ unsigned selector)
+{
+ struct aat2870_regulator *ri = rdev_get_drvdata(rdev);
+
+ return ri->voltages[selector];
+}
+
+static int aat2870_ldo_set_voltage_sel(struct regulator_dev *rdev,
+ unsigned selector)
+{
+ struct aat2870_regulator *ri = rdev_get_drvdata(rdev);
+ struct aat2870_data *aat2870 = ri->aat2870;
+
+ return aat2870->update(aat2870, ri->voltage_addr, ri->voltage_mask,
+ selector << ri->voltage_shift);
+}
+
+static int aat2870_ldo_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct aat2870_regulator *ri = rdev_get_drvdata(rdev);
+ struct aat2870_data *aat2870 = ri->aat2870;
+ u8 val;
+ int ret;
+
+ ret = aat2870->read(aat2870, ri->voltage_addr, &val);
+ if (ret)
+ return ret;
+
+ return (val & ri->voltage_mask) >> ri->voltage_shift;
+}
+
+static int aat2870_ldo_enable(struct regulator_dev *rdev)
+{
+ struct aat2870_regulator *ri = rdev_get_drvdata(rdev);
+ struct aat2870_data *aat2870 = ri->aat2870;
+
+ return aat2870->update(aat2870, ri->enable_addr, ri->enable_mask,
+ ri->enable_mask);
+}
+
+static int aat2870_ldo_disable(struct regulator_dev *rdev)
+{
+ struct aat2870_regulator *ri = rdev_get_drvdata(rdev);
+ struct aat2870_data *aat2870 = ri->aat2870;
+
+ return aat2870->update(aat2870, ri->enable_addr, ri->enable_mask, 0);
+}
+
+static int aat2870_ldo_is_enabled(struct regulator_dev *rdev)
+{
+ struct aat2870_regulator *ri = rdev_get_drvdata(rdev);
+ struct aat2870_data *aat2870 = ri->aat2870;
+ u8 val;
+ int ret;
+
+ ret = aat2870->read(aat2870, ri->enable_addr, &val);
+ if (ret)
+ return ret;
+
+ return val & ri->enable_mask ? 1 : 0;
+}
+
+static struct regulator_ops aat2870_ldo_ops = {
+ .list_voltage = aat2870_ldo_list_voltage,
+ .set_voltage_sel = aat2870_ldo_set_voltage_sel,
+ .get_voltage_sel = aat2870_ldo_get_voltage_sel,
+ .enable = aat2870_ldo_enable,
+ .disable = aat2870_ldo_disable,
+ .is_enabled = aat2870_ldo_is_enabled,
+};
+
+static const int aat2870_ldo_voltages[] = {
+ 1200000, 1300000, 1500000, 1600000,
+ 1800000, 2000000, 2200000, 2500000,
+ 2600000, 2700000, 2800000, 2900000,
+ 3000000, 3100000, 3200000, 3300000,
+};
+
+#define AAT2870_LDO(ids) \
+ { \
+ .desc = { \
+ .name = #ids, \
+ .id = AAT2870_ID_##ids, \
+ .n_voltages = ARRAY_SIZE(aat2870_ldo_voltages), \
+ .ops = &aat2870_ldo_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ }, \
+ .voltages = aat2870_ldo_voltages, \
+ .min_uV = 1200000, \
+ .max_uV = 3300000, \
+ }
+
+static struct aat2870_regulator aat2870_regulators[] = {
+ AAT2870_LDO(LDOA),
+ AAT2870_LDO(LDOB),
+ AAT2870_LDO(LDOC),
+ AAT2870_LDO(LDOD),
+};
+
+static struct aat2870_regulator *aat2870_get_regulator(int id)
+{
+ struct aat2870_regulator *ri = NULL;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(aat2870_regulators); i++) {
+ ri = &aat2870_regulators[i];
+ if (ri->desc.id == id)
+ break;
+ }
+
+ if (i == ARRAY_SIZE(aat2870_regulators))
+ return NULL;
+
+ ri->enable_addr = AAT2870_LDO_EN;
+ ri->enable_shift = id - AAT2870_ID_LDOA;
+ ri->enable_mask = 0x1 << ri->enable_shift;
+
+ ri->voltage_addr = (id - AAT2870_ID_LDOA) / 2 ?
+ AAT2870_LDO_CD : AAT2870_LDO_AB;
+ ri->voltage_shift = (id - AAT2870_ID_LDOA) % 2 ? 0 : 4;
+ ri->voltage_mask = 0xF << ri->voltage_shift;
+
+ return ri;
+}
+
+static int aat2870_regulator_probe(struct platform_device *pdev)
+{
+ struct aat2870_regulator *ri;
+ struct regulator_dev *rdev;
+
+ ri = aat2870_get_regulator(pdev->id);
+ if (!ri) {
+ dev_err(&pdev->dev, "Invalid device ID, %d\n", pdev->id);
+ return -EINVAL;
+ }
+ ri->aat2870 = dev_get_drvdata(pdev->dev.parent);
+
+ rdev = regulator_register(&ri->desc, &pdev->dev,
+ pdev->dev.platform_data, ri, NULL);
+ if (IS_ERR(rdev)) {
+ dev_err(&pdev->dev, "Failed to register regulator %s\n",
+ ri->desc.name);
+ return PTR_ERR(rdev);
+ }
+ platform_set_drvdata(pdev, rdev);
+
+ return 0;
+}
+
+static int __devexit aat2870_regulator_remove(struct platform_device *pdev)
+{
+ struct regulator_dev *rdev = platform_get_drvdata(pdev);
+
+ regulator_unregister(rdev);
+ return 0;
+}
+
+static struct platform_driver aat2870_regulator_driver = {
+ .driver = {
+ .name = "aat2870-regulator",
+ .owner = THIS_MODULE,
+ },
+ .probe = aat2870_regulator_probe,
+ .remove = __devexit_p(aat2870_regulator_remove),
+};
+
+static int __init aat2870_regulator_init(void)
+{
+ return platform_driver_register(&aat2870_regulator_driver);
+}
+subsys_initcall(aat2870_regulator_init);
+
+static void __exit aat2870_regulator_exit(void)
+{
+ platform_driver_unregister(&aat2870_regulator_driver);
+}
+module_exit(aat2870_regulator_exit);
+
+MODULE_DESCRIPTION("AnalogicTech AAT2870 Regulator");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Jin Park <jinyoungp@nvidia.com>");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/ab3100.c b/ap/os/linux/linux-3.4.x/drivers/regulator/ab3100.c
new file mode 100644
index 0000000..042271a
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/ab3100.c
@@ -0,0 +1,695 @@
+/*
+ * drivers/regulator/ab3100.c
+ *
+ * Copyright (C) 2008-2009 ST-Ericsson AB
+ * License terms: GNU General Public License (GPL) version 2
+ * Low-level control of the AB3100 IC Low Dropout (LDO)
+ * regulators, external regulator and buck converter
+ * Author: Mattias Wallin <mattias.wallin@stericsson.com>
+ * Author: Linus Walleij <linus.walleij@stericsson.com>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/mfd/abx500.h>
+
+/* LDO registers and some handy masking definitions for AB3100 */
+#define AB3100_LDO_A 0x40
+#define AB3100_LDO_C 0x41
+#define AB3100_LDO_D 0x42
+#define AB3100_LDO_E 0x43
+#define AB3100_LDO_E_SLEEP 0x44
+#define AB3100_LDO_F 0x45
+#define AB3100_LDO_G 0x46
+#define AB3100_LDO_H 0x47
+#define AB3100_LDO_H_SLEEP_MODE 0
+#define AB3100_LDO_H_SLEEP_EN 2
+#define AB3100_LDO_ON 4
+#define AB3100_LDO_H_VSEL_AC 5
+#define AB3100_LDO_K 0x48
+#define AB3100_LDO_EXT 0x49
+#define AB3100_BUCK 0x4A
+#define AB3100_BUCK_SLEEP 0x4B
+#define AB3100_REG_ON_MASK 0x10
+
+/**
+ * struct ab3100_regulator
+ * A struct passed around the individual regulator functions
+ * @platform_device: platform device holding this regulator
+ * @dev: handle to the device
+ * @plfdata: AB3100 platform data passed in at probe time
+ * @regreg: regulator register number in the AB3100
+ * @fixed_voltage: a fixed voltage for this regulator, if this
+ * 0 the voltages array is used instead.
+ * @typ_voltages: an array of available typical voltages for
+ * this regulator
+ * @voltages_len: length of the array of available voltages
+ */
+struct ab3100_regulator {
+ struct regulator_dev *rdev;
+ struct device *dev;
+ struct ab3100_platform_data *plfdata;
+ u8 regreg;
+ int fixed_voltage;
+ int const *typ_voltages;
+ u8 voltages_len;
+};
+
+/* The order in which registers are initialized */
+static const u8 ab3100_reg_init_order[AB3100_NUM_REGULATORS+2] = {
+ AB3100_LDO_A,
+ AB3100_LDO_C,
+ AB3100_LDO_E,
+ AB3100_LDO_E_SLEEP,
+ AB3100_LDO_F,
+ AB3100_LDO_G,
+ AB3100_LDO_H,
+ AB3100_LDO_K,
+ AB3100_LDO_EXT,
+ AB3100_BUCK,
+ AB3100_BUCK_SLEEP,
+ AB3100_LDO_D,
+};
+
+/* Preset (hardware defined) voltages for these regulators */
+#define LDO_A_VOLTAGE 2750000
+#define LDO_C_VOLTAGE 2650000
+#define LDO_D_VOLTAGE 2650000
+
+static const int ldo_e_buck_typ_voltages[] = {
+ 1800000,
+ 1400000,
+ 1300000,
+ 1200000,
+ 1100000,
+ 1050000,
+ 900000,
+};
+
+static const int ldo_f_typ_voltages[] = {
+ 1800000,
+ 1400000,
+ 1300000,
+ 1200000,
+ 1100000,
+ 1050000,
+ 2500000,
+ 2650000,
+};
+
+static const int ldo_g_typ_voltages[] = {
+ 2850000,
+ 2750000,
+ 1800000,
+ 1500000,
+};
+
+static const int ldo_h_typ_voltages[] = {
+ 2750000,
+ 1800000,
+ 1500000,
+ 1200000,
+};
+
+static const int ldo_k_typ_voltages[] = {
+ 2750000,
+ 1800000,
+};
+
+
+/* The regulator devices */
+static struct ab3100_regulator
+ab3100_regulators[AB3100_NUM_REGULATORS] = {
+ {
+ .regreg = AB3100_LDO_A,
+ .fixed_voltage = LDO_A_VOLTAGE,
+ },
+ {
+ .regreg = AB3100_LDO_C,
+ .fixed_voltage = LDO_C_VOLTAGE,
+ },
+ {
+ .regreg = AB3100_LDO_D,
+ .fixed_voltage = LDO_D_VOLTAGE,
+ },
+ {
+ .regreg = AB3100_LDO_E,
+ .typ_voltages = ldo_e_buck_typ_voltages,
+ .voltages_len = ARRAY_SIZE(ldo_e_buck_typ_voltages),
+ },
+ {
+ .regreg = AB3100_LDO_F,
+ .typ_voltages = ldo_f_typ_voltages,
+ .voltages_len = ARRAY_SIZE(ldo_f_typ_voltages),
+ },
+ {
+ .regreg = AB3100_LDO_G,
+ .typ_voltages = ldo_g_typ_voltages,
+ .voltages_len = ARRAY_SIZE(ldo_g_typ_voltages),
+ },
+ {
+ .regreg = AB3100_LDO_H,
+ .typ_voltages = ldo_h_typ_voltages,
+ .voltages_len = ARRAY_SIZE(ldo_h_typ_voltages),
+ },
+ {
+ .regreg = AB3100_LDO_K,
+ .typ_voltages = ldo_k_typ_voltages,
+ .voltages_len = ARRAY_SIZE(ldo_k_typ_voltages),
+ },
+ {
+ .regreg = AB3100_LDO_EXT,
+ /* No voltages for the external regulator */
+ },
+ {
+ .regreg = AB3100_BUCK,
+ .typ_voltages = ldo_e_buck_typ_voltages,
+ .voltages_len = ARRAY_SIZE(ldo_e_buck_typ_voltages),
+ },
+};
+
+/*
+ * General functions for enable, disable and is_enabled used for
+ * LDO: A,C,E,F,G,H,K,EXT and BUCK
+ */
+static int ab3100_enable_regulator(struct regulator_dev *reg)
+{
+ struct ab3100_regulator *abreg = reg->reg_data;
+ int err;
+ u8 regval;
+
+ err = abx500_get_register_interruptible(abreg->dev, 0, abreg->regreg,
+ ®val);
+ if (err) {
+ dev_warn(®->dev, "failed to get regid %d value\n",
+ abreg->regreg);
+ return err;
+ }
+
+ /* The regulator is already on, no reason to go further */
+ if (regval & AB3100_REG_ON_MASK)
+ return 0;
+
+ regval |= AB3100_REG_ON_MASK;
+
+ err = abx500_set_register_interruptible(abreg->dev, 0, abreg->regreg,
+ regval);
+ if (err) {
+ dev_warn(®->dev, "failed to set regid %d value\n",
+ abreg->regreg);
+ return err;
+ }
+
+ return 0;
+}
+
+static int ab3100_disable_regulator(struct regulator_dev *reg)
+{
+ struct ab3100_regulator *abreg = reg->reg_data;
+ int err;
+ u8 regval;
+
+ /*
+ * LDO D is a special regulator. When it is disabled, the entire
+ * system is shut down. So this is handled specially.
+ */
+ pr_info("Called ab3100_disable_regulator\n");
+ if (abreg->regreg == AB3100_LDO_D) {
+ dev_info(®->dev, "disabling LDO D - shut down system\n");
+ /* Setting LDO D to 0x00 cuts the power to the SoC */
+ return abx500_set_register_interruptible(abreg->dev, 0,
+ AB3100_LDO_D, 0x00U);
+ }
+
+ /*
+ * All other regulators are handled here
+ */
+ err = abx500_get_register_interruptible(abreg->dev, 0, abreg->regreg,
+ ®val);
+ if (err) {
+ dev_err(®->dev, "unable to get register 0x%x\n",
+ abreg->regreg);
+ return err;
+ }
+ regval &= ~AB3100_REG_ON_MASK;
+ return abx500_set_register_interruptible(abreg->dev, 0, abreg->regreg,
+ regval);
+}
+
+static int ab3100_is_enabled_regulator(struct regulator_dev *reg)
+{
+ struct ab3100_regulator *abreg = reg->reg_data;
+ u8 regval;
+ int err;
+
+ err = abx500_get_register_interruptible(abreg->dev, 0, abreg->regreg,
+ ®val);
+ if (err) {
+ dev_err(®->dev, "unable to get register 0x%x\n",
+ abreg->regreg);
+ return err;
+ }
+
+ return regval & AB3100_REG_ON_MASK;
+}
+
+static int ab3100_list_voltage_regulator(struct regulator_dev *reg,
+ unsigned selector)
+{
+ struct ab3100_regulator *abreg = reg->reg_data;
+
+ if (selector >= abreg->voltages_len)
+ return -EINVAL;
+ return abreg->typ_voltages[selector];
+}
+
+static int ab3100_get_voltage_regulator(struct regulator_dev *reg)
+{
+ struct ab3100_regulator *abreg = reg->reg_data;
+ u8 regval;
+ int err;
+
+ /* Return the voltage for fixed regulators immediately */
+ if (abreg->fixed_voltage)
+ return abreg->fixed_voltage;
+
+ /*
+ * For variable types, read out setting and index into
+ * supplied voltage list.
+ */
+ err = abx500_get_register_interruptible(abreg->dev, 0,
+ abreg->regreg, ®val);
+ if (err) {
+ dev_warn(®->dev,
+ "failed to get regulator value in register %02x\n",
+ abreg->regreg);
+ return err;
+ }
+
+ /* The 3 highest bits index voltages */
+ regval &= 0xE0;
+ regval >>= 5;
+
+ if (regval >= abreg->voltages_len) {
+ dev_err(®->dev,
+ "regulator register %02x contains an illegal voltage setting\n",
+ abreg->regreg);
+ return -EINVAL;
+ }
+
+ return abreg->typ_voltages[regval];
+}
+
+static int ab3100_get_best_voltage_index(struct regulator_dev *reg,
+ int min_uV, int max_uV)
+{
+ struct ab3100_regulator *abreg = reg->reg_data;
+ int i;
+ int bestmatch;
+ int bestindex;
+
+ /*
+ * Locate the minimum voltage fitting the criteria on
+ * this regulator. The switchable voltages are not
+ * in strict falling order so we need to check them
+ * all for the best match.
+ */
+ bestmatch = INT_MAX;
+ bestindex = -1;
+ for (i = 0; i < abreg->voltages_len; i++) {
+ if (abreg->typ_voltages[i] <= max_uV &&
+ abreg->typ_voltages[i] >= min_uV &&
+ abreg->typ_voltages[i] < bestmatch) {
+ bestmatch = abreg->typ_voltages[i];
+ bestindex = i;
+ }
+ }
+
+ if (bestindex < 0) {
+ dev_warn(®->dev, "requested %d<=x<=%d uV, out of range!\n",
+ min_uV, max_uV);
+ return -EINVAL;
+ }
+ return bestindex;
+}
+
+static int ab3100_set_voltage_regulator(struct regulator_dev *reg,
+ int min_uV, int max_uV,
+ unsigned *selector)
+{
+ struct ab3100_regulator *abreg = reg->reg_data;
+ u8 regval;
+ int err;
+ int bestindex;
+
+ bestindex = ab3100_get_best_voltage_index(reg, min_uV, max_uV);
+ if (bestindex < 0)
+ return bestindex;
+
+ *selector = bestindex;
+
+ err = abx500_get_register_interruptible(abreg->dev, 0,
+ abreg->regreg, ®val);
+ if (err) {
+ dev_warn(®->dev,
+ "failed to get regulator register %02x\n",
+ abreg->regreg);
+ return err;
+ }
+
+ /* The highest three bits control the variable regulators */
+ regval &= ~0xE0;
+ regval |= (bestindex << 5);
+
+ err = abx500_set_register_interruptible(abreg->dev, 0,
+ abreg->regreg, regval);
+ if (err)
+ dev_warn(®->dev, "failed to set regulator register %02x\n",
+ abreg->regreg);
+
+ return err;
+}
+
+static int ab3100_set_suspend_voltage_regulator(struct regulator_dev *reg,
+ int uV)
+{
+ struct ab3100_regulator *abreg = reg->reg_data;
+ u8 regval;
+ int err;
+ int bestindex;
+ u8 targetreg;
+
+ if (abreg->regreg == AB3100_LDO_E)
+ targetreg = AB3100_LDO_E_SLEEP;
+ else if (abreg->regreg == AB3100_BUCK)
+ targetreg = AB3100_BUCK_SLEEP;
+ else
+ return -EINVAL;
+
+ /* LDO E and BUCK have special suspend voltages you can set */
+ bestindex = ab3100_get_best_voltage_index(reg, uV, uV);
+
+ err = abx500_get_register_interruptible(abreg->dev, 0,
+ targetreg, ®val);
+ if (err) {
+ dev_warn(®->dev,
+ "failed to get regulator register %02x\n",
+ targetreg);
+ return err;
+ }
+
+ /* The highest three bits control the variable regulators */
+ regval &= ~0xE0;
+ regval |= (bestindex << 5);
+
+ err = abx500_set_register_interruptible(abreg->dev, 0,
+ targetreg, regval);
+ if (err)
+ dev_warn(®->dev, "failed to set regulator register %02x\n",
+ abreg->regreg);
+
+ return err;
+}
+
+/*
+ * The external regulator can just define a fixed voltage.
+ */
+static int ab3100_get_voltage_regulator_external(struct regulator_dev *reg)
+{
+ struct ab3100_regulator *abreg = reg->reg_data;
+
+ return abreg->plfdata->external_voltage;
+}
+
+static int ab3100_enable_time_regulator(struct regulator_dev *reg)
+{
+ struct ab3100_regulator *abreg = reg->reg_data;
+
+ /* Per-regulator power on delay from spec */
+ switch (abreg->regreg) {
+ case AB3100_LDO_A: /* Fallthrough */
+ case AB3100_LDO_C: /* Fallthrough */
+ case AB3100_LDO_D: /* Fallthrough */
+ case AB3100_LDO_E: /* Fallthrough */
+ case AB3100_LDO_H: /* Fallthrough */
+ case AB3100_LDO_K:
+ return 200;
+ case AB3100_LDO_F:
+ return 600;
+ case AB3100_LDO_G:
+ return 400;
+ case AB3100_BUCK:
+ return 1000;
+ default:
+ break;
+ }
+ return 0;
+}
+
+static struct regulator_ops regulator_ops_fixed = {
+ .enable = ab3100_enable_regulator,
+ .disable = ab3100_disable_regulator,
+ .is_enabled = ab3100_is_enabled_regulator,
+ .get_voltage = ab3100_get_voltage_regulator,
+ .enable_time = ab3100_enable_time_regulator,
+};
+
+static struct regulator_ops regulator_ops_variable = {
+ .enable = ab3100_enable_regulator,
+ .disable = ab3100_disable_regulator,
+ .is_enabled = ab3100_is_enabled_regulator,
+ .get_voltage = ab3100_get_voltage_regulator,
+ .set_voltage = ab3100_set_voltage_regulator,
+ .list_voltage = ab3100_list_voltage_regulator,
+ .enable_time = ab3100_enable_time_regulator,
+};
+
+static struct regulator_ops regulator_ops_variable_sleepable = {
+ .enable = ab3100_enable_regulator,
+ .disable = ab3100_disable_regulator,
+ .is_enabled = ab3100_is_enabled_regulator,
+ .get_voltage = ab3100_get_voltage_regulator,
+ .set_voltage = ab3100_set_voltage_regulator,
+ .set_suspend_voltage = ab3100_set_suspend_voltage_regulator,
+ .list_voltage = ab3100_list_voltage_regulator,
+ .enable_time = ab3100_enable_time_regulator,
+};
+
+/*
+ * LDO EXT is an external regulator so it is really
+ * not possible to set any voltage locally here, AB3100
+ * is an on/off switch plain an simple. The external
+ * voltage is defined in the board set-up if any.
+ */
+static struct regulator_ops regulator_ops_external = {
+ .enable = ab3100_enable_regulator,
+ .disable = ab3100_disable_regulator,
+ .is_enabled = ab3100_is_enabled_regulator,
+ .get_voltage = ab3100_get_voltage_regulator_external,
+};
+
+static struct regulator_desc
+ab3100_regulator_desc[AB3100_NUM_REGULATORS] = {
+ {
+ .name = "LDO_A",
+ .id = AB3100_LDO_A,
+ .ops = ®ulator_ops_fixed,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO_C",
+ .id = AB3100_LDO_C,
+ .ops = ®ulator_ops_fixed,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO_D",
+ .id = AB3100_LDO_D,
+ .ops = ®ulator_ops_fixed,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO_E",
+ .id = AB3100_LDO_E,
+ .ops = ®ulator_ops_variable_sleepable,
+ .n_voltages = ARRAY_SIZE(ldo_e_buck_typ_voltages),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO_F",
+ .id = AB3100_LDO_F,
+ .ops = ®ulator_ops_variable,
+ .n_voltages = ARRAY_SIZE(ldo_f_typ_voltages),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO_G",
+ .id = AB3100_LDO_G,
+ .ops = ®ulator_ops_variable,
+ .n_voltages = ARRAY_SIZE(ldo_g_typ_voltages),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO_H",
+ .id = AB3100_LDO_H,
+ .ops = ®ulator_ops_variable,
+ .n_voltages = ARRAY_SIZE(ldo_h_typ_voltages),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO_K",
+ .id = AB3100_LDO_K,
+ .ops = ®ulator_ops_variable,
+ .n_voltages = ARRAY_SIZE(ldo_k_typ_voltages),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO_EXT",
+ .id = AB3100_LDO_EXT,
+ .ops = ®ulator_ops_external,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "BUCK",
+ .id = AB3100_BUCK,
+ .ops = ®ulator_ops_variable_sleepable,
+ .n_voltages = ARRAY_SIZE(ldo_e_buck_typ_voltages),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+};
+
+/*
+ * NOTE: the following functions are regulators pluralis - it is the
+ * binding to the AB3100 core driver and the parent platform device
+ * for all the different regulators.
+ */
+
+static int __devinit ab3100_regulators_probe(struct platform_device *pdev)
+{
+ struct ab3100_platform_data *plfdata = pdev->dev.platform_data;
+ int err = 0;
+ u8 data;
+ int i;
+
+ /* Check chip state */
+ err = abx500_get_register_interruptible(&pdev->dev, 0,
+ AB3100_LDO_D, &data);
+ if (err) {
+ dev_err(&pdev->dev, "could not read initial status of LDO_D\n");
+ return err;
+ }
+ if (data & 0x10)
+ dev_notice(&pdev->dev,
+ "chip is already in active mode (Warm start)\n");
+ else
+ dev_notice(&pdev->dev,
+ "chip is in inactive mode (Cold start)\n");
+
+ /* Set up regulators */
+ for (i = 0; i < ARRAY_SIZE(ab3100_reg_init_order); i++) {
+ err = abx500_set_register_interruptible(&pdev->dev, 0,
+ ab3100_reg_init_order[i],
+ plfdata->reg_initvals[i]);
+ if (err) {
+ dev_err(&pdev->dev, "regulator initialization failed with error %d\n",
+ err);
+ return err;
+ }
+ }
+
+ /* Register the regulators */
+ for (i = 0; i < AB3100_NUM_REGULATORS; i++) {
+ struct ab3100_regulator *reg = &ab3100_regulators[i];
+ struct regulator_dev *rdev;
+
+ /*
+ * Initialize per-regulator struct.
+ * Inherit platform data, this comes down from the
+ * i2c boarddata, from the machine. So if you want to
+ * see what it looks like for a certain machine, go
+ * into the machine I2C setup.
+ */
+ reg->dev = &pdev->dev;
+ reg->plfdata = plfdata;
+
+ /*
+ * Register the regulator, pass around
+ * the ab3100_regulator struct
+ */
+ rdev = regulator_register(&ab3100_regulator_desc[i],
+ &pdev->dev,
+ &plfdata->reg_constraints[i],
+ reg, NULL);
+
+ if (IS_ERR(rdev)) {
+ err = PTR_ERR(rdev);
+ dev_err(&pdev->dev,
+ "%s: failed to register regulator %s err %d\n",
+ __func__, ab3100_regulator_desc[i].name,
+ err);
+ /* remove the already registered regulators */
+ while (--i >= 0)
+ regulator_unregister(ab3100_regulators[i].rdev);
+ return err;
+ }
+
+ /* Then set a pointer back to the registered regulator */
+ reg->rdev = rdev;
+ }
+
+ return 0;
+}
+
+static int __devexit ab3100_regulators_remove(struct platform_device *pdev)
+{
+ int i;
+
+ for (i = 0; i < AB3100_NUM_REGULATORS; i++) {
+ struct ab3100_regulator *reg = &ab3100_regulators[i];
+
+ regulator_unregister(reg->rdev);
+ }
+ return 0;
+}
+
+static struct platform_driver ab3100_regulators_driver = {
+ .driver = {
+ .name = "ab3100-regulators",
+ .owner = THIS_MODULE,
+ },
+ .probe = ab3100_regulators_probe,
+ .remove = __devexit_p(ab3100_regulators_remove),
+};
+
+static __init int ab3100_regulators_init(void)
+{
+ return platform_driver_register(&ab3100_regulators_driver);
+}
+
+static __exit void ab3100_regulators_exit(void)
+{
+ platform_driver_unregister(&ab3100_regulators_driver);
+}
+
+subsys_initcall(ab3100_regulators_init);
+module_exit(ab3100_regulators_exit);
+
+MODULE_AUTHOR("Mattias Wallin <mattias.wallin@stericsson.com>");
+MODULE_DESCRIPTION("AB3100 Regulator driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:ab3100-regulators");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/ab8500.c b/ap/os/linux/linux-3.4.x/drivers/regulator/ab8500.c
new file mode 100644
index 0000000..c7ee4c1
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/ab8500.c
@@ -0,0 +1,890 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * License Terms: GNU General Public License v2
+ *
+ * Authors: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson
+ * Bengt Jonsson <bengt.g.jonsson@stericsson.com> for ST-Ericsson
+ *
+ * AB8500 peripheral regulators
+ *
+ * AB8500 supports the following regulators:
+ * VAUX1/2/3, VINTCORE, VTVOUT, VUSB, VAUDIO, VAMIC1/2, VDMIC, VANA
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/abx500.h>
+#include <linux/mfd/abx500/ab8500.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/ab8500.h>
+
+/**
+ * struct ab8500_regulator_info - ab8500 regulator information
+ * @dev: device pointer
+ * @desc: regulator description
+ * @regulator_dev: regulator device
+ * @max_uV: maximum voltage (for variable voltage supplies)
+ * @min_uV: minimum voltage (for variable voltage supplies)
+ * @fixed_uV: typical voltage (for fixed voltage supplies)
+ * @update_bank: bank to control on/off
+ * @update_reg: register to control on/off
+ * @update_mask: mask to enable/disable regulator
+ * @update_val_enable: bits to enable the regulator in normal (high power) mode
+ * @voltage_bank: bank to control regulator voltage
+ * @voltage_reg: register to control regulator voltage
+ * @voltage_mask: mask to control regulator voltage
+ * @voltages: supported voltage table
+ * @voltages_len: number of supported voltages for the regulator
+ * @delay: startup/set voltage delay in us
+ */
+struct ab8500_regulator_info {
+ struct device *dev;
+ struct regulator_desc desc;
+ struct regulator_dev *regulator;
+ int max_uV;
+ int min_uV;
+ int fixed_uV;
+ u8 update_bank;
+ u8 update_reg;
+ u8 update_mask;
+ u8 update_val_enable;
+ u8 voltage_bank;
+ u8 voltage_reg;
+ u8 voltage_mask;
+ int const *voltages;
+ int voltages_len;
+ unsigned int delay;
+};
+
+/* voltage tables for the vauxn/vintcore supplies */
+static const int ldo_vauxn_voltages[] = {
+ 1100000,
+ 1200000,
+ 1300000,
+ 1400000,
+ 1500000,
+ 1800000,
+ 1850000,
+ 1900000,
+ 2500000,
+ 2650000,
+ 2700000,
+ 2750000,
+ 2800000,
+ 2900000,
+ 3000000,
+ 3300000,
+};
+
+static const int ldo_vaux3_voltages[] = {
+ 1200000,
+ 1500000,
+ 1800000,
+ 2100000,
+ 2500000,
+ 2750000,
+ 2790000,
+ 2910000,
+};
+
+static const int ldo_vintcore_voltages[] = {
+ 1200000,
+ 1225000,
+ 1250000,
+ 1275000,
+ 1300000,
+ 1325000,
+ 1350000,
+};
+
+static int ab8500_regulator_enable(struct regulator_dev *rdev)
+{
+ int ret;
+ struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
+
+ if (info == NULL) {
+ dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
+ return -EINVAL;
+ }
+
+ ret = abx500_mask_and_set_register_interruptible(info->dev,
+ info->update_bank, info->update_reg,
+ info->update_mask, info->update_val_enable);
+ if (ret < 0)
+ dev_err(rdev_get_dev(rdev),
+ "couldn't set enable bits for regulator\n");
+
+ dev_vdbg(rdev_get_dev(rdev),
+ "%s-enable (bank, reg, mask, value): 0x%x, 0x%x, 0x%x, 0x%x\n",
+ info->desc.name, info->update_bank, info->update_reg,
+ info->update_mask, info->update_val_enable);
+
+ return ret;
+}
+
+static int ab8500_regulator_disable(struct regulator_dev *rdev)
+{
+ int ret;
+ struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
+
+ if (info == NULL) {
+ dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
+ return -EINVAL;
+ }
+
+ ret = abx500_mask_and_set_register_interruptible(info->dev,
+ info->update_bank, info->update_reg,
+ info->update_mask, 0x0);
+ if (ret < 0)
+ dev_err(rdev_get_dev(rdev),
+ "couldn't set disable bits for regulator\n");
+
+ dev_vdbg(rdev_get_dev(rdev),
+ "%s-disable (bank, reg, mask, value): 0x%x, 0x%x, 0x%x, 0x%x\n",
+ info->desc.name, info->update_bank, info->update_reg,
+ info->update_mask, 0x0);
+
+ return ret;
+}
+
+static int ab8500_regulator_is_enabled(struct regulator_dev *rdev)
+{
+ int ret;
+ struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
+ u8 regval;
+
+ if (info == NULL) {
+ dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
+ return -EINVAL;
+ }
+
+ ret = abx500_get_register_interruptible(info->dev,
+ info->update_bank, info->update_reg, ®val);
+ if (ret < 0) {
+ dev_err(rdev_get_dev(rdev),
+ "couldn't read 0x%x register\n", info->update_reg);
+ return ret;
+ }
+
+ dev_vdbg(rdev_get_dev(rdev),
+ "%s-is_enabled (bank, reg, mask, value): 0x%x, 0x%x, 0x%x,"
+ " 0x%x\n",
+ info->desc.name, info->update_bank, info->update_reg,
+ info->update_mask, regval);
+
+ if (regval & info->update_mask)
+ return true;
+ else
+ return false;
+}
+
+static int ab8500_list_voltage(struct regulator_dev *rdev, unsigned selector)
+{
+ struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
+
+ if (info == NULL) {
+ dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
+ return -EINVAL;
+ }
+
+ /* return the uV for the fixed regulators */
+ if (info->fixed_uV)
+ return info->fixed_uV;
+
+ if (selector >= info->voltages_len)
+ return -EINVAL;
+
+ return info->voltages[selector];
+}
+
+static int ab8500_regulator_get_voltage_sel(struct regulator_dev *rdev)
+{
+ int ret, val;
+ struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
+ u8 regval;
+
+ if (info == NULL) {
+ dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
+ return -EINVAL;
+ }
+
+ ret = abx500_get_register_interruptible(info->dev,
+ info->voltage_bank, info->voltage_reg, ®val);
+ if (ret < 0) {
+ dev_err(rdev_get_dev(rdev),
+ "couldn't read voltage reg for regulator\n");
+ return ret;
+ }
+
+ dev_vdbg(rdev_get_dev(rdev),
+ "%s-get_voltage (bank, reg, mask, value): 0x%x, 0x%x, 0x%x,"
+ " 0x%x\n",
+ info->desc.name, info->voltage_bank, info->voltage_reg,
+ info->voltage_mask, regval);
+
+ /* vintcore has a different layout */
+ val = regval & info->voltage_mask;
+ if (info->desc.id == AB8500_LDO_INTCORE)
+ return val >> 0x3;
+ else
+ return val;
+}
+
+static int ab8500_get_best_voltage_index(struct regulator_dev *rdev,
+ int min_uV, int max_uV)
+{
+ struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
+ int i;
+
+ /* check the supported voltage */
+ for (i = 0; i < info->voltages_len; i++) {
+ if ((info->voltages[i] >= min_uV) &&
+ (info->voltages[i] <= max_uV))
+ return i;
+ }
+
+ return -EINVAL;
+}
+
+static int ab8500_regulator_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV,
+ unsigned *selector)
+{
+ int ret;
+ struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
+ u8 regval;
+
+ if (info == NULL) {
+ dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
+ return -EINVAL;
+ }
+
+ /* get the appropriate voltages within the range */
+ ret = ab8500_get_best_voltage_index(rdev, min_uV, max_uV);
+ if (ret < 0) {
+ dev_err(rdev_get_dev(rdev),
+ "couldn't get best voltage for regulator\n");
+ return ret;
+ }
+
+ *selector = ret;
+
+ /* set the registers for the request */
+ regval = (u8)ret;
+ ret = abx500_mask_and_set_register_interruptible(info->dev,
+ info->voltage_bank, info->voltage_reg,
+ info->voltage_mask, regval);
+ if (ret < 0)
+ dev_err(rdev_get_dev(rdev),
+ "couldn't set voltage reg for regulator\n");
+
+ dev_vdbg(rdev_get_dev(rdev),
+ "%s-set_voltage (bank, reg, mask, value): 0x%x, 0x%x, 0x%x,"
+ " 0x%x\n",
+ info->desc.name, info->voltage_bank, info->voltage_reg,
+ info->voltage_mask, regval);
+
+ return ret;
+}
+
+static int ab8500_regulator_enable_time(struct regulator_dev *rdev)
+{
+ struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
+
+ return info->delay;
+}
+
+static int ab8500_regulator_set_voltage_time_sel(struct regulator_dev *rdev,
+ unsigned int old_sel,
+ unsigned int new_sel)
+{
+ struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
+ int ret;
+
+ /* If the regulator isn't on, it won't take time here */
+ ret = ab8500_regulator_is_enabled(rdev);
+ if (ret < 0)
+ return ret;
+ if (!ret)
+ return 0;
+ return info->delay;
+}
+
+static struct regulator_ops ab8500_regulator_ops = {
+ .enable = ab8500_regulator_enable,
+ .disable = ab8500_regulator_disable,
+ .is_enabled = ab8500_regulator_is_enabled,
+ .get_voltage_sel = ab8500_regulator_get_voltage_sel,
+ .set_voltage = ab8500_regulator_set_voltage,
+ .list_voltage = ab8500_list_voltage,
+ .enable_time = ab8500_regulator_enable_time,
+ .set_voltage_time_sel = ab8500_regulator_set_voltage_time_sel,
+};
+
+static int ab8500_fixed_get_voltage(struct regulator_dev *rdev)
+{
+ struct ab8500_regulator_info *info = rdev_get_drvdata(rdev);
+
+ if (info == NULL) {
+ dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
+ return -EINVAL;
+ }
+
+ return info->fixed_uV;
+}
+
+static struct regulator_ops ab8500_regulator_fixed_ops = {
+ .enable = ab8500_regulator_enable,
+ .disable = ab8500_regulator_disable,
+ .is_enabled = ab8500_regulator_is_enabled,
+ .get_voltage = ab8500_fixed_get_voltage,
+ .list_voltage = ab8500_list_voltage,
+ .enable_time = ab8500_regulator_enable_time,
+ .set_voltage_time_sel = ab8500_regulator_set_voltage_time_sel,
+};
+
+static struct ab8500_regulator_info
+ ab8500_regulator_info[AB8500_NUM_REGULATORS] = {
+ /*
+ * Variable Voltage Regulators
+ * name, min mV, max mV,
+ * update bank, reg, mask, enable val
+ * volt bank, reg, mask, table, table length
+ */
+ [AB8500_LDO_AUX1] = {
+ .desc = {
+ .name = "LDO-AUX1",
+ .ops = &ab8500_regulator_ops,
+ .type = REGULATOR_VOLTAGE,
+ .id = AB8500_LDO_AUX1,
+ .owner = THIS_MODULE,
+ .n_voltages = ARRAY_SIZE(ldo_vauxn_voltages),
+ },
+ .min_uV = 1100000,
+ .max_uV = 3300000,
+ .update_bank = 0x04,
+ .update_reg = 0x09,
+ .update_mask = 0x03,
+ .update_val_enable = 0x01,
+ .voltage_bank = 0x04,
+ .voltage_reg = 0x1f,
+ .voltage_mask = 0x0f,
+ .voltages = ldo_vauxn_voltages,
+ .voltages_len = ARRAY_SIZE(ldo_vauxn_voltages),
+ },
+ [AB8500_LDO_AUX2] = {
+ .desc = {
+ .name = "LDO-AUX2",
+ .ops = &ab8500_regulator_ops,
+ .type = REGULATOR_VOLTAGE,
+ .id = AB8500_LDO_AUX2,
+ .owner = THIS_MODULE,
+ .n_voltages = ARRAY_SIZE(ldo_vauxn_voltages),
+ },
+ .min_uV = 1100000,
+ .max_uV = 3300000,
+ .update_bank = 0x04,
+ .update_reg = 0x09,
+ .update_mask = 0x0c,
+ .update_val_enable = 0x04,
+ .voltage_bank = 0x04,
+ .voltage_reg = 0x20,
+ .voltage_mask = 0x0f,
+ .voltages = ldo_vauxn_voltages,
+ .voltages_len = ARRAY_SIZE(ldo_vauxn_voltages),
+ },
+ [AB8500_LDO_AUX3] = {
+ .desc = {
+ .name = "LDO-AUX3",
+ .ops = &ab8500_regulator_ops,
+ .type = REGULATOR_VOLTAGE,
+ .id = AB8500_LDO_AUX3,
+ .owner = THIS_MODULE,
+ .n_voltages = ARRAY_SIZE(ldo_vaux3_voltages),
+ },
+ .min_uV = 1100000,
+ .max_uV = 3300000,
+ .update_bank = 0x04,
+ .update_reg = 0x0a,
+ .update_mask = 0x03,
+ .update_val_enable = 0x01,
+ .voltage_bank = 0x04,
+ .voltage_reg = 0x21,
+ .voltage_mask = 0x07,
+ .voltages = ldo_vaux3_voltages,
+ .voltages_len = ARRAY_SIZE(ldo_vaux3_voltages),
+ },
+ [AB8500_LDO_INTCORE] = {
+ .desc = {
+ .name = "LDO-INTCORE",
+ .ops = &ab8500_regulator_ops,
+ .type = REGULATOR_VOLTAGE,
+ .id = AB8500_LDO_INTCORE,
+ .owner = THIS_MODULE,
+ .n_voltages = ARRAY_SIZE(ldo_vintcore_voltages),
+ },
+ .min_uV = 1100000,
+ .max_uV = 3300000,
+ .update_bank = 0x03,
+ .update_reg = 0x80,
+ .update_mask = 0x44,
+ .update_val_enable = 0x04,
+ .voltage_bank = 0x03,
+ .voltage_reg = 0x80,
+ .voltage_mask = 0x38,
+ .voltages = ldo_vintcore_voltages,
+ .voltages_len = ARRAY_SIZE(ldo_vintcore_voltages),
+ },
+
+ /*
+ * Fixed Voltage Regulators
+ * name, fixed mV,
+ * update bank, reg, mask, enable val
+ */
+ [AB8500_LDO_TVOUT] = {
+ .desc = {
+ .name = "LDO-TVOUT",
+ .ops = &ab8500_regulator_fixed_ops,
+ .type = REGULATOR_VOLTAGE,
+ .id = AB8500_LDO_TVOUT,
+ .owner = THIS_MODULE,
+ .n_voltages = 1,
+ },
+ .delay = 10000,
+ .fixed_uV = 2000000,
+ .update_bank = 0x03,
+ .update_reg = 0x80,
+ .update_mask = 0x82,
+ .update_val_enable = 0x02,
+ },
+ [AB8500_LDO_USB] = {
+ .desc = {
+ .name = "LDO-USB",
+ .ops = &ab8500_regulator_fixed_ops,
+ .type = REGULATOR_VOLTAGE,
+ .id = AB8500_LDO_USB,
+ .owner = THIS_MODULE,
+ .n_voltages = 1,
+ },
+ .fixed_uV = 3300000,
+ .update_bank = 0x03,
+ .update_reg = 0x82,
+ .update_mask = 0x03,
+ .update_val_enable = 0x01,
+ },
+ [AB8500_LDO_AUDIO] = {
+ .desc = {
+ .name = "LDO-AUDIO",
+ .ops = &ab8500_regulator_fixed_ops,
+ .type = REGULATOR_VOLTAGE,
+ .id = AB8500_LDO_AUDIO,
+ .owner = THIS_MODULE,
+ .n_voltages = 1,
+ },
+ .fixed_uV = 2000000,
+ .update_bank = 0x03,
+ .update_reg = 0x83,
+ .update_mask = 0x02,
+ .update_val_enable = 0x02,
+ },
+ [AB8500_LDO_ANAMIC1] = {
+ .desc = {
+ .name = "LDO-ANAMIC1",
+ .ops = &ab8500_regulator_fixed_ops,
+ .type = REGULATOR_VOLTAGE,
+ .id = AB8500_LDO_ANAMIC1,
+ .owner = THIS_MODULE,
+ .n_voltages = 1,
+ },
+ .fixed_uV = 2050000,
+ .update_bank = 0x03,
+ .update_reg = 0x83,
+ .update_mask = 0x08,
+ .update_val_enable = 0x08,
+ },
+ [AB8500_LDO_ANAMIC2] = {
+ .desc = {
+ .name = "LDO-ANAMIC2",
+ .ops = &ab8500_regulator_fixed_ops,
+ .type = REGULATOR_VOLTAGE,
+ .id = AB8500_LDO_ANAMIC2,
+ .owner = THIS_MODULE,
+ .n_voltages = 1,
+ },
+ .fixed_uV = 2050000,
+ .update_bank = 0x03,
+ .update_reg = 0x83,
+ .update_mask = 0x10,
+ .update_val_enable = 0x10,
+ },
+ [AB8500_LDO_DMIC] = {
+ .desc = {
+ .name = "LDO-DMIC",
+ .ops = &ab8500_regulator_fixed_ops,
+ .type = REGULATOR_VOLTAGE,
+ .id = AB8500_LDO_DMIC,
+ .owner = THIS_MODULE,
+ .n_voltages = 1,
+ },
+ .fixed_uV = 1800000,
+ .update_bank = 0x03,
+ .update_reg = 0x83,
+ .update_mask = 0x04,
+ .update_val_enable = 0x04,
+ },
+ [AB8500_LDO_ANA] = {
+ .desc = {
+ .name = "LDO-ANA",
+ .ops = &ab8500_regulator_fixed_ops,
+ .type = REGULATOR_VOLTAGE,
+ .id = AB8500_LDO_ANA,
+ .owner = THIS_MODULE,
+ .n_voltages = 1,
+ },
+ .fixed_uV = 1200000,
+ .update_bank = 0x04,
+ .update_reg = 0x06,
+ .update_mask = 0x0c,
+ .update_val_enable = 0x04,
+ },
+
+
+};
+
+struct ab8500_reg_init {
+ u8 bank;
+ u8 addr;
+ u8 mask;
+};
+
+#define REG_INIT(_id, _bank, _addr, _mask) \
+ [_id] = { \
+ .bank = _bank, \
+ .addr = _addr, \
+ .mask = _mask, \
+ }
+
+static struct ab8500_reg_init ab8500_reg_init[] = {
+ /*
+ * 0x30, VanaRequestCtrl
+ * 0x0C, VpllRequestCtrl
+ * 0xc0, VextSupply1RequestCtrl
+ */
+ REG_INIT(AB8500_REGUREQUESTCTRL2, 0x03, 0x04, 0xfc),
+ /*
+ * 0x03, VextSupply2RequestCtrl
+ * 0x0c, VextSupply3RequestCtrl
+ * 0x30, Vaux1RequestCtrl
+ * 0xc0, Vaux2RequestCtrl
+ */
+ REG_INIT(AB8500_REGUREQUESTCTRL3, 0x03, 0x05, 0xff),
+ /*
+ * 0x03, Vaux3RequestCtrl
+ * 0x04, SwHPReq
+ */
+ REG_INIT(AB8500_REGUREQUESTCTRL4, 0x03, 0x06, 0x07),
+ /*
+ * 0x08, VanaSysClkReq1HPValid
+ * 0x20, Vaux1SysClkReq1HPValid
+ * 0x40, Vaux2SysClkReq1HPValid
+ * 0x80, Vaux3SysClkReq1HPValid
+ */
+ REG_INIT(AB8500_REGUSYSCLKREQ1HPVALID1, 0x03, 0x07, 0xe8),
+ /*
+ * 0x10, VextSupply1SysClkReq1HPValid
+ * 0x20, VextSupply2SysClkReq1HPValid
+ * 0x40, VextSupply3SysClkReq1HPValid
+ */
+ REG_INIT(AB8500_REGUSYSCLKREQ1HPVALID2, 0x03, 0x08, 0x70),
+ /*
+ * 0x08, VanaHwHPReq1Valid
+ * 0x20, Vaux1HwHPReq1Valid
+ * 0x40, Vaux2HwHPReq1Valid
+ * 0x80, Vaux3HwHPReq1Valid
+ */
+ REG_INIT(AB8500_REGUHWHPREQ1VALID1, 0x03, 0x09, 0xe8),
+ /*
+ * 0x01, VextSupply1HwHPReq1Valid
+ * 0x02, VextSupply2HwHPReq1Valid
+ * 0x04, VextSupply3HwHPReq1Valid
+ */
+ REG_INIT(AB8500_REGUHWHPREQ1VALID2, 0x03, 0x0a, 0x07),
+ /*
+ * 0x08, VanaHwHPReq2Valid
+ * 0x20, Vaux1HwHPReq2Valid
+ * 0x40, Vaux2HwHPReq2Valid
+ * 0x80, Vaux3HwHPReq2Valid
+ */
+ REG_INIT(AB8500_REGUHWHPREQ2VALID1, 0x03, 0x0b, 0xe8),
+ /*
+ * 0x01, VextSupply1HwHPReq2Valid
+ * 0x02, VextSupply2HwHPReq2Valid
+ * 0x04, VextSupply3HwHPReq2Valid
+ */
+ REG_INIT(AB8500_REGUHWHPREQ2VALID2, 0x03, 0x0c, 0x07),
+ /*
+ * 0x20, VanaSwHPReqValid
+ * 0x80, Vaux1SwHPReqValid
+ */
+ REG_INIT(AB8500_REGUSWHPREQVALID1, 0x03, 0x0d, 0xa0),
+ /*
+ * 0x01, Vaux2SwHPReqValid
+ * 0x02, Vaux3SwHPReqValid
+ * 0x04, VextSupply1SwHPReqValid
+ * 0x08, VextSupply2SwHPReqValid
+ * 0x10, VextSupply3SwHPReqValid
+ */
+ REG_INIT(AB8500_REGUSWHPREQVALID2, 0x03, 0x0e, 0x1f),
+ /*
+ * 0x02, SysClkReq2Valid1
+ * ...
+ * 0x80, SysClkReq8Valid1
+ */
+ REG_INIT(AB8500_REGUSYSCLKREQVALID1, 0x03, 0x0f, 0xfe),
+ /*
+ * 0x02, SysClkReq2Valid2
+ * ...
+ * 0x80, SysClkReq8Valid2
+ */
+ REG_INIT(AB8500_REGUSYSCLKREQVALID2, 0x03, 0x10, 0xfe),
+ /*
+ * 0x02, VTVoutEna
+ * 0x04, Vintcore12Ena
+ * 0x38, Vintcore12Sel
+ * 0x40, Vintcore12LP
+ * 0x80, VTVoutLP
+ */
+ REG_INIT(AB8500_REGUMISC1, 0x03, 0x80, 0xfe),
+ /*
+ * 0x02, VaudioEna
+ * 0x04, VdmicEna
+ * 0x08, Vamic1Ena
+ * 0x10, Vamic2Ena
+ */
+ REG_INIT(AB8500_VAUDIOSUPPLY, 0x03, 0x83, 0x1e),
+ /*
+ * 0x01, Vamic1_dzout
+ * 0x02, Vamic2_dzout
+ */
+ REG_INIT(AB8500_REGUCTRL1VAMIC, 0x03, 0x84, 0x03),
+ /*
+ * 0x0c, VanaRegu
+ * 0x03, VpllRegu
+ */
+ REG_INIT(AB8500_VPLLVANAREGU, 0x04, 0x06, 0x0f),
+ /*
+ * 0x01, VrefDDREna
+ * 0x02, VrefDDRSleepMode
+ */
+ REG_INIT(AB8500_VREFDDR, 0x04, 0x07, 0x03),
+ /*
+ * 0x03, VextSupply1Regu
+ * 0x0c, VextSupply2Regu
+ * 0x30, VextSupply3Regu
+ * 0x40, ExtSupply2Bypass
+ * 0x80, ExtSupply3Bypass
+ */
+ REG_INIT(AB8500_EXTSUPPLYREGU, 0x04, 0x08, 0xff),
+ /*
+ * 0x03, Vaux1Regu
+ * 0x0c, Vaux2Regu
+ */
+ REG_INIT(AB8500_VAUX12REGU, 0x04, 0x09, 0x0f),
+ /*
+ * 0x03, Vaux3Regu
+ */
+ REG_INIT(AB8500_VRF1VAUX3REGU, 0x04, 0x0a, 0x03),
+ /*
+ * 0x3f, Vsmps1Sel1
+ */
+ REG_INIT(AB8500_VSMPS1SEL1, 0x04, 0x13, 0x3f),
+ /*
+ * 0x0f, Vaux1Sel
+ */
+ REG_INIT(AB8500_VAUX1SEL, 0x04, 0x1f, 0x0f),
+ /*
+ * 0x0f, Vaux2Sel
+ */
+ REG_INIT(AB8500_VAUX2SEL, 0x04, 0x20, 0x0f),
+ /*
+ * 0x07, Vaux3Sel
+ */
+ REG_INIT(AB8500_VRF1VAUX3SEL, 0x04, 0x21, 0x07),
+ /*
+ * 0x01, VextSupply12LP
+ */
+ REG_INIT(AB8500_REGUCTRL2SPARE, 0x04, 0x22, 0x01),
+ /*
+ * 0x04, Vaux1Disch
+ * 0x08, Vaux2Disch
+ * 0x10, Vaux3Disch
+ * 0x20, Vintcore12Disch
+ * 0x40, VTVoutDisch
+ * 0x80, VaudioDisch
+ */
+ REG_INIT(AB8500_REGUCTRLDISCH, 0x04, 0x43, 0xfc),
+ /*
+ * 0x02, VanaDisch
+ * 0x04, VdmicPullDownEna
+ * 0x10, VdmicDisch
+ */
+ REG_INIT(AB8500_REGUCTRLDISCH2, 0x04, 0x44, 0x16),
+};
+
+static __devinit int ab8500_regulator_probe(struct platform_device *pdev)
+{
+ struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
+ struct ab8500_platform_data *pdata;
+ int i, err;
+
+ if (!ab8500) {
+ dev_err(&pdev->dev, "null mfd parent\n");
+ return -EINVAL;
+ }
+ pdata = dev_get_platdata(ab8500->dev);
+ if (!pdata) {
+ dev_err(&pdev->dev, "null pdata\n");
+ return -EINVAL;
+ }
+
+ /* make sure the platform data has the correct size */
+ if (pdata->num_regulator != ARRAY_SIZE(ab8500_regulator_info)) {
+ dev_err(&pdev->dev, "Configuration error: size mismatch.\n");
+ return -EINVAL;
+ }
+
+ /* initialize registers */
+ for (i = 0; i < pdata->num_regulator_reg_init; i++) {
+ int id;
+ u8 value;
+
+ id = pdata->regulator_reg_init[i].id;
+ value = pdata->regulator_reg_init[i].value;
+
+ /* check for configuration errors */
+ if (id >= AB8500_NUM_REGULATOR_REGISTERS) {
+ dev_err(&pdev->dev,
+ "Configuration error: id outside range.\n");
+ return -EINVAL;
+ }
+ if (value & ~ab8500_reg_init[id].mask) {
+ dev_err(&pdev->dev,
+ "Configuration error: value outside mask.\n");
+ return -EINVAL;
+ }
+
+ /* initialize register */
+ err = abx500_mask_and_set_register_interruptible(&pdev->dev,
+ ab8500_reg_init[id].bank,
+ ab8500_reg_init[id].addr,
+ ab8500_reg_init[id].mask,
+ value);
+ if (err < 0) {
+ dev_err(&pdev->dev,
+ "Failed to initialize 0x%02x, 0x%02x.\n",
+ ab8500_reg_init[id].bank,
+ ab8500_reg_init[id].addr);
+ return err;
+ }
+ dev_vdbg(&pdev->dev,
+ " init: 0x%02x, 0x%02x, 0x%02x, 0x%02x\n",
+ ab8500_reg_init[id].bank,
+ ab8500_reg_init[id].addr,
+ ab8500_reg_init[id].mask,
+ value);
+ }
+
+ /* register all regulators */
+ for (i = 0; i < ARRAY_SIZE(ab8500_regulator_info); i++) {
+ struct ab8500_regulator_info *info = NULL;
+
+ /* assign per-regulator data */
+ info = &ab8500_regulator_info[i];
+ info->dev = &pdev->dev;
+
+ /* fix for hardware before ab8500v2.0 */
+ if (abx500_get_chip_id(info->dev) < 0x20) {
+ if (info->desc.id == AB8500_LDO_AUX3) {
+ info->desc.n_voltages =
+ ARRAY_SIZE(ldo_vauxn_voltages);
+ info->voltages = ldo_vauxn_voltages;
+ info->voltages_len =
+ ARRAY_SIZE(ldo_vauxn_voltages);
+ info->voltage_mask = 0xf;
+ }
+ }
+
+ /* register regulator with framework */
+ info->regulator = regulator_register(&info->desc, &pdev->dev,
+ &pdata->regulator[i], info, NULL);
+ if (IS_ERR(info->regulator)) {
+ err = PTR_ERR(info->regulator);
+ dev_err(&pdev->dev, "failed to register regulator %s\n",
+ info->desc.name);
+ /* when we fail, un-register all earlier regulators */
+ while (--i >= 0) {
+ info = &ab8500_regulator_info[i];
+ regulator_unregister(info->regulator);
+ }
+ return err;
+ }
+
+ dev_vdbg(rdev_get_dev(info->regulator),
+ "%s-probed\n", info->desc.name);
+ }
+
+ return 0;
+}
+
+static __devexit int ab8500_regulator_remove(struct platform_device *pdev)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(ab8500_regulator_info); i++) {
+ struct ab8500_regulator_info *info = NULL;
+ info = &ab8500_regulator_info[i];
+
+ dev_vdbg(rdev_get_dev(info->regulator),
+ "%s-remove\n", info->desc.name);
+
+ regulator_unregister(info->regulator);
+ }
+
+ return 0;
+}
+
+static struct platform_driver ab8500_regulator_driver = {
+ .probe = ab8500_regulator_probe,
+ .remove = __devexit_p(ab8500_regulator_remove),
+ .driver = {
+ .name = "ab8500-regulator",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init ab8500_regulator_init(void)
+{
+ int ret;
+
+ ret = platform_driver_register(&ab8500_regulator_driver);
+ if (ret != 0)
+ pr_err("Failed to register ab8500 regulator: %d\n", ret);
+
+ return ret;
+}
+subsys_initcall(ab8500_regulator_init);
+
+static void __exit ab8500_regulator_exit(void)
+{
+ platform_driver_unregister(&ab8500_regulator_driver);
+}
+module_exit(ab8500_regulator_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Sundar Iyer <sundar.iyer@stericsson.com>");
+MODULE_DESCRIPTION("Regulator Driver for ST-Ericsson AB8500 Mixed-Sig PMIC");
+MODULE_ALIAS("platform:ab8500-regulator");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/ad5398.c b/ap/os/linux/linux-3.4.x/drivers/regulator/ad5398.c
new file mode 100644
index 0000000..26d23ad
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/ad5398.c
@@ -0,0 +1,287 @@
+/*
+ * Voltage and current regulation for AD5398 and AD5821
+ *
+ * Copyright 2010 Analog Devices Inc.
+ *
+ * Enter bugs at http://blackfin.uclinux.org/
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+
+#define AD5398_CURRENT_EN_MASK 0x8000
+
+struct ad5398_chip_info {
+ struct i2c_client *client;
+ int min_uA;
+ int max_uA;
+ unsigned int current_level;
+ unsigned int current_mask;
+ unsigned int current_offset;
+ struct regulator_dev *rdev;
+};
+
+static int ad5398_calc_current(struct ad5398_chip_info *chip,
+ unsigned selector)
+{
+ unsigned range_uA = chip->max_uA - chip->min_uA;
+
+ return chip->min_uA + (selector * range_uA / chip->current_level);
+}
+
+static int ad5398_read_reg(struct i2c_client *client, unsigned short *data)
+{
+ unsigned short val;
+ int ret;
+
+ ret = i2c_master_recv(client, (char *)&val, 2);
+ if (ret < 0) {
+ dev_err(&client->dev, "I2C read error\n");
+ return ret;
+ }
+ *data = be16_to_cpu(val);
+
+ return ret;
+}
+
+static int ad5398_write_reg(struct i2c_client *client, const unsigned short data)
+{
+ unsigned short val;
+ int ret;
+
+ val = cpu_to_be16(data);
+ ret = i2c_master_send(client, (char *)&val, 2);
+ if (ret < 0)
+ dev_err(&client->dev, "I2C write error\n");
+
+ return ret;
+}
+
+static int ad5398_get_current_limit(struct regulator_dev *rdev)
+{
+ struct ad5398_chip_info *chip = rdev_get_drvdata(rdev);
+ struct i2c_client *client = chip->client;
+ unsigned short data;
+ int ret;
+
+ ret = ad5398_read_reg(client, &data);
+ if (ret < 0)
+ return ret;
+
+ ret = (data & chip->current_mask) >> chip->current_offset;
+
+ return ad5398_calc_current(chip, ret);
+}
+
+static int ad5398_set_current_limit(struct regulator_dev *rdev, int min_uA, int max_uA)
+{
+ struct ad5398_chip_info *chip = rdev_get_drvdata(rdev);
+ struct i2c_client *client = chip->client;
+ unsigned range_uA = chip->max_uA - chip->min_uA;
+ unsigned selector;
+ unsigned short data;
+ int ret;
+
+ if (min_uA > chip->max_uA || min_uA < chip->min_uA)
+ return -EINVAL;
+ if (max_uA > chip->max_uA || max_uA < chip->min_uA)
+ return -EINVAL;
+
+ selector = DIV_ROUND_UP((min_uA - chip->min_uA) * chip->current_level,
+ range_uA);
+ if (ad5398_calc_current(chip, selector) > max_uA)
+ return -EINVAL;
+
+ dev_dbg(&client->dev, "changing current %dmA\n",
+ ad5398_calc_current(chip, selector) / 1000);
+
+ /* read chip enable bit */
+ ret = ad5398_read_reg(client, &data);
+ if (ret < 0)
+ return ret;
+
+ /* prepare register data */
+ selector = (selector << chip->current_offset) & chip->current_mask;
+ data = (unsigned short)selector | (data & AD5398_CURRENT_EN_MASK);
+
+ /* write the new current value back as well as enable bit */
+ ret = ad5398_write_reg(client, data);
+
+ return ret;
+}
+
+static int ad5398_is_enabled(struct regulator_dev *rdev)
+{
+ struct ad5398_chip_info *chip = rdev_get_drvdata(rdev);
+ struct i2c_client *client = chip->client;
+ unsigned short data;
+ int ret;
+
+ ret = ad5398_read_reg(client, &data);
+ if (ret < 0)
+ return ret;
+
+ if (data & AD5398_CURRENT_EN_MASK)
+ return 1;
+ else
+ return 0;
+}
+
+static int ad5398_enable(struct regulator_dev *rdev)
+{
+ struct ad5398_chip_info *chip = rdev_get_drvdata(rdev);
+ struct i2c_client *client = chip->client;
+ unsigned short data;
+ int ret;
+
+ ret = ad5398_read_reg(client, &data);
+ if (ret < 0)
+ return ret;
+
+ if (data & AD5398_CURRENT_EN_MASK)
+ return 0;
+
+ data |= AD5398_CURRENT_EN_MASK;
+
+ ret = ad5398_write_reg(client, data);
+
+ return ret;
+}
+
+static int ad5398_disable(struct regulator_dev *rdev)
+{
+ struct ad5398_chip_info *chip = rdev_get_drvdata(rdev);
+ struct i2c_client *client = chip->client;
+ unsigned short data;
+ int ret;
+
+ ret = ad5398_read_reg(client, &data);
+ if (ret < 0)
+ return ret;
+
+ if (!(data & AD5398_CURRENT_EN_MASK))
+ return 0;
+
+ data &= ~AD5398_CURRENT_EN_MASK;
+
+ ret = ad5398_write_reg(client, data);
+
+ return ret;
+}
+
+static struct regulator_ops ad5398_ops = {
+ .get_current_limit = ad5398_get_current_limit,
+ .set_current_limit = ad5398_set_current_limit,
+ .enable = ad5398_enable,
+ .disable = ad5398_disable,
+ .is_enabled = ad5398_is_enabled,
+};
+
+static struct regulator_desc ad5398_reg = {
+ .name = "isink",
+ .id = 0,
+ .ops = &ad5398_ops,
+ .type = REGULATOR_CURRENT,
+ .owner = THIS_MODULE,
+};
+
+struct ad5398_current_data_format {
+ int current_bits;
+ int current_offset;
+ int min_uA;
+ int max_uA;
+};
+
+static const struct ad5398_current_data_format df_10_4_120 = {10, 4, 0, 120000};
+
+static const struct i2c_device_id ad5398_id[] = {
+ { "ad5398", (kernel_ulong_t)&df_10_4_120 },
+ { "ad5821", (kernel_ulong_t)&df_10_4_120 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, ad5398_id);
+
+static int __devinit ad5398_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct regulator_init_data *init_data = client->dev.platform_data;
+ struct ad5398_chip_info *chip;
+ const struct ad5398_current_data_format *df =
+ (struct ad5398_current_data_format *)id->driver_data;
+ int ret;
+
+ if (!init_data)
+ return -EINVAL;
+
+ chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+ if (!chip)
+ return -ENOMEM;
+
+ chip->client = client;
+
+ chip->min_uA = df->min_uA;
+ chip->max_uA = df->max_uA;
+ chip->current_level = 1 << df->current_bits;
+ chip->current_offset = df->current_offset;
+ chip->current_mask = (chip->current_level - 1) << chip->current_offset;
+
+ chip->rdev = regulator_register(&ad5398_reg, &client->dev,
+ init_data, chip, NULL);
+ if (IS_ERR(chip->rdev)) {
+ ret = PTR_ERR(chip->rdev);
+ dev_err(&client->dev, "failed to register %s %s\n",
+ id->name, ad5398_reg.name);
+ goto err;
+ }
+
+ i2c_set_clientdata(client, chip);
+ dev_dbg(&client->dev, "%s regulator driver is registered.\n", id->name);
+ return 0;
+
+err:
+ kfree(chip);
+ return ret;
+}
+
+static int __devexit ad5398_remove(struct i2c_client *client)
+{
+ struct ad5398_chip_info *chip = i2c_get_clientdata(client);
+
+ regulator_unregister(chip->rdev);
+ kfree(chip);
+
+ return 0;
+}
+
+static struct i2c_driver ad5398_driver = {
+ .probe = ad5398_probe,
+ .remove = __devexit_p(ad5398_remove),
+ .driver = {
+ .name = "ad5398",
+ },
+ .id_table = ad5398_id,
+};
+
+static int __init ad5398_init(void)
+{
+ return i2c_add_driver(&ad5398_driver);
+}
+subsys_initcall(ad5398_init);
+
+static void __exit ad5398_exit(void)
+{
+ i2c_del_driver(&ad5398_driver);
+}
+module_exit(ad5398_exit);
+
+MODULE_DESCRIPTION("AD5398 and AD5821 current regulator driver");
+MODULE_AUTHOR("Sonic Zhang");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("i2c:ad5398-regulator");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/anatop-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/anatop-regulator.c
new file mode 100644
index 0000000..81fd606
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/anatop-regulator.c
@@ -0,0 +1,242 @@
+/*
+ * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/slab.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/mfd/anatop.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/of_regulator.h>
+
+struct anatop_regulator {
+ const char *name;
+ u32 control_reg;
+ struct anatop *mfd;
+ int vol_bit_shift;
+ int vol_bit_width;
+ int min_bit_val;
+ int min_voltage;
+ int max_voltage;
+ struct regulator_desc rdesc;
+ struct regulator_init_data *initdata;
+};
+
+static int anatop_set_voltage(struct regulator_dev *reg, int min_uV,
+ int max_uV, unsigned *selector)
+{
+ struct anatop_regulator *anatop_reg = rdev_get_drvdata(reg);
+ u32 val, sel;
+ int uv;
+
+ uv = min_uV;
+ dev_dbg(®->dev, "%s: uv %d, min %d, max %d\n", __func__,
+ uv, anatop_reg->min_voltage,
+ anatop_reg->max_voltage);
+
+ if (uv < anatop_reg->min_voltage) {
+ if (max_uV > anatop_reg->min_voltage)
+ uv = anatop_reg->min_voltage;
+ else
+ return -EINVAL;
+ }
+
+ if (!anatop_reg->control_reg)
+ return -ENOTSUPP;
+
+ sel = DIV_ROUND_UP(uv - anatop_reg->min_voltage, 25000);
+ if (sel * 25000 + anatop_reg->min_voltage > anatop_reg->max_voltage)
+ return -EINVAL;
+ val = anatop_reg->min_bit_val + sel;
+ *selector = sel;
+ dev_dbg(®->dev, "%s: calculated val %d\n", __func__, val);
+ anatop_set_bits(anatop_reg->mfd,
+ anatop_reg->control_reg,
+ anatop_reg->vol_bit_shift,
+ anatop_reg->vol_bit_width,
+ val);
+
+ return 0;
+}
+
+static int anatop_get_voltage_sel(struct regulator_dev *reg)
+{
+ struct anatop_regulator *anatop_reg = rdev_get_drvdata(reg);
+ u32 val;
+
+ if (!anatop_reg->control_reg)
+ return -ENOTSUPP;
+
+ val = anatop_get_bits(anatop_reg->mfd,
+ anatop_reg->control_reg,
+ anatop_reg->vol_bit_shift,
+ anatop_reg->vol_bit_width);
+
+ return val - anatop_reg->min_bit_val;
+}
+
+static int anatop_list_voltage(struct regulator_dev *reg, unsigned selector)
+{
+ struct anatop_regulator *anatop_reg = rdev_get_drvdata(reg);
+ int uv;
+
+ uv = anatop_reg->min_voltage + selector * 25000;
+ dev_dbg(®->dev, "vddio = %d, selector = %u\n", uv, selector);
+
+ return uv;
+}
+
+static struct regulator_ops anatop_rops = {
+ .set_voltage = anatop_set_voltage,
+ .get_voltage_sel = anatop_get_voltage_sel,
+ .list_voltage = anatop_list_voltage,
+};
+
+static int __devinit anatop_regulator_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct regulator_desc *rdesc;
+ struct regulator_dev *rdev;
+ struct anatop_regulator *sreg;
+ struct regulator_init_data *initdata;
+ struct anatop *anatopmfd = dev_get_drvdata(pdev->dev.parent);
+ int ret = 0;
+
+ initdata = of_get_regulator_init_data(dev, np);
+ sreg = devm_kzalloc(dev, sizeof(*sreg), GFP_KERNEL);
+ if (!sreg)
+ return -ENOMEM;
+ sreg->initdata = initdata;
+ sreg->name = kstrdup(of_get_property(np, "regulator-name", NULL),
+ GFP_KERNEL);
+ rdesc = &sreg->rdesc;
+ memset(rdesc, 0, sizeof(*rdesc));
+ rdesc->name = sreg->name;
+ rdesc->ops = &anatop_rops;
+ rdesc->type = REGULATOR_VOLTAGE;
+ rdesc->owner = THIS_MODULE;
+ sreg->mfd = anatopmfd;
+ ret = of_property_read_u32(np, "anatop-reg-offset",
+ &sreg->control_reg);
+ if (ret) {
+ dev_err(dev, "no anatop-reg-offset property set\n");
+ goto anatop_probe_end;
+ }
+ ret = of_property_read_u32(np, "anatop-vol-bit-width",
+ &sreg->vol_bit_width);
+ if (ret) {
+ dev_err(dev, "no anatop-vol-bit-width property set\n");
+ goto anatop_probe_end;
+ }
+ ret = of_property_read_u32(np, "anatop-vol-bit-shift",
+ &sreg->vol_bit_shift);
+ if (ret) {
+ dev_err(dev, "no anatop-vol-bit-shift property set\n");
+ goto anatop_probe_end;
+ }
+ ret = of_property_read_u32(np, "anatop-min-bit-val",
+ &sreg->min_bit_val);
+ if (ret) {
+ dev_err(dev, "no anatop-min-bit-val property set\n");
+ goto anatop_probe_end;
+ }
+ ret = of_property_read_u32(np, "anatop-min-voltage",
+ &sreg->min_voltage);
+ if (ret) {
+ dev_err(dev, "no anatop-min-voltage property set\n");
+ goto anatop_probe_end;
+ }
+ ret = of_property_read_u32(np, "anatop-max-voltage",
+ &sreg->max_voltage);
+ if (ret) {
+ dev_err(dev, "no anatop-max-voltage property set\n");
+ goto anatop_probe_end;
+ }
+
+ rdesc->n_voltages = (sreg->max_voltage - sreg->min_voltage)
+ / 25000 + 1;
+
+ /* register regulator */
+ rdev = regulator_register(rdesc, dev,
+ initdata, sreg, pdev->dev.of_node);
+ if (IS_ERR(rdev)) {
+ dev_err(dev, "failed to register %s\n",
+ rdesc->name);
+ ret = PTR_ERR(rdev);
+ goto anatop_probe_end;
+ }
+
+ platform_set_drvdata(pdev, rdev);
+
+anatop_probe_end:
+ if (ret)
+ kfree(sreg->name);
+
+ return ret;
+}
+
+static int __devexit anatop_regulator_remove(struct platform_device *pdev)
+{
+ struct regulator_dev *rdev = platform_get_drvdata(pdev);
+ struct anatop_regulator *sreg = rdev_get_drvdata(rdev);
+ const char *name = sreg->name;
+
+ regulator_unregister(rdev);
+ kfree(name);
+
+ return 0;
+}
+
+static struct of_device_id __devinitdata of_anatop_regulator_match_tbl[] = {
+ { .compatible = "fsl,anatop-regulator", },
+ { /* end */ }
+};
+
+static struct platform_driver anatop_regulator_driver = {
+ .driver = {
+ .name = "anatop_regulator",
+ .owner = THIS_MODULE,
+ .of_match_table = of_anatop_regulator_match_tbl,
+ },
+ .probe = anatop_regulator_probe,
+ .remove = anatop_regulator_remove,
+};
+
+static int __init anatop_regulator_init(void)
+{
+ return platform_driver_register(&anatop_regulator_driver);
+}
+postcore_initcall(anatop_regulator_init);
+
+static void __exit anatop_regulator_exit(void)
+{
+ platform_driver_unregister(&anatop_regulator_driver);
+}
+module_exit(anatop_regulator_exit);
+
+MODULE_AUTHOR("Nancy Chen <Nancy.Chen@freescale.com>, "
+ "Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>");
+MODULE_DESCRIPTION("ANATOP Regulator driver");
+MODULE_LICENSE("GPL v2");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/core.c b/ap/os/linux/linux-3.4.x/drivers/regulator/core.c
new file mode 100644
index 0000000..c8f160d
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/core.c
@@ -0,0 +1,3302 @@
+/*
+ * core.c -- Voltage/Current Regulator framework.
+ *
+ * Copyright 2007, 2008 Wolfson Microelectronics PLC.
+ * Copyright 2008 SlimLogic Ltd.
+ *
+ * Author: Liam Girdwood <lrg@slimlogic.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/debugfs.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/async.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/suspend.h>
+#include <linux/delay.h>
+#include <linux/of.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/regulator/consumer.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/module.h>
+
+#define CREATE_TRACE_POINTS
+#include <trace/events/regulator.h>
+
+#include "dummy.h"
+
+#define rdev_crit(rdev, fmt, ...) \
+ pr_crit("%s: " fmt, rdev_get_name(rdev), ##__VA_ARGS__)
+#define rdev_err(rdev, fmt, ...) \
+ pr_err("%s: " fmt, rdev_get_name(rdev), ##__VA_ARGS__)
+#define rdev_warn(rdev, fmt, ...) \
+ pr_warn("%s: " fmt, rdev_get_name(rdev), ##__VA_ARGS__)
+#define rdev_info(rdev, fmt, ...) \
+ pr_info("%s: " fmt, rdev_get_name(rdev), ##__VA_ARGS__)
+#define rdev_dbg(rdev, fmt, ...) \
+ pr_debug("%s: " fmt, rdev_get_name(rdev), ##__VA_ARGS__)
+
+static DEFINE_MUTEX(regulator_list_mutex);
+static LIST_HEAD(regulator_list);
+static LIST_HEAD(regulator_map_list);
+static bool has_full_constraints;
+static bool board_wants_dummy_regulator;
+
+static struct dentry *debugfs_root;
+
+/*
+ * struct regulator_map
+ *
+ * Used to provide symbolic supply names to devices.
+ */
+struct regulator_map {
+ struct list_head list;
+ const char *dev_name; /* The dev_name() for the consumer */
+ const char *supply;
+ struct regulator_dev *regulator;
+};
+
+/*
+ * struct regulator
+ *
+ * One for each consumer device.
+ */
+struct regulator {
+ struct device *dev;
+ struct list_head list;
+ int uA_load;
+ int min_uV;
+ int max_uV;
+ char *supply_name;
+ struct device_attribute dev_attr;
+ struct regulator_dev *rdev;
+ struct dentry *debugfs;
+};
+
+static int _regulator_is_enabled(struct regulator_dev *rdev);
+static int _regulator_disable(struct regulator_dev *rdev);
+static int _regulator_get_voltage(struct regulator_dev *rdev);
+static int _regulator_get_current_limit(struct regulator_dev *rdev);
+static unsigned int _regulator_get_mode(struct regulator_dev *rdev);
+static void _notifier_call_chain(struct regulator_dev *rdev,
+ unsigned long event, void *data);
+static int _regulator_do_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV);
+static struct regulator *create_regulator(struct regulator_dev *rdev,
+ struct device *dev,
+ const char *supply_name);
+
+static const char *rdev_get_name(struct regulator_dev *rdev)
+{
+ if (rdev->constraints && rdev->constraints->name)
+ return rdev->constraints->name;
+ else if (rdev->desc->name)
+ return rdev->desc->name;
+ else
+ return "";
+}
+
+/* gets the regulator for a given consumer device */
+static struct regulator *get_device_regulator(struct device *dev)
+{
+ struct regulator *regulator = NULL;
+ struct regulator_dev *rdev;
+
+ mutex_lock(®ulator_list_mutex);
+ list_for_each_entry(rdev, ®ulator_list, list) {
+ mutex_lock(&rdev->mutex);
+ list_for_each_entry(regulator, &rdev->consumer_list, list) {
+ if (regulator->dev == dev) {
+ mutex_unlock(&rdev->mutex);
+ mutex_unlock(®ulator_list_mutex);
+ return regulator;
+ }
+ }
+ mutex_unlock(&rdev->mutex);
+ }
+ mutex_unlock(®ulator_list_mutex);
+ return NULL;
+}
+
+/**
+ * of_get_regulator - get a regulator device node based on supply name
+ * @dev: Device pointer for the consumer (of regulator) device
+ * @supply: regulator supply name
+ *
+ * Extract the regulator device node corresponding to the supply name.
+ * retruns the device node corresponding to the regulator if found, else
+ * returns NULL.
+ */
+static struct device_node *of_get_regulator(struct device *dev, const char *supply)
+{
+ struct device_node *regnode = NULL;
+ char prop_name[32]; /* 32 is max size of property name */
+
+ dev_dbg(dev, "Looking up %s-supply from device tree\n", supply);
+
+ snprintf(prop_name, 32, "%s-supply", supply);
+ regnode = of_parse_phandle(dev->of_node, prop_name, 0);
+
+ if (!regnode) {
+ dev_dbg(dev, "Looking up %s property in node %s failed",
+ prop_name, dev->of_node->full_name);
+ return NULL;
+ }
+ return regnode;
+}
+
+/* Platform voltage constraint check */
+static int regulator_check_voltage(struct regulator_dev *rdev,
+ int *min_uV, int *max_uV)
+{
+ BUG_ON(*min_uV > *max_uV);
+
+ if (!rdev->constraints) {
+ rdev_err(rdev, "no constraints\n");
+ return -ENODEV;
+ }
+ if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE)) {
+ rdev_err(rdev, "operation not allowed\n");
+ return -EPERM;
+ }
+
+ if (*max_uV > rdev->constraints->max_uV)
+ *max_uV = rdev->constraints->max_uV;
+ if (*min_uV < rdev->constraints->min_uV)
+ *min_uV = rdev->constraints->min_uV;
+
+ if (*min_uV > *max_uV) {
+ rdev_err(rdev, "unsupportable voltage range: %d-%duV\n",
+ *min_uV, *max_uV);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* Make sure we select a voltage that suits the needs of all
+ * regulator consumers
+ */
+static int regulator_check_consumers(struct regulator_dev *rdev,
+ int *min_uV, int *max_uV)
+{
+ struct regulator *regulator;
+
+ list_for_each_entry(regulator, &rdev->consumer_list, list) {
+ /*
+ * Assume consumers that didn't say anything are OK
+ * with anything in the constraint range.
+ */
+ if (!regulator->min_uV && !regulator->max_uV)
+ continue;
+
+ if (*max_uV > regulator->max_uV)
+ *max_uV = regulator->max_uV;
+ if (*min_uV < regulator->min_uV)
+ *min_uV = regulator->min_uV;
+ }
+
+ if (*min_uV > *max_uV)
+ return -EINVAL;
+
+ return 0;
+}
+
+/* current constraint check */
+static int regulator_check_current_limit(struct regulator_dev *rdev,
+ int *min_uA, int *max_uA)
+{
+ BUG_ON(*min_uA > *max_uA);
+
+ if (!rdev->constraints) {
+ rdev_err(rdev, "no constraints\n");
+ return -ENODEV;
+ }
+ if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_CURRENT)) {
+ rdev_err(rdev, "operation not allowed\n");
+ return -EPERM;
+ }
+
+ if (*max_uA > rdev->constraints->max_uA)
+ *max_uA = rdev->constraints->max_uA;
+ if (*min_uA < rdev->constraints->min_uA)
+ *min_uA = rdev->constraints->min_uA;
+
+ if (*min_uA > *max_uA) {
+ rdev_err(rdev, "unsupportable current range: %d-%duA\n",
+ *min_uA, *max_uA);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* operating mode constraint check */
+static int regulator_mode_constrain(struct regulator_dev *rdev, int *mode)
+{
+ switch (*mode) {
+ case REGULATOR_MODE_FAST:
+ case REGULATOR_MODE_NORMAL:
+ case REGULATOR_MODE_IDLE:
+ case REGULATOR_MODE_STANDBY:
+ break;
+ default:
+ rdev_err(rdev, "invalid mode %x specified\n", *mode);
+ return -EINVAL;
+ }
+
+ if (!rdev->constraints) {
+ rdev_err(rdev, "no constraints\n");
+ return -ENODEV;
+ }
+ if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_MODE)) {
+ rdev_err(rdev, "operation not allowed\n");
+ return -EPERM;
+ }
+
+ /* The modes are bitmasks, the most power hungry modes having
+ * the lowest values. If the requested mode isn't supported
+ * try higher modes. */
+ while (*mode) {
+ if (rdev->constraints->valid_modes_mask & *mode)
+ return 0;
+ *mode /= 2;
+ }
+
+ return -EINVAL;
+}
+
+/* dynamic regulator mode switching constraint check */
+static int regulator_check_drms(struct regulator_dev *rdev)
+{
+ if (!rdev->constraints) {
+ rdev_err(rdev, "no constraints\n");
+ return -ENODEV;
+ }
+ if (!(rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_DRMS)) {
+ rdev_err(rdev, "operation not allowed\n");
+ return -EPERM;
+ }
+ return 0;
+}
+
+static ssize_t device_requested_uA_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator *regulator;
+
+ regulator = get_device_regulator(dev);
+ if (regulator == NULL)
+ return 0;
+
+ return sprintf(buf, "%d\n", regulator->uA_load);
+}
+
+static ssize_t regulator_uV_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+ ssize_t ret;
+
+ mutex_lock(&rdev->mutex);
+ ret = sprintf(buf, "%d\n", _regulator_get_voltage(rdev));
+ mutex_unlock(&rdev->mutex);
+
+ return ret;
+}
+static DEVICE_ATTR(microvolts, 0444, regulator_uV_show, NULL);
+
+static ssize_t regulator_uA_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%d\n", _regulator_get_current_limit(rdev));
+}
+static DEVICE_ATTR(microamps, 0444, regulator_uA_show, NULL);
+
+static ssize_t regulator_name_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%s\n", rdev_get_name(rdev));
+}
+
+static ssize_t regulator_print_opmode(char *buf, int mode)
+{
+ switch (mode) {
+ case REGULATOR_MODE_FAST:
+ return sprintf(buf, "fast\n");
+ case REGULATOR_MODE_NORMAL:
+ return sprintf(buf, "normal\n");
+ case REGULATOR_MODE_IDLE:
+ return sprintf(buf, "idle\n");
+ case REGULATOR_MODE_STANDBY:
+ return sprintf(buf, "standby\n");
+ }
+ return sprintf(buf, "unknown\n");
+}
+
+static ssize_t regulator_opmode_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+
+ return regulator_print_opmode(buf, _regulator_get_mode(rdev));
+}
+static DEVICE_ATTR(opmode, 0444, regulator_opmode_show, NULL);
+
+static ssize_t regulator_print_state(char *buf, int state)
+{
+ if (state > 0)
+ return sprintf(buf, "enabled\n");
+ else if (state == 0)
+ return sprintf(buf, "disabled\n");
+ else
+ return sprintf(buf, "unknown\n");
+}
+
+static ssize_t regulator_state_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+ ssize_t ret;
+
+ mutex_lock(&rdev->mutex);
+ ret = regulator_print_state(buf, _regulator_is_enabled(rdev));
+ mutex_unlock(&rdev->mutex);
+
+ return ret;
+}
+static DEVICE_ATTR(state, 0444, regulator_state_show, NULL);
+
+static ssize_t regulator_status_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+ int status;
+ char *label;
+
+ status = rdev->desc->ops->get_status(rdev);
+ if (status < 0)
+ return status;
+
+ switch (status) {
+ case REGULATOR_STATUS_OFF:
+ label = "off";
+ break;
+ case REGULATOR_STATUS_ON:
+ label = "on";
+ break;
+ case REGULATOR_STATUS_ERROR:
+ label = "error";
+ break;
+ case REGULATOR_STATUS_FAST:
+ label = "fast";
+ break;
+ case REGULATOR_STATUS_NORMAL:
+ label = "normal";
+ break;
+ case REGULATOR_STATUS_IDLE:
+ label = "idle";
+ break;
+ case REGULATOR_STATUS_STANDBY:
+ label = "standby";
+ break;
+ default:
+ return -ERANGE;
+ }
+
+ return sprintf(buf, "%s\n", label);
+}
+static DEVICE_ATTR(status, 0444, regulator_status_show, NULL);
+
+static ssize_t regulator_min_uA_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+
+ if (!rdev->constraints)
+ return sprintf(buf, "constraint not defined\n");
+
+ return sprintf(buf, "%d\n", rdev->constraints->min_uA);
+}
+static DEVICE_ATTR(min_microamps, 0444, regulator_min_uA_show, NULL);
+
+static ssize_t regulator_max_uA_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+
+ if (!rdev->constraints)
+ return sprintf(buf, "constraint not defined\n");
+
+ return sprintf(buf, "%d\n", rdev->constraints->max_uA);
+}
+static DEVICE_ATTR(max_microamps, 0444, regulator_max_uA_show, NULL);
+
+static ssize_t regulator_min_uV_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+
+ if (!rdev->constraints)
+ return sprintf(buf, "constraint not defined\n");
+
+ return sprintf(buf, "%d\n", rdev->constraints->min_uV);
+}
+static DEVICE_ATTR(min_microvolts, 0444, regulator_min_uV_show, NULL);
+
+static ssize_t regulator_max_uV_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+
+ if (!rdev->constraints)
+ return sprintf(buf, "constraint not defined\n");
+
+ return sprintf(buf, "%d\n", rdev->constraints->max_uV);
+}
+static DEVICE_ATTR(max_microvolts, 0444, regulator_max_uV_show, NULL);
+
+static ssize_t regulator_total_uA_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+ struct regulator *regulator;
+ int uA = 0;
+
+ mutex_lock(&rdev->mutex);
+ list_for_each_entry(regulator, &rdev->consumer_list, list)
+ uA += regulator->uA_load;
+ mutex_unlock(&rdev->mutex);
+ return sprintf(buf, "%d\n", uA);
+}
+static DEVICE_ATTR(requested_microamps, 0444, regulator_total_uA_show, NULL);
+
+static ssize_t regulator_num_users_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+ return sprintf(buf, "%d\n", rdev->use_count);
+}
+
+static ssize_t regulator_type_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+
+ switch (rdev->desc->type) {
+ case REGULATOR_VOLTAGE:
+ return sprintf(buf, "voltage\n");
+ case REGULATOR_CURRENT:
+ return sprintf(buf, "current\n");
+ }
+ return sprintf(buf, "unknown\n");
+}
+
+static ssize_t regulator_suspend_mem_uV_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%d\n", rdev->constraints->state_mem.uV);
+}
+static DEVICE_ATTR(suspend_mem_microvolts, 0444,
+ regulator_suspend_mem_uV_show, NULL);
+
+static ssize_t regulator_suspend_disk_uV_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%d\n", rdev->constraints->state_disk.uV);
+}
+static DEVICE_ATTR(suspend_disk_microvolts, 0444,
+ regulator_suspend_disk_uV_show, NULL);
+
+static ssize_t regulator_suspend_standby_uV_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%d\n", rdev->constraints->state_standby.uV);
+}
+static DEVICE_ATTR(suspend_standby_microvolts, 0444,
+ regulator_suspend_standby_uV_show, NULL);
+
+static ssize_t regulator_suspend_mem_mode_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+
+ return regulator_print_opmode(buf,
+ rdev->constraints->state_mem.mode);
+}
+static DEVICE_ATTR(suspend_mem_mode, 0444,
+ regulator_suspend_mem_mode_show, NULL);
+
+static ssize_t regulator_suspend_disk_mode_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+
+ return regulator_print_opmode(buf,
+ rdev->constraints->state_disk.mode);
+}
+static DEVICE_ATTR(suspend_disk_mode, 0444,
+ regulator_suspend_disk_mode_show, NULL);
+
+static ssize_t regulator_suspend_standby_mode_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+
+ return regulator_print_opmode(buf,
+ rdev->constraints->state_standby.mode);
+}
+static DEVICE_ATTR(suspend_standby_mode, 0444,
+ regulator_suspend_standby_mode_show, NULL);
+
+static ssize_t regulator_suspend_mem_state_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+
+ return regulator_print_state(buf,
+ rdev->constraints->state_mem.enabled);
+}
+static DEVICE_ATTR(suspend_mem_state, 0444,
+ regulator_suspend_mem_state_show, NULL);
+
+static ssize_t regulator_suspend_disk_state_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+
+ return regulator_print_state(buf,
+ rdev->constraints->state_disk.enabled);
+}
+static DEVICE_ATTR(suspend_disk_state, 0444,
+ regulator_suspend_disk_state_show, NULL);
+
+static ssize_t regulator_suspend_standby_state_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+
+ return regulator_print_state(buf,
+ rdev->constraints->state_standby.enabled);
+}
+static DEVICE_ATTR(suspend_standby_state, 0444,
+ regulator_suspend_standby_state_show, NULL);
+
+
+/*
+ * These are the only attributes are present for all regulators.
+ * Other attributes are a function of regulator functionality.
+ */
+static struct device_attribute regulator_dev_attrs[] = {
+ __ATTR(name, 0444, regulator_name_show, NULL),
+ __ATTR(num_users, 0444, regulator_num_users_show, NULL),
+ __ATTR(type, 0444, regulator_type_show, NULL),
+ __ATTR_NULL,
+};
+
+static void regulator_dev_release(struct device *dev)
+{
+ struct regulator_dev *rdev = dev_get_drvdata(dev);
+ kfree(rdev);
+}
+
+static struct class regulator_class = {
+ .name = "regulator",
+ .dev_release = regulator_dev_release,
+ .dev_attrs = regulator_dev_attrs,
+};
+
+/* Calculate the new optimum regulator operating mode based on the new total
+ * consumer load. All locks held by caller */
+static void drms_uA_update(struct regulator_dev *rdev)
+{
+ struct regulator *sibling;
+ int current_uA = 0, output_uV, input_uV, err;
+ unsigned int mode;
+
+ err = regulator_check_drms(rdev);
+ if (err < 0 || !rdev->desc->ops->get_optimum_mode ||
+ (!rdev->desc->ops->get_voltage &&
+ !rdev->desc->ops->get_voltage_sel) ||
+ !rdev->desc->ops->set_mode)
+ return;
+
+ /* get output voltage */
+ output_uV = _regulator_get_voltage(rdev);
+ if (output_uV <= 0)
+ return;
+
+ /* get input voltage */
+ input_uV = 0;
+ if (rdev->supply)
+ input_uV = _regulator_get_voltage(rdev);
+ if (input_uV <= 0)
+ input_uV = rdev->constraints->input_uV;
+ if (input_uV <= 0)
+ return;
+
+ /* calc total requested load */
+ list_for_each_entry(sibling, &rdev->consumer_list, list)
+ current_uA += sibling->uA_load;
+
+ /* now get the optimum mode for our new total regulator load */
+ mode = rdev->desc->ops->get_optimum_mode(rdev, input_uV,
+ output_uV, current_uA);
+
+ /* check the new mode is allowed */
+ err = regulator_mode_constrain(rdev, &mode);
+ if (err == 0)
+ rdev->desc->ops->set_mode(rdev, mode);
+}
+
+static int suspend_set_state(struct regulator_dev *rdev,
+ struct regulator_state *rstate)
+{
+ int ret = 0;
+ bool can_set_state;
+
+ can_set_state = rdev->desc->ops->set_suspend_enable &&
+ rdev->desc->ops->set_suspend_disable;
+
+ /* If we have no suspend mode configration don't set anything;
+ * only warn if the driver actually makes the suspend mode
+ * configurable.
+ */
+ if (!rstate->enabled && !rstate->disabled) {
+ if (can_set_state)
+ rdev_warn(rdev, "No configuration\n");
+ return 0;
+ }
+
+ if (rstate->enabled && rstate->disabled) {
+ rdev_err(rdev, "invalid configuration\n");
+ return -EINVAL;
+ }
+
+ if (!can_set_state) {
+ rdev_err(rdev, "no way to set suspend state\n");
+ return -EINVAL;
+ }
+
+ if (rstate->enabled)
+ ret = rdev->desc->ops->set_suspend_enable(rdev);
+ else
+ ret = rdev->desc->ops->set_suspend_disable(rdev);
+ if (ret < 0) {
+ rdev_err(rdev, "failed to enabled/disable\n");
+ return ret;
+ }
+
+ if (rdev->desc->ops->set_suspend_voltage && rstate->uV > 0) {
+ ret = rdev->desc->ops->set_suspend_voltage(rdev, rstate->uV);
+ if (ret < 0) {
+ rdev_err(rdev, "failed to set voltage\n");
+ return ret;
+ }
+ }
+
+ if (rdev->desc->ops->set_suspend_mode && rstate->mode > 0) {
+ ret = rdev->desc->ops->set_suspend_mode(rdev, rstate->mode);
+ if (ret < 0) {
+ rdev_err(rdev, "failed to set mode\n");
+ return ret;
+ }
+ }
+ return ret;
+}
+
+/* locks held by caller */
+static int suspend_prepare(struct regulator_dev *rdev, suspend_state_t state)
+{
+ if (!rdev->constraints)
+ return -EINVAL;
+
+ switch (state) {
+ case PM_SUSPEND_STANDBY:
+ return suspend_set_state(rdev,
+ &rdev->constraints->state_standby);
+ case PM_SUSPEND_MEM:
+ return suspend_set_state(rdev,
+ &rdev->constraints->state_mem);
+ case PM_SUSPEND_MAX:
+ return suspend_set_state(rdev,
+ &rdev->constraints->state_disk);
+ default:
+ return -EINVAL;
+ }
+}
+
+static void print_constraints(struct regulator_dev *rdev)
+{
+ struct regulation_constraints *constraints = rdev->constraints;
+ char buf[160] = "";
+ int count = 0;
+ int ret;
+
+ if (constraints->min_uV && constraints->max_uV) {
+ if (constraints->min_uV == constraints->max_uV)
+ count += sprintf(buf + count, "%d mV ",
+ constraints->min_uV / 1000);
+ else
+ count += sprintf(buf + count, "%d <--> %d mV ",
+ constraints->min_uV / 1000,
+ constraints->max_uV / 1000);
+ }
+
+ if (!constraints->min_uV ||
+ constraints->min_uV != constraints->max_uV) {
+ ret = _regulator_get_voltage(rdev);
+ if (ret > 0)
+ count += sprintf(buf + count, "at %d mV ", ret / 1000);
+ }
+
+ if (constraints->uV_offset)
+ count += sprintf(buf, "%dmV offset ",
+ constraints->uV_offset / 1000);
+
+ if (constraints->min_uA && constraints->max_uA) {
+ if (constraints->min_uA == constraints->max_uA)
+ count += sprintf(buf + count, "%d mA ",
+ constraints->min_uA / 1000);
+ else
+ count += sprintf(buf + count, "%d <--> %d mA ",
+ constraints->min_uA / 1000,
+ constraints->max_uA / 1000);
+ }
+
+ if (!constraints->min_uA ||
+ constraints->min_uA != constraints->max_uA) {
+ ret = _regulator_get_current_limit(rdev);
+ if (ret > 0)
+ count += sprintf(buf + count, "at %d mA ", ret / 1000);
+ }
+
+ if (constraints->valid_modes_mask & REGULATOR_MODE_FAST)
+ count += sprintf(buf + count, "fast ");
+ if (constraints->valid_modes_mask & REGULATOR_MODE_NORMAL)
+ count += sprintf(buf + count, "normal ");
+ if (constraints->valid_modes_mask & REGULATOR_MODE_IDLE)
+ count += sprintf(buf + count, "idle ");
+ if (constraints->valid_modes_mask & REGULATOR_MODE_STANDBY)
+ count += sprintf(buf + count, "standby");
+
+ rdev_info(rdev, "%s\n", buf);
+
+ if ((constraints->min_uV != constraints->max_uV) &&
+ !(constraints->valid_ops_mask & REGULATOR_CHANGE_VOLTAGE))
+ rdev_warn(rdev,
+ "Voltage range but no REGULATOR_CHANGE_VOLTAGE\n");
+}
+
+static int machine_constraints_voltage(struct regulator_dev *rdev,
+ struct regulation_constraints *constraints)
+{
+ struct regulator_ops *ops = rdev->desc->ops;
+ int ret;
+
+ /* do we need to apply the constraint voltage */
+ if (rdev->constraints->apply_uV &&
+ rdev->constraints->min_uV == rdev->constraints->max_uV) {
+ ret = _regulator_do_set_voltage(rdev,
+ rdev->constraints->min_uV,
+ rdev->constraints->max_uV);
+ if (ret < 0) {
+ rdev_err(rdev, "failed to apply %duV constraint\n",
+ rdev->constraints->min_uV);
+ return ret;
+ }
+ }
+
+ /* constrain machine-level voltage specs to fit
+ * the actual range supported by this regulator.
+ */
+ if (ops->list_voltage && rdev->desc->n_voltages) {
+ int count = rdev->desc->n_voltages;
+ int i;
+ int min_uV = INT_MAX;
+ int max_uV = INT_MIN;
+ int cmin = constraints->min_uV;
+ int cmax = constraints->max_uV;
+
+ /* it's safe to autoconfigure fixed-voltage supplies
+ and the constraints are used by list_voltage. */
+ if (count == 1 && !cmin) {
+ cmin = 1;
+ cmax = INT_MAX;
+ constraints->min_uV = cmin;
+ constraints->max_uV = cmax;
+ }
+
+ /* voltage constraints are optional */
+ if ((cmin == 0) && (cmax == 0))
+ return 0;
+
+ /* else require explicit machine-level constraints */
+ if (cmin <= 0 || cmax <= 0 || cmax < cmin) {
+ rdev_err(rdev, "invalid voltage constraints\n");
+ return -EINVAL;
+ }
+
+ /* initial: [cmin..cmax] valid, [min_uV..max_uV] not */
+ for (i = 0; i < count; i++) {
+ int value;
+
+ value = ops->list_voltage(rdev, i);
+ if (value <= 0)
+ continue;
+
+ /* maybe adjust [min_uV..max_uV] */
+ if (value >= cmin && value < min_uV)
+ min_uV = value;
+ if (value <= cmax && value > max_uV)
+ max_uV = value;
+ }
+
+ /* final: [min_uV..max_uV] valid iff constraints valid */
+ if (max_uV < min_uV) {
+ rdev_err(rdev, "unsupportable voltage constraints\n");
+ return -EINVAL;
+ }
+
+ /* use regulator's subset of machine constraints */
+ if (constraints->min_uV < min_uV) {
+ rdev_dbg(rdev, "override min_uV, %d -> %d\n",
+ constraints->min_uV, min_uV);
+ constraints->min_uV = min_uV;
+ }
+ if (constraints->max_uV > max_uV) {
+ rdev_dbg(rdev, "override max_uV, %d -> %d\n",
+ constraints->max_uV, max_uV);
+ constraints->max_uV = max_uV;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * set_machine_constraints - sets regulator constraints
+ * @rdev: regulator source
+ * @constraints: constraints to apply
+ *
+ * Allows platform initialisation code to define and constrain
+ * regulator circuits e.g. valid voltage/current ranges, etc. NOTE:
+ * Constraints *must* be set by platform code in order for some
+ * regulator operations to proceed i.e. set_voltage, set_current_limit,
+ * set_mode.
+ */
+static int set_machine_constraints(struct regulator_dev *rdev,
+ const struct regulation_constraints *constraints)
+{
+ int ret = 0;
+ struct regulator_ops *ops = rdev->desc->ops;
+
+ if (constraints)
+ rdev->constraints = kmemdup(constraints, sizeof(*constraints),
+ GFP_KERNEL);
+ else
+ rdev->constraints = kzalloc(sizeof(*constraints),
+ GFP_KERNEL);
+ if (!rdev->constraints)
+ return -ENOMEM;
+
+ ret = machine_constraints_voltage(rdev, rdev->constraints);
+ if (ret != 0)
+ goto out;
+
+ /* do we need to setup our suspend state */
+ if (rdev->constraints->initial_state) {
+ ret = suspend_prepare(rdev, rdev->constraints->initial_state);
+ if (ret < 0) {
+ rdev_err(rdev, "failed to set suspend state\n");
+ goto out;
+ }
+ }
+
+ if (rdev->constraints->initial_mode) {
+ if (!ops->set_mode) {
+ rdev_err(rdev, "no set_mode operation\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ ret = ops->set_mode(rdev, rdev->constraints->initial_mode);
+ if (ret < 0) {
+ rdev_err(rdev, "failed to set initial mode: %d\n", ret);
+ goto out;
+ }
+ }
+
+ /* If the constraints say the regulator should be on at this point
+ * and we have control then make sure it is enabled.
+ */
+ if ((rdev->constraints->always_on || rdev->constraints->boot_on) &&
+ ops->enable) {
+ ret = ops->enable(rdev);
+ if (ret < 0) {
+ rdev_err(rdev, "failed to enable\n");
+ goto out;
+ }
+ }
+
+ print_constraints(rdev);
+ return 0;
+out:
+ kfree(rdev->constraints);
+ rdev->constraints = NULL;
+ return ret;
+}
+
+/**
+ * set_supply - set regulator supply regulator
+ * @rdev: regulator name
+ * @supply_rdev: supply regulator name
+ *
+ * Called by platform initialisation code to set the supply regulator for this
+ * regulator. This ensures that a regulators supply will also be enabled by the
+ * core if it's child is enabled.
+ */
+static int set_supply(struct regulator_dev *rdev,
+ struct regulator_dev *supply_rdev)
+{
+ int err;
+
+ rdev_info(rdev, "supplied by %s\n", rdev_get_name(supply_rdev));
+
+ rdev->supply = create_regulator(supply_rdev, &rdev->dev, "SUPPLY");
+ if (rdev->supply == NULL) {
+ err = -ENOMEM;
+ return err;
+ }
+
+ return 0;
+}
+
+/**
+ * set_consumer_device_supply - Bind a regulator to a symbolic supply
+ * @rdev: regulator source
+ * @consumer_dev_name: dev_name() string for device supply applies to
+ * @supply: symbolic name for supply
+ *
+ * Allows platform initialisation code to map physical regulator
+ * sources to symbolic names for supplies for use by devices. Devices
+ * should use these symbolic names to request regulators, avoiding the
+ * need to provide board-specific regulator names as platform data.
+ */
+static int set_consumer_device_supply(struct regulator_dev *rdev,
+ const char *consumer_dev_name,
+ const char *supply)
+{
+ struct regulator_map *node;
+ int has_dev;
+
+ if (supply == NULL)
+ return -EINVAL;
+
+ if (consumer_dev_name != NULL)
+ has_dev = 1;
+ else
+ has_dev = 0;
+
+ list_for_each_entry(node, ®ulator_map_list, list) {
+ if (node->dev_name && consumer_dev_name) {
+ if (strcmp(node->dev_name, consumer_dev_name) != 0)
+ continue;
+ } else if (node->dev_name || consumer_dev_name) {
+ continue;
+ }
+
+ if (strcmp(node->supply, supply) != 0)
+ continue;
+
+ pr_debug("%s: %s/%s is '%s' supply; fail %s/%s\n",
+ consumer_dev_name,
+ dev_name(&node->regulator->dev),
+ node->regulator->desc->name,
+ supply,
+ dev_name(&rdev->dev), rdev_get_name(rdev));
+ return -EBUSY;
+ }
+
+ node = kzalloc(sizeof(struct regulator_map), GFP_KERNEL);
+ if (node == NULL)
+ return -ENOMEM;
+
+ node->regulator = rdev;
+ node->supply = supply;
+
+ if (has_dev) {
+ node->dev_name = kstrdup(consumer_dev_name, GFP_KERNEL);
+ if (node->dev_name == NULL) {
+ kfree(node);
+ return -ENOMEM;
+ }
+ }
+
+ list_add(&node->list, ®ulator_map_list);
+ return 0;
+}
+
+static void unset_regulator_supplies(struct regulator_dev *rdev)
+{
+ struct regulator_map *node, *n;
+
+ list_for_each_entry_safe(node, n, ®ulator_map_list, list) {
+ if (rdev == node->regulator) {
+ list_del(&node->list);
+ kfree(node->dev_name);
+ kfree(node);
+ }
+ }
+}
+
+#define REG_STR_SIZE 64
+
+static struct regulator *create_regulator(struct regulator_dev *rdev,
+ struct device *dev,
+ const char *supply_name)
+{
+ struct regulator *regulator;
+ char buf[REG_STR_SIZE];
+ int err, size;
+
+ regulator = kzalloc(sizeof(*regulator), GFP_KERNEL);
+ if (regulator == NULL)
+ return NULL;
+
+ mutex_lock(&rdev->mutex);
+ regulator->rdev = rdev;
+ list_add(®ulator->list, &rdev->consumer_list);
+
+ if (dev) {
+ /* create a 'requested_microamps_name' sysfs entry */
+ size = scnprintf(buf, REG_STR_SIZE,
+ "microamps_requested_%s-%s",
+ dev_name(dev), supply_name);
+ if (size >= REG_STR_SIZE)
+ goto overflow_err;
+
+ regulator->dev = dev;
+ sysfs_attr_init(®ulator->dev_attr.attr);
+ regulator->dev_attr.attr.name = kstrdup(buf, GFP_KERNEL);
+ if (regulator->dev_attr.attr.name == NULL)
+ goto attr_name_err;
+
+ regulator->dev_attr.attr.mode = 0444;
+ regulator->dev_attr.show = device_requested_uA_show;
+ err = device_create_file(dev, ®ulator->dev_attr);
+ if (err < 0) {
+ rdev_warn(rdev, "could not add regulator_dev requested microamps sysfs entry\n");
+ goto attr_name_err;
+ }
+
+ /* also add a link to the device sysfs entry */
+ size = scnprintf(buf, REG_STR_SIZE, "%s-%s",
+ dev->kobj.name, supply_name);
+ if (size >= REG_STR_SIZE)
+ goto attr_err;
+
+ regulator->supply_name = kstrdup(buf, GFP_KERNEL);
+ if (regulator->supply_name == NULL)
+ goto attr_err;
+
+ err = sysfs_create_link(&rdev->dev.kobj, &dev->kobj,
+ buf);
+ if (err) {
+ rdev_warn(rdev, "could not add device link %s err %d\n",
+ dev->kobj.name, err);
+ goto link_name_err;
+ }
+ } else {
+ regulator->supply_name = kstrdup(supply_name, GFP_KERNEL);
+ if (regulator->supply_name == NULL)
+ goto attr_err;
+ }
+
+ regulator->debugfs = debugfs_create_dir(regulator->supply_name,
+ rdev->debugfs);
+ if (!regulator->debugfs) {
+ rdev_warn(rdev, "Failed to create debugfs directory\n");
+ } else {
+ debugfs_create_u32("uA_load", 0444, regulator->debugfs,
+ ®ulator->uA_load);
+ debugfs_create_u32("min_uV", 0444, regulator->debugfs,
+ ®ulator->min_uV);
+ debugfs_create_u32("max_uV", 0444, regulator->debugfs,
+ ®ulator->max_uV);
+ }
+
+ mutex_unlock(&rdev->mutex);
+ return regulator;
+link_name_err:
+ kfree(regulator->supply_name);
+attr_err:
+ device_remove_file(regulator->dev, ®ulator->dev_attr);
+attr_name_err:
+ kfree(regulator->dev_attr.attr.name);
+overflow_err:
+ list_del(®ulator->list);
+ kfree(regulator);
+ mutex_unlock(&rdev->mutex);
+ return NULL;
+}
+
+static int _regulator_get_enable_time(struct regulator_dev *rdev)
+{
+ if (!rdev->desc->ops->enable_time)
+ return 0;
+ return rdev->desc->ops->enable_time(rdev);
+}
+
+static struct regulator_dev *regulator_dev_lookup(struct device *dev,
+ const char *supply)
+{
+ struct regulator_dev *r;
+ struct device_node *node;
+
+ /* first do a dt based lookup */
+ if (dev && dev->of_node) {
+ node = of_get_regulator(dev, supply);
+ if (node)
+ list_for_each_entry(r, ®ulator_list, list)
+ if (r->dev.parent &&
+ node == r->dev.of_node)
+ return r;
+ }
+
+ /* if not found, try doing it non-dt way */
+ list_for_each_entry(r, ®ulator_list, list)
+ if (strcmp(rdev_get_name(r), supply) == 0)
+ return r;
+
+ return NULL;
+}
+
+/* Internal regulator request function */
+static struct regulator *_regulator_get(struct device *dev, const char *id,
+ int exclusive)
+{
+ struct regulator_dev *rdev;
+ struct regulator_map *map;
+ struct regulator *regulator = ERR_PTR(-EPROBE_DEFER);
+ const char *devname = NULL;
+ int ret;
+
+ if (id == NULL) {
+ pr_err("get() with no identifier\n");
+ return regulator;
+ }
+
+ if (dev)
+ devname = dev_name(dev);
+
+ mutex_lock(®ulator_list_mutex);
+
+ rdev = regulator_dev_lookup(dev, id);
+ if (rdev)
+ goto found;
+
+ list_for_each_entry(map, ®ulator_map_list, list) {
+ /* If the mapping has a device set up it must match */
+ if (map->dev_name &&
+ (!devname || strcmp(map->dev_name, devname)))
+ continue;
+
+ if (strcmp(map->supply, id) == 0) {
+ rdev = map->regulator;
+ goto found;
+ }
+ }
+
+ if (board_wants_dummy_regulator) {
+ rdev = dummy_regulator_rdev;
+ goto found;
+ }
+
+#ifdef CONFIG_REGULATOR_DUMMY
+ if (!devname)
+ devname = "deviceless";
+
+ /* If the board didn't flag that it was fully constrained then
+ * substitute in a dummy regulator so consumers can continue.
+ */
+ if (!has_full_constraints) {
+ pr_warn("%s supply %s not found, using dummy regulator\n",
+ devname, id);
+ rdev = dummy_regulator_rdev;
+ goto found;
+ }
+#endif
+
+ mutex_unlock(®ulator_list_mutex);
+ return regulator;
+
+found:
+ if (rdev->exclusive) {
+ regulator = ERR_PTR(-EPERM);
+ goto out;
+ }
+
+ if (exclusive && rdev->open_count) {
+ regulator = ERR_PTR(-EBUSY);
+ goto out;
+ }
+
+ if (!try_module_get(rdev->owner))
+ goto out;
+
+ regulator = create_regulator(rdev, dev, id);
+ if (regulator == NULL) {
+ regulator = ERR_PTR(-ENOMEM);
+ module_put(rdev->owner);
+ goto out;
+ }
+
+ rdev->open_count++;
+ if (exclusive) {
+ rdev->exclusive = 1;
+
+ ret = _regulator_is_enabled(rdev);
+ if (ret > 0)
+ rdev->use_count = 1;
+ else
+ rdev->use_count = 0;
+ }
+
+out:
+ mutex_unlock(®ulator_list_mutex);
+
+ return regulator;
+}
+
+/**
+ * regulator_get - lookup and obtain a reference to a regulator.
+ * @dev: device for regulator "consumer"
+ * @id: Supply name or regulator ID.
+ *
+ * Returns a struct regulator corresponding to the regulator producer,
+ * or IS_ERR() condition containing errno.
+ *
+ * Use of supply names configured via regulator_set_device_supply() is
+ * strongly encouraged. It is recommended that the supply name used
+ * should match the name used for the supply and/or the relevant
+ * device pins in the datasheet.
+ */
+struct regulator *regulator_get(struct device *dev, const char *id)
+{
+ return _regulator_get(dev, id, 0);
+}
+EXPORT_SYMBOL_GPL(regulator_get);
+
+static void devm_regulator_release(struct device *dev, void *res)
+{
+ regulator_put(*(struct regulator **)res);
+}
+
+/**
+ * devm_regulator_get - Resource managed regulator_get()
+ * @dev: device for regulator "consumer"
+ * @id: Supply name or regulator ID.
+ *
+ * Managed regulator_get(). Regulators returned from this function are
+ * automatically regulator_put() on driver detach. See regulator_get() for more
+ * information.
+ */
+struct regulator *devm_regulator_get(struct device *dev, const char *id)
+{
+ struct regulator **ptr, *regulator;
+
+ ptr = devres_alloc(devm_regulator_release, sizeof(*ptr), GFP_KERNEL);
+ if (!ptr)
+ return ERR_PTR(-ENOMEM);
+
+ regulator = regulator_get(dev, id);
+ if (!IS_ERR(regulator)) {
+ *ptr = regulator;
+ devres_add(dev, ptr);
+ } else {
+ devres_free(ptr);
+ }
+
+ return regulator;
+}
+EXPORT_SYMBOL_GPL(devm_regulator_get);
+
+/**
+ * regulator_get_exclusive - obtain exclusive access to a regulator.
+ * @dev: device for regulator "consumer"
+ * @id: Supply name or regulator ID.
+ *
+ * Returns a struct regulator corresponding to the regulator producer,
+ * or IS_ERR() condition containing errno. Other consumers will be
+ * unable to obtain this reference is held and the use count for the
+ * regulator will be initialised to reflect the current state of the
+ * regulator.
+ *
+ * This is intended for use by consumers which cannot tolerate shared
+ * use of the regulator such as those which need to force the
+ * regulator off for correct operation of the hardware they are
+ * controlling.
+ *
+ * Use of supply names configured via regulator_set_device_supply() is
+ * strongly encouraged. It is recommended that the supply name used
+ * should match the name used for the supply and/or the relevant
+ * device pins in the datasheet.
+ */
+struct regulator *regulator_get_exclusive(struct device *dev, const char *id)
+{
+ return _regulator_get(dev, id, 1);
+}
+EXPORT_SYMBOL_GPL(regulator_get_exclusive);
+
+/**
+ * regulator_put - "free" the regulator source
+ * @regulator: regulator source
+ *
+ * Note: drivers must ensure that all regulator_enable calls made on this
+ * regulator source are balanced by regulator_disable calls prior to calling
+ * this function.
+ */
+void regulator_put(struct regulator *regulator)
+{
+ struct regulator_dev *rdev;
+
+ if (regulator == NULL || IS_ERR(regulator))
+ return;
+
+ mutex_lock(®ulator_list_mutex);
+ rdev = regulator->rdev;
+
+ debugfs_remove_recursive(regulator->debugfs);
+
+ /* remove any sysfs entries */
+ if (regulator->dev) {
+ sysfs_remove_link(&rdev->dev.kobj, regulator->supply_name);
+ device_remove_file(regulator->dev, ®ulator->dev_attr);
+ kfree(regulator->dev_attr.attr.name);
+ }
+ mutex_lock(&rdev->mutex);
+ kfree(regulator->supply_name);
+ list_del(®ulator->list);
+ kfree(regulator);
+
+ rdev->open_count--;
+ rdev->exclusive = 0;
+ mutex_unlock(&rdev->mutex);
+
+ module_put(rdev->owner);
+ mutex_unlock(®ulator_list_mutex);
+}
+EXPORT_SYMBOL_GPL(regulator_put);
+
+static int devm_regulator_match(struct device *dev, void *res, void *data)
+{
+ struct regulator **r = res;
+ if (!r || !*r) {
+ WARN_ON(!r || !*r);
+ return 0;
+ }
+ return *r == data;
+}
+
+/**
+ * devm_regulator_put - Resource managed regulator_put()
+ * @regulator: regulator to free
+ *
+ * Deallocate a regulator allocated with devm_regulator_get(). Normally
+ * this function will not need to be called and the resource management
+ * code will ensure that the resource is freed.
+ */
+void devm_regulator_put(struct regulator *regulator)
+{
+ int rc;
+
+ rc = devres_destroy(regulator->dev, devm_regulator_release,
+ devm_regulator_match, regulator);
+ if (rc == 0)
+ regulator_put(regulator);
+ else
+ WARN_ON(rc);
+}
+EXPORT_SYMBOL_GPL(devm_regulator_put);
+
+static int _regulator_can_change_status(struct regulator_dev *rdev)
+{
+ if (!rdev->constraints)
+ return 0;
+
+ if (rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_STATUS)
+ return 1;
+ else
+ return 0;
+}
+
+/* locks held by regulator_enable() */
+static int _regulator_enable(struct regulator_dev *rdev)
+{
+ int ret, delay;
+
+ /* check voltage and requested load before enabling */
+ if (rdev->constraints &&
+ (rdev->constraints->valid_ops_mask & REGULATOR_CHANGE_DRMS))
+ drms_uA_update(rdev);
+
+ if (rdev->use_count == 0) {
+ /* The regulator may on if it's not switchable or left on */
+ ret = _regulator_is_enabled(rdev);
+ if (ret == -EINVAL || ret == 0) {
+ if (!_regulator_can_change_status(rdev))
+ return -EPERM;
+
+ if (!rdev->desc->ops->enable)
+ return -EINVAL;
+
+ /* Query before enabling in case configuration
+ * dependent. */
+ ret = _regulator_get_enable_time(rdev);
+ if (ret >= 0) {
+ delay = ret;
+ } else {
+ rdev_warn(rdev, "enable_time() failed: %d\n",
+ ret);
+ delay = 0;
+ }
+
+ trace_regulator_enable(rdev_get_name(rdev));
+
+ /* Allow the regulator to ramp; it would be useful
+ * to extend this for bulk operations so that the
+ * regulators can ramp together. */
+ ret = rdev->desc->ops->enable(rdev);
+ if (ret < 0)
+ return ret;
+
+ trace_regulator_enable_delay(rdev_get_name(rdev));
+
+ if (delay >= 1000) {
+ mdelay(delay / 1000);
+ udelay(delay % 1000);
+ } else if (delay) {
+ udelay(delay);
+ }
+
+ trace_regulator_enable_complete(rdev_get_name(rdev));
+
+ } else if (ret < 0) {
+ rdev_err(rdev, "is_enabled() failed: %d\n", ret);
+ return ret;
+ }
+ /* Fallthrough on positive return values - already enabled */
+ }
+
+ rdev->use_count++;
+
+ return 0;
+}
+
+/**
+ * regulator_enable - enable regulator output
+ * @regulator: regulator source
+ *
+ * Request that the regulator be enabled with the regulator output at
+ * the predefined voltage or current value. Calls to regulator_enable()
+ * must be balanced with calls to regulator_disable().
+ *
+ * NOTE: the output value can be set by other drivers, boot loader or may be
+ * hardwired in the regulator.
+ */
+int regulator_enable(struct regulator *regulator)
+{
+ struct regulator_dev *rdev = regulator->rdev;
+ int ret = 0;
+
+ if (rdev->supply) {
+ ret = regulator_enable(rdev->supply);
+ if (ret != 0)
+ return ret;
+ }
+
+ mutex_lock(&rdev->mutex);
+ ret = _regulator_enable(rdev);
+ mutex_unlock(&rdev->mutex);
+
+ if (ret != 0 && rdev->supply)
+ regulator_disable(rdev->supply);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_enable);
+
+/* locks held by regulator_disable() */
+static int _regulator_disable(struct regulator_dev *rdev)
+{
+ int ret = 0;
+
+ if (WARN(rdev->use_count <= 0,
+ "unbalanced disables for %s\n", rdev_get_name(rdev)))
+ return -EIO;
+
+ /* are we the last user and permitted to disable ? */
+ if (rdev->use_count == 1 &&
+ (rdev->constraints && !rdev->constraints->always_on)) {
+
+ /* we are last user */
+ if (_regulator_can_change_status(rdev) &&
+ rdev->desc->ops->disable) {
+ trace_regulator_disable(rdev_get_name(rdev));
+
+ ret = rdev->desc->ops->disable(rdev);
+ if (ret < 0) {
+ rdev_err(rdev, "failed to disable\n");
+ return ret;
+ }
+
+ trace_regulator_disable_complete(rdev_get_name(rdev));
+
+ _notifier_call_chain(rdev, REGULATOR_EVENT_DISABLE,
+ NULL);
+ }
+
+ rdev->use_count = 0;
+ } else if (rdev->use_count > 1) {
+
+ if (rdev->constraints &&
+ (rdev->constraints->valid_ops_mask &
+ REGULATOR_CHANGE_DRMS))
+ drms_uA_update(rdev);
+
+ rdev->use_count--;
+ }
+
+ return ret;
+}
+
+/**
+ * regulator_disable - disable regulator output
+ * @regulator: regulator source
+ *
+ * Disable the regulator output voltage or current. Calls to
+ * regulator_enable() must be balanced with calls to
+ * regulator_disable().
+ *
+ * NOTE: this will only disable the regulator output if no other consumer
+ * devices have it enabled, the regulator device supports disabling and
+ * machine constraints permit this operation.
+ */
+int regulator_disable(struct regulator *regulator)
+{
+ struct regulator_dev *rdev = regulator->rdev;
+ int ret = 0;
+
+ mutex_lock(&rdev->mutex);
+ ret = _regulator_disable(rdev);
+ mutex_unlock(&rdev->mutex);
+
+ if (ret == 0 && rdev->supply)
+ regulator_disable(rdev->supply);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_disable);
+
+/* locks held by regulator_force_disable() */
+static int _regulator_force_disable(struct regulator_dev *rdev)
+{
+ int ret = 0;
+
+ /* force disable */
+ if (rdev->desc->ops->disable) {
+ /* ah well, who wants to live forever... */
+ ret = rdev->desc->ops->disable(rdev);
+ if (ret < 0) {
+ rdev_err(rdev, "failed to force disable\n");
+ return ret;
+ }
+ /* notify other consumers that power has been forced off */
+ _notifier_call_chain(rdev, REGULATOR_EVENT_FORCE_DISABLE |
+ REGULATOR_EVENT_DISABLE, NULL);
+ }
+
+ return ret;
+}
+
+/**
+ * regulator_force_disable - force disable regulator output
+ * @regulator: regulator source
+ *
+ * Forcibly disable the regulator output voltage or current.
+ * NOTE: this *will* disable the regulator output even if other consumer
+ * devices have it enabled. This should be used for situations when device
+ * damage will likely occur if the regulator is not disabled (e.g. over temp).
+ */
+int regulator_force_disable(struct regulator *regulator)
+{
+ struct regulator_dev *rdev = regulator->rdev;
+ int ret;
+
+ mutex_lock(&rdev->mutex);
+ regulator->uA_load = 0;
+ ret = _regulator_force_disable(regulator->rdev);
+ mutex_unlock(&rdev->mutex);
+
+ if (rdev->supply)
+ while (rdev->open_count--)
+ regulator_disable(rdev->supply);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_force_disable);
+
+static void regulator_disable_work(struct work_struct *work)
+{
+ struct regulator_dev *rdev = container_of(work, struct regulator_dev,
+ disable_work.work);
+ int count, i, ret;
+
+ mutex_lock(&rdev->mutex);
+
+ BUG_ON(!rdev->deferred_disables);
+
+ count = rdev->deferred_disables;
+ rdev->deferred_disables = 0;
+
+ for (i = 0; i < count; i++) {
+ ret = _regulator_disable(rdev);
+ if (ret != 0)
+ rdev_err(rdev, "Deferred disable failed: %d\n", ret);
+ }
+
+ mutex_unlock(&rdev->mutex);
+
+ if (rdev->supply) {
+ for (i = 0; i < count; i++) {
+ ret = regulator_disable(rdev->supply);
+ if (ret != 0) {
+ rdev_err(rdev,
+ "Supply disable failed: %d\n", ret);
+ }
+ }
+ }
+}
+
+/**
+ * regulator_disable_deferred - disable regulator output with delay
+ * @regulator: regulator source
+ * @ms: miliseconds until the regulator is disabled
+ *
+ * Execute regulator_disable() on the regulator after a delay. This
+ * is intended for use with devices that require some time to quiesce.
+ *
+ * NOTE: this will only disable the regulator output if no other consumer
+ * devices have it enabled, the regulator device supports disabling and
+ * machine constraints permit this operation.
+ */
+int regulator_disable_deferred(struct regulator *regulator, int ms)
+{
+ struct regulator_dev *rdev = regulator->rdev;
+ int ret;
+
+ mutex_lock(&rdev->mutex);
+ rdev->deferred_disables++;
+ mutex_unlock(&rdev->mutex);
+
+ ret = schedule_delayed_work(&rdev->disable_work,
+ msecs_to_jiffies(ms));
+ if (ret < 0)
+ return ret;
+ else
+ return 0;
+}
+EXPORT_SYMBOL_GPL(regulator_disable_deferred);
+
+static int _regulator_is_enabled(struct regulator_dev *rdev)
+{
+ /* If we don't know then assume that the regulator is always on */
+ if (!rdev->desc->ops->is_enabled)
+ return 1;
+
+ return rdev->desc->ops->is_enabled(rdev);
+}
+
+/**
+ * regulator_is_enabled - is the regulator output enabled
+ * @regulator: regulator source
+ *
+ * Returns positive if the regulator driver backing the source/client
+ * has requested that the device be enabled, zero if it hasn't, else a
+ * negative errno code.
+ *
+ * Note that the device backing this regulator handle can have multiple
+ * users, so it might be enabled even if regulator_enable() was never
+ * called for this particular source.
+ */
+int regulator_is_enabled(struct regulator *regulator)
+{
+ int ret;
+
+ mutex_lock(®ulator->rdev->mutex);
+ ret = _regulator_is_enabled(regulator->rdev);
+ mutex_unlock(®ulator->rdev->mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_is_enabled);
+
+/**
+ * regulator_count_voltages - count regulator_list_voltage() selectors
+ * @regulator: regulator source
+ *
+ * Returns number of selectors, or negative errno. Selectors are
+ * numbered starting at zero, and typically correspond to bitfields
+ * in hardware registers.
+ */
+int regulator_count_voltages(struct regulator *regulator)
+{
+ struct regulator_dev *rdev = regulator->rdev;
+
+ return rdev->desc->n_voltages ? : -EINVAL;
+}
+EXPORT_SYMBOL_GPL(regulator_count_voltages);
+
+/**
+ * regulator_list_voltage - enumerate supported voltages
+ * @regulator: regulator source
+ * @selector: identify voltage to list
+ * Context: can sleep
+ *
+ * Returns a voltage that can be passed to @regulator_set_voltage(),
+ * zero if this selector code can't be used on this system, or a
+ * negative errno.
+ */
+int regulator_list_voltage(struct regulator *regulator, unsigned selector)
+{
+ struct regulator_dev *rdev = regulator->rdev;
+ struct regulator_ops *ops = rdev->desc->ops;
+ int ret;
+
+ if (!ops->list_voltage || selector >= rdev->desc->n_voltages)
+ return -EINVAL;
+
+ mutex_lock(&rdev->mutex);
+ ret = ops->list_voltage(rdev, selector);
+ mutex_unlock(&rdev->mutex);
+
+ if (ret > 0) {
+ if (ret < rdev->constraints->min_uV)
+ ret = 0;
+ else if (ret > rdev->constraints->max_uV)
+ ret = 0;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_list_voltage);
+
+/**
+ * regulator_is_supported_voltage - check if a voltage range can be supported
+ *
+ * @regulator: Regulator to check.
+ * @min_uV: Minimum required voltage in uV.
+ * @max_uV: Maximum required voltage in uV.
+ *
+ * Returns a boolean or a negative error code.
+ */
+int regulator_is_supported_voltage(struct regulator *regulator,
+ int min_uV, int max_uV)
+{
+ int i, voltages, ret;
+
+ ret = regulator_count_voltages(regulator);
+ if (ret < 0)
+ return ret;
+ voltages = ret;
+
+ for (i = 0; i < voltages; i++) {
+ ret = regulator_list_voltage(regulator, i);
+
+ if (ret >= min_uV && ret <= max_uV)
+ return 1;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(regulator_is_supported_voltage);
+
+static int _regulator_do_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV)
+{
+ int ret;
+ int delay = 0;
+ unsigned int selector;
+
+ trace_regulator_set_voltage(rdev_get_name(rdev), min_uV, max_uV);
+
+ min_uV += rdev->constraints->uV_offset;
+ max_uV += rdev->constraints->uV_offset;
+
+ if (rdev->desc->ops->set_voltage) {
+ ret = rdev->desc->ops->set_voltage(rdev, min_uV, max_uV,
+ &selector);
+
+ if (rdev->desc->ops->list_voltage)
+ selector = rdev->desc->ops->list_voltage(rdev,
+ selector);
+ else
+ selector = -1;
+ } else if (rdev->desc->ops->set_voltage_sel) {
+ int best_val = INT_MAX;
+ int i;
+
+ selector = 0;
+
+ /* Find the smallest voltage that falls within the specified
+ * range.
+ */
+ for (i = 0; i < rdev->desc->n_voltages; i++) {
+ ret = rdev->desc->ops->list_voltage(rdev, i);
+ if (ret < 0)
+ continue;
+
+ if (ret < best_val && ret >= min_uV && ret <= max_uV) {
+ best_val = ret;
+ selector = i;
+ }
+ }
+
+ /*
+ * If we can't obtain the old selector there is not enough
+ * info to call set_voltage_time_sel().
+ */
+ if (rdev->desc->ops->set_voltage_time_sel &&
+ rdev->desc->ops->get_voltage_sel) {
+ unsigned int old_selector = 0;
+
+ ret = rdev->desc->ops->get_voltage_sel(rdev);
+ if (ret < 0)
+ return ret;
+ old_selector = ret;
+ ret = rdev->desc->ops->set_voltage_time_sel(rdev,
+ old_selector, selector);
+ if (ret < 0)
+ rdev_warn(rdev, "set_voltage_time_sel() failed: %d\n", ret);
+ else
+ delay = ret;
+ }
+
+ if (best_val != INT_MAX) {
+ ret = rdev->desc->ops->set_voltage_sel(rdev, selector);
+ selector = best_val;
+ } else {
+ ret = -EINVAL;
+ }
+ } else {
+ ret = -EINVAL;
+ }
+
+ /* Insert any necessary delays */
+ if (delay >= 1000) {
+ mdelay(delay / 1000);
+ udelay(delay % 1000);
+ } else if (delay) {
+ udelay(delay);
+ }
+
+ if (ret == 0)
+ _notifier_call_chain(rdev, REGULATOR_EVENT_VOLTAGE_CHANGE,
+ NULL);
+
+ trace_regulator_set_voltage_complete(rdev_get_name(rdev), selector);
+
+ return ret;
+}
+
+/**
+ * regulator_set_voltage - set regulator output voltage
+ * @regulator: regulator source
+ * @min_uV: Minimum required voltage in uV
+ * @max_uV: Maximum acceptable voltage in uV
+ *
+ * Sets a voltage regulator to the desired output voltage. This can be set
+ * during any regulator state. IOW, regulator can be disabled or enabled.
+ *
+ * If the regulator is enabled then the voltage will change to the new value
+ * immediately otherwise if the regulator is disabled the regulator will
+ * output at the new voltage when enabled.
+ *
+ * NOTE: If the regulator is shared between several devices then the lowest
+ * request voltage that meets the system constraints will be used.
+ * Regulator system constraints must be set for this regulator before
+ * calling this function otherwise this call will fail.
+ */
+int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV)
+{
+ struct regulator_dev *rdev = regulator->rdev;
+ int ret = 0;
+
+ mutex_lock(&rdev->mutex);
+
+ /* If we're setting the same range as last time the change
+ * should be a noop (some cpufreq implementations use the same
+ * voltage for multiple frequencies, for example).
+ */
+ if (regulator->min_uV == min_uV && regulator->max_uV == max_uV)
+ goto out;
+
+ /* sanity check */
+ if (!rdev->desc->ops->set_voltage &&
+ !rdev->desc->ops->set_voltage_sel) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* constraints check */
+ ret = regulator_check_voltage(rdev, &min_uV, &max_uV);
+ if (ret < 0)
+ goto out;
+ regulator->min_uV = min_uV;
+ regulator->max_uV = max_uV;
+
+ ret = regulator_check_consumers(rdev, &min_uV, &max_uV);
+ if (ret < 0)
+ goto out;
+
+ ret = _regulator_do_set_voltage(rdev, min_uV, max_uV);
+
+out:
+ mutex_unlock(&rdev->mutex);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_set_voltage);
+
+/**
+ * regulator_set_voltage_time - get raise/fall time
+ * @regulator: regulator source
+ * @old_uV: starting voltage in microvolts
+ * @new_uV: target voltage in microvolts
+ *
+ * Provided with the starting and ending voltage, this function attempts to
+ * calculate the time in microseconds required to rise or fall to this new
+ * voltage.
+ */
+int regulator_set_voltage_time(struct regulator *regulator,
+ int old_uV, int new_uV)
+{
+ struct regulator_dev *rdev = regulator->rdev;
+ struct regulator_ops *ops = rdev->desc->ops;
+ int old_sel = -1;
+ int new_sel = -1;
+ int voltage;
+ int i;
+
+ /* Currently requires operations to do this */
+ if (!ops->list_voltage || !ops->set_voltage_time_sel
+ || !rdev->desc->n_voltages)
+ return -EINVAL;
+
+ for (i = 0; i < rdev->desc->n_voltages; i++) {
+ /* We only look for exact voltage matches here */
+ voltage = regulator_list_voltage(regulator, i);
+ if (voltage < 0)
+ return -EINVAL;
+ if (voltage == 0)
+ continue;
+ if (voltage == old_uV)
+ old_sel = i;
+ if (voltage == new_uV)
+ new_sel = i;
+ }
+
+ if (old_sel < 0 || new_sel < 0)
+ return -EINVAL;
+
+ return ops->set_voltage_time_sel(rdev, old_sel, new_sel);
+}
+EXPORT_SYMBOL_GPL(regulator_set_voltage_time);
+
+/**
+ * regulator_sync_voltage - re-apply last regulator output voltage
+ * @regulator: regulator source
+ *
+ * Re-apply the last configured voltage. This is intended to be used
+ * where some external control source the consumer is cooperating with
+ * has caused the configured voltage to change.
+ */
+int regulator_sync_voltage(struct regulator *regulator)
+{
+ struct regulator_dev *rdev = regulator->rdev;
+ int ret, min_uV, max_uV;
+
+ mutex_lock(&rdev->mutex);
+
+ if (!rdev->desc->ops->set_voltage &&
+ !rdev->desc->ops->set_voltage_sel) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* This is only going to work if we've had a voltage configured. */
+ if (!regulator->min_uV && !regulator->max_uV) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ min_uV = regulator->min_uV;
+ max_uV = regulator->max_uV;
+
+ /* This should be a paranoia check... */
+ ret = regulator_check_voltage(rdev, &min_uV, &max_uV);
+ if (ret < 0)
+ goto out;
+
+ ret = regulator_check_consumers(rdev, &min_uV, &max_uV);
+ if (ret < 0)
+ goto out;
+
+ ret = _regulator_do_set_voltage(rdev, min_uV, max_uV);
+
+out:
+ mutex_unlock(&rdev->mutex);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_sync_voltage);
+
+static int _regulator_get_voltage(struct regulator_dev *rdev)
+{
+ int sel, ret;
+
+ if (rdev->desc->ops->get_voltage_sel) {
+ sel = rdev->desc->ops->get_voltage_sel(rdev);
+ if (sel < 0)
+ return sel;
+ ret = rdev->desc->ops->list_voltage(rdev, sel);
+ } else if (rdev->desc->ops->get_voltage) {
+ ret = rdev->desc->ops->get_voltage(rdev);
+ } else {
+ return -EINVAL;
+ }
+
+ if (ret < 0)
+ return ret;
+ return ret - rdev->constraints->uV_offset;
+}
+
+/**
+ * regulator_get_voltage - get regulator output voltage
+ * @regulator: regulator source
+ *
+ * This returns the current regulator voltage in uV.
+ *
+ * NOTE: If the regulator is disabled it will return the voltage value. This
+ * function should not be used to determine regulator state.
+ */
+int regulator_get_voltage(struct regulator *regulator)
+{
+ int ret;
+
+ mutex_lock(®ulator->rdev->mutex);
+
+ ret = _regulator_get_voltage(regulator->rdev);
+
+ mutex_unlock(®ulator->rdev->mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_get_voltage);
+
+/**
+ * regulator_set_current_limit - set regulator output current limit
+ * @regulator: regulator source
+ * @min_uA: Minimuum supported current in uA
+ * @max_uA: Maximum supported current in uA
+ *
+ * Sets current sink to the desired output current. This can be set during
+ * any regulator state. IOW, regulator can be disabled or enabled.
+ *
+ * If the regulator is enabled then the current will change to the new value
+ * immediately otherwise if the regulator is disabled the regulator will
+ * output at the new current when enabled.
+ *
+ * NOTE: Regulator system constraints must be set for this regulator before
+ * calling this function otherwise this call will fail.
+ */
+int regulator_set_current_limit(struct regulator *regulator,
+ int min_uA, int max_uA)
+{
+ struct regulator_dev *rdev = regulator->rdev;
+ int ret;
+
+ mutex_lock(&rdev->mutex);
+
+ /* sanity check */
+ if (!rdev->desc->ops->set_current_limit) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* constraints check */
+ ret = regulator_check_current_limit(rdev, &min_uA, &max_uA);
+ if (ret < 0)
+ goto out;
+
+ ret = rdev->desc->ops->set_current_limit(rdev, min_uA, max_uA);
+out:
+ mutex_unlock(&rdev->mutex);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_set_current_limit);
+
+static int _regulator_get_current_limit(struct regulator_dev *rdev)
+{
+ int ret;
+
+ mutex_lock(&rdev->mutex);
+
+ /* sanity check */
+ if (!rdev->desc->ops->get_current_limit) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ ret = rdev->desc->ops->get_current_limit(rdev);
+out:
+ mutex_unlock(&rdev->mutex);
+ return ret;
+}
+
+/**
+ * regulator_get_current_limit - get regulator output current
+ * @regulator: regulator source
+ *
+ * This returns the current supplied by the specified current sink in uA.
+ *
+ * NOTE: If the regulator is disabled it will return the current value. This
+ * function should not be used to determine regulator state.
+ */
+int regulator_get_current_limit(struct regulator *regulator)
+{
+ return _regulator_get_current_limit(regulator->rdev);
+}
+EXPORT_SYMBOL_GPL(regulator_get_current_limit);
+
+/**
+ * regulator_set_mode - set regulator operating mode
+ * @regulator: regulator source
+ * @mode: operating mode - one of the REGULATOR_MODE constants
+ *
+ * Set regulator operating mode to increase regulator efficiency or improve
+ * regulation performance.
+ *
+ * NOTE: Regulator system constraints must be set for this regulator before
+ * calling this function otherwise this call will fail.
+ */
+int regulator_set_mode(struct regulator *regulator, unsigned int mode)
+{
+ struct regulator_dev *rdev = regulator->rdev;
+ int ret;
+ int regulator_curr_mode;
+
+ mutex_lock(&rdev->mutex);
+
+ /* sanity check */
+ if (!rdev->desc->ops->set_mode) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* return if the same mode is requested */
+ if (rdev->desc->ops->get_mode) {
+ regulator_curr_mode = rdev->desc->ops->get_mode(rdev);
+ if (regulator_curr_mode == mode) {
+ ret = 0;
+ goto out;
+ }
+ }
+
+ /* constraints check */
+ ret = regulator_mode_constrain(rdev, &mode);
+ if (ret < 0)
+ goto out;
+
+ ret = rdev->desc->ops->set_mode(rdev, mode);
+out:
+ mutex_unlock(&rdev->mutex);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_set_mode);
+
+static unsigned int _regulator_get_mode(struct regulator_dev *rdev)
+{
+ int ret;
+
+ mutex_lock(&rdev->mutex);
+
+ /* sanity check */
+ if (!rdev->desc->ops->get_mode) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ ret = rdev->desc->ops->get_mode(rdev);
+out:
+ mutex_unlock(&rdev->mutex);
+ return ret;
+}
+
+/**
+ * regulator_get_mode - get regulator operating mode
+ * @regulator: regulator source
+ *
+ * Get the current regulator operating mode.
+ */
+unsigned int regulator_get_mode(struct regulator *regulator)
+{
+ return _regulator_get_mode(regulator->rdev);
+}
+EXPORT_SYMBOL_GPL(regulator_get_mode);
+
+/**
+ * regulator_set_optimum_mode - set regulator optimum operating mode
+ * @regulator: regulator source
+ * @uA_load: load current
+ *
+ * Notifies the regulator core of a new device load. This is then used by
+ * DRMS (if enabled by constraints) to set the most efficient regulator
+ * operating mode for the new regulator loading.
+ *
+ * Consumer devices notify their supply regulator of the maximum power
+ * they will require (can be taken from device datasheet in the power
+ * consumption tables) when they change operational status and hence power
+ * state. Examples of operational state changes that can affect power
+ * consumption are :-
+ *
+ * o Device is opened / closed.
+ * o Device I/O is about to begin or has just finished.
+ * o Device is idling in between work.
+ *
+ * This information is also exported via sysfs to userspace.
+ *
+ * DRMS will sum the total requested load on the regulator and change
+ * to the most efficient operating mode if platform constraints allow.
+ *
+ * Returns the new regulator mode or error.
+ */
+int regulator_set_optimum_mode(struct regulator *regulator, int uA_load)
+{
+ struct regulator_dev *rdev = regulator->rdev;
+ struct regulator *consumer;
+ int ret, output_uV, input_uV, total_uA_load = 0;
+ unsigned int mode;
+
+ mutex_lock(&rdev->mutex);
+
+ /*
+ * first check to see if we can set modes at all, otherwise just
+ * tell the consumer everything is OK.
+ */
+ regulator->uA_load = uA_load;
+ ret = regulator_check_drms(rdev);
+ if (ret < 0) {
+ ret = 0;
+ goto out;
+ }
+
+ if (!rdev->desc->ops->get_optimum_mode)
+ goto out;
+
+ /*
+ * we can actually do this so any errors are indicators of
+ * potential real failure.
+ */
+ ret = -EINVAL;
+
+ /* get output voltage */
+ output_uV = _regulator_get_voltage(rdev);
+ if (output_uV <= 0) {
+ rdev_err(rdev, "invalid output voltage found\n");
+ goto out;
+ }
+
+ /* get input voltage */
+ input_uV = 0;
+ if (rdev->supply)
+ input_uV = regulator_get_voltage(rdev->supply);
+ if (input_uV <= 0)
+ input_uV = rdev->constraints->input_uV;
+ if (input_uV <= 0) {
+ rdev_err(rdev, "invalid input voltage found\n");
+ goto out;
+ }
+
+ /* calc total requested load for this regulator */
+ list_for_each_entry(consumer, &rdev->consumer_list, list)
+ total_uA_load += consumer->uA_load;
+
+ mode = rdev->desc->ops->get_optimum_mode(rdev,
+ input_uV, output_uV,
+ total_uA_load);
+ ret = regulator_mode_constrain(rdev, &mode);
+ if (ret < 0) {
+ rdev_err(rdev, "failed to get optimum mode @ %d uA %d -> %d uV\n",
+ total_uA_load, input_uV, output_uV);
+ goto out;
+ }
+
+ ret = rdev->desc->ops->set_mode(rdev, mode);
+ if (ret < 0) {
+ rdev_err(rdev, "failed to set optimum mode %x\n", mode);
+ goto out;
+ }
+ ret = mode;
+out:
+ mutex_unlock(&rdev->mutex);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_set_optimum_mode);
+
+/**
+ * regulator_register_notifier - register regulator event notifier
+ * @regulator: regulator source
+ * @nb: notifier block
+ *
+ * Register notifier block to receive regulator events.
+ */
+int regulator_register_notifier(struct regulator *regulator,
+ struct notifier_block *nb)
+{
+ return blocking_notifier_chain_register(®ulator->rdev->notifier,
+ nb);
+}
+EXPORT_SYMBOL_GPL(regulator_register_notifier);
+
+/**
+ * regulator_unregister_notifier - unregister regulator event notifier
+ * @regulator: regulator source
+ * @nb: notifier block
+ *
+ * Unregister regulator event notifier block.
+ */
+int regulator_unregister_notifier(struct regulator *regulator,
+ struct notifier_block *nb)
+{
+ return blocking_notifier_chain_unregister(®ulator->rdev->notifier,
+ nb);
+}
+EXPORT_SYMBOL_GPL(regulator_unregister_notifier);
+
+/* notify regulator consumers and downstream regulator consumers.
+ * Note mutex must be held by caller.
+ */
+static void _notifier_call_chain(struct regulator_dev *rdev,
+ unsigned long event, void *data)
+{
+ /* call rdev chain first */
+ blocking_notifier_call_chain(&rdev->notifier, event, NULL);
+}
+
+/**
+ * regulator_bulk_get - get multiple regulator consumers
+ *
+ * @dev: Device to supply
+ * @num_consumers: Number of consumers to register
+ * @consumers: Configuration of consumers; clients are stored here.
+ *
+ * @return 0 on success, an errno on failure.
+ *
+ * This helper function allows drivers to get several regulator
+ * consumers in one operation. If any of the regulators cannot be
+ * acquired then any regulators that were allocated will be freed
+ * before returning to the caller.
+ */
+int regulator_bulk_get(struct device *dev, int num_consumers,
+ struct regulator_bulk_data *consumers)
+{
+ int i;
+ int ret;
+
+ for (i = 0; i < num_consumers; i++)
+ consumers[i].consumer = NULL;
+
+ for (i = 0; i < num_consumers; i++) {
+ consumers[i].consumer = regulator_get(dev,
+ consumers[i].supply);
+ if (IS_ERR(consumers[i].consumer)) {
+ ret = PTR_ERR(consumers[i].consumer);
+ dev_err(dev, "Failed to get supply '%s': %d\n",
+ consumers[i].supply, ret);
+ consumers[i].consumer = NULL;
+ goto err;
+ }
+ }
+
+ return 0;
+
+err:
+ while (--i >= 0)
+ regulator_put(consumers[i].consumer);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_bulk_get);
+
+/**
+ * devm_regulator_bulk_get - managed get multiple regulator consumers
+ *
+ * @dev: Device to supply
+ * @num_consumers: Number of consumers to register
+ * @consumers: Configuration of consumers; clients are stored here.
+ *
+ * @return 0 on success, an errno on failure.
+ *
+ * This helper function allows drivers to get several regulator
+ * consumers in one operation with management, the regulators will
+ * automatically be freed when the device is unbound. If any of the
+ * regulators cannot be acquired then any regulators that were
+ * allocated will be freed before returning to the caller.
+ */
+int devm_regulator_bulk_get(struct device *dev, int num_consumers,
+ struct regulator_bulk_data *consumers)
+{
+ int i;
+ int ret;
+
+ for (i = 0; i < num_consumers; i++)
+ consumers[i].consumer = NULL;
+
+ for (i = 0; i < num_consumers; i++) {
+ consumers[i].consumer = devm_regulator_get(dev,
+ consumers[i].supply);
+ if (IS_ERR(consumers[i].consumer)) {
+ ret = PTR_ERR(consumers[i].consumer);
+ dev_err(dev, "Failed to get supply '%s': %d\n",
+ consumers[i].supply, ret);
+ consumers[i].consumer = NULL;
+ goto err;
+ }
+ }
+
+ return 0;
+
+err:
+ for (i = 0; i < num_consumers && consumers[i].consumer; i++)
+ devm_regulator_put(consumers[i].consumer);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(devm_regulator_bulk_get);
+
+static void regulator_bulk_enable_async(void *data, async_cookie_t cookie)
+{
+ struct regulator_bulk_data *bulk = data;
+
+ bulk->ret = regulator_enable(bulk->consumer);
+}
+
+/**
+ * regulator_bulk_enable - enable multiple regulator consumers
+ *
+ * @num_consumers: Number of consumers
+ * @consumers: Consumer data; clients are stored here.
+ * @return 0 on success, an errno on failure
+ *
+ * This convenience API allows consumers to enable multiple regulator
+ * clients in a single API call. If any consumers cannot be enabled
+ * then any others that were enabled will be disabled again prior to
+ * return.
+ */
+int regulator_bulk_enable(int num_consumers,
+ struct regulator_bulk_data *consumers)
+{
+ LIST_HEAD(async_domain);
+ int i;
+ int ret = 0;
+
+ for (i = 0; i < num_consumers; i++)
+ async_schedule_domain(regulator_bulk_enable_async,
+ &consumers[i], &async_domain);
+
+ async_synchronize_full_domain(&async_domain);
+
+ /* If any consumer failed we need to unwind any that succeeded */
+ for (i = 0; i < num_consumers; i++) {
+ if (consumers[i].ret != 0) {
+ ret = consumers[i].ret;
+ goto err;
+ }
+ }
+
+ return 0;
+
+err:
+ pr_err("Failed to enable %s: %d\n", consumers[i].supply, ret);
+ while (--i >= 0)
+ regulator_disable(consumers[i].consumer);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_bulk_enable);
+
+/**
+ * regulator_bulk_disable - disable multiple regulator consumers
+ *
+ * @num_consumers: Number of consumers
+ * @consumers: Consumer data; clients are stored here.
+ * @return 0 on success, an errno on failure
+ *
+ * This convenience API allows consumers to disable multiple regulator
+ * clients in a single API call. If any consumers cannot be disabled
+ * then any others that were disabled will be enabled again prior to
+ * return.
+ */
+int regulator_bulk_disable(int num_consumers,
+ struct regulator_bulk_data *consumers)
+{
+ int i;
+ int ret;
+
+ for (i = num_consumers - 1; i >= 0; --i) {
+ ret = regulator_disable(consumers[i].consumer);
+ if (ret != 0)
+ goto err;
+ }
+
+ return 0;
+
+err:
+ pr_err("Failed to disable %s: %d\n", consumers[i].supply, ret);
+ for (++i; i < num_consumers; ++i)
+ regulator_enable(consumers[i].consumer);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_bulk_disable);
+
+/**
+ * regulator_bulk_force_disable - force disable multiple regulator consumers
+ *
+ * @num_consumers: Number of consumers
+ * @consumers: Consumer data; clients are stored here.
+ * @return 0 on success, an errno on failure
+ *
+ * This convenience API allows consumers to forcibly disable multiple regulator
+ * clients in a single API call.
+ * NOTE: This should be used for situations when device damage will
+ * likely occur if the regulators are not disabled (e.g. over temp).
+ * Although regulator_force_disable function call for some consumers can
+ * return error numbers, the function is called for all consumers.
+ */
+int regulator_bulk_force_disable(int num_consumers,
+ struct regulator_bulk_data *consumers)
+{
+ int i;
+ int ret;
+
+ for (i = 0; i < num_consumers; i++)
+ consumers[i].ret =
+ regulator_force_disable(consumers[i].consumer);
+
+ for (i = 0; i < num_consumers; i++) {
+ if (consumers[i].ret != 0) {
+ ret = consumers[i].ret;
+ goto out;
+ }
+ }
+
+ return 0;
+out:
+ return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_bulk_force_disable);
+
+/**
+ * regulator_bulk_free - free multiple regulator consumers
+ *
+ * @num_consumers: Number of consumers
+ * @consumers: Consumer data; clients are stored here.
+ *
+ * This convenience API allows consumers to free multiple regulator
+ * clients in a single API call.
+ */
+void regulator_bulk_free(int num_consumers,
+ struct regulator_bulk_data *consumers)
+{
+ int i;
+
+ for (i = 0; i < num_consumers; i++) {
+ regulator_put(consumers[i].consumer);
+ consumers[i].consumer = NULL;
+ }
+}
+EXPORT_SYMBOL_GPL(regulator_bulk_free);
+
+/**
+ * regulator_notifier_call_chain - call regulator event notifier
+ * @rdev: regulator source
+ * @event: notifier block
+ * @data: callback-specific data.
+ *
+ * Called by regulator drivers to notify clients a regulator event has
+ * occurred. We also notify regulator clients downstream.
+ * Note lock must be held by caller.
+ */
+int regulator_notifier_call_chain(struct regulator_dev *rdev,
+ unsigned long event, void *data)
+{
+ _notifier_call_chain(rdev, event, data);
+ return NOTIFY_DONE;
+
+}
+EXPORT_SYMBOL_GPL(regulator_notifier_call_chain);
+
+/**
+ * regulator_mode_to_status - convert a regulator mode into a status
+ *
+ * @mode: Mode to convert
+ *
+ * Convert a regulator mode into a status.
+ */
+int regulator_mode_to_status(unsigned int mode)
+{
+ switch (mode) {
+ case REGULATOR_MODE_FAST:
+ return REGULATOR_STATUS_FAST;
+ case REGULATOR_MODE_NORMAL:
+ return REGULATOR_STATUS_NORMAL;
+ case REGULATOR_MODE_IDLE:
+ return REGULATOR_STATUS_IDLE;
+ case REGULATOR_STATUS_STANDBY:
+ return REGULATOR_STATUS_STANDBY;
+ default:
+ return 0;
+ }
+}
+EXPORT_SYMBOL_GPL(regulator_mode_to_status);
+
+/*
+ * To avoid cluttering sysfs (and memory) with useless state, only
+ * create attributes that can be meaningfully displayed.
+ */
+static int add_regulator_attributes(struct regulator_dev *rdev)
+{
+ struct device *dev = &rdev->dev;
+ struct regulator_ops *ops = rdev->desc->ops;
+ int status = 0;
+
+ /* some attributes need specific methods to be displayed */
+ if ((ops->get_voltage && ops->get_voltage(rdev) >= 0) ||
+ (ops->get_voltage_sel && ops->get_voltage_sel(rdev) >= 0)) {
+ status = device_create_file(dev, &dev_attr_microvolts);
+ if (status < 0)
+ return status;
+ }
+ if (ops->get_current_limit) {
+ status = device_create_file(dev, &dev_attr_microamps);
+ if (status < 0)
+ return status;
+ }
+ if (ops->get_mode) {
+ status = device_create_file(dev, &dev_attr_opmode);
+ if (status < 0)
+ return status;
+ }
+ if (ops->is_enabled) {
+ status = device_create_file(dev, &dev_attr_state);
+ if (status < 0)
+ return status;
+ }
+ if (ops->get_status) {
+ status = device_create_file(dev, &dev_attr_status);
+ if (status < 0)
+ return status;
+ }
+
+ /* some attributes are type-specific */
+ if (rdev->desc->type == REGULATOR_CURRENT) {
+ status = device_create_file(dev, &dev_attr_requested_microamps);
+ if (status < 0)
+ return status;
+ }
+
+ /* all the other attributes exist to support constraints;
+ * don't show them if there are no constraints, or if the
+ * relevant supporting methods are missing.
+ */
+ if (!rdev->constraints)
+ return status;
+
+ /* constraints need specific supporting methods */
+ if (ops->set_voltage || ops->set_voltage_sel) {
+ status = device_create_file(dev, &dev_attr_min_microvolts);
+ if (status < 0)
+ return status;
+ status = device_create_file(dev, &dev_attr_max_microvolts);
+ if (status < 0)
+ return status;
+ }
+ if (ops->set_current_limit) {
+ status = device_create_file(dev, &dev_attr_min_microamps);
+ if (status < 0)
+ return status;
+ status = device_create_file(dev, &dev_attr_max_microamps);
+ if (status < 0)
+ return status;
+ }
+
+ /* suspend mode constraints need multiple supporting methods */
+ if (!(ops->set_suspend_enable && ops->set_suspend_disable))
+ return status;
+
+ status = device_create_file(dev, &dev_attr_suspend_standby_state);
+ if (status < 0)
+ return status;
+ status = device_create_file(dev, &dev_attr_suspend_mem_state);
+ if (status < 0)
+ return status;
+ status = device_create_file(dev, &dev_attr_suspend_disk_state);
+ if (status < 0)
+ return status;
+
+ if (ops->set_suspend_voltage) {
+ status = device_create_file(dev,
+ &dev_attr_suspend_standby_microvolts);
+ if (status < 0)
+ return status;
+ status = device_create_file(dev,
+ &dev_attr_suspend_mem_microvolts);
+ if (status < 0)
+ return status;
+ status = device_create_file(dev,
+ &dev_attr_suspend_disk_microvolts);
+ if (status < 0)
+ return status;
+ }
+
+ if (ops->set_suspend_mode) {
+ status = device_create_file(dev,
+ &dev_attr_suspend_standby_mode);
+ if (status < 0)
+ return status;
+ status = device_create_file(dev,
+ &dev_attr_suspend_mem_mode);
+ if (status < 0)
+ return status;
+ status = device_create_file(dev,
+ &dev_attr_suspend_disk_mode);
+ if (status < 0)
+ return status;
+ }
+
+ return status;
+}
+
+static void rdev_init_debugfs(struct regulator_dev *rdev)
+{
+ rdev->debugfs = debugfs_create_dir(rdev_get_name(rdev), debugfs_root);
+ if (!rdev->debugfs) {
+ rdev_warn(rdev, "Failed to create debugfs directory\n");
+ return;
+ }
+
+ debugfs_create_u32("use_count", 0444, rdev->debugfs,
+ &rdev->use_count);
+ debugfs_create_u32("open_count", 0444, rdev->debugfs,
+ &rdev->open_count);
+}
+
+/**
+ * regulator_register - register regulator
+ * @regulator_desc: regulator to register
+ * @dev: struct device for the regulator
+ * @init_data: platform provided init data, passed through by driver
+ * @driver_data: private regulator data
+ * @of_node: OpenFirmware node to parse for device tree bindings (may be
+ * NULL).
+ *
+ * Called by regulator drivers to register a regulator.
+ * Returns 0 on success.
+ */
+struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc,
+ struct device *dev, const struct regulator_init_data *init_data,
+ void *driver_data, struct device_node *of_node)
+{
+ const struct regulation_constraints *constraints = NULL;
+ static atomic_t regulator_no = ATOMIC_INIT(0);
+ struct regulator_dev *rdev;
+ int ret, i;
+ const char *supply = NULL;
+
+ if (regulator_desc == NULL)
+ return ERR_PTR(-EINVAL);
+
+ if (regulator_desc->name == NULL || regulator_desc->ops == NULL)
+ return ERR_PTR(-EINVAL);
+
+ if (regulator_desc->type != REGULATOR_VOLTAGE &&
+ regulator_desc->type != REGULATOR_CURRENT)
+ return ERR_PTR(-EINVAL);
+
+ /* Only one of each should be implemented */
+ WARN_ON(regulator_desc->ops->get_voltage &&
+ regulator_desc->ops->get_voltage_sel);
+ WARN_ON(regulator_desc->ops->set_voltage &&
+ regulator_desc->ops->set_voltage_sel);
+
+ /* If we're using selectors we must implement list_voltage. */
+ if (regulator_desc->ops->get_voltage_sel &&
+ !regulator_desc->ops->list_voltage) {
+ return ERR_PTR(-EINVAL);
+ }
+ if (regulator_desc->ops->set_voltage_sel &&
+ !regulator_desc->ops->list_voltage) {
+ return ERR_PTR(-EINVAL);
+ }
+
+ rdev = kzalloc(sizeof(struct regulator_dev), GFP_KERNEL);
+ if (rdev == NULL)
+ return ERR_PTR(-ENOMEM);
+
+ mutex_lock(®ulator_list_mutex);
+
+ mutex_init(&rdev->mutex);
+ rdev->reg_data = driver_data;
+ rdev->owner = regulator_desc->owner;
+ rdev->desc = regulator_desc;
+ INIT_LIST_HEAD(&rdev->consumer_list);
+ INIT_LIST_HEAD(&rdev->list);
+ BLOCKING_INIT_NOTIFIER_HEAD(&rdev->notifier);
+ INIT_DELAYED_WORK(&rdev->disable_work, regulator_disable_work);
+
+ /* preform any regulator specific init */
+ if (init_data && init_data->regulator_init) {
+ ret = init_data->regulator_init(rdev->reg_data);
+ if (ret < 0)
+ goto clean;
+ }
+
+ /* register with sysfs */
+ rdev->dev.class = ®ulator_class;
+ rdev->dev.of_node = of_node;
+ rdev->dev.parent = dev;
+ dev_set_name(&rdev->dev, "regulator.%d",
+ atomic_inc_return(®ulator_no) - 1);
+ ret = device_register(&rdev->dev);
+ if (ret != 0) {
+ put_device(&rdev->dev);
+ goto clean;
+ }
+
+ dev_set_drvdata(&rdev->dev, rdev);
+
+ /* set regulator constraints */
+ if (init_data)
+ constraints = &init_data->constraints;
+
+ ret = set_machine_constraints(rdev, constraints);
+ if (ret < 0)
+ goto scrub;
+
+ /* add attributes supported by this regulator */
+ ret = add_regulator_attributes(rdev);
+ if (ret < 0)
+ goto scrub;
+
+ if (init_data && init_data->supply_regulator)
+ supply = init_data->supply_regulator;
+ else if (regulator_desc->supply_name)
+ supply = regulator_desc->supply_name;
+
+ if (supply) {
+ struct regulator_dev *r;
+
+ r = regulator_dev_lookup(dev, supply);
+
+ if (!r) {
+ dev_err(dev, "Failed to find supply %s\n", supply);
+ ret = -EPROBE_DEFER;
+ goto scrub;
+ }
+
+ ret = set_supply(rdev, r);
+ if (ret < 0)
+ goto scrub;
+
+ /* Enable supply if rail is enabled */
+ if (rdev->desc->ops->is_enabled &&
+ rdev->desc->ops->is_enabled(rdev)) {
+ ret = regulator_enable(rdev->supply);
+ if (ret < 0)
+ goto scrub;
+ }
+ }
+
+ /* add consumers devices */
+ if (init_data) {
+ for (i = 0; i < init_data->num_consumer_supplies; i++) {
+ ret = set_consumer_device_supply(rdev,
+ init_data->consumer_supplies[i].dev_name,
+ init_data->consumer_supplies[i].supply);
+ if (ret < 0) {
+ dev_err(dev, "Failed to set supply %s\n",
+ init_data->consumer_supplies[i].supply);
+ goto unset_supplies;
+ }
+ }
+ }
+
+ list_add(&rdev->list, ®ulator_list);
+
+ rdev_init_debugfs(rdev);
+out:
+ mutex_unlock(®ulator_list_mutex);
+ return rdev;
+
+unset_supplies:
+ unset_regulator_supplies(rdev);
+
+scrub:
+ if (rdev->supply)
+ regulator_put(rdev->supply);
+ kfree(rdev->constraints);
+ device_unregister(&rdev->dev);
+ /* device core frees rdev */
+ rdev = ERR_PTR(ret);
+ goto out;
+
+clean:
+ kfree(rdev);
+ rdev = ERR_PTR(ret);
+ goto out;
+}
+EXPORT_SYMBOL_GPL(regulator_register);
+
+/**
+ * regulator_unregister - unregister regulator
+ * @rdev: regulator to unregister
+ *
+ * Called by regulator drivers to unregister a regulator.
+ */
+void regulator_unregister(struct regulator_dev *rdev)
+{
+ if (rdev == NULL)
+ return;
+
+ if (rdev->supply)
+ regulator_put(rdev->supply);
+ mutex_lock(®ulator_list_mutex);
+ debugfs_remove_recursive(rdev->debugfs);
+ flush_work_sync(&rdev->disable_work.work);
+ WARN_ON(rdev->open_count);
+ unset_regulator_supplies(rdev);
+ list_del(&rdev->list);
+ kfree(rdev->constraints);
+ device_unregister(&rdev->dev);
+ mutex_unlock(®ulator_list_mutex);
+}
+EXPORT_SYMBOL_GPL(regulator_unregister);
+
+/**
+ * regulator_suspend_prepare - prepare regulators for system wide suspend
+ * @state: system suspend state
+ *
+ * Configure each regulator with it's suspend operating parameters for state.
+ * This will usually be called by machine suspend code prior to supending.
+ */
+int regulator_suspend_prepare(suspend_state_t state)
+{
+ struct regulator_dev *rdev;
+ int ret = 0;
+
+ /* ON is handled by regulator active state */
+ if (state == PM_SUSPEND_ON)
+ return -EINVAL;
+
+ mutex_lock(®ulator_list_mutex);
+ list_for_each_entry(rdev, ®ulator_list, list) {
+
+ mutex_lock(&rdev->mutex);
+ ret = suspend_prepare(rdev, state);
+ mutex_unlock(&rdev->mutex);
+
+ if (ret < 0) {
+ rdev_err(rdev, "failed to prepare\n");
+ goto out;
+ }
+ }
+out:
+ mutex_unlock(®ulator_list_mutex);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_suspend_prepare);
+
+/**
+ * regulator_suspend_finish - resume regulators from system wide suspend
+ *
+ * Turn on regulators that might be turned off by regulator_suspend_prepare
+ * and that should be turned on according to the regulators properties.
+ */
+int regulator_suspend_finish(void)
+{
+ struct regulator_dev *rdev;
+ int ret = 0, error;
+
+ mutex_lock(®ulator_list_mutex);
+ list_for_each_entry(rdev, ®ulator_list, list) {
+ struct regulator_ops *ops = rdev->desc->ops;
+
+ mutex_lock(&rdev->mutex);
+ if ((rdev->use_count > 0 || rdev->constraints->always_on) &&
+ ops->enable) {
+ error = ops->enable(rdev);
+ if (error)
+ ret = error;
+ } else {
+ if (!has_full_constraints)
+ goto unlock;
+ if (!ops->disable)
+ goto unlock;
+ if (ops->is_enabled && !ops->is_enabled(rdev))
+ goto unlock;
+
+ error = ops->disable(rdev);
+ if (error)
+ ret = error;
+ }
+unlock:
+ mutex_unlock(&rdev->mutex);
+ }
+ mutex_unlock(®ulator_list_mutex);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_suspend_finish);
+
+/**
+ * regulator_has_full_constraints - the system has fully specified constraints
+ *
+ * Calling this function will cause the regulator API to disable all
+ * regulators which have a zero use count and don't have an always_on
+ * constraint in a late_initcall.
+ *
+ * The intention is that this will become the default behaviour in a
+ * future kernel release so users are encouraged to use this facility
+ * now.
+ */
+void regulator_has_full_constraints(void)
+{
+ has_full_constraints = 1;
+}
+EXPORT_SYMBOL_GPL(regulator_has_full_constraints);
+
+/**
+ * regulator_use_dummy_regulator - Provide a dummy regulator when none is found
+ *
+ * Calling this function will cause the regulator API to provide a
+ * dummy regulator to consumers if no physical regulator is found,
+ * allowing most consumers to proceed as though a regulator were
+ * configured. This allows systems such as those with software
+ * controllable regulators for the CPU core only to be brought up more
+ * readily.
+ */
+void regulator_use_dummy_regulator(void)
+{
+ board_wants_dummy_regulator = true;
+}
+EXPORT_SYMBOL_GPL(regulator_use_dummy_regulator);
+
+/**
+ * rdev_get_drvdata - get rdev regulator driver data
+ * @rdev: regulator
+ *
+ * Get rdev regulator driver private data. This call can be used in the
+ * regulator driver context.
+ */
+void *rdev_get_drvdata(struct regulator_dev *rdev)
+{
+ return rdev->reg_data;
+}
+EXPORT_SYMBOL_GPL(rdev_get_drvdata);
+
+/**
+ * regulator_get_drvdata - get regulator driver data
+ * @regulator: regulator
+ *
+ * Get regulator driver private data. This call can be used in the consumer
+ * driver context when non API regulator specific functions need to be called.
+ */
+void *regulator_get_drvdata(struct regulator *regulator)
+{
+ return regulator->rdev->reg_data;
+}
+EXPORT_SYMBOL_GPL(regulator_get_drvdata);
+
+/**
+ * regulator_set_drvdata - set regulator driver data
+ * @regulator: regulator
+ * @data: data
+ */
+void regulator_set_drvdata(struct regulator *regulator, void *data)
+{
+ regulator->rdev->reg_data = data;
+}
+EXPORT_SYMBOL_GPL(regulator_set_drvdata);
+
+/**
+ * regulator_get_id - get regulator ID
+ * @rdev: regulator
+ */
+int rdev_get_id(struct regulator_dev *rdev)
+{
+ return rdev->desc->id;
+}
+EXPORT_SYMBOL_GPL(rdev_get_id);
+
+struct device *rdev_get_dev(struct regulator_dev *rdev)
+{
+ return &rdev->dev;
+}
+EXPORT_SYMBOL_GPL(rdev_get_dev);
+
+void *regulator_get_init_drvdata(struct regulator_init_data *reg_init_data)
+{
+ return reg_init_data->driver_data;
+}
+EXPORT_SYMBOL_GPL(regulator_get_init_drvdata);
+
+#ifdef CONFIG_DEBUG_FS
+static ssize_t supply_map_read_file(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+ ssize_t len, ret = 0;
+ struct regulator_map *map;
+
+ if (!buf)
+ return -ENOMEM;
+
+ list_for_each_entry(map, ®ulator_map_list, list) {
+ len = snprintf(buf + ret, PAGE_SIZE - ret,
+ "%s -> %s.%s\n",
+ rdev_get_name(map->regulator), map->dev_name,
+ map->supply);
+ if (len >= 0)
+ ret += len;
+ if (ret > PAGE_SIZE) {
+ ret = PAGE_SIZE;
+ break;
+ }
+ }
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
+
+ kfree(buf);
+
+ return ret;
+}
+#endif
+
+static const struct file_operations supply_map_fops = {
+#ifdef CONFIG_DEBUG_FS
+ .read = supply_map_read_file,
+ .llseek = default_llseek,
+#endif
+};
+
+static int __init regulator_init(void)
+{
+ int ret;
+
+ ret = class_register(®ulator_class);
+
+ debugfs_root = debugfs_create_dir("regulator", NULL);
+ if (!debugfs_root)
+ pr_warn("regulator: Failed to create debugfs directory\n");
+
+ debugfs_create_file("supply_map", 0444, debugfs_root, NULL,
+ &supply_map_fops);
+
+ regulator_dummy_init();
+
+ return ret;
+}
+
+/* init early to allow our consumers to complete system booting */
+core_initcall(regulator_init);
+
+static int __init regulator_init_complete(void)
+{
+ struct regulator_dev *rdev;
+ struct regulator_ops *ops;
+ struct regulation_constraints *c;
+ int enabled, ret;
+
+ mutex_lock(®ulator_list_mutex);
+
+ /* If we have a full configuration then disable any regulators
+ * which are not in use or always_on. This will become the
+ * default behaviour in the future.
+ */
+ list_for_each_entry(rdev, ®ulator_list, list) {
+ ops = rdev->desc->ops;
+ c = rdev->constraints;
+
+ if (!ops->disable || (c && c->always_on))
+ continue;
+
+ mutex_lock(&rdev->mutex);
+
+ if (rdev->use_count)
+ goto unlock;
+
+ /* If we can't read the status assume it's on. */
+ if (ops->is_enabled)
+ enabled = ops->is_enabled(rdev);
+ else
+ enabled = 1;
+
+ if (!enabled)
+ goto unlock;
+
+ if (has_full_constraints) {
+ /* We log since this may kill the system if it
+ * goes wrong. */
+ rdev_info(rdev, "disabling\n");
+ ret = ops->disable(rdev);
+ if (ret != 0) {
+ rdev_err(rdev, "couldn't disable: %d\n", ret);
+ }
+ } else {
+ /* The intention is that in future we will
+ * assume that full constraints are provided
+ * so warn even if we aren't going to do
+ * anything here.
+ */
+ rdev_warn(rdev, "incomplete constraints, leaving on\n");
+ }
+
+unlock:
+ mutex_unlock(&rdev->mutex);
+ }
+
+ mutex_unlock(®ulator_list_mutex);
+
+ return 0;
+}
+late_initcall(regulator_init_complete);
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/da903x.c b/ap/os/linux/linux-3.4.x/drivers/regulator/da903x.c
new file mode 100644
index 0000000..1851f09
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/da903x.c
@@ -0,0 +1,584 @@
+/*
+ * Regulators driver for Dialog Semiconductor DA903x
+ *
+ * Copyright (C) 2006-2008 Marvell International Ltd.
+ * Copyright (C) 2008 Compulab Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/da903x.h>
+
+/* DA9030 Registers */
+#define DA9030_INVAL (-1)
+#define DA9030_LDO1011 (0x10)
+#define DA9030_LDO15 (0x11)
+#define DA9030_LDO1416 (0x12)
+#define DA9030_LDO1819 (0x13)
+#define DA9030_LDO17 (0x14)
+#define DA9030_BUCK2DVM1 (0x15)
+#define DA9030_BUCK2DVM2 (0x16)
+#define DA9030_RCTL11 (0x17)
+#define DA9030_RCTL21 (0x18)
+#define DA9030_LDO1 (0x90)
+#define DA9030_LDO23 (0x91)
+#define DA9030_LDO45 (0x92)
+#define DA9030_LDO6 (0x93)
+#define DA9030_LDO78 (0x94)
+#define DA9030_LDO912 (0x95)
+#define DA9030_BUCK (0x96)
+#define DA9030_RCTL12 (0x97)
+#define DA9030_RCTL22 (0x98)
+#define DA9030_LDO_UNLOCK (0xa0)
+#define DA9030_LDO_UNLOCK_MASK (0xe0)
+#define DA9034_OVER1 (0x10)
+
+/* DA9034 Registers */
+#define DA9034_INVAL (-1)
+#define DA9034_OVER2 (0x11)
+#define DA9034_OVER3 (0x12)
+#define DA9034_LDO643 (0x13)
+#define DA9034_LDO987 (0x14)
+#define DA9034_LDO1110 (0x15)
+#define DA9034_LDO1312 (0x16)
+#define DA9034_LDO1514 (0x17)
+#define DA9034_VCC1 (0x20)
+#define DA9034_ADTV1 (0x23)
+#define DA9034_ADTV2 (0x24)
+#define DA9034_AVRC (0x25)
+#define DA9034_CDTV1 (0x26)
+#define DA9034_CDTV2 (0x27)
+#define DA9034_CVRC (0x28)
+#define DA9034_SDTV1 (0x29)
+#define DA9034_SDTV2 (0x2a)
+#define DA9034_SVRC (0x2b)
+#define DA9034_MDTV1 (0x32)
+#define DA9034_MDTV2 (0x33)
+#define DA9034_MVRC (0x34)
+
+/* DA9035 Registers. DA9034 Registers are comptabile to DA9035. */
+#define DA9035_OVER3 (0x12)
+#define DA9035_VCC2 (0x1f)
+#define DA9035_3DTV1 (0x2c)
+#define DA9035_3DTV2 (0x2d)
+#define DA9035_3VRC (0x2e)
+#define DA9035_AUTOSKIP (0x2f)
+
+struct da903x_regulator_info {
+ struct regulator_desc desc;
+
+ int min_uV;
+ int max_uV;
+ int step_uV;
+ int vol_reg;
+ int vol_shift;
+ int vol_nbits;
+ int update_reg;
+ int update_bit;
+ int enable_reg;
+ int enable_bit;
+};
+
+static int da9034_ldo12_data[] = { 1700, 1750, 1800, 1850, 1900, 1950,
+ 2000, 2050, 2700, 2750, 2800, 2850,
+ 2900, 2950, 3000, 3050 };
+
+static inline struct device *to_da903x_dev(struct regulator_dev *rdev)
+{
+ return rdev_get_dev(rdev)->parent->parent;
+}
+
+static inline int check_range(struct da903x_regulator_info *info,
+ int min_uV, int max_uV)
+{
+ if (min_uV < info->min_uV || min_uV > info->max_uV)
+ return -EINVAL;
+
+ return 0;
+}
+
+/* DA9030/DA9034 common operations */
+static int da903x_set_ldo_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
+ struct device *da9034_dev = to_da903x_dev(rdev);
+ uint8_t val, mask;
+
+ if (check_range(info, min_uV, max_uV)) {
+ pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
+ return -EINVAL;
+ }
+
+ val = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
+ *selector = val;
+ val <<= info->vol_shift;
+ mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
+
+ return da903x_update(da9034_dev, info->vol_reg, val, mask);
+}
+
+static int da903x_get_voltage(struct regulator_dev *rdev)
+{
+ struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
+ struct device *da9034_dev = to_da903x_dev(rdev);
+ uint8_t val, mask;
+ int ret;
+
+ ret = da903x_read(da9034_dev, info->vol_reg, &val);
+ if (ret)
+ return ret;
+
+ mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
+ val = (val & mask) >> info->vol_shift;
+
+ return info->min_uV + info->step_uV * val;
+}
+
+static int da903x_enable(struct regulator_dev *rdev)
+{
+ struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
+ struct device *da9034_dev = to_da903x_dev(rdev);
+
+ return da903x_set_bits(da9034_dev, info->enable_reg,
+ 1 << info->enable_bit);
+}
+
+static int da903x_disable(struct regulator_dev *rdev)
+{
+ struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
+ struct device *da9034_dev = to_da903x_dev(rdev);
+
+ return da903x_clr_bits(da9034_dev, info->enable_reg,
+ 1 << info->enable_bit);
+}
+
+static int da903x_is_enabled(struct regulator_dev *rdev)
+{
+ struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
+ struct device *da9034_dev = to_da903x_dev(rdev);
+ uint8_t reg_val;
+ int ret;
+
+ ret = da903x_read(da9034_dev, info->enable_reg, ®_val);
+ if (ret)
+ return ret;
+
+ return !!(reg_val & (1 << info->enable_bit));
+}
+
+static int da903x_list_voltage(struct regulator_dev *rdev, unsigned selector)
+{
+ struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
+ int ret;
+
+ ret = info->min_uV + info->step_uV * selector;
+ if (ret > info->max_uV)
+ return -EINVAL;
+ return ret;
+}
+
+/* DA9030 specific operations */
+static int da9030_set_ldo1_15_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV,
+ unsigned *selector)
+{
+ struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
+ struct device *da903x_dev = to_da903x_dev(rdev);
+ uint8_t val, mask;
+ int ret;
+
+ if (check_range(info, min_uV, max_uV)) {
+ pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
+ return -EINVAL;
+ }
+
+ val = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
+ *selector = val;
+ val <<= info->vol_shift;
+ mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
+ val |= DA9030_LDO_UNLOCK; /* have to set UNLOCK bits */
+ mask |= DA9030_LDO_UNLOCK_MASK;
+
+ /* write twice */
+ ret = da903x_update(da903x_dev, info->vol_reg, val, mask);
+ if (ret)
+ return ret;
+
+ return da903x_update(da903x_dev, info->vol_reg, val, mask);
+}
+
+static int da9030_set_ldo14_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV,
+ unsigned *selector)
+{
+ struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
+ struct device *da903x_dev = to_da903x_dev(rdev);
+ uint8_t val, mask;
+ int thresh;
+
+ if (check_range(info, min_uV, max_uV)) {
+ pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
+ return -EINVAL;
+ }
+
+ thresh = (info->max_uV + info->min_uV) / 2;
+ if (min_uV < thresh) {
+ val = DIV_ROUND_UP(thresh - min_uV, info->step_uV);
+ val |= 0x4;
+ } else {
+ val = DIV_ROUND_UP(min_uV - thresh, info->step_uV);
+ }
+
+ *selector = val;
+ val <<= info->vol_shift;
+ mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
+
+ return da903x_update(da903x_dev, info->vol_reg, val, mask);
+}
+
+static int da9030_get_ldo14_voltage(struct regulator_dev *rdev)
+{
+ struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
+ struct device *da903x_dev = to_da903x_dev(rdev);
+ uint8_t val, mask;
+ int ret;
+
+ ret = da903x_read(da903x_dev, info->vol_reg, &val);
+ if (ret)
+ return ret;
+
+ mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
+ val = (val & mask) >> info->vol_shift;
+
+ if (val & 0x4)
+ return info->min_uV + info->step_uV * (3 - (val & ~0x4));
+ else
+ return (info->max_uV + info->min_uV) / 2 +
+ info->step_uV * (val & ~0x4);
+}
+
+/* DA9034 specific operations */
+static int da9034_set_dvc_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
+ struct device *da9034_dev = to_da903x_dev(rdev);
+ uint8_t val, mask;
+ int ret;
+
+ if (check_range(info, min_uV, max_uV)) {
+ pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
+ return -EINVAL;
+ }
+
+ val = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
+ *selector = val;
+ val <<= info->vol_shift;
+ mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
+
+ ret = da903x_update(da9034_dev, info->vol_reg, val, mask);
+ if (ret)
+ return ret;
+
+ ret = da903x_set_bits(da9034_dev, info->update_reg,
+ 1 << info->update_bit);
+ return ret;
+}
+
+static int da9034_set_ldo12_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
+ struct device *da9034_dev = to_da903x_dev(rdev);
+ uint8_t val, mask;
+
+ if (check_range(info, min_uV, max_uV)) {
+ pr_err("invalid voltage range (%d, %d) uV\n", min_uV, max_uV);
+ return -EINVAL;
+ }
+
+ val = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
+ val = (val >= 20) ? val - 12 : ((val > 7) ? 8 : val);
+ *selector = val;
+ val <<= info->vol_shift;
+ mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
+
+ return da903x_update(da9034_dev, info->vol_reg, val, mask);
+}
+
+static int da9034_get_ldo12_voltage(struct regulator_dev *rdev)
+{
+ struct da903x_regulator_info *info = rdev_get_drvdata(rdev);
+ struct device *da9034_dev = to_da903x_dev(rdev);
+ uint8_t val, mask;
+ int ret;
+
+ ret = da903x_read(da9034_dev, info->vol_reg, &val);
+ if (ret)
+ return ret;
+
+ mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
+ val = (val & mask) >> info->vol_shift;
+
+ if (val >= 8)
+ return 2700000 + info->step_uV * (val - 8);
+
+ return info->min_uV + info->step_uV * val;
+}
+
+static int da9034_list_ldo12_voltage(struct regulator_dev *rdev,
+ unsigned selector)
+{
+ if (selector >= ARRAY_SIZE(da9034_ldo12_data))
+ return -EINVAL;
+ return da9034_ldo12_data[selector] * 1000;
+}
+
+static struct regulator_ops da903x_regulator_ldo_ops = {
+ .set_voltage = da903x_set_ldo_voltage,
+ .get_voltage = da903x_get_voltage,
+ .list_voltage = da903x_list_voltage,
+ .enable = da903x_enable,
+ .disable = da903x_disable,
+ .is_enabled = da903x_is_enabled,
+};
+
+/* NOTE: this is dedicated for the insane DA9030 LDO14 */
+static struct regulator_ops da9030_regulator_ldo14_ops = {
+ .set_voltage = da9030_set_ldo14_voltage,
+ .get_voltage = da9030_get_ldo14_voltage,
+ .list_voltage = da903x_list_voltage,
+ .enable = da903x_enable,
+ .disable = da903x_disable,
+ .is_enabled = da903x_is_enabled,
+};
+
+/* NOTE: this is dedicated for the DA9030 LDO1 and LDO15 that have locks */
+static struct regulator_ops da9030_regulator_ldo1_15_ops = {
+ .set_voltage = da9030_set_ldo1_15_voltage,
+ .get_voltage = da903x_get_voltage,
+ .list_voltage = da903x_list_voltage,
+ .enable = da903x_enable,
+ .disable = da903x_disable,
+ .is_enabled = da903x_is_enabled,
+};
+
+static struct regulator_ops da9034_regulator_dvc_ops = {
+ .set_voltage = da9034_set_dvc_voltage,
+ .get_voltage = da903x_get_voltage,
+ .list_voltage = da903x_list_voltage,
+ .enable = da903x_enable,
+ .disable = da903x_disable,
+ .is_enabled = da903x_is_enabled,
+};
+
+/* NOTE: this is dedicated for the insane LDO12 */
+static struct regulator_ops da9034_regulator_ldo12_ops = {
+ .set_voltage = da9034_set_ldo12_voltage,
+ .get_voltage = da9034_get_ldo12_voltage,
+ .list_voltage = da9034_list_ldo12_voltage,
+ .enable = da903x_enable,
+ .disable = da903x_disable,
+ .is_enabled = da903x_is_enabled,
+};
+
+#define DA903x_LDO(_pmic, _id, min, max, step, vreg, shift, nbits, ereg, ebit) \
+{ \
+ .desc = { \
+ .name = "LDO" #_id, \
+ .ops = &da903x_regulator_ldo_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = _pmic##_ID_LDO##_id, \
+ .n_voltages = (step) ? ((max - min) / step + 1) : 1, \
+ .owner = THIS_MODULE, \
+ }, \
+ .min_uV = (min) * 1000, \
+ .max_uV = (max) * 1000, \
+ .step_uV = (step) * 1000, \
+ .vol_reg = _pmic##_##vreg, \
+ .vol_shift = (shift), \
+ .vol_nbits = (nbits), \
+ .enable_reg = _pmic##_##ereg, \
+ .enable_bit = (ebit), \
+}
+
+#define DA903x_DVC(_pmic, _id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
+{ \
+ .desc = { \
+ .name = #_id, \
+ .ops = &da9034_regulator_dvc_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = _pmic##_ID_##_id, \
+ .n_voltages = (step) ? ((max - min) / step + 1) : 1, \
+ .owner = THIS_MODULE, \
+ }, \
+ .min_uV = (min) * 1000, \
+ .max_uV = (max) * 1000, \
+ .step_uV = (step) * 1000, \
+ .vol_reg = _pmic##_##vreg, \
+ .vol_shift = (0), \
+ .vol_nbits = (nbits), \
+ .update_reg = _pmic##_##ureg, \
+ .update_bit = (ubit), \
+ .enable_reg = _pmic##_##ereg, \
+ .enable_bit = (ebit), \
+}
+
+#define DA9034_LDO(_id, min, max, step, vreg, shift, nbits, ereg, ebit) \
+ DA903x_LDO(DA9034, _id, min, max, step, vreg, shift, nbits, ereg, ebit)
+
+#define DA9030_LDO(_id, min, max, step, vreg, shift, nbits, ereg, ebit) \
+ DA903x_LDO(DA9030, _id, min, max, step, vreg, shift, nbits, ereg, ebit)
+
+#define DA9030_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
+ DA903x_DVC(DA9030, _id, min, max, step, vreg, nbits, ureg, ubit, \
+ ereg, ebit)
+
+#define DA9034_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
+ DA903x_DVC(DA9034, _id, min, max, step, vreg, nbits, ureg, ubit, \
+ ereg, ebit)
+
+#define DA9035_DVC(_id, min, max, step, vreg, nbits, ureg, ubit, ereg, ebit) \
+ DA903x_DVC(DA9035, _id, min, max, step, vreg, nbits, ureg, ubit, \
+ ereg, ebit)
+
+static struct da903x_regulator_info da903x_regulator_info[] = {
+ /* DA9030 */
+ DA9030_DVC(BUCK2, 850, 1625, 25, BUCK2DVM1, 5, BUCK2DVM1, 7, RCTL11, 0),
+
+ DA9030_LDO( 1, 1200, 3200, 100, LDO1, 0, 5, RCTL12, 1),
+ DA9030_LDO( 2, 1800, 3200, 100, LDO23, 0, 4, RCTL12, 2),
+ DA9030_LDO( 3, 1800, 3200, 100, LDO23, 4, 4, RCTL12, 3),
+ DA9030_LDO( 4, 1800, 3200, 100, LDO45, 0, 4, RCTL12, 4),
+ DA9030_LDO( 5, 1800, 3200, 100, LDO45, 4, 4, RCTL12, 5),
+ DA9030_LDO( 6, 1800, 3200, 100, LDO6, 0, 4, RCTL12, 6),
+ DA9030_LDO( 7, 1800, 3200, 100, LDO78, 0, 4, RCTL12, 7),
+ DA9030_LDO( 8, 1800, 3200, 100, LDO78, 4, 4, RCTL22, 0),
+ DA9030_LDO( 9, 1800, 3200, 100, LDO912, 0, 4, RCTL22, 1),
+ DA9030_LDO(10, 1800, 3200, 100, LDO1011, 0, 4, RCTL22, 2),
+ DA9030_LDO(11, 1800, 3200, 100, LDO1011, 4, 4, RCTL22, 3),
+ DA9030_LDO(12, 1800, 3200, 100, LDO912, 4, 4, RCTL22, 4),
+ DA9030_LDO(14, 2760, 2940, 30, LDO1416, 0, 3, RCTL11, 4),
+ DA9030_LDO(15, 1100, 2650, 50, LDO15, 0, 5, RCTL11, 5),
+ DA9030_LDO(16, 1100, 2650, 50, LDO1416, 3, 5, RCTL11, 6),
+ DA9030_LDO(17, 1800, 3200, 100, LDO17, 0, 4, RCTL11, 7),
+ DA9030_LDO(18, 1800, 3200, 100, LDO1819, 0, 4, RCTL21, 2),
+ DA9030_LDO(19, 1800, 3200, 100, LDO1819, 4, 4, RCTL21, 1),
+ DA9030_LDO(13, 2100, 2100, 0, INVAL, 0, 0, RCTL11, 3), /* fixed @2.1V */
+
+ /* DA9034 */
+ DA9034_DVC(BUCK1, 725, 1500, 25, ADTV2, 5, VCC1, 0, OVER1, 0),
+ DA9034_DVC(BUCK2, 725, 1500, 25, CDTV2, 5, VCC1, 2, OVER1, 1),
+ DA9034_DVC(LDO2, 725, 1500, 25, SDTV2, 5, VCC1, 4, OVER1, 2),
+ DA9034_DVC(LDO1, 1700, 2075, 25, MDTV1, 4, VCC1, 6, OVER3, 4),
+
+ DA9034_LDO( 3, 1800, 3300, 100, LDO643, 0, 4, OVER3, 5),
+ DA9034_LDO( 4, 1800, 2900,1100, LDO643, 4, 1, OVER3, 6),
+ DA9034_LDO( 6, 2500, 2850, 50, LDO643, 5, 3, OVER2, 0),
+ DA9034_LDO( 7, 2700, 3050, 50, LDO987, 0, 3, OVER2, 1),
+ DA9034_LDO( 8, 2700, 2850, 50, LDO987, 3, 2, OVER2, 2),
+ DA9034_LDO( 9, 2700, 3050, 50, LDO987, 5, 3, OVER2, 3),
+ DA9034_LDO(10, 2700, 3050, 50, LDO1110, 0, 3, OVER2, 4),
+ DA9034_LDO(11, 1800, 3300, 100, LDO1110, 4, 4, OVER2, 5),
+ DA9034_LDO(12, 1700, 3050, 50, LDO1312, 0, 4, OVER3, 6),
+ DA9034_LDO(13, 1800, 3300, 100, LDO1312, 4, 4, OVER2, 7),
+ DA9034_LDO(14, 1800, 3300, 100, LDO1514, 0, 4, OVER3, 0),
+ DA9034_LDO(15, 1800, 3300, 100, LDO1514, 4, 4, OVER3, 1),
+ DA9034_LDO(5, 3100, 3100, 0, INVAL, 0, 0, OVER3, 7), /* fixed @3.1V */
+
+ /* DA9035 */
+ DA9035_DVC(BUCK3, 1800, 2200, 100, 3DTV1, 3, VCC2, 0, OVER3, 3),
+};
+
+static inline struct da903x_regulator_info *find_regulator_info(int id)
+{
+ struct da903x_regulator_info *ri;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(da903x_regulator_info); i++) {
+ ri = &da903x_regulator_info[i];
+ if (ri->desc.id == id)
+ return ri;
+ }
+ return NULL;
+}
+
+static int __devinit da903x_regulator_probe(struct platform_device *pdev)
+{
+ struct da903x_regulator_info *ri = NULL;
+ struct regulator_dev *rdev;
+
+ ri = find_regulator_info(pdev->id);
+ if (ri == NULL) {
+ dev_err(&pdev->dev, "invalid regulator ID specified\n");
+ return -EINVAL;
+ }
+
+ /* Workaround for the weird LDO12 voltage setting */
+ if (ri->desc.id == DA9034_ID_LDO12) {
+ ri->desc.ops = &da9034_regulator_ldo12_ops;
+ ri->desc.n_voltages = ARRAY_SIZE(da9034_ldo12_data);
+ }
+
+ if (ri->desc.id == DA9030_ID_LDO14)
+ ri->desc.ops = &da9030_regulator_ldo14_ops;
+
+ if (ri->desc.id == DA9030_ID_LDO1 || ri->desc.id == DA9030_ID_LDO15)
+ ri->desc.ops = &da9030_regulator_ldo1_15_ops;
+
+ rdev = regulator_register(&ri->desc, &pdev->dev,
+ pdev->dev.platform_data, ri, NULL);
+ if (IS_ERR(rdev)) {
+ dev_err(&pdev->dev, "failed to register regulator %s\n",
+ ri->desc.name);
+ return PTR_ERR(rdev);
+ }
+
+ platform_set_drvdata(pdev, rdev);
+ return 0;
+}
+
+static int __devexit da903x_regulator_remove(struct platform_device *pdev)
+{
+ struct regulator_dev *rdev = platform_get_drvdata(pdev);
+
+ regulator_unregister(rdev);
+ return 0;
+}
+
+static struct platform_driver da903x_regulator_driver = {
+ .driver = {
+ .name = "da903x-regulator",
+ .owner = THIS_MODULE,
+ },
+ .probe = da903x_regulator_probe,
+ .remove = __devexit_p(da903x_regulator_remove),
+};
+
+static int __init da903x_regulator_init(void)
+{
+ return platform_driver_register(&da903x_regulator_driver);
+}
+subsys_initcall(da903x_regulator_init);
+
+static void __exit da903x_regulator_exit(void)
+{
+ platform_driver_unregister(&da903x_regulator_driver);
+}
+module_exit(da903x_regulator_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>"
+ "Mike Rapoport <mike@compulab.co.il>");
+MODULE_DESCRIPTION("Regulator Driver for Dialog Semiconductor DA903X PMIC");
+MODULE_ALIAS("platform:da903x-regulator");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/da9052-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/da9052-regulator.c
new file mode 100644
index 0000000..09915e8
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/da9052-regulator.c
@@ -0,0 +1,610 @@
+/*
+* da9052-regulator.c: Regulator driver for DA9052
+*
+* Copyright(c) 2011 Dialog Semiconductor Ltd.
+*
+* Author: David Dajun Chen <dchen@diasemi.com>
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation; either version 2 of the License, or
+* (at your option) any later version.
+*
+*/
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+
+#include <linux/mfd/da9052/da9052.h>
+#include <linux/mfd/da9052/reg.h>
+#include <linux/mfd/da9052/pdata.h>
+
+/* Buck step size */
+#define DA9052_BUCK_PERI_3uV_STEP 100000
+#define DA9052_BUCK_PERI_REG_MAP_UPTO_3uV 24
+#define DA9052_CONST_3uV 3000000
+
+#define DA9052_MIN_UA 0
+#define DA9052_MAX_UA 3
+#define DA9052_CURRENT_RANGE 4
+
+/* Bit masks */
+#define DA9052_BUCK_ILIM_MASK_EVEN 0x0c
+#define DA9052_BUCK_ILIM_MASK_ODD 0xc0
+
+static const u32 da9052_current_limits[3][4] = {
+ {700000, 800000, 1000000, 1200000}, /* DA9052-BC BUCKs */
+ {1600000, 2000000, 2400000, 3000000}, /* DA9053-AA/Bx BUCK-CORE */
+ {800000, 1000000, 1200000, 1500000}, /* DA9053-AA/Bx BUCK-PRO,
+ * BUCK-MEM and BUCK-PERI
+ */
+};
+
+struct da9052_regulator_info {
+ struct regulator_desc reg_desc;
+ int step_uV;
+ int min_uV;
+ int max_uV;
+ unsigned char volt_shift;
+ unsigned char en_bit;
+ unsigned char activate_bit;
+};
+
+struct da9052_regulator {
+ struct da9052 *da9052;
+ struct da9052_regulator_info *info;
+ struct regulator_dev *rdev;
+};
+
+static int verify_range(struct da9052_regulator_info *info,
+ int min_uV, int max_uV)
+{
+ if (min_uV > info->max_uV || max_uV < info->min_uV)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int da9052_regulator_enable(struct regulator_dev *rdev)
+{
+ struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9052_regulator_info *info = regulator->info;
+ int offset = rdev_get_id(rdev);
+
+ return da9052_reg_update(regulator->da9052,
+ DA9052_BUCKCORE_REG + offset,
+ 1 << info->en_bit, 1 << info->en_bit);
+}
+
+static int da9052_regulator_disable(struct regulator_dev *rdev)
+{
+ struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9052_regulator_info *info = regulator->info;
+ int offset = rdev_get_id(rdev);
+
+ return da9052_reg_update(regulator->da9052,
+ DA9052_BUCKCORE_REG + offset,
+ 1 << info->en_bit, 0);
+}
+
+static int da9052_regulator_is_enabled(struct regulator_dev *rdev)
+{
+ struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9052_regulator_info *info = regulator->info;
+ int offset = rdev_get_id(rdev);
+ int ret;
+
+ ret = da9052_reg_read(regulator->da9052, DA9052_BUCKCORE_REG + offset);
+ if (ret < 0)
+ return ret;
+
+ return ret & (1 << info->en_bit);
+}
+
+static int da9052_dcdc_get_current_limit(struct regulator_dev *rdev)
+{
+ struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+ int offset = rdev_get_id(rdev);
+ int ret, row = 2;
+
+ ret = da9052_reg_read(regulator->da9052, DA9052_BUCKA_REG + offset/2);
+ if (ret < 0)
+ return ret;
+
+ /* Determine the even or odd position of the buck current limit
+ * register field
+ */
+ if (offset % 2 == 0)
+ ret = (ret & DA9052_BUCK_ILIM_MASK_EVEN) >> 2;
+ else
+ ret = (ret & DA9052_BUCK_ILIM_MASK_ODD) >> 6;
+
+ /* Select the appropriate current limit range */
+ if (regulator->da9052->chip_id == DA9052)
+ row = 0;
+ else if (offset == 0)
+ row = 1;
+
+ return da9052_current_limits[row][ret];
+}
+
+static int da9052_dcdc_set_current_limit(struct regulator_dev *rdev, int min_uA,
+ int max_uA)
+{
+ struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+ int offset = rdev_get_id(rdev);
+ int reg_val = 0;
+ int i, row = 2;
+
+ /* Select the appropriate current limit range */
+ if (regulator->da9052->chip_id == DA9052)
+ row = 0;
+ else if (offset == 0)
+ row = 1;
+
+ if (min_uA > da9052_current_limits[row][DA9052_MAX_UA] ||
+ max_uA < da9052_current_limits[row][DA9052_MIN_UA])
+ return -EINVAL;
+
+ for (i = 0; i < DA9052_CURRENT_RANGE; i++) {
+ if (min_uA <= da9052_current_limits[row][i]) {
+ reg_val = i;
+ break;
+ }
+ }
+
+ /* Determine the even or odd position of the buck current limit
+ * register field
+ */
+ if (offset % 2 == 0)
+ return da9052_reg_update(regulator->da9052,
+ DA9052_BUCKA_REG + offset/2,
+ DA9052_BUCK_ILIM_MASK_EVEN,
+ reg_val << 2);
+ else
+ return da9052_reg_update(regulator->da9052,
+ DA9052_BUCKA_REG + offset/2,
+ DA9052_BUCK_ILIM_MASK_ODD,
+ reg_val << 6);
+}
+
+static int da9052_list_buckperi_voltage(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9052_regulator_info *info = regulator->info;
+ int volt_uV;
+
+ if ((regulator->da9052->chip_id == DA9052) &&
+ (selector >= DA9052_BUCK_PERI_REG_MAP_UPTO_3uV)) {
+ volt_uV = ((DA9052_BUCK_PERI_REG_MAP_UPTO_3uV * info->step_uV)
+ + info->min_uV);
+ volt_uV += (selector - DA9052_BUCK_PERI_REG_MAP_UPTO_3uV)
+ * (DA9052_BUCK_PERI_3uV_STEP);
+ } else
+ volt_uV = (selector * info->step_uV) + info->min_uV;
+
+ if (volt_uV > info->max_uV)
+ return -EINVAL;
+
+ return volt_uV;
+}
+
+static int da9052_list_voltage(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9052_regulator_info *info = regulator->info;
+ int volt_uV;
+
+ volt_uV = info->min_uV + info->step_uV * selector;
+
+ if (volt_uV > info->max_uV)
+ return -EINVAL;
+
+ return volt_uV;
+}
+
+static int da9052_regulator_set_voltage_int(struct regulator_dev *rdev,
+ int min_uV, int max_uV,
+ unsigned int *selector)
+{
+ struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9052_regulator_info *info = regulator->info;
+ int offset = rdev_get_id(rdev);
+ int ret;
+
+ ret = verify_range(info, min_uV, max_uV);
+ if (ret < 0)
+ return ret;
+
+ if (min_uV < info->min_uV)
+ min_uV = info->min_uV;
+
+ *selector = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
+
+ ret = da9052_list_voltage(rdev, *selector);
+ if (ret < 0)
+ return ret;
+
+ return da9052_reg_update(regulator->da9052,
+ DA9052_BUCKCORE_REG + offset,
+ (1 << info->volt_shift) - 1, *selector);
+}
+
+static int da9052_set_ldo_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV,
+ unsigned int *selector)
+{
+ return da9052_regulator_set_voltage_int(rdev, min_uV, max_uV, selector);
+}
+
+static int da9052_set_ldo5_6_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV,
+ unsigned int *selector)
+{
+ struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9052_regulator_info *info = regulator->info;
+ int ret;
+
+ ret = da9052_regulator_set_voltage_int(rdev, min_uV, max_uV, selector);
+ if (ret < 0)
+ return ret;
+
+ /* Some LDOs are DVC controlled which requires enabling of
+ * the LDO activate bit to implment the changes on the
+ * LDO output.
+ */
+ return da9052_reg_update(regulator->da9052, DA9052_SUPPLY_REG,
+ info->activate_bit, info->activate_bit);
+}
+
+static int da9052_set_dcdc_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV,
+ unsigned int *selector)
+{
+ struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9052_regulator_info *info = regulator->info;
+ int ret;
+
+ ret = da9052_regulator_set_voltage_int(rdev, min_uV, max_uV, selector);
+ if (ret < 0)
+ return ret;
+
+ /* Some DCDCs are DVC controlled which requires enabling of
+ * the DCDC activate bit to implment the changes on the
+ * DCDC output.
+ */
+ return da9052_reg_update(regulator->da9052, DA9052_SUPPLY_REG,
+ info->activate_bit, info->activate_bit);
+}
+
+static int da9052_get_regulator_voltage_sel(struct regulator_dev *rdev)
+{
+ struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9052_regulator_info *info = regulator->info;
+ int offset = rdev_get_id(rdev);
+ int ret;
+
+ ret = da9052_reg_read(regulator->da9052, DA9052_BUCKCORE_REG + offset);
+ if (ret < 0)
+ return ret;
+
+ ret &= ((1 << info->volt_shift) - 1);
+
+ return ret;
+}
+
+static int da9052_set_buckperi_voltage(struct regulator_dev *rdev, int min_uV,
+ int max_uV, unsigned int *selector)
+{
+ struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9052_regulator_info *info = regulator->info;
+ int offset = rdev_get_id(rdev);
+ int ret;
+
+ ret = verify_range(info, min_uV, max_uV);
+ if (ret < 0)
+ return ret;
+
+ if (min_uV < info->min_uV)
+ min_uV = info->min_uV;
+
+ if ((regulator->da9052->chip_id == DA9052) &&
+ (min_uV >= DA9052_CONST_3uV))
+ *selector = DA9052_BUCK_PERI_REG_MAP_UPTO_3uV +
+ DIV_ROUND_UP(min_uV - DA9052_CONST_3uV,
+ DA9052_BUCK_PERI_3uV_STEP);
+ else
+ *selector = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
+
+ ret = da9052_list_buckperi_voltage(rdev, *selector);
+ if (ret < 0)
+ return ret;
+
+ return da9052_reg_update(regulator->da9052,
+ DA9052_BUCKCORE_REG + offset,
+ (1 << info->volt_shift) - 1, *selector);
+}
+
+static int da9052_get_buckperi_voltage_sel(struct regulator_dev *rdev)
+{
+ struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+ struct da9052_regulator_info *info = regulator->info;
+ int offset = rdev_get_id(rdev);
+ int ret;
+
+ ret = da9052_reg_read(regulator->da9052, DA9052_BUCKCORE_REG + offset);
+ if (ret < 0)
+ return ret;
+
+ ret &= ((1 << info->volt_shift) - 1);
+
+ return ret;
+}
+
+static struct regulator_ops da9052_buckperi_ops = {
+ .list_voltage = da9052_list_buckperi_voltage,
+ .get_voltage_sel = da9052_get_buckperi_voltage_sel,
+ .set_voltage = da9052_set_buckperi_voltage,
+
+ .get_current_limit = da9052_dcdc_get_current_limit,
+ .set_current_limit = da9052_dcdc_set_current_limit,
+
+ .is_enabled = da9052_regulator_is_enabled,
+ .enable = da9052_regulator_enable,
+ .disable = da9052_regulator_disable,
+};
+
+static struct regulator_ops da9052_dcdc_ops = {
+ .set_voltage = da9052_set_dcdc_voltage,
+ .get_current_limit = da9052_dcdc_get_current_limit,
+ .set_current_limit = da9052_dcdc_set_current_limit,
+
+ .list_voltage = da9052_list_voltage,
+ .get_voltage_sel = da9052_get_regulator_voltage_sel,
+ .is_enabled = da9052_regulator_is_enabled,
+ .enable = da9052_regulator_enable,
+ .disable = da9052_regulator_disable,
+};
+
+static struct regulator_ops da9052_ldo5_6_ops = {
+ .set_voltage = da9052_set_ldo5_6_voltage,
+
+ .list_voltage = da9052_list_voltage,
+ .get_voltage_sel = da9052_get_regulator_voltage_sel,
+ .is_enabled = da9052_regulator_is_enabled,
+ .enable = da9052_regulator_enable,
+ .disable = da9052_regulator_disable,
+};
+
+static struct regulator_ops da9052_ldo_ops = {
+ .set_voltage = da9052_set_ldo_voltage,
+
+ .list_voltage = da9052_list_voltage,
+ .get_voltage_sel = da9052_get_regulator_voltage_sel,
+ .is_enabled = da9052_regulator_is_enabled,
+ .enable = da9052_regulator_enable,
+ .disable = da9052_regulator_disable,
+};
+
+#define DA9052_LDO5_6(_id, step, min, max, sbits, ebits, abits) \
+{\
+ .reg_desc = {\
+ .name = "LDO" #_id,\
+ .ops = &da9052_ldo5_6_ops,\
+ .type = REGULATOR_VOLTAGE,\
+ .id = _id,\
+ .n_voltages = (max - min) / step + 1, \
+ .owner = THIS_MODULE,\
+ },\
+ .min_uV = (min) * 1000,\
+ .max_uV = (max) * 1000,\
+ .step_uV = (step) * 1000,\
+ .volt_shift = (sbits),\
+ .en_bit = (ebits),\
+ .activate_bit = (abits),\
+}
+
+#define DA9052_LDO(_id, step, min, max, sbits, ebits, abits) \
+{\
+ .reg_desc = {\
+ .name = "LDO" #_id,\
+ .ops = &da9052_ldo_ops,\
+ .type = REGULATOR_VOLTAGE,\
+ .id = _id,\
+ .n_voltages = (max - min) / step + 1, \
+ .owner = THIS_MODULE,\
+ },\
+ .min_uV = (min) * 1000,\
+ .max_uV = (max) * 1000,\
+ .step_uV = (step) * 1000,\
+ .volt_shift = (sbits),\
+ .en_bit = (ebits),\
+ .activate_bit = (abits),\
+}
+
+#define DA9052_DCDC(_id, step, min, max, sbits, ebits, abits) \
+{\
+ .reg_desc = {\
+ .name = "BUCK" #_id,\
+ .ops = &da9052_dcdc_ops,\
+ .type = REGULATOR_VOLTAGE,\
+ .id = _id,\
+ .n_voltages = (max - min) / step + 1, \
+ .owner = THIS_MODULE,\
+ },\
+ .min_uV = (min) * 1000,\
+ .max_uV = (max) * 1000,\
+ .step_uV = (step) * 1000,\
+ .volt_shift = (sbits),\
+ .en_bit = (ebits),\
+ .activate_bit = (abits),\
+}
+
+#define DA9052_BUCKPERI(_id, step, min, max, sbits, ebits, abits) \
+{\
+ .reg_desc = {\
+ .name = "BUCK" #_id,\
+ .ops = &da9052_buckperi_ops,\
+ .type = REGULATOR_VOLTAGE,\
+ .id = _id,\
+ .n_voltages = (max - min) / step + 1, \
+ .owner = THIS_MODULE,\
+ },\
+ .min_uV = (min) * 1000,\
+ .max_uV = (max) * 1000,\
+ .step_uV = (step) * 1000,\
+ .volt_shift = (sbits),\
+ .en_bit = (ebits),\
+ .activate_bit = (abits),\
+}
+
+static struct da9052_regulator_info da9052_regulator_info[] = {
+ /* Buck1 - 4 */
+ DA9052_DCDC(0, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBCOREGO),
+ DA9052_DCDC(1, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBPROGO),
+ DA9052_DCDC(2, 25, 925, 2500, 6, 6, DA9052_SUPPLY_VBMEMGO),
+ DA9052_BUCKPERI(3, 50, 1800, 3600, 5, 6, 0),
+ /* LD01 - LDO10 */
+ DA9052_LDO(4, 50, 600, 1800, 5, 6, 0),
+ DA9052_LDO5_6(5, 25, 600, 1800, 6, 6, DA9052_SUPPLY_VLDO2GO),
+ DA9052_LDO5_6(6, 25, 1725, 3300, 6, 6, DA9052_SUPPLY_VLDO3GO),
+ DA9052_LDO(7, 25, 1725, 3300, 6, 6, 0),
+ DA9052_LDO(8, 50, 1200, 3600, 6, 6, 0),
+ DA9052_LDO(9, 50, 1200, 3600, 6, 6, 0),
+ DA9052_LDO(10, 50, 1200, 3600, 6, 6, 0),
+ DA9052_LDO(11, 50, 1200, 3600, 6, 6, 0),
+ DA9052_LDO(12, 50, 1250, 3650, 6, 6, 0),
+ DA9052_LDO(13, 50, 1200, 3600, 6, 6, 0),
+};
+
+static struct da9052_regulator_info da9053_regulator_info[] = {
+ /* Buck1 - 4 */
+ DA9052_DCDC(0, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBCOREGO),
+ DA9052_DCDC(1, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBPROGO),
+ DA9052_DCDC(2, 25, 925, 2500, 6, 6, DA9052_SUPPLY_VBMEMGO),
+ DA9052_BUCKPERI(3, 25, 925, 2500, 6, 6, 0),
+ /* LD01 - LDO10 */
+ DA9052_LDO(4, 50, 600, 1800, 5, 6, 0),
+ DA9052_LDO5_6(5, 25, 600, 1800, 6, 6, DA9052_SUPPLY_VLDO2GO),
+ DA9052_LDO5_6(6, 25, 1725, 3300, 6, 6, DA9052_SUPPLY_VLDO3GO),
+ DA9052_LDO(7, 25, 1725, 3300, 6, 6, 0),
+ DA9052_LDO(8, 50, 1200, 3600, 6, 6, 0),
+ DA9052_LDO(9, 50, 1200, 3600, 6, 6, 0),
+ DA9052_LDO(10, 50, 1200, 3600, 6, 6, 0),
+ DA9052_LDO(11, 50, 1200, 3600, 6, 6, 0),
+ DA9052_LDO(12, 50, 1250, 3650, 6, 6, 0),
+ DA9052_LDO(13, 50, 1200, 3600, 6, 6, 0),
+};
+
+static inline struct da9052_regulator_info *find_regulator_info(u8 chip_id,
+ int id)
+{
+ struct da9052_regulator_info *info;
+ int i;
+
+ switch (chip_id) {
+ case DA9052:
+ for (i = 0; i < ARRAY_SIZE(da9052_regulator_info); i++) {
+ info = &da9052_regulator_info[i];
+ if (info->reg_desc.id == id)
+ return info;
+ }
+ break;
+ case DA9053_AA:
+ case DA9053_BA:
+ case DA9053_BB:
+ for (i = 0; i < ARRAY_SIZE(da9053_regulator_info); i++) {
+ info = &da9053_regulator_info[i];
+ if (info->reg_desc.id == id)
+ return info;
+ }
+ break;
+ }
+
+ return NULL;
+}
+
+static int __devinit da9052_regulator_probe(struct platform_device *pdev)
+{
+ struct da9052_regulator *regulator;
+ struct da9052 *da9052;
+ struct da9052_pdata *pdata;
+ int ret;
+
+ regulator = devm_kzalloc(&pdev->dev, sizeof(struct da9052_regulator),
+ GFP_KERNEL);
+ if (!regulator)
+ return -ENOMEM;
+
+ da9052 = dev_get_drvdata(pdev->dev.parent);
+ pdata = da9052->dev->platform_data;
+ regulator->da9052 = da9052;
+
+ regulator->info = find_regulator_info(regulator->da9052->chip_id,
+ pdev->id);
+ if (regulator->info == NULL) {
+ dev_err(&pdev->dev, "invalid regulator ID specified\n");
+ ret = -EINVAL;
+ goto err;
+ }
+ regulator->rdev = regulator_register(®ulator->info->reg_desc,
+ &pdev->dev,
+ pdata->regulators[pdev->id],
+ regulator, NULL);
+ if (IS_ERR(regulator->rdev)) {
+ dev_err(&pdev->dev, "failed to register regulator %s\n",
+ regulator->info->reg_desc.name);
+ ret = PTR_ERR(regulator->rdev);
+ goto err;
+ }
+
+ platform_set_drvdata(pdev, regulator);
+
+ return 0;
+err:
+ devm_kfree(&pdev->dev, regulator);
+ return ret;
+}
+
+static int __devexit da9052_regulator_remove(struct platform_device *pdev)
+{
+ struct da9052_regulator *regulator = platform_get_drvdata(pdev);
+
+ regulator_unregister(regulator->rdev);
+ devm_kfree(&pdev->dev, regulator);
+
+ return 0;
+}
+
+static struct platform_driver da9052_regulator_driver = {
+ .probe = da9052_regulator_probe,
+ .remove = __devexit_p(da9052_regulator_remove),
+ .driver = {
+ .name = "da9052-regulator",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init da9052_regulator_init(void)
+{
+ return platform_driver_register(&da9052_regulator_driver);
+}
+subsys_initcall(da9052_regulator_init);
+
+static void __exit da9052_regulator_exit(void)
+{
+ platform_driver_unregister(&da9052_regulator_driver);
+}
+module_exit(da9052_regulator_exit);
+
+MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
+MODULE_DESCRIPTION("Power Regulator driver for Dialog DA9052 PMIC");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:da9052-regulator");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/db8500-prcmu.c b/ap/os/linux/linux-3.4.x/drivers/regulator/db8500-prcmu.c
new file mode 100644
index 0000000..4bd25e7
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/db8500-prcmu.c
@@ -0,0 +1,497 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * License Terms: GNU General Public License v2
+ * Authors: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson
+ * Bengt Jonsson <bengt.g.jonsson@stericsson.com> for ST-Ericsson
+ *
+ * Power domain regulators on DB8500
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/spinlock.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/dbx500-prcmu.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/db8500-prcmu.h>
+#include <linux/module.h>
+#include "dbx500-prcmu.h"
+
+static int db8500_regulator_enable(struct regulator_dev *rdev)
+{
+ struct dbx500_regulator_info *info = rdev_get_drvdata(rdev);
+
+ if (info == NULL)
+ return -EINVAL;
+
+ dev_vdbg(rdev_get_dev(rdev), "regulator-%s-enable\n",
+ info->desc.name);
+
+ if (!info->is_enabled) {
+ info->is_enabled = true;
+ if (!info->exclude_from_power_state)
+ power_state_active_enable();
+ }
+
+ return 0;
+}
+
+static int db8500_regulator_disable(struct regulator_dev *rdev)
+{
+ struct dbx500_regulator_info *info = rdev_get_drvdata(rdev);
+ int ret = 0;
+
+ if (info == NULL)
+ return -EINVAL;
+
+ dev_vdbg(rdev_get_dev(rdev), "regulator-%s-disable\n",
+ info->desc.name);
+
+ if (info->is_enabled) {
+ info->is_enabled = false;
+ if (!info->exclude_from_power_state)
+ ret = power_state_active_disable();
+ }
+
+ return ret;
+}
+
+static int db8500_regulator_is_enabled(struct regulator_dev *rdev)
+{
+ struct dbx500_regulator_info *info = rdev_get_drvdata(rdev);
+
+ if (info == NULL)
+ return -EINVAL;
+
+ dev_vdbg(rdev_get_dev(rdev), "regulator-%s-is_enabled (is_enabled):"
+ " %i\n", info->desc.name, info->is_enabled);
+
+ return info->is_enabled;
+}
+
+/* db8500 regulator operations */
+static struct regulator_ops db8500_regulator_ops = {
+ .enable = db8500_regulator_enable,
+ .disable = db8500_regulator_disable,
+ .is_enabled = db8500_regulator_is_enabled,
+};
+
+/*
+ * EPOD control
+ */
+static bool epod_on[NUM_EPOD_ID];
+static bool epod_ramret[NUM_EPOD_ID];
+
+static int enable_epod(u16 epod_id, bool ramret)
+{
+ int ret;
+
+ if (ramret) {
+ if (!epod_on[epod_id]) {
+ ret = prcmu_set_epod(epod_id, EPOD_STATE_RAMRET);
+ if (ret < 0)
+ return ret;
+ }
+ epod_ramret[epod_id] = true;
+ } else {
+ ret = prcmu_set_epod(epod_id, EPOD_STATE_ON);
+ if (ret < 0)
+ return ret;
+ epod_on[epod_id] = true;
+ }
+
+ return 0;
+}
+
+static int disable_epod(u16 epod_id, bool ramret)
+{
+ int ret;
+
+ if (ramret) {
+ if (!epod_on[epod_id]) {
+ ret = prcmu_set_epod(epod_id, EPOD_STATE_OFF);
+ if (ret < 0)
+ return ret;
+ }
+ epod_ramret[epod_id] = false;
+ } else {
+ if (epod_ramret[epod_id]) {
+ ret = prcmu_set_epod(epod_id, EPOD_STATE_RAMRET);
+ if (ret < 0)
+ return ret;
+ } else {
+ ret = prcmu_set_epod(epod_id, EPOD_STATE_OFF);
+ if (ret < 0)
+ return ret;
+ }
+ epod_on[epod_id] = false;
+ }
+
+ return 0;
+}
+
+/*
+ * Regulator switch
+ */
+static int db8500_regulator_switch_enable(struct regulator_dev *rdev)
+{
+ struct dbx500_regulator_info *info = rdev_get_drvdata(rdev);
+ int ret;
+
+ if (info == NULL)
+ return -EINVAL;
+
+ dev_vdbg(rdev_get_dev(rdev), "regulator-switch-%s-enable\n",
+ info->desc.name);
+
+ ret = enable_epod(info->epod_id, info->is_ramret);
+ if (ret < 0) {
+ dev_err(rdev_get_dev(rdev),
+ "regulator-switch-%s-enable: prcmu call failed\n",
+ info->desc.name);
+ goto out;
+ }
+
+ info->is_enabled = true;
+out:
+ return ret;
+}
+
+static int db8500_regulator_switch_disable(struct regulator_dev *rdev)
+{
+ struct dbx500_regulator_info *info = rdev_get_drvdata(rdev);
+ int ret;
+
+ if (info == NULL)
+ return -EINVAL;
+
+ dev_vdbg(rdev_get_dev(rdev), "regulator-switch-%s-disable\n",
+ info->desc.name);
+
+ ret = disable_epod(info->epod_id, info->is_ramret);
+ if (ret < 0) {
+ dev_err(rdev_get_dev(rdev),
+ "regulator_switch-%s-disable: prcmu call failed\n",
+ info->desc.name);
+ goto out;
+ }
+
+ info->is_enabled = 0;
+out:
+ return ret;
+}
+
+static int db8500_regulator_switch_is_enabled(struct regulator_dev *rdev)
+{
+ struct dbx500_regulator_info *info = rdev_get_drvdata(rdev);
+
+ if (info == NULL)
+ return -EINVAL;
+
+ dev_vdbg(rdev_get_dev(rdev),
+ "regulator-switch-%s-is_enabled (is_enabled): %i\n",
+ info->desc.name, info->is_enabled);
+
+ return info->is_enabled;
+}
+
+static struct regulator_ops db8500_regulator_switch_ops = {
+ .enable = db8500_regulator_switch_enable,
+ .disable = db8500_regulator_switch_disable,
+ .is_enabled = db8500_regulator_switch_is_enabled,
+};
+
+/*
+ * Regulator information
+ */
+static struct dbx500_regulator_info
+dbx500_regulator_info[DB8500_NUM_REGULATORS] = {
+ [DB8500_REGULATOR_VAPE] = {
+ .desc = {
+ .name = "db8500-vape",
+ .id = DB8500_REGULATOR_VAPE,
+ .ops = &db8500_regulator_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ },
+ [DB8500_REGULATOR_VARM] = {
+ .desc = {
+ .name = "db8500-varm",
+ .id = DB8500_REGULATOR_VARM,
+ .ops = &db8500_regulator_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ },
+ [DB8500_REGULATOR_VMODEM] = {
+ .desc = {
+ .name = "db8500-vmodem",
+ .id = DB8500_REGULATOR_VMODEM,
+ .ops = &db8500_regulator_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ },
+ [DB8500_REGULATOR_VPLL] = {
+ .desc = {
+ .name = "db8500-vpll",
+ .id = DB8500_REGULATOR_VPLL,
+ .ops = &db8500_regulator_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ },
+ [DB8500_REGULATOR_VSMPS1] = {
+ .desc = {
+ .name = "db8500-vsmps1",
+ .id = DB8500_REGULATOR_VSMPS1,
+ .ops = &db8500_regulator_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ },
+ [DB8500_REGULATOR_VSMPS2] = {
+ .desc = {
+ .name = "db8500-vsmps2",
+ .id = DB8500_REGULATOR_VSMPS2,
+ .ops = &db8500_regulator_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ .exclude_from_power_state = true,
+ },
+ [DB8500_REGULATOR_VSMPS3] = {
+ .desc = {
+ .name = "db8500-vsmps3",
+ .id = DB8500_REGULATOR_VSMPS3,
+ .ops = &db8500_regulator_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ },
+ [DB8500_REGULATOR_VRF1] = {
+ .desc = {
+ .name = "db8500-vrf1",
+ .id = DB8500_REGULATOR_VRF1,
+ .ops = &db8500_regulator_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ },
+ [DB8500_REGULATOR_SWITCH_SVAMMDSP] = {
+ .desc = {
+ .name = "db8500-sva-mmdsp",
+ .id = DB8500_REGULATOR_SWITCH_SVAMMDSP,
+ .ops = &db8500_regulator_switch_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ .epod_id = EPOD_ID_SVAMMDSP,
+ },
+ [DB8500_REGULATOR_SWITCH_SVAMMDSPRET] = {
+ .desc = {
+ .name = "db8500-sva-mmdsp-ret",
+ .id = DB8500_REGULATOR_SWITCH_SVAMMDSPRET,
+ .ops = &db8500_regulator_switch_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ .epod_id = EPOD_ID_SVAMMDSP,
+ .is_ramret = true,
+ },
+ [DB8500_REGULATOR_SWITCH_SVAPIPE] = {
+ .desc = {
+ .name = "db8500-sva-pipe",
+ .id = DB8500_REGULATOR_SWITCH_SVAPIPE,
+ .ops = &db8500_regulator_switch_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ .epod_id = EPOD_ID_SVAPIPE,
+ },
+ [DB8500_REGULATOR_SWITCH_SIAMMDSP] = {
+ .desc = {
+ .name = "db8500-sia-mmdsp",
+ .id = DB8500_REGULATOR_SWITCH_SIAMMDSP,
+ .ops = &db8500_regulator_switch_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ .epod_id = EPOD_ID_SIAMMDSP,
+ },
+ [DB8500_REGULATOR_SWITCH_SIAMMDSPRET] = {
+ .desc = {
+ .name = "db8500-sia-mmdsp-ret",
+ .id = DB8500_REGULATOR_SWITCH_SIAMMDSPRET,
+ .ops = &db8500_regulator_switch_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ .epod_id = EPOD_ID_SIAMMDSP,
+ .is_ramret = true,
+ },
+ [DB8500_REGULATOR_SWITCH_SIAPIPE] = {
+ .desc = {
+ .name = "db8500-sia-pipe",
+ .id = DB8500_REGULATOR_SWITCH_SIAPIPE,
+ .ops = &db8500_regulator_switch_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ .epod_id = EPOD_ID_SIAPIPE,
+ },
+ [DB8500_REGULATOR_SWITCH_SGA] = {
+ .desc = {
+ .name = "db8500-sga",
+ .id = DB8500_REGULATOR_SWITCH_SGA,
+ .ops = &db8500_regulator_switch_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ .epod_id = EPOD_ID_SGA,
+ },
+ [DB8500_REGULATOR_SWITCH_B2R2_MCDE] = {
+ .desc = {
+ .name = "db8500-b2r2-mcde",
+ .id = DB8500_REGULATOR_SWITCH_B2R2_MCDE,
+ .ops = &db8500_regulator_switch_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ .epod_id = EPOD_ID_B2R2_MCDE,
+ },
+ [DB8500_REGULATOR_SWITCH_ESRAM12] = {
+ .desc = {
+ .name = "db8500-esram12",
+ .id = DB8500_REGULATOR_SWITCH_ESRAM12,
+ .ops = &db8500_regulator_switch_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ .epod_id = EPOD_ID_ESRAM12,
+ .is_enabled = true,
+ },
+ [DB8500_REGULATOR_SWITCH_ESRAM12RET] = {
+ .desc = {
+ .name = "db8500-esram12-ret",
+ .id = DB8500_REGULATOR_SWITCH_ESRAM12RET,
+ .ops = &db8500_regulator_switch_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ .epod_id = EPOD_ID_ESRAM12,
+ .is_ramret = true,
+ },
+ [DB8500_REGULATOR_SWITCH_ESRAM34] = {
+ .desc = {
+ .name = "db8500-esram34",
+ .id = DB8500_REGULATOR_SWITCH_ESRAM34,
+ .ops = &db8500_regulator_switch_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ .epod_id = EPOD_ID_ESRAM34,
+ .is_enabled = true,
+ },
+ [DB8500_REGULATOR_SWITCH_ESRAM34RET] = {
+ .desc = {
+ .name = "db8500-esram34-ret",
+ .id = DB8500_REGULATOR_SWITCH_ESRAM34RET,
+ .ops = &db8500_regulator_switch_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ .epod_id = EPOD_ID_ESRAM34,
+ .is_ramret = true,
+ },
+};
+
+static int __devinit db8500_regulator_probe(struct platform_device *pdev)
+{
+ struct regulator_init_data *db8500_init_data =
+ dev_get_platdata(&pdev->dev);
+ int i, err;
+
+ /* register all regulators */
+ for (i = 0; i < ARRAY_SIZE(dbx500_regulator_info); i++) {
+ struct dbx500_regulator_info *info;
+ struct regulator_init_data *init_data = &db8500_init_data[i];
+
+ /* assign per-regulator data */
+ info = &dbx500_regulator_info[i];
+ info->dev = &pdev->dev;
+
+ /* register with the regulator framework */
+ info->rdev = regulator_register(&info->desc, &pdev->dev,
+ init_data, info, NULL);
+ if (IS_ERR(info->rdev)) {
+ err = PTR_ERR(info->rdev);
+ dev_err(&pdev->dev, "failed to register %s: err %i\n",
+ info->desc.name, err);
+
+ /* if failing, unregister all earlier regulators */
+ while (--i >= 0) {
+ info = &dbx500_regulator_info[i];
+ regulator_unregister(info->rdev);
+ }
+ return err;
+ }
+
+ dev_dbg(rdev_get_dev(info->rdev),
+ "regulator-%s-probed\n", info->desc.name);
+ }
+ err = ux500_regulator_debug_init(pdev,
+ dbx500_regulator_info,
+ ARRAY_SIZE(dbx500_regulator_info));
+
+ return err;
+}
+
+static int __exit db8500_regulator_remove(struct platform_device *pdev)
+{
+ int i;
+
+ ux500_regulator_debug_exit();
+
+ for (i = 0; i < ARRAY_SIZE(dbx500_regulator_info); i++) {
+ struct dbx500_regulator_info *info;
+ info = &dbx500_regulator_info[i];
+
+ dev_vdbg(rdev_get_dev(info->rdev),
+ "regulator-%s-remove\n", info->desc.name);
+
+ regulator_unregister(info->rdev);
+ }
+
+ return 0;
+}
+
+static struct platform_driver db8500_regulator_driver = {
+ .driver = {
+ .name = "db8500-prcmu-regulators",
+ .owner = THIS_MODULE,
+ },
+ .probe = db8500_regulator_probe,
+ .remove = __exit_p(db8500_regulator_remove),
+};
+
+static int __init db8500_regulator_init(void)
+{
+ return platform_driver_register(&db8500_regulator_driver);
+}
+
+static void __exit db8500_regulator_exit(void)
+{
+ platform_driver_unregister(&db8500_regulator_driver);
+}
+
+arch_initcall(db8500_regulator_init);
+module_exit(db8500_regulator_exit);
+
+MODULE_AUTHOR("STMicroelectronics/ST-Ericsson");
+MODULE_DESCRIPTION("DB8500 regulator driver");
+MODULE_LICENSE("GPL v2");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/dbx500-prcmu.c b/ap/os/linux/linux-3.4.x/drivers/regulator/dbx500-prcmu.c
new file mode 100644
index 0000000..f2e5ecd
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/dbx500-prcmu.c
@@ -0,0 +1,241 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * License Terms: GNU General Public License v2
+ * Authors: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson
+ * Bengt Jonsson <bengt.g.jonsson@stericsson.com> for ST-Ericsson
+ *
+ * UX500 common part of Power domain regulators
+ */
+
+#include <linux/kernel.h>
+#include <linux/err.h>
+#include <linux/regulator/driver.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/slab.h>
+
+#include "dbx500-prcmu.h"
+
+/*
+ * power state reference count
+ */
+static int power_state_active_cnt; /* will initialize to zero */
+static DEFINE_SPINLOCK(power_state_active_lock);
+
+int power_state_active_get(void)
+{
+ unsigned long flags;
+ int cnt;
+
+ spin_lock_irqsave(&power_state_active_lock, flags);
+ cnt = power_state_active_cnt;
+ spin_unlock_irqrestore(&power_state_active_lock, flags);
+
+ return cnt;
+}
+
+void power_state_active_enable(void)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&power_state_active_lock, flags);
+ power_state_active_cnt++;
+ spin_unlock_irqrestore(&power_state_active_lock, flags);
+}
+
+int power_state_active_disable(void)
+{
+ int ret = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&power_state_active_lock, flags);
+ if (power_state_active_cnt <= 0) {
+ pr_err("power state: unbalanced enable/disable calls\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ power_state_active_cnt--;
+out:
+ spin_unlock_irqrestore(&power_state_active_lock, flags);
+ return ret;
+}
+
+#ifdef CONFIG_REGULATOR_DEBUG
+
+static struct ux500_regulator_debug {
+ struct dentry *dir;
+ struct dentry *status_file;
+ struct dentry *power_state_cnt_file;
+ struct dbx500_regulator_info *regulator_array;
+ int num_regulators;
+ u8 *state_before_suspend;
+ u8 *state_after_suspend;
+} rdebug;
+
+void ux500_regulator_suspend_debug(void)
+{
+ int i;
+ for (i = 0; i < rdebug.num_regulators; i++)
+ rdebug.state_before_suspend[i] =
+ rdebug.regulator_array[i].is_enabled;
+}
+
+void ux500_regulator_resume_debug(void)
+{
+ int i;
+ for (i = 0; i < rdebug.num_regulators; i++)
+ rdebug.state_after_suspend[i] =
+ rdebug.regulator_array[i].is_enabled;
+}
+
+static int ux500_regulator_power_state_cnt_print(struct seq_file *s, void *p)
+{
+ struct device *dev = s->private;
+ int err;
+
+ /* print power state count */
+ err = seq_printf(s, "ux500-regulator power state count: %i\n",
+ power_state_active_get());
+ if (err < 0)
+ dev_err(dev, "seq_printf overflow\n");
+
+ return 0;
+}
+
+static int ux500_regulator_power_state_cnt_open(struct inode *inode,
+ struct file *file)
+{
+ return single_open(file, ux500_regulator_power_state_cnt_print,
+ inode->i_private);
+}
+
+static const struct file_operations ux500_regulator_power_state_cnt_fops = {
+ .open = ux500_regulator_power_state_cnt_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+static int ux500_regulator_status_print(struct seq_file *s, void *p)
+{
+ struct device *dev = s->private;
+ int err;
+ int i;
+
+ /* print dump header */
+ err = seq_printf(s, "ux500-regulator status:\n");
+ if (err < 0)
+ dev_err(dev, "seq_printf overflow\n");
+
+ err = seq_printf(s, "%31s : %8s : %8s\n", "current",
+ "before", "after");
+ if (err < 0)
+ dev_err(dev, "seq_printf overflow\n");
+
+ for (i = 0; i < rdebug.num_regulators; i++) {
+ struct dbx500_regulator_info *info;
+ /* Access per-regulator data */
+ info = &rdebug.regulator_array[i];
+
+ /* print status */
+ err = seq_printf(s, "%20s : %8s : %8s : %8s\n", info->desc.name,
+ info->is_enabled ? "enabled" : "disabled",
+ rdebug.state_before_suspend[i] ? "enabled" : "disabled",
+ rdebug.state_after_suspend[i] ? "enabled" : "disabled");
+ if (err < 0)
+ dev_err(dev, "seq_printf overflow\n");
+ }
+
+ return 0;
+}
+
+static int ux500_regulator_status_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, ux500_regulator_status_print,
+ inode->i_private);
+}
+
+static const struct file_operations ux500_regulator_status_fops = {
+ .open = ux500_regulator_status_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .owner = THIS_MODULE,
+};
+
+int __attribute__((weak)) dbx500_regulator_testcase(
+ struct dbx500_regulator_info *regulator_info,
+ int num_regulators)
+{
+ return 0;
+}
+
+int __devinit
+ux500_regulator_debug_init(struct platform_device *pdev,
+ struct dbx500_regulator_info *regulator_info,
+ int num_regulators)
+{
+ /* create directory */
+ rdebug.dir = debugfs_create_dir("ux500-regulator", NULL);
+ if (!rdebug.dir)
+ goto exit_no_debugfs;
+
+ /* create "status" file */
+ rdebug.status_file = debugfs_create_file("status",
+ S_IRUGO, rdebug.dir, &pdev->dev,
+ &ux500_regulator_status_fops);
+ if (!rdebug.status_file)
+ goto exit_destroy_dir;
+
+ /* create "power-state-count" file */
+ rdebug.power_state_cnt_file = debugfs_create_file("power-state-count",
+ S_IRUGO, rdebug.dir, &pdev->dev,
+ &ux500_regulator_power_state_cnt_fops);
+ if (!rdebug.power_state_cnt_file)
+ goto exit_destroy_status;
+
+ rdebug.regulator_array = regulator_info;
+ rdebug.num_regulators = num_regulators;
+
+ rdebug.state_before_suspend = kzalloc(num_regulators, GFP_KERNEL);
+ if (!rdebug.state_before_suspend) {
+ dev_err(&pdev->dev,
+ "could not allocate memory for saving state\n");
+ goto exit_destroy_power_state;
+ }
+
+ rdebug.state_after_suspend = kzalloc(num_regulators, GFP_KERNEL);
+ if (!rdebug.state_after_suspend) {
+ dev_err(&pdev->dev,
+ "could not allocate memory for saving state\n");
+ goto exit_free;
+ }
+
+ dbx500_regulator_testcase(regulator_info, num_regulators);
+ return 0;
+
+exit_free:
+ kfree(rdebug.state_before_suspend);
+exit_destroy_power_state:
+ debugfs_remove(rdebug.power_state_cnt_file);
+exit_destroy_status:
+ debugfs_remove(rdebug.status_file);
+exit_destroy_dir:
+ debugfs_remove(rdebug.dir);
+exit_no_debugfs:
+ dev_err(&pdev->dev, "failed to create debugfs entries.\n");
+ return -ENOMEM;
+}
+
+int __devexit ux500_regulator_debug_exit(void)
+{
+ debugfs_remove_recursive(rdebug.dir);
+ kfree(rdebug.state_after_suspend);
+ kfree(rdebug.state_before_suspend);
+
+ return 0;
+}
+#endif
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/dbx500-prcmu.h b/ap/os/linux/linux-3.4.x/drivers/regulator/dbx500-prcmu.h
new file mode 100644
index 0000000..e763883
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/dbx500-prcmu.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * Author: Bengt Jonsson <bengt.jonsson@stericsson.com> for ST-Ericsson,
+ * Jonas Aaberg <jonas.aberg@stericsson.com> for ST-Ericsson
+ *
+ * License Terms: GNU General Public License v2
+ *
+ */
+
+#ifndef DBX500_REGULATOR_H
+#define DBX500_REGULATOR_H
+
+#include <linux/platform_device.h>
+
+/**
+ * struct dbx500_regulator_info - dbx500 regulator information
+ * @dev: device pointer
+ * @desc: regulator description
+ * @rdev: regulator device pointer
+ * @is_enabled: status of the regulator
+ * @epod_id: id for EPOD (power domain)
+ * @is_ramret: RAM retention switch for EPOD (power domain)
+ * @operating_point: operating point (only for vape, to be removed)
+ *
+ */
+struct dbx500_regulator_info {
+ struct device *dev;
+ struct regulator_desc desc;
+ struct regulator_dev *rdev;
+ bool is_enabled;
+ u16 epod_id;
+ bool is_ramret;
+ bool exclude_from_power_state;
+ unsigned int operating_point;
+};
+
+void power_state_active_enable(void);
+int power_state_active_disable(void);
+
+
+#ifdef CONFIG_REGULATOR_DEBUG
+int ux500_regulator_debug_init(struct platform_device *pdev,
+ struct dbx500_regulator_info *regulator_info,
+ int num_regulators);
+
+int ux500_regulator_debug_exit(void);
+#else
+
+static inline int ux500_regulator_debug_init(struct platform_device *pdev,
+ struct dbx500_regulator_info *regulator_info,
+ int num_regulators)
+{
+ return 0;
+}
+
+static inline int ux500_regulator_debug_exit(void)
+{
+ return 0;
+}
+
+#endif
+#endif
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/dummy.c b/ap/os/linux/linux-3.4.x/drivers/regulator/dummy.c
new file mode 100644
index 0000000..0ee00de
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/dummy.c
@@ -0,0 +1,87 @@
+/*
+ * dummy.c
+ *
+ * Copyright 2010 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This is useful for systems with mixed controllable and
+ * non-controllable regulators, as well as for allowing testing on
+ * systems with no controllable regulators.
+ */
+
+#include <linux/err.h>
+#include <linux/export.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+
+#include "dummy.h"
+
+struct regulator_dev *dummy_regulator_rdev;
+
+static struct regulator_init_data dummy_initdata;
+
+static struct regulator_ops dummy_ops;
+
+static struct regulator_desc dummy_desc = {
+ .name = "dummy",
+ .id = -1,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .ops = &dummy_ops,
+};
+
+static int __devinit dummy_regulator_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ dummy_regulator_rdev = regulator_register(&dummy_desc, NULL,
+ &dummy_initdata, NULL, NULL);
+ if (IS_ERR(dummy_regulator_rdev)) {
+ ret = PTR_ERR(dummy_regulator_rdev);
+ pr_err("Failed to register regulator: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static struct platform_driver dummy_regulator_driver = {
+ .probe = dummy_regulator_probe,
+ .driver = {
+ .name = "reg-dummy",
+ .owner = THIS_MODULE,
+ },
+};
+
+static struct platform_device *dummy_pdev;
+
+void __init regulator_dummy_init(void)
+{
+ int ret;
+
+ dummy_pdev = platform_device_alloc("reg-dummy", -1);
+ if (!dummy_pdev) {
+ pr_err("Failed to allocate dummy regulator device\n");
+ return;
+ }
+
+ ret = platform_device_add(dummy_pdev);
+ if (ret != 0) {
+ pr_err("Failed to register dummy regulator device: %d\n", ret);
+ platform_device_put(dummy_pdev);
+ return;
+ }
+
+ ret = platform_driver_register(&dummy_regulator_driver);
+ if (ret != 0) {
+ pr_err("Failed to register dummy regulator driver: %d\n", ret);
+ platform_device_unregister(dummy_pdev);
+ }
+}
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/dummy.h b/ap/os/linux/linux-3.4.x/drivers/regulator/dummy.h
new file mode 100644
index 0000000..97a11b7
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/dummy.h
@@ -0,0 +1,27 @@
+/*
+ * dummy.h
+ *
+ * Copyright 2010 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This is useful for systems with mixed controllable and
+ * non-controllable regulators, as well as for allowing testing on
+ * systems with no controllable regulators.
+ */
+
+#ifndef _DUMMY_H
+#define _DUMMY_H
+
+struct regulator_dev;
+
+extern struct regulator_dev *dummy_regulator_rdev;
+
+void __init regulator_dummy_init(void);
+
+#endif
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/fixed-helper.c b/ap/os/linux/linux-3.4.x/drivers/regulator/fixed-helper.c
new file mode 100644
index 0000000..cacd33c
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/fixed-helper.c
@@ -0,0 +1,52 @@
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
+
+struct fixed_regulator_data {
+ struct fixed_voltage_config cfg;
+ struct regulator_init_data init_data;
+ struct platform_device pdev;
+};
+
+static void regulator_fixed_release(struct device *dev)
+{
+ struct fixed_regulator_data *data = container_of(dev,
+ struct fixed_regulator_data, pdev.dev);
+ kfree(data);
+}
+
+/**
+ * regulator_register_fixed - register a no-op fixed regulator
+ * @id: platform device id
+ * @supplies: consumers for this regulator
+ * @num_supplies: number of consumers
+ */
+struct platform_device *regulator_register_fixed(int id,
+ struct regulator_consumer_supply *supplies, int num_supplies)
+{
+ struct fixed_regulator_data *data;
+
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return NULL;
+
+ data->cfg.supply_name = "fixed-dummy";
+ data->cfg.microvolts = 0;
+ data->cfg.gpio = -EINVAL;
+ data->cfg.enabled_at_boot = 1;
+ data->cfg.init_data = &data->init_data;
+
+ data->init_data.constraints.always_on = 1;
+ data->init_data.consumer_supplies = supplies;
+ data->init_data.num_consumer_supplies = num_supplies;
+
+ data->pdev.name = "reg-fixed-voltage";
+ data->pdev.id = id;
+ data->pdev.dev.platform_data = &data->cfg;
+ data->pdev.dev.release = regulator_fixed_release;
+
+ platform_device_register(&data->pdev);
+
+ return &data->pdev;
+}
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/fixed.c b/ap/os/linux/linux-3.4.x/drivers/regulator/fixed.c
new file mode 100644
index 0000000..40f3803
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/fixed.c
@@ -0,0 +1,325 @@
+/*
+ * fixed.c
+ *
+ * Copyright 2008 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * Copyright (c) 2009 Nokia Corporation
+ * Roger Quadros <ext-roger.quadros@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This is useful for systems with mixed controllable and
+ * non-controllable regulators, as well as for allowing testing on
+ * systems with no controllable regulators.
+ */
+
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/fixed.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/regulator/machine.h>
+
+struct fixed_voltage_data {
+ struct regulator_desc desc;
+ struct regulator_dev *dev;
+ int microvolts;
+ int gpio;
+ unsigned startup_delay;
+ bool enable_high;
+ bool is_enabled;
+};
+
+
+/**
+ * of_get_fixed_voltage_config - extract fixed_voltage_config structure info
+ * @dev: device requesting for fixed_voltage_config
+ *
+ * Populates fixed_voltage_config structure by extracting data from device
+ * tree node, returns a pointer to the populated structure of NULL if memory
+ * alloc fails.
+ */
+static struct fixed_voltage_config *
+of_get_fixed_voltage_config(struct device *dev)
+{
+ struct fixed_voltage_config *config;
+ struct device_node *np = dev->of_node;
+ const __be32 *delay;
+ struct regulator_init_data *init_data;
+
+ config = devm_kzalloc(dev, sizeof(struct fixed_voltage_config),
+ GFP_KERNEL);
+ if (!config)
+ return NULL;
+
+ config->init_data = of_get_regulator_init_data(dev, dev->of_node);
+ if (!config->init_data)
+ return NULL;
+
+ init_data = config->init_data;
+ init_data->constraints.apply_uV = 0;
+
+ config->supply_name = init_data->constraints.name;
+ if (init_data->constraints.min_uV == init_data->constraints.max_uV) {
+ config->microvolts = init_data->constraints.min_uV;
+ } else {
+ dev_err(dev,
+ "Fixed regulator specified with variable voltages\n");
+ return NULL;
+ }
+
+ if (init_data->constraints.boot_on)
+ config->enabled_at_boot = true;
+
+ config->gpio = of_get_named_gpio(np, "gpio", 0);
+ delay = of_get_property(np, "startup-delay-us", NULL);
+ if (delay)
+ config->startup_delay = be32_to_cpu(*delay);
+
+ if (of_find_property(np, "enable-active-high", NULL))
+ config->enable_high = true;
+
+ return config;
+}
+
+static int fixed_voltage_is_enabled(struct regulator_dev *dev)
+{
+ struct fixed_voltage_data *data = rdev_get_drvdata(dev);
+
+ return data->is_enabled;
+}
+
+static int fixed_voltage_enable(struct regulator_dev *dev)
+{
+ struct fixed_voltage_data *data = rdev_get_drvdata(dev);
+
+ if (gpio_is_valid(data->gpio)) {
+ gpio_set_value_cansleep(data->gpio, data->enable_high);
+ data->is_enabled = true;
+ }
+
+ return 0;
+}
+
+static int fixed_voltage_disable(struct regulator_dev *dev)
+{
+ struct fixed_voltage_data *data = rdev_get_drvdata(dev);
+
+ if (gpio_is_valid(data->gpio)) {
+ gpio_set_value_cansleep(data->gpio, !data->enable_high);
+ data->is_enabled = false;
+ }
+
+ return 0;
+}
+
+static int fixed_voltage_enable_time(struct regulator_dev *dev)
+{
+ struct fixed_voltage_data *data = rdev_get_drvdata(dev);
+
+ return data->startup_delay;
+}
+
+static int fixed_voltage_get_voltage(struct regulator_dev *dev)
+{
+ struct fixed_voltage_data *data = rdev_get_drvdata(dev);
+
+ if (data->microvolts)
+ return data->microvolts;
+ else
+ return -EINVAL;
+}
+
+static int fixed_voltage_list_voltage(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct fixed_voltage_data *data = rdev_get_drvdata(dev);
+
+ if (selector != 0)
+ return -EINVAL;
+
+ return data->microvolts;
+}
+
+static struct regulator_ops fixed_voltage_ops = {
+ .is_enabled = fixed_voltage_is_enabled,
+ .enable = fixed_voltage_enable,
+ .disable = fixed_voltage_disable,
+ .enable_time = fixed_voltage_enable_time,
+ .get_voltage = fixed_voltage_get_voltage,
+ .list_voltage = fixed_voltage_list_voltage,
+};
+
+static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev)
+{
+ struct fixed_voltage_config *config;
+ struct fixed_voltage_data *drvdata;
+ int ret;
+
+ if (pdev->dev.of_node)
+ config = of_get_fixed_voltage_config(&pdev->dev);
+ else
+ config = pdev->dev.platform_data;
+
+ if (!config)
+ return -ENOMEM;
+
+ drvdata = kzalloc(sizeof(struct fixed_voltage_data), GFP_KERNEL);
+ if (drvdata == NULL) {
+ dev_err(&pdev->dev, "Failed to allocate device data\n");
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ drvdata->desc.name = kstrdup(config->supply_name, GFP_KERNEL);
+ if (drvdata->desc.name == NULL) {
+ dev_err(&pdev->dev, "Failed to allocate supply name\n");
+ ret = -ENOMEM;
+ goto err;
+ }
+ drvdata->desc.type = REGULATOR_VOLTAGE;
+ drvdata->desc.owner = THIS_MODULE;
+ drvdata->desc.ops = &fixed_voltage_ops;
+
+ if (config->microvolts)
+ drvdata->desc.n_voltages = 1;
+
+ drvdata->microvolts = config->microvolts;
+ drvdata->gpio = config->gpio;
+ drvdata->startup_delay = config->startup_delay;
+
+ if (gpio_is_valid(config->gpio)) {
+ drvdata->enable_high = config->enable_high;
+
+ /* FIXME: Remove below print warning
+ *
+ * config->gpio must be set to -EINVAL by platform code if
+ * GPIO control is not required. However, early adopters
+ * not requiring GPIO control may forget to initialize
+ * config->gpio to -EINVAL. This will cause GPIO 0 to be used
+ * for GPIO control.
+ *
+ * This warning will be removed once there are a couple of users
+ * for this driver.
+ */
+ if (!config->gpio)
+ dev_warn(&pdev->dev,
+ "using GPIO 0 for regulator enable control\n");
+
+ ret = gpio_request(config->gpio, config->supply_name);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "Could not obtain regulator enable GPIO %d: %d\n",
+ config->gpio, ret);
+ goto err_name;
+ }
+
+ /* set output direction without changing state
+ * to prevent glitch
+ */
+ drvdata->is_enabled = config->enabled_at_boot;
+ ret = drvdata->is_enabled ?
+ config->enable_high : !config->enable_high;
+
+ ret = gpio_direction_output(config->gpio, ret);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "Could not configure regulator enable GPIO %d direction: %d\n",
+ config->gpio, ret);
+ goto err_gpio;
+ }
+
+ } else {
+ /* Regulator without GPIO control is considered
+ * always enabled
+ */
+ drvdata->is_enabled = true;
+ }
+
+ drvdata->dev = regulator_register(&drvdata->desc, &pdev->dev,
+ config->init_data, drvdata,
+ pdev->dev.of_node);
+ if (IS_ERR(drvdata->dev)) {
+ ret = PTR_ERR(drvdata->dev);
+ dev_err(&pdev->dev, "Failed to register regulator: %d\n", ret);
+ goto err_gpio;
+ }
+
+ platform_set_drvdata(pdev, drvdata);
+
+ dev_dbg(&pdev->dev, "%s supplying %duV\n", drvdata->desc.name,
+ drvdata->microvolts);
+
+ return 0;
+
+err_gpio:
+ if (gpio_is_valid(config->gpio))
+ gpio_free(config->gpio);
+err_name:
+ kfree(drvdata->desc.name);
+err:
+ kfree(drvdata);
+ return ret;
+}
+
+static int __devexit reg_fixed_voltage_remove(struct platform_device *pdev)
+{
+ struct fixed_voltage_data *drvdata = platform_get_drvdata(pdev);
+
+ regulator_unregister(drvdata->dev);
+ if (gpio_is_valid(drvdata->gpio))
+ gpio_free(drvdata->gpio);
+ kfree(drvdata->desc.name);
+ kfree(drvdata);
+
+ return 0;
+}
+
+#if defined(CONFIG_OF)
+static const struct of_device_id fixed_of_match[] __devinitconst = {
+ { .compatible = "regulator-fixed", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, fixed_of_match);
+#else
+#define fixed_of_match NULL
+#endif
+
+static struct platform_driver regulator_fixed_voltage_driver = {
+ .probe = reg_fixed_voltage_probe,
+ .remove = __devexit_p(reg_fixed_voltage_remove),
+ .driver = {
+ .name = "reg-fixed-voltage",
+ .owner = THIS_MODULE,
+ .of_match_table = fixed_of_match,
+ },
+};
+
+static int __init regulator_fixed_voltage_init(void)
+{
+ return platform_driver_register(®ulator_fixed_voltage_driver);
+}
+subsys_initcall(regulator_fixed_voltage_init);
+
+static void __exit regulator_fixed_voltage_exit(void)
+{
+ platform_driver_unregister(®ulator_fixed_voltage_driver);
+}
+module_exit(regulator_fixed_voltage_exit);
+
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("Fixed voltage regulator");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:reg-fixed-voltage");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/gpio-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/gpio-regulator.c
new file mode 100644
index 0000000..42e1cb1
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/gpio-regulator.c
@@ -0,0 +1,358 @@
+/*
+ * gpio-regulator.c
+ *
+ * Copyright 2011 Heiko Stuebner <heiko@sntech.de>
+ *
+ * based on fixed.c
+ *
+ * Copyright 2008 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * Copyright (c) 2009 Nokia Corporation
+ * Roger Quadros <ext-roger.quadros@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This is useful for systems with mixed controllable and
+ * non-controllable regulators, as well as for allowing testing on
+ * systems with no controllable regulators.
+ */
+
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/gpio-regulator.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+
+struct gpio_regulator_data {
+ struct regulator_desc desc;
+ struct regulator_dev *dev;
+
+ int enable_gpio;
+ bool enable_high;
+ bool is_enabled;
+ unsigned startup_delay;
+
+ struct gpio *gpios;
+ int nr_gpios;
+
+ struct gpio_regulator_state *states;
+ int nr_states;
+
+ int state;
+};
+
+static int gpio_regulator_is_enabled(struct regulator_dev *dev)
+{
+ struct gpio_regulator_data *data = rdev_get_drvdata(dev);
+
+ return data->is_enabled;
+}
+
+static int gpio_regulator_enable(struct regulator_dev *dev)
+{
+ struct gpio_regulator_data *data = rdev_get_drvdata(dev);
+
+ if (gpio_is_valid(data->enable_gpio)) {
+ gpio_set_value_cansleep(data->enable_gpio, data->enable_high);
+ data->is_enabled = true;
+ }
+
+ return 0;
+}
+
+static int gpio_regulator_disable(struct regulator_dev *dev)
+{
+ struct gpio_regulator_data *data = rdev_get_drvdata(dev);
+
+ if (gpio_is_valid(data->enable_gpio)) {
+ gpio_set_value_cansleep(data->enable_gpio, !data->enable_high);
+ data->is_enabled = false;
+ }
+
+ return 0;
+}
+
+static int gpio_regulator_enable_time(struct regulator_dev *dev)
+{
+ struct gpio_regulator_data *data = rdev_get_drvdata(dev);
+
+ return data->startup_delay;
+}
+
+static int gpio_regulator_get_value(struct regulator_dev *dev)
+{
+ struct gpio_regulator_data *data = rdev_get_drvdata(dev);
+ int ptr;
+
+ for (ptr = 0; ptr < data->nr_states; ptr++)
+ if (data->states[ptr].gpios == data->state)
+ return data->states[ptr].value;
+
+ return -EINVAL;
+}
+
+static int gpio_regulator_set_value(struct regulator_dev *dev,
+ int min, int max)
+{
+ struct gpio_regulator_data *data = rdev_get_drvdata(dev);
+ int ptr, target, state;
+
+ target = -1;
+ for (ptr = 0; ptr < data->nr_states; ptr++)
+ if (data->states[ptr].value >= min &&
+ data->states[ptr].value <= max)
+ target = data->states[ptr].gpios;
+
+ if (target < 0)
+ return -EINVAL;
+
+ for (ptr = 0; ptr < data->nr_gpios; ptr++) {
+ state = (target & (1 << ptr)) >> ptr;
+ gpio_set_value(data->gpios[ptr].gpio, state);
+ }
+ data->state = target;
+
+ return 0;
+}
+
+static int gpio_regulator_set_voltage(struct regulator_dev *dev,
+ int min_uV, int max_uV,
+ unsigned *selector)
+{
+ return gpio_regulator_set_value(dev, min_uV, max_uV);
+}
+
+static int gpio_regulator_list_voltage(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct gpio_regulator_data *data = rdev_get_drvdata(dev);
+
+ if (selector >= data->nr_states)
+ return -EINVAL;
+
+ return data->states[selector].value;
+}
+
+static int gpio_regulator_set_current_limit(struct regulator_dev *dev,
+ int min_uA, int max_uA)
+{
+ return gpio_regulator_set_value(dev, min_uA, max_uA);
+}
+
+static struct regulator_ops gpio_regulator_voltage_ops = {
+ .is_enabled = gpio_regulator_is_enabled,
+ .enable = gpio_regulator_enable,
+ .disable = gpio_regulator_disable,
+ .enable_time = gpio_regulator_enable_time,
+ .get_voltage = gpio_regulator_get_value,
+ .set_voltage = gpio_regulator_set_voltage,
+ .list_voltage = gpio_regulator_list_voltage,
+};
+
+static struct regulator_ops gpio_regulator_current_ops = {
+ .is_enabled = gpio_regulator_is_enabled,
+ .enable = gpio_regulator_enable,
+ .disable = gpio_regulator_disable,
+ .enable_time = gpio_regulator_enable_time,
+ .get_current_limit = gpio_regulator_get_value,
+ .set_current_limit = gpio_regulator_set_current_limit,
+};
+
+static int __devinit gpio_regulator_probe(struct platform_device *pdev)
+{
+ struct gpio_regulator_config *config = pdev->dev.platform_data;
+ struct gpio_regulator_data *drvdata;
+ int ptr, ret, state;
+
+ drvdata = kzalloc(sizeof(struct gpio_regulator_data), GFP_KERNEL);
+ if (drvdata == NULL) {
+ dev_err(&pdev->dev, "Failed to allocate device data\n");
+ return -ENOMEM;
+ }
+
+ drvdata->desc.name = kstrdup(config->supply_name, GFP_KERNEL);
+ if (drvdata->desc.name == NULL) {
+ dev_err(&pdev->dev, "Failed to allocate supply name\n");
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ drvdata->gpios = kmemdup(config->gpios,
+ config->nr_gpios * sizeof(struct gpio),
+ GFP_KERNEL);
+ if (drvdata->gpios == NULL) {
+ dev_err(&pdev->dev, "Failed to allocate gpio data\n");
+ ret = -ENOMEM;
+ goto err_name;
+ }
+
+ drvdata->states = kmemdup(config->states,
+ config->nr_states *
+ sizeof(struct gpio_regulator_state),
+ GFP_KERNEL);
+ if (drvdata->states == NULL) {
+ dev_err(&pdev->dev, "Failed to allocate state data\n");
+ ret = -ENOMEM;
+ goto err_memgpio;
+ }
+ drvdata->nr_states = config->nr_states;
+
+ drvdata->desc.owner = THIS_MODULE;
+
+ /* handle regulator type*/
+ switch (config->type) {
+ case REGULATOR_VOLTAGE:
+ drvdata->desc.type = REGULATOR_VOLTAGE;
+ drvdata->desc.ops = &gpio_regulator_voltage_ops;
+ drvdata->desc.n_voltages = config->nr_states;
+ break;
+ case REGULATOR_CURRENT:
+ drvdata->desc.type = REGULATOR_CURRENT;
+ drvdata->desc.ops = &gpio_regulator_current_ops;
+ break;
+ default:
+ dev_err(&pdev->dev, "No regulator type set\n");
+ ret = -EINVAL;
+ goto err_memgpio;
+ break;
+ }
+
+ drvdata->enable_gpio = config->enable_gpio;
+ drvdata->startup_delay = config->startup_delay;
+
+ if (gpio_is_valid(config->enable_gpio)) {
+ drvdata->enable_high = config->enable_high;
+
+ ret = gpio_request(config->enable_gpio, config->supply_name);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "Could not obtain regulator enable GPIO %d: %d\n",
+ config->enable_gpio, ret);
+ goto err_memstate;
+ }
+
+ /* set output direction without changing state
+ * to prevent glitch
+ */
+ if (config->enabled_at_boot) {
+ drvdata->is_enabled = true;
+ ret = gpio_direction_output(config->enable_gpio,
+ config->enable_high);
+ } else {
+ drvdata->is_enabled = false;
+ ret = gpio_direction_output(config->enable_gpio,
+ !config->enable_high);
+ }
+
+ if (ret) {
+ dev_err(&pdev->dev,
+ "Could not configure regulator enable GPIO %d direction: %d\n",
+ config->enable_gpio, ret);
+ goto err_enablegpio;
+ }
+ } else {
+ /* Regulator without GPIO control is considered
+ * always enabled
+ */
+ drvdata->is_enabled = true;
+ }
+
+ drvdata->nr_gpios = config->nr_gpios;
+ ret = gpio_request_array(drvdata->gpios, drvdata->nr_gpios);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "Could not obtain regulator setting GPIOs: %d\n", ret);
+ goto err_enablegpio;
+ }
+
+ /* build initial state from gpio init data. */
+ state = 0;
+ for (ptr = 0; ptr < drvdata->nr_gpios; ptr++) {
+ if (config->gpios[ptr].flags & GPIOF_OUT_INIT_HIGH)
+ state |= (1 << ptr);
+ }
+ drvdata->state = state;
+
+ drvdata->dev = regulator_register(&drvdata->desc, &pdev->dev,
+ config->init_data, drvdata, NULL);
+ if (IS_ERR(drvdata->dev)) {
+ ret = PTR_ERR(drvdata->dev);
+ dev_err(&pdev->dev, "Failed to register regulator: %d\n", ret);
+ goto err_stategpio;
+ }
+
+ platform_set_drvdata(pdev, drvdata);
+
+ return 0;
+
+err_stategpio:
+ gpio_free_array(drvdata->gpios, drvdata->nr_gpios);
+err_enablegpio:
+ if (gpio_is_valid(config->enable_gpio))
+ gpio_free(config->enable_gpio);
+err_memstate:
+ kfree(drvdata->states);
+err_memgpio:
+ kfree(drvdata->gpios);
+err_name:
+ kfree(drvdata->desc.name);
+err:
+ kfree(drvdata);
+ return ret;
+}
+
+static int __devexit gpio_regulator_remove(struct platform_device *pdev)
+{
+ struct gpio_regulator_data *drvdata = platform_get_drvdata(pdev);
+
+ regulator_unregister(drvdata->dev);
+
+ gpio_free_array(drvdata->gpios, drvdata->nr_gpios);
+
+ kfree(drvdata->states);
+ kfree(drvdata->gpios);
+
+ if (gpio_is_valid(drvdata->enable_gpio))
+ gpio_free(drvdata->enable_gpio);
+
+ kfree(drvdata->desc.name);
+ kfree(drvdata);
+
+ return 0;
+}
+
+static struct platform_driver gpio_regulator_driver = {
+ .probe = gpio_regulator_probe,
+ .remove = __devexit_p(gpio_regulator_remove),
+ .driver = {
+ .name = "gpio-regulator",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init gpio_regulator_init(void)
+{
+ return platform_driver_register(&gpio_regulator_driver);
+}
+subsys_initcall(gpio_regulator_init);
+
+static void __exit gpio_regulator_exit(void)
+{
+ platform_driver_unregister(&gpio_regulator_driver);
+}
+module_exit(gpio_regulator_exit);
+
+MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>");
+MODULE_DESCRIPTION("gpio voltage regulator");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:gpio-regulator");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/isl6271a-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/isl6271a-regulator.c
new file mode 100644
index 0000000..775f5fd
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/isl6271a-regulator.c
@@ -0,0 +1,230 @@
+/*
+ * isl6271a-regulator.c
+ *
+ * Support for Intersil ISL6271A voltage regulator
+ *
+ * Copyright (C) 2010 Marek Vasut <marek.vasut@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
+ * whether express or implied; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+
+#define ISL6271A_VOLTAGE_MIN 850000
+#define ISL6271A_VOLTAGE_MAX 1600000
+#define ISL6271A_VOLTAGE_STEP 50000
+
+/* PMIC details */
+struct isl_pmic {
+ struct i2c_client *client;
+ struct regulator_dev *rdev[3];
+ struct mutex mtx;
+};
+
+static int isl6271a_get_voltage(struct regulator_dev *dev)
+{
+ struct isl_pmic *pmic = rdev_get_drvdata(dev);
+ int idx, data;
+
+ mutex_lock(&pmic->mtx);
+
+ idx = i2c_smbus_read_byte(pmic->client);
+ if (idx < 0) {
+ dev_err(&pmic->client->dev, "Error getting voltage\n");
+ data = idx;
+ goto out;
+ }
+
+ /* Convert the data from chip to microvolts */
+ data = ISL6271A_VOLTAGE_MIN + (ISL6271A_VOLTAGE_STEP * (idx & 0xf));
+
+out:
+ mutex_unlock(&pmic->mtx);
+ return data;
+}
+
+static int isl6271a_set_voltage(struct regulator_dev *dev,
+ int minuV, int maxuV,
+ unsigned *selector)
+{
+ struct isl_pmic *pmic = rdev_get_drvdata(dev);
+ int err, data;
+
+ if (minuV < ISL6271A_VOLTAGE_MIN || minuV > ISL6271A_VOLTAGE_MAX)
+ return -EINVAL;
+ if (maxuV < ISL6271A_VOLTAGE_MIN || maxuV > ISL6271A_VOLTAGE_MAX)
+ return -EINVAL;
+
+ data = DIV_ROUND_UP(minuV - ISL6271A_VOLTAGE_MIN,
+ ISL6271A_VOLTAGE_STEP);
+ *selector = data;
+
+ mutex_lock(&pmic->mtx);
+
+ err = i2c_smbus_write_byte(pmic->client, data);
+ if (err < 0)
+ dev_err(&pmic->client->dev, "Error setting voltage\n");
+
+ mutex_unlock(&pmic->mtx);
+ return err;
+}
+
+static int isl6271a_list_voltage(struct regulator_dev *dev, unsigned selector)
+{
+ return ISL6271A_VOLTAGE_MIN + (ISL6271A_VOLTAGE_STEP * selector);
+}
+
+static struct regulator_ops isl_core_ops = {
+ .get_voltage = isl6271a_get_voltage,
+ .set_voltage = isl6271a_set_voltage,
+ .list_voltage = isl6271a_list_voltage,
+};
+
+static int isl6271a_get_fixed_voltage(struct regulator_dev *dev)
+{
+ int id = rdev_get_id(dev);
+ return (id == 1) ? 1100000 : 1300000;
+}
+
+static int isl6271a_list_fixed_voltage(struct regulator_dev *dev, unsigned selector)
+{
+ int id = rdev_get_id(dev);
+ return (id == 1) ? 1100000 : 1300000;
+}
+
+static struct regulator_ops isl_fixed_ops = {
+ .get_voltage = isl6271a_get_fixed_voltage,
+ .list_voltage = isl6271a_list_fixed_voltage,
+};
+
+static struct regulator_desc isl_rd[] = {
+ {
+ .name = "Core Buck",
+ .id = 0,
+ .n_voltages = 16,
+ .ops = &isl_core_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "LDO1",
+ .id = 1,
+ .n_voltages = 1,
+ .ops = &isl_fixed_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "LDO2",
+ .id = 2,
+ .n_voltages = 1,
+ .ops = &isl_fixed_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __devinit isl6271a_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct regulator_init_data *init_data = i2c->dev.platform_data;
+ struct isl_pmic *pmic;
+ int err, i;
+
+ if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -EIO;
+
+ if (!init_data) {
+ dev_err(&i2c->dev, "no platform data supplied\n");
+ return -EIO;
+ }
+
+ pmic = kzalloc(sizeof(struct isl_pmic), GFP_KERNEL);
+ if (!pmic)
+ return -ENOMEM;
+
+ pmic->client = i2c;
+
+ mutex_init(&pmic->mtx);
+
+ for (i = 0; i < 3; i++) {
+ pmic->rdev[i] = regulator_register(&isl_rd[i], &i2c->dev,
+ init_data, pmic, NULL);
+ if (IS_ERR(pmic->rdev[i])) {
+ dev_err(&i2c->dev, "failed to register %s\n", id->name);
+ err = PTR_ERR(pmic->rdev[i]);
+ goto error;
+ }
+ }
+
+ i2c_set_clientdata(i2c, pmic);
+
+ return 0;
+
+error:
+ while (--i >= 0)
+ regulator_unregister(pmic->rdev[i]);
+
+ kfree(pmic);
+ return err;
+}
+
+static int __devexit isl6271a_remove(struct i2c_client *i2c)
+{
+ struct isl_pmic *pmic = i2c_get_clientdata(i2c);
+ int i;
+
+ for (i = 0; i < 3; i++)
+ regulator_unregister(pmic->rdev[i]);
+
+ kfree(pmic);
+
+ return 0;
+}
+
+static const struct i2c_device_id isl6271a_id[] = {
+ {.name = "isl6271a", 0 },
+ { },
+};
+
+MODULE_DEVICE_TABLE(i2c, isl6271a_id);
+
+static struct i2c_driver isl6271a_i2c_driver = {
+ .driver = {
+ .name = "isl6271a",
+ .owner = THIS_MODULE,
+ },
+ .probe = isl6271a_probe,
+ .remove = __devexit_p(isl6271a_remove),
+ .id_table = isl6271a_id,
+};
+
+static int __init isl6271a_init(void)
+{
+ return i2c_add_driver(&isl6271a_i2c_driver);
+}
+
+static void __exit isl6271a_cleanup(void)
+{
+ i2c_del_driver(&isl6271a_i2c_driver);
+}
+
+subsys_initcall(isl6271a_init);
+module_exit(isl6271a_cleanup);
+
+MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
+MODULE_DESCRIPTION("Intersil ISL6271A voltage regulator driver");
+MODULE_LICENSE("GPL v2");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/lp3971.c b/ap/os/linux/linux-3.4.x/drivers/regulator/lp3971.c
new file mode 100644
index 0000000..0cfabd3
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/lp3971.c
@@ -0,0 +1,568 @@
+/*
+ * Regulator driver for National Semiconductors LP3971 PMIC chip
+ *
+ * Copyright (C) 2009 Samsung Electronics
+ * Author: Marek Szyprowski <m.szyprowski@samsung.com>
+ *
+ * Based on wm8350.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/bug.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/lp3971.h>
+#include <linux/slab.h>
+
+struct lp3971 {
+ struct device *dev;
+ struct mutex io_lock;
+ struct i2c_client *i2c;
+ int num_regulators;
+ struct regulator_dev **rdev;
+};
+
+static u8 lp3971_reg_read(struct lp3971 *lp3971, u8 reg);
+static int lp3971_set_bits(struct lp3971 *lp3971, u8 reg, u16 mask, u16 val);
+
+#define LP3971_SYS_CONTROL1_REG 0x07
+
+/* System control register 1 initial value,
+ bits 4 and 5 are EPROM programmable */
+#define SYS_CONTROL1_INIT_VAL 0x40
+#define SYS_CONTROL1_INIT_MASK 0xCF
+
+#define LP3971_BUCK_VOL_ENABLE_REG 0x10
+#define LP3971_BUCK_VOL_CHANGE_REG 0x20
+
+/* Voltage control registers shift:
+ LP3971_BUCK1 -> 0
+ LP3971_BUCK2 -> 4
+ LP3971_BUCK3 -> 6
+*/
+#define BUCK_VOL_CHANGE_SHIFT(x) (((!!x) << 2) | (x & ~0x01))
+#define BUCK_VOL_CHANGE_FLAG_GO 0x01
+#define BUCK_VOL_CHANGE_FLAG_TARGET 0x02
+#define BUCK_VOL_CHANGE_FLAG_MASK 0x03
+
+#define LP3971_BUCK1_BASE 0x23
+#define LP3971_BUCK2_BASE 0x29
+#define LP3971_BUCK3_BASE 0x32
+
+static const int buck_base_addr[] = {
+ LP3971_BUCK1_BASE,
+ LP3971_BUCK2_BASE,
+ LP3971_BUCK3_BASE,
+};
+
+#define LP3971_BUCK_TARGET_VOL1_REG(x) (buck_base_addr[x])
+#define LP3971_BUCK_TARGET_VOL2_REG(x) (buck_base_addr[x]+1)
+
+static const int buck_voltage_map[] = {
+ 0, 800, 850, 900, 950, 1000, 1050, 1100,
+ 1150, 1200, 1250, 1300, 1350, 1400, 1450, 1500,
+ 1550, 1600, 1650, 1700, 1800, 1900, 2500, 2800,
+ 3000, 3300,
+};
+
+#define BUCK_TARGET_VOL_MASK 0x3f
+#define BUCK_TARGET_VOL_MIN_IDX 0x01
+#define BUCK_TARGET_VOL_MAX_IDX 0x19
+
+#define LP3971_BUCK_RAMP_REG(x) (buck_base_addr[x]+2)
+
+#define LP3971_LDO_ENABLE_REG 0x12
+#define LP3971_LDO_VOL_CONTR_BASE 0x39
+
+/* Voltage control registers:
+ LP3971_LDO1 -> LP3971_LDO_VOL_CONTR_BASE + 0
+ LP3971_LDO2 -> LP3971_LDO_VOL_CONTR_BASE + 0
+ LP3971_LDO3 -> LP3971_LDO_VOL_CONTR_BASE + 1
+ LP3971_LDO4 -> LP3971_LDO_VOL_CONTR_BASE + 1
+ LP3971_LDO5 -> LP3971_LDO_VOL_CONTR_BASE + 2
+*/
+#define LP3971_LDO_VOL_CONTR_REG(x) (LP3971_LDO_VOL_CONTR_BASE + (x >> 1))
+
+/* Voltage control registers shift:
+ LP3971_LDO1 -> 0, LP3971_LDO2 -> 4
+ LP3971_LDO3 -> 0, LP3971_LDO4 -> 4
+ LP3971_LDO5 -> 0
+*/
+#define LDO_VOL_CONTR_SHIFT(x) ((x & 1) << 2)
+#define LDO_VOL_CONTR_MASK 0x0f
+
+static const int ldo45_voltage_map[] = {
+ 1000, 1050, 1100, 1150, 1200, 1250, 1300, 1350,
+ 1400, 1500, 1800, 1900, 2500, 2800, 3000, 3300,
+};
+
+static const int ldo123_voltage_map[] = {
+ 1800, 1900, 2000, 2100, 2200, 2300, 2400, 2500,
+ 2600, 2700, 2800, 2900, 3000, 3100, 3200, 3300,
+};
+
+static const int *ldo_voltage_map[] = {
+ ldo123_voltage_map, /* LDO1 */
+ ldo123_voltage_map, /* LDO2 */
+ ldo123_voltage_map, /* LDO3 */
+ ldo45_voltage_map, /* LDO4 */
+ ldo45_voltage_map, /* LDO5 */
+};
+
+#define LDO_VOL_VALUE_MAP(x) (ldo_voltage_map[(x - LP3971_LDO1)])
+
+#define LDO_VOL_MIN_IDX 0x00
+#define LDO_VOL_MAX_IDX 0x0f
+
+static int lp3971_ldo_list_voltage(struct regulator_dev *dev, unsigned index)
+{
+ int ldo = rdev_get_id(dev) - LP3971_LDO1;
+ return 1000 * LDO_VOL_VALUE_MAP(ldo)[index];
+}
+
+static int lp3971_ldo_is_enabled(struct regulator_dev *dev)
+{
+ struct lp3971 *lp3971 = rdev_get_drvdata(dev);
+ int ldo = rdev_get_id(dev) - LP3971_LDO1;
+ u16 mask = 1 << (1 + ldo);
+ u16 val;
+
+ val = lp3971_reg_read(lp3971, LP3971_LDO_ENABLE_REG);
+ return (val & mask) != 0;
+}
+
+static int lp3971_ldo_enable(struct regulator_dev *dev)
+{
+ struct lp3971 *lp3971 = rdev_get_drvdata(dev);
+ int ldo = rdev_get_id(dev) - LP3971_LDO1;
+ u16 mask = 1 << (1 + ldo);
+
+ return lp3971_set_bits(lp3971, LP3971_LDO_ENABLE_REG, mask, mask);
+}
+
+static int lp3971_ldo_disable(struct regulator_dev *dev)
+{
+ struct lp3971 *lp3971 = rdev_get_drvdata(dev);
+ int ldo = rdev_get_id(dev) - LP3971_LDO1;
+ u16 mask = 1 << (1 + ldo);
+
+ return lp3971_set_bits(lp3971, LP3971_LDO_ENABLE_REG, mask, 0);
+}
+
+static int lp3971_ldo_get_voltage(struct regulator_dev *dev)
+{
+ struct lp3971 *lp3971 = rdev_get_drvdata(dev);
+ int ldo = rdev_get_id(dev) - LP3971_LDO1;
+ u16 val, reg;
+
+ reg = lp3971_reg_read(lp3971, LP3971_LDO_VOL_CONTR_REG(ldo));
+ val = (reg >> LDO_VOL_CONTR_SHIFT(ldo)) & LDO_VOL_CONTR_MASK;
+
+ return 1000 * LDO_VOL_VALUE_MAP(ldo)[val];
+}
+
+static int lp3971_ldo_set_voltage(struct regulator_dev *dev,
+ int min_uV, int max_uV,
+ unsigned int *selector)
+{
+ struct lp3971 *lp3971 = rdev_get_drvdata(dev);
+ int ldo = rdev_get_id(dev) - LP3971_LDO1;
+ int min_vol = min_uV / 1000, max_vol = max_uV / 1000;
+ const int *vol_map = LDO_VOL_VALUE_MAP(ldo);
+ u16 val;
+
+ if (min_vol < vol_map[LDO_VOL_MIN_IDX] ||
+ min_vol > vol_map[LDO_VOL_MAX_IDX])
+ return -EINVAL;
+
+ for (val = LDO_VOL_MIN_IDX; val <= LDO_VOL_MAX_IDX; val++)
+ if (vol_map[val] >= min_vol)
+ break;
+
+ if (val > LDO_VOL_MAX_IDX || vol_map[val] > max_vol)
+ return -EINVAL;
+
+ *selector = val;
+
+ return lp3971_set_bits(lp3971, LP3971_LDO_VOL_CONTR_REG(ldo),
+ LDO_VOL_CONTR_MASK << LDO_VOL_CONTR_SHIFT(ldo),
+ val << LDO_VOL_CONTR_SHIFT(ldo));
+}
+
+static struct regulator_ops lp3971_ldo_ops = {
+ .list_voltage = lp3971_ldo_list_voltage,
+ .is_enabled = lp3971_ldo_is_enabled,
+ .enable = lp3971_ldo_enable,
+ .disable = lp3971_ldo_disable,
+ .get_voltage = lp3971_ldo_get_voltage,
+ .set_voltage = lp3971_ldo_set_voltage,
+};
+
+static int lp3971_dcdc_list_voltage(struct regulator_dev *dev, unsigned index)
+{
+ return 1000 * buck_voltage_map[index];
+}
+
+static int lp3971_dcdc_is_enabled(struct regulator_dev *dev)
+{
+ struct lp3971 *lp3971 = rdev_get_drvdata(dev);
+ int buck = rdev_get_id(dev) - LP3971_DCDC1;
+ u16 mask = 1 << (buck * 2);
+ u16 val;
+
+ val = lp3971_reg_read(lp3971, LP3971_BUCK_VOL_ENABLE_REG);
+ return (val & mask) != 0;
+}
+
+static int lp3971_dcdc_enable(struct regulator_dev *dev)
+{
+ struct lp3971 *lp3971 = rdev_get_drvdata(dev);
+ int buck = rdev_get_id(dev) - LP3971_DCDC1;
+ u16 mask = 1 << (buck * 2);
+
+ return lp3971_set_bits(lp3971, LP3971_BUCK_VOL_ENABLE_REG, mask, mask);
+}
+
+static int lp3971_dcdc_disable(struct regulator_dev *dev)
+{
+ struct lp3971 *lp3971 = rdev_get_drvdata(dev);
+ int buck = rdev_get_id(dev) - LP3971_DCDC1;
+ u16 mask = 1 << (buck * 2);
+
+ return lp3971_set_bits(lp3971, LP3971_BUCK_VOL_ENABLE_REG, mask, 0);
+}
+
+static int lp3971_dcdc_get_voltage(struct regulator_dev *dev)
+{
+ struct lp3971 *lp3971 = rdev_get_drvdata(dev);
+ int buck = rdev_get_id(dev) - LP3971_DCDC1;
+ u16 reg;
+ int val;
+
+ reg = lp3971_reg_read(lp3971, LP3971_BUCK_TARGET_VOL1_REG(buck));
+ reg &= BUCK_TARGET_VOL_MASK;
+
+ if (reg <= BUCK_TARGET_VOL_MAX_IDX)
+ val = 1000 * buck_voltage_map[reg];
+ else {
+ val = 0;
+ dev_warn(&dev->dev, "chip reported incorrect voltage value.\n");
+ }
+
+ return val;
+}
+
+static int lp3971_dcdc_set_voltage(struct regulator_dev *dev,
+ int min_uV, int max_uV,
+ unsigned int *selector)
+{
+ struct lp3971 *lp3971 = rdev_get_drvdata(dev);
+ int buck = rdev_get_id(dev) - LP3971_DCDC1;
+ int min_vol = min_uV / 1000, max_vol = max_uV / 1000;
+ const int *vol_map = buck_voltage_map;
+ u16 val;
+ int ret;
+
+ if (min_vol < vol_map[BUCK_TARGET_VOL_MIN_IDX] ||
+ min_vol > vol_map[BUCK_TARGET_VOL_MAX_IDX])
+ return -EINVAL;
+
+ for (val = BUCK_TARGET_VOL_MIN_IDX; val <= BUCK_TARGET_VOL_MAX_IDX;
+ val++)
+ if (vol_map[val] >= min_vol)
+ break;
+
+ if (val > BUCK_TARGET_VOL_MAX_IDX || vol_map[val] > max_vol)
+ return -EINVAL;
+
+ *selector = val;
+
+ ret = lp3971_set_bits(lp3971, LP3971_BUCK_TARGET_VOL1_REG(buck),
+ BUCK_TARGET_VOL_MASK, val);
+ if (ret)
+ return ret;
+
+ ret = lp3971_set_bits(lp3971, LP3971_BUCK_VOL_CHANGE_REG,
+ BUCK_VOL_CHANGE_FLAG_MASK << BUCK_VOL_CHANGE_SHIFT(buck),
+ BUCK_VOL_CHANGE_FLAG_GO << BUCK_VOL_CHANGE_SHIFT(buck));
+ if (ret)
+ return ret;
+
+ return lp3971_set_bits(lp3971, LP3971_BUCK_VOL_CHANGE_REG,
+ BUCK_VOL_CHANGE_FLAG_MASK << BUCK_VOL_CHANGE_SHIFT(buck),
+ 0 << BUCK_VOL_CHANGE_SHIFT(buck));
+}
+
+static struct regulator_ops lp3971_dcdc_ops = {
+ .list_voltage = lp3971_dcdc_list_voltage,
+ .is_enabled = lp3971_dcdc_is_enabled,
+ .enable = lp3971_dcdc_enable,
+ .disable = lp3971_dcdc_disable,
+ .get_voltage = lp3971_dcdc_get_voltage,
+ .set_voltage = lp3971_dcdc_set_voltage,
+};
+
+static struct regulator_desc regulators[] = {
+ {
+ .name = "LDO1",
+ .id = LP3971_LDO1,
+ .ops = &lp3971_ldo_ops,
+ .n_voltages = ARRAY_SIZE(ldo123_voltage_map),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO2",
+ .id = LP3971_LDO2,
+ .ops = &lp3971_ldo_ops,
+ .n_voltages = ARRAY_SIZE(ldo123_voltage_map),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO3",
+ .id = LP3971_LDO3,
+ .ops = &lp3971_ldo_ops,
+ .n_voltages = ARRAY_SIZE(ldo123_voltage_map),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO4",
+ .id = LP3971_LDO4,
+ .ops = &lp3971_ldo_ops,
+ .n_voltages = ARRAY_SIZE(ldo45_voltage_map),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO5",
+ .id = LP3971_LDO5,
+ .ops = &lp3971_ldo_ops,
+ .n_voltages = ARRAY_SIZE(ldo45_voltage_map),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "DCDC1",
+ .id = LP3971_DCDC1,
+ .ops = &lp3971_dcdc_ops,
+ .n_voltages = ARRAY_SIZE(buck_voltage_map),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "DCDC2",
+ .id = LP3971_DCDC2,
+ .ops = &lp3971_dcdc_ops,
+ .n_voltages = ARRAY_SIZE(buck_voltage_map),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "DCDC3",
+ .id = LP3971_DCDC3,
+ .ops = &lp3971_dcdc_ops,
+ .n_voltages = ARRAY_SIZE(buck_voltage_map),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+};
+
+static int lp3971_i2c_read(struct i2c_client *i2c, char reg, int count,
+ u16 *dest)
+{
+ int ret;
+
+ if (count != 1)
+ return -EIO;
+ ret = i2c_smbus_read_byte_data(i2c, reg);
+ if (ret < 0)
+ return -EIO;
+
+ *dest = ret;
+ return 0;
+}
+
+static int lp3971_i2c_write(struct i2c_client *i2c, char reg, int count,
+ const u16 *src)
+{
+ if (count != 1)
+ return -EIO;
+ return i2c_smbus_write_byte_data(i2c, reg, *src);
+}
+
+static u8 lp3971_reg_read(struct lp3971 *lp3971, u8 reg)
+{
+ u16 val = 0;
+
+ mutex_lock(&lp3971->io_lock);
+
+ lp3971_i2c_read(lp3971->i2c, reg, 1, &val);
+
+ dev_dbg(lp3971->dev, "reg read 0x%02x -> 0x%02x\n", (int)reg,
+ (unsigned)val&0xff);
+
+ mutex_unlock(&lp3971->io_lock);
+
+ return val & 0xff;
+}
+
+static int lp3971_set_bits(struct lp3971 *lp3971, u8 reg, u16 mask, u16 val)
+{
+ u16 tmp;
+ int ret;
+
+ mutex_lock(&lp3971->io_lock);
+
+ ret = lp3971_i2c_read(lp3971->i2c, reg, 1, &tmp);
+ tmp = (tmp & ~mask) | val;
+ if (ret == 0) {
+ ret = lp3971_i2c_write(lp3971->i2c, reg, 1, &tmp);
+ dev_dbg(lp3971->dev, "reg write 0x%02x -> 0x%02x\n", (int)reg,
+ (unsigned)val&0xff);
+ }
+ mutex_unlock(&lp3971->io_lock);
+
+ return ret;
+}
+
+static int __devinit setup_regulators(struct lp3971 *lp3971,
+ struct lp3971_platform_data *pdata)
+{
+ int i, err;
+
+ lp3971->num_regulators = pdata->num_regulators;
+ lp3971->rdev = kcalloc(pdata->num_regulators,
+ sizeof(struct regulator_dev *), GFP_KERNEL);
+ if (!lp3971->rdev) {
+ err = -ENOMEM;
+ goto err_nomem;
+ }
+
+ /* Instantiate the regulators */
+ for (i = 0; i < pdata->num_regulators; i++) {
+ struct lp3971_regulator_subdev *reg = &pdata->regulators[i];
+ lp3971->rdev[i] = regulator_register(®ulators[reg->id],
+ lp3971->dev, reg->initdata, lp3971, NULL);
+
+ if (IS_ERR(lp3971->rdev[i])) {
+ err = PTR_ERR(lp3971->rdev[i]);
+ dev_err(lp3971->dev, "regulator init failed: %d\n",
+ err);
+ goto error;
+ }
+ }
+
+ return 0;
+
+error:
+ while (--i >= 0)
+ regulator_unregister(lp3971->rdev[i]);
+ kfree(lp3971->rdev);
+ lp3971->rdev = NULL;
+err_nomem:
+ return err;
+}
+
+static int __devinit lp3971_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct lp3971 *lp3971;
+ struct lp3971_platform_data *pdata = i2c->dev.platform_data;
+ int ret;
+ u16 val;
+
+ if (!pdata) {
+ dev_dbg(&i2c->dev, "No platform init data supplied\n");
+ return -ENODEV;
+ }
+
+ lp3971 = kzalloc(sizeof(struct lp3971), GFP_KERNEL);
+ if (lp3971 == NULL)
+ return -ENOMEM;
+
+ lp3971->i2c = i2c;
+ lp3971->dev = &i2c->dev;
+
+ mutex_init(&lp3971->io_lock);
+
+ /* Detect LP3971 */
+ ret = lp3971_i2c_read(i2c, LP3971_SYS_CONTROL1_REG, 1, &val);
+ if (ret == 0 && (val & SYS_CONTROL1_INIT_MASK) != SYS_CONTROL1_INIT_VAL)
+ ret = -ENODEV;
+ if (ret < 0) {
+ dev_err(&i2c->dev, "failed to detect device\n");
+ goto err_detect;
+ }
+
+ ret = setup_regulators(lp3971, pdata);
+ if (ret < 0)
+ goto err_detect;
+
+ i2c_set_clientdata(i2c, lp3971);
+ return 0;
+
+err_detect:
+ kfree(lp3971);
+ return ret;
+}
+
+static int __devexit lp3971_i2c_remove(struct i2c_client *i2c)
+{
+ struct lp3971 *lp3971 = i2c_get_clientdata(i2c);
+ int i;
+
+ for (i = 0; i < lp3971->num_regulators; i++)
+ regulator_unregister(lp3971->rdev[i]);
+
+ kfree(lp3971->rdev);
+ kfree(lp3971);
+
+ return 0;
+}
+
+static const struct i2c_device_id lp3971_i2c_id[] = {
+ { "lp3971", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, lp3971_i2c_id);
+
+static struct i2c_driver lp3971_i2c_driver = {
+ .driver = {
+ .name = "LP3971",
+ .owner = THIS_MODULE,
+ },
+ .probe = lp3971_i2c_probe,
+ .remove = __devexit_p(lp3971_i2c_remove),
+ .id_table = lp3971_i2c_id,
+};
+
+static int __init lp3971_module_init(void)
+{
+ int ret;
+
+ ret = i2c_add_driver(&lp3971_i2c_driver);
+ if (ret != 0)
+ pr_err("Failed to register I2C driver: %d\n", ret);
+
+ return ret;
+}
+module_init(lp3971_module_init);
+
+static void __exit lp3971_module_exit(void)
+{
+ i2c_del_driver(&lp3971_i2c_driver);
+}
+module_exit(lp3971_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Marek Szyprowski <m.szyprowski@samsung.com>");
+MODULE_DESCRIPTION("LP3971 PMIC driver");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/lp3972.c b/ap/os/linux/linux-3.4.x/drivers/regulator/lp3972.c
new file mode 100644
index 0000000..49a15ee
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/lp3972.c
@@ -0,0 +1,667 @@
+/*
+ * Regulator driver for National Semiconductors LP3972 PMIC chip
+ *
+ * Based on lp3971.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/bug.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/lp3972.h>
+#include <linux/slab.h>
+
+struct lp3972 {
+ struct device *dev;
+ struct mutex io_lock;
+ struct i2c_client *i2c;
+ int num_regulators;
+ struct regulator_dev **rdev;
+};
+
+/* LP3972 Control Registers */
+#define LP3972_SCR_REG 0x07
+#define LP3972_OVER1_REG 0x10
+#define LP3972_OVSR1_REG 0x11
+#define LP3972_OVER2_REG 0x12
+#define LP3972_OVSR2_REG 0x13
+#define LP3972_VCC1_REG 0x20
+#define LP3972_ADTV1_REG 0x23
+#define LP3972_ADTV2_REG 0x24
+#define LP3972_AVRC_REG 0x25
+#define LP3972_CDTC1_REG 0x26
+#define LP3972_CDTC2_REG 0x27
+#define LP3972_SDTV1_REG 0x29
+#define LP3972_SDTV2_REG 0x2A
+#define LP3972_MDTV1_REG 0x32
+#define LP3972_MDTV2_REG 0x33
+#define LP3972_L2VCR_REG 0x39
+#define LP3972_L34VCR_REG 0x3A
+#define LP3972_SCR1_REG 0x80
+#define LP3972_SCR2_REG 0x81
+#define LP3972_OEN3_REG 0x82
+#define LP3972_OSR3_REG 0x83
+#define LP3972_LOER4_REG 0x84
+#define LP3972_B2TV_REG 0x85
+#define LP3972_B3TV_REG 0x86
+#define LP3972_B32RC_REG 0x87
+#define LP3972_ISRA_REG 0x88
+#define LP3972_BCCR_REG 0x89
+#define LP3972_II1RR_REG 0x8E
+#define LP3972_II2RR_REG 0x8F
+
+#define LP3972_SYS_CONTROL1_REG LP3972_SCR1_REG
+/* System control register 1 initial value,
+ * bits 5, 6 and 7 are EPROM programmable */
+#define SYS_CONTROL1_INIT_VAL 0x02
+#define SYS_CONTROL1_INIT_MASK 0x1F
+
+#define LP3972_VOL_CHANGE_REG LP3972_VCC1_REG
+#define LP3972_VOL_CHANGE_FLAG_GO 0x01
+#define LP3972_VOL_CHANGE_FLAG_MASK 0x03
+
+/* LDO output enable mask */
+#define LP3972_OEN3_L1EN BIT(0)
+#define LP3972_OVER2_LDO2_EN BIT(2)
+#define LP3972_OVER2_LDO3_EN BIT(3)
+#define LP3972_OVER2_LDO4_EN BIT(4)
+#define LP3972_OVER1_S_EN BIT(2)
+
+static const int ldo1_voltage_map[] = {
+ 1700, 1725, 1750, 1775, 1800, 1825, 1850, 1875,
+ 1900, 1925, 1950, 1975, 2000,
+};
+
+static const int ldo23_voltage_map[] = {
+ 1800, 1900, 2000, 2100, 2200, 2300, 2400, 2500,
+ 2600, 2700, 2800, 2900, 3000, 3100, 3200, 3300,
+};
+
+static const int ldo4_voltage_map[] = {
+ 1000, 1050, 1100, 1150, 1200, 1250, 1300, 1350,
+ 1400, 1500, 1800, 1900, 2500, 2800, 3000, 3300,
+};
+
+static const int ldo5_voltage_map[] = {
+ 0, 0, 0, 0, 0, 850, 875, 900,
+ 925, 950, 975, 1000, 1025, 1050, 1075, 1100,
+ 1125, 1150, 1175, 1200, 1225, 1250, 1275, 1300,
+ 1325, 1350, 1375, 1400, 1425, 1450, 1475, 1500,
+};
+
+static const int buck1_voltage_map[] = {
+ 725, 750, 775, 800, 825, 850, 875, 900,
+ 925, 950, 975, 1000, 1025, 1050, 1075, 1100,
+ 1125, 1150, 1175, 1200, 1225, 1250, 1275, 1300,
+ 1325, 1350, 1375, 1400, 1425, 1450, 1475, 1500,
+};
+
+static const int buck23_voltage_map[] = {
+ 0, 800, 850, 900, 950, 1000, 1050, 1100,
+ 1150, 1200, 1250, 1300, 1350, 1400, 1450, 1500,
+ 1550, 1600, 1650, 1700, 1800, 1900, 2500, 2800,
+ 3000, 3300,
+};
+
+static const int *ldo_voltage_map[] = {
+ ldo1_voltage_map,
+ ldo23_voltage_map,
+ ldo23_voltage_map,
+ ldo4_voltage_map,
+ ldo5_voltage_map,
+};
+
+static const int *buck_voltage_map[] = {
+ buck1_voltage_map,
+ buck23_voltage_map,
+ buck23_voltage_map,
+};
+
+static const int ldo_output_enable_mask[] = {
+ LP3972_OEN3_L1EN,
+ LP3972_OVER2_LDO2_EN,
+ LP3972_OVER2_LDO3_EN,
+ LP3972_OVER2_LDO4_EN,
+ LP3972_OVER1_S_EN,
+};
+
+static const int ldo_output_enable_addr[] = {
+ LP3972_OEN3_REG,
+ LP3972_OVER2_REG,
+ LP3972_OVER2_REG,
+ LP3972_OVER2_REG,
+ LP3972_OVER1_REG,
+};
+
+static const int ldo_vol_ctl_addr[] = {
+ LP3972_MDTV1_REG,
+ LP3972_L2VCR_REG,
+ LP3972_L34VCR_REG,
+ LP3972_L34VCR_REG,
+ LP3972_SDTV1_REG,
+};
+
+static const int buck_vol_enable_addr[] = {
+ LP3972_OVER1_REG,
+ LP3972_OEN3_REG,
+ LP3972_OEN3_REG,
+};
+
+static const int buck_base_addr[] = {
+ LP3972_ADTV1_REG,
+ LP3972_B2TV_REG,
+ LP3972_B3TV_REG,
+};
+
+#define LP3972_LDO_VOL_VALUE_MAP(x) (ldo_voltage_map[x])
+#define LP3972_LDO_OUTPUT_ENABLE_MASK(x) (ldo_output_enable_mask[x])
+#define LP3972_LDO_OUTPUT_ENABLE_REG(x) (ldo_output_enable_addr[x])
+
+/* LDO voltage control registers shift:
+ LP3972_LDO1 -> 0, LP3972_LDO2 -> 4
+ LP3972_LDO3 -> 0, LP3972_LDO4 -> 4
+ LP3972_LDO5 -> 0
+*/
+#define LP3972_LDO_VOL_CONTR_SHIFT(x) (((x) & 1) << 2)
+#define LP3972_LDO_VOL_CONTR_REG(x) (ldo_vol_ctl_addr[x])
+#define LP3972_LDO_VOL_CHANGE_SHIFT(x) ((x) ? 4 : 6)
+
+#define LP3972_LDO_VOL_MASK(x) (((x) % 4) ? 0x0f : 0x1f)
+#define LP3972_LDO_VOL_MIN_IDX(x) (((x) == 4) ? 0x05 : 0x00)
+#define LP3972_LDO_VOL_MAX_IDX(x) ((x) ? (((x) == 4) ? 0x1f : 0x0f) : 0x0c)
+
+#define LP3972_BUCK_VOL_VALUE_MAP(x) (buck_voltage_map[x])
+#define LP3972_BUCK_VOL_ENABLE_REG(x) (buck_vol_enable_addr[x])
+#define LP3972_BUCK_VOL1_REG(x) (buck_base_addr[x])
+#define LP3972_BUCK_VOL_MASK 0x1f
+#define LP3972_BUCK_VOL_MIN_IDX(x) ((x) ? 0x01 : 0x00)
+#define LP3972_BUCK_VOL_MAX_IDX(x) ((x) ? 0x19 : 0x1f)
+
+static int lp3972_i2c_read(struct i2c_client *i2c, char reg, int count,
+ u16 *dest)
+{
+ int ret;
+
+ if (count != 1)
+ return -EIO;
+ ret = i2c_smbus_read_byte_data(i2c, reg);
+ if (ret < 0)
+ return ret;
+
+ *dest = ret;
+ return 0;
+}
+
+static int lp3972_i2c_write(struct i2c_client *i2c, char reg, int count,
+ const u16 *src)
+{
+ if (count != 1)
+ return -EIO;
+ return i2c_smbus_write_byte_data(i2c, reg, *src);
+}
+
+static u8 lp3972_reg_read(struct lp3972 *lp3972, u8 reg)
+{
+ u16 val = 0;
+
+ mutex_lock(&lp3972->io_lock);
+
+ lp3972_i2c_read(lp3972->i2c, reg, 1, &val);
+
+ dev_dbg(lp3972->dev, "reg read 0x%02x -> 0x%02x\n", (int)reg,
+ (unsigned)val & 0xff);
+
+ mutex_unlock(&lp3972->io_lock);
+
+ return val & 0xff;
+}
+
+static int lp3972_set_bits(struct lp3972 *lp3972, u8 reg, u16 mask, u16 val)
+{
+ u16 tmp;
+ int ret;
+
+ mutex_lock(&lp3972->io_lock);
+
+ ret = lp3972_i2c_read(lp3972->i2c, reg, 1, &tmp);
+ tmp = (tmp & ~mask) | val;
+ if (ret == 0) {
+ ret = lp3972_i2c_write(lp3972->i2c, reg, 1, &tmp);
+ dev_dbg(lp3972->dev, "reg write 0x%02x -> 0x%02x\n", (int)reg,
+ (unsigned)val & 0xff);
+ }
+ mutex_unlock(&lp3972->io_lock);
+
+ return ret;
+}
+
+static int lp3972_ldo_list_voltage(struct regulator_dev *dev, unsigned index)
+{
+ int ldo = rdev_get_id(dev) - LP3972_LDO1;
+ return 1000 * LP3972_LDO_VOL_VALUE_MAP(ldo)[index];
+}
+
+static int lp3972_ldo_is_enabled(struct regulator_dev *dev)
+{
+ struct lp3972 *lp3972 = rdev_get_drvdata(dev);
+ int ldo = rdev_get_id(dev) - LP3972_LDO1;
+ u16 mask = LP3972_LDO_OUTPUT_ENABLE_MASK(ldo);
+ u16 val;
+
+ val = lp3972_reg_read(lp3972, LP3972_LDO_OUTPUT_ENABLE_REG(ldo));
+ return !!(val & mask);
+}
+
+static int lp3972_ldo_enable(struct regulator_dev *dev)
+{
+ struct lp3972 *lp3972 = rdev_get_drvdata(dev);
+ int ldo = rdev_get_id(dev) - LP3972_LDO1;
+ u16 mask = LP3972_LDO_OUTPUT_ENABLE_MASK(ldo);
+
+ return lp3972_set_bits(lp3972, LP3972_LDO_OUTPUT_ENABLE_REG(ldo),
+ mask, mask);
+}
+
+static int lp3972_ldo_disable(struct regulator_dev *dev)
+{
+ struct lp3972 *lp3972 = rdev_get_drvdata(dev);
+ int ldo = rdev_get_id(dev) - LP3972_LDO1;
+ u16 mask = LP3972_LDO_OUTPUT_ENABLE_MASK(ldo);
+
+ return lp3972_set_bits(lp3972, LP3972_LDO_OUTPUT_ENABLE_REG(ldo),
+ mask, 0);
+}
+
+static int lp3972_ldo_get_voltage(struct regulator_dev *dev)
+{
+ struct lp3972 *lp3972 = rdev_get_drvdata(dev);
+ int ldo = rdev_get_id(dev) - LP3972_LDO1;
+ u16 mask = LP3972_LDO_VOL_MASK(ldo);
+ u16 val, reg;
+
+ reg = lp3972_reg_read(lp3972, LP3972_LDO_VOL_CONTR_REG(ldo));
+ val = (reg >> LP3972_LDO_VOL_CONTR_SHIFT(ldo)) & mask;
+
+ return 1000 * LP3972_LDO_VOL_VALUE_MAP(ldo)[val];
+}
+
+static int lp3972_ldo_set_voltage(struct regulator_dev *dev,
+ int min_uV, int max_uV,
+ unsigned int *selector)
+{
+ struct lp3972 *lp3972 = rdev_get_drvdata(dev);
+ int ldo = rdev_get_id(dev) - LP3972_LDO1;
+ int min_vol = min_uV / 1000, max_vol = max_uV / 1000;
+ const int *vol_map = LP3972_LDO_VOL_VALUE_MAP(ldo);
+ u16 val;
+ int shift, ret;
+
+ if (min_vol < vol_map[LP3972_LDO_VOL_MIN_IDX(ldo)] ||
+ min_vol > vol_map[LP3972_LDO_VOL_MAX_IDX(ldo)])
+ return -EINVAL;
+
+ for (val = LP3972_LDO_VOL_MIN_IDX(ldo);
+ val <= LP3972_LDO_VOL_MAX_IDX(ldo); val++)
+ if (vol_map[val] >= min_vol)
+ break;
+
+ if (val > LP3972_LDO_VOL_MAX_IDX(ldo) || vol_map[val] > max_vol)
+ return -EINVAL;
+
+ *selector = val;
+
+ shift = LP3972_LDO_VOL_CONTR_SHIFT(ldo);
+ ret = lp3972_set_bits(lp3972, LP3972_LDO_VOL_CONTR_REG(ldo),
+ LP3972_LDO_VOL_MASK(ldo) << shift, val << shift);
+
+ if (ret)
+ return ret;
+
+ /*
+ * LDO1 and LDO5 support voltage control by either target voltage1
+ * or target voltage2 register.
+ * We use target voltage1 register for LDO1 and LDO5 in this driver.
+ * We need to update voltage change control register(0x20) to enable
+ * LDO1 and LDO5 to change to their programmed target values.
+ */
+ switch (ldo) {
+ case LP3972_LDO1:
+ case LP3972_LDO5:
+ shift = LP3972_LDO_VOL_CHANGE_SHIFT(ldo);
+ ret = lp3972_set_bits(lp3972, LP3972_VOL_CHANGE_REG,
+ LP3972_VOL_CHANGE_FLAG_MASK << shift,
+ LP3972_VOL_CHANGE_FLAG_GO << shift);
+ if (ret)
+ return ret;
+
+ ret = lp3972_set_bits(lp3972, LP3972_VOL_CHANGE_REG,
+ LP3972_VOL_CHANGE_FLAG_MASK << shift, 0);
+ break;
+ }
+
+ return ret;
+}
+
+static struct regulator_ops lp3972_ldo_ops = {
+ .list_voltage = lp3972_ldo_list_voltage,
+ .is_enabled = lp3972_ldo_is_enabled,
+ .enable = lp3972_ldo_enable,
+ .disable = lp3972_ldo_disable,
+ .get_voltage = lp3972_ldo_get_voltage,
+ .set_voltage = lp3972_ldo_set_voltage,
+};
+
+static int lp3972_dcdc_list_voltage(struct regulator_dev *dev, unsigned index)
+{
+ int buck = rdev_get_id(dev) - LP3972_DCDC1;
+ return 1000 * buck_voltage_map[buck][index];
+}
+
+static int lp3972_dcdc_is_enabled(struct regulator_dev *dev)
+{
+ struct lp3972 *lp3972 = rdev_get_drvdata(dev);
+ int buck = rdev_get_id(dev) - LP3972_DCDC1;
+ u16 mask = 1 << (buck * 2);
+ u16 val;
+
+ val = lp3972_reg_read(lp3972, LP3972_BUCK_VOL_ENABLE_REG(buck));
+ return !!(val & mask);
+}
+
+static int lp3972_dcdc_enable(struct regulator_dev *dev)
+{
+ struct lp3972 *lp3972 = rdev_get_drvdata(dev);
+ int buck = rdev_get_id(dev) - LP3972_DCDC1;
+ u16 mask = 1 << (buck * 2);
+ u16 val;
+
+ val = lp3972_set_bits(lp3972, LP3972_BUCK_VOL_ENABLE_REG(buck),
+ mask, mask);
+ return val;
+}
+
+static int lp3972_dcdc_disable(struct regulator_dev *dev)
+{
+ struct lp3972 *lp3972 = rdev_get_drvdata(dev);
+ int buck = rdev_get_id(dev) - LP3972_DCDC1;
+ u16 mask = 1 << (buck * 2);
+ u16 val;
+
+ val = lp3972_set_bits(lp3972, LP3972_BUCK_VOL_ENABLE_REG(buck),
+ mask, 0);
+ return val;
+}
+
+static int lp3972_dcdc_get_voltage(struct regulator_dev *dev)
+{
+ struct lp3972 *lp3972 = rdev_get_drvdata(dev);
+ int buck = rdev_get_id(dev) - LP3972_DCDC1;
+ u16 reg;
+ int val;
+
+ reg = lp3972_reg_read(lp3972, LP3972_BUCK_VOL1_REG(buck));
+ reg &= LP3972_BUCK_VOL_MASK;
+ if (reg <= LP3972_BUCK_VOL_MAX_IDX(buck))
+ val = 1000 * buck_voltage_map[buck][reg];
+ else {
+ val = 0;
+ dev_warn(&dev->dev, "chip reported incorrect voltage value."
+ " reg = %d\n", reg);
+ }
+
+ return val;
+}
+
+static int lp3972_dcdc_set_voltage(struct regulator_dev *dev,
+ int min_uV, int max_uV,
+ unsigned int *selector)
+{
+ struct lp3972 *lp3972 = rdev_get_drvdata(dev);
+ int buck = rdev_get_id(dev) - LP3972_DCDC1;
+ int min_vol = min_uV / 1000, max_vol = max_uV / 1000;
+ const int *vol_map = buck_voltage_map[buck];
+ u16 val;
+ int ret;
+
+ if (min_vol < vol_map[LP3972_BUCK_VOL_MIN_IDX(buck)] ||
+ min_vol > vol_map[LP3972_BUCK_VOL_MAX_IDX(buck)])
+ return -EINVAL;
+
+ for (val = LP3972_BUCK_VOL_MIN_IDX(buck);
+ val <= LP3972_BUCK_VOL_MAX_IDX(buck); val++)
+ if (vol_map[val] >= min_vol)
+ break;
+
+ if (val > LP3972_BUCK_VOL_MAX_IDX(buck) ||
+ vol_map[val] > max_vol)
+ return -EINVAL;
+
+ *selector = val;
+
+ ret = lp3972_set_bits(lp3972, LP3972_BUCK_VOL1_REG(buck),
+ LP3972_BUCK_VOL_MASK, val);
+ if (ret)
+ return ret;
+
+ if (buck != 0)
+ return ret;
+
+ ret = lp3972_set_bits(lp3972, LP3972_VOL_CHANGE_REG,
+ LP3972_VOL_CHANGE_FLAG_MASK, LP3972_VOL_CHANGE_FLAG_GO);
+ if (ret)
+ return ret;
+
+ return lp3972_set_bits(lp3972, LP3972_VOL_CHANGE_REG,
+ LP3972_VOL_CHANGE_FLAG_MASK, 0);
+}
+
+static struct regulator_ops lp3972_dcdc_ops = {
+ .list_voltage = lp3972_dcdc_list_voltage,
+ .is_enabled = lp3972_dcdc_is_enabled,
+ .enable = lp3972_dcdc_enable,
+ .disable = lp3972_dcdc_disable,
+ .get_voltage = lp3972_dcdc_get_voltage,
+ .set_voltage = lp3972_dcdc_set_voltage,
+};
+
+static struct regulator_desc regulators[] = {
+ {
+ .name = "LDO1",
+ .id = LP3972_LDO1,
+ .ops = &lp3972_ldo_ops,
+ .n_voltages = ARRAY_SIZE(ldo1_voltage_map),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO2",
+ .id = LP3972_LDO2,
+ .ops = &lp3972_ldo_ops,
+ .n_voltages = ARRAY_SIZE(ldo23_voltage_map),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO3",
+ .id = LP3972_LDO3,
+ .ops = &lp3972_ldo_ops,
+ .n_voltages = ARRAY_SIZE(ldo23_voltage_map),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO4",
+ .id = LP3972_LDO4,
+ .ops = &lp3972_ldo_ops,
+ .n_voltages = ARRAY_SIZE(ldo4_voltage_map),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO5",
+ .id = LP3972_LDO5,
+ .ops = &lp3972_ldo_ops,
+ .n_voltages = ARRAY_SIZE(ldo5_voltage_map),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "DCDC1",
+ .id = LP3972_DCDC1,
+ .ops = &lp3972_dcdc_ops,
+ .n_voltages = ARRAY_SIZE(buck1_voltage_map),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "DCDC2",
+ .id = LP3972_DCDC2,
+ .ops = &lp3972_dcdc_ops,
+ .n_voltages = ARRAY_SIZE(buck23_voltage_map),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "DCDC3",
+ .id = LP3972_DCDC3,
+ .ops = &lp3972_dcdc_ops,
+ .n_voltages = ARRAY_SIZE(buck23_voltage_map),
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __devinit setup_regulators(struct lp3972 *lp3972,
+ struct lp3972_platform_data *pdata)
+{
+ int i, err;
+
+ lp3972->num_regulators = pdata->num_regulators;
+ lp3972->rdev = kcalloc(pdata->num_regulators,
+ sizeof(struct regulator_dev *), GFP_KERNEL);
+ if (!lp3972->rdev) {
+ err = -ENOMEM;
+ goto err_nomem;
+ }
+
+ /* Instantiate the regulators */
+ for (i = 0; i < pdata->num_regulators; i++) {
+ struct lp3972_regulator_subdev *reg = &pdata->regulators[i];
+ lp3972->rdev[i] = regulator_register(®ulators[reg->id],
+ lp3972->dev, reg->initdata, lp3972, NULL);
+
+ if (IS_ERR(lp3972->rdev[i])) {
+ err = PTR_ERR(lp3972->rdev[i]);
+ dev_err(lp3972->dev, "regulator init failed: %d\n",
+ err);
+ goto error;
+ }
+ }
+
+ return 0;
+error:
+ while (--i >= 0)
+ regulator_unregister(lp3972->rdev[i]);
+ kfree(lp3972->rdev);
+ lp3972->rdev = NULL;
+err_nomem:
+ return err;
+}
+
+static int __devinit lp3972_i2c_probe(struct i2c_client *i2c,
+ const struct i2c_device_id *id)
+{
+ struct lp3972 *lp3972;
+ struct lp3972_platform_data *pdata = i2c->dev.platform_data;
+ int ret;
+ u16 val;
+
+ if (!pdata) {
+ dev_dbg(&i2c->dev, "No platform init data supplied\n");
+ return -ENODEV;
+ }
+
+ lp3972 = kzalloc(sizeof(struct lp3972), GFP_KERNEL);
+ if (!lp3972)
+ return -ENOMEM;
+
+ lp3972->i2c = i2c;
+ lp3972->dev = &i2c->dev;
+
+ mutex_init(&lp3972->io_lock);
+
+ /* Detect LP3972 */
+ ret = lp3972_i2c_read(i2c, LP3972_SYS_CONTROL1_REG, 1, &val);
+ if (ret == 0 &&
+ (val & SYS_CONTROL1_INIT_MASK) != SYS_CONTROL1_INIT_VAL) {
+ ret = -ENODEV;
+ dev_err(&i2c->dev, "chip reported: val = 0x%x\n", val);
+ }
+ if (ret < 0) {
+ dev_err(&i2c->dev, "failed to detect device. ret = %d\n", ret);
+ goto err_detect;
+ }
+
+ ret = setup_regulators(lp3972, pdata);
+ if (ret < 0)
+ goto err_detect;
+
+ i2c_set_clientdata(i2c, lp3972);
+ return 0;
+
+err_detect:
+ kfree(lp3972);
+ return ret;
+}
+
+static int __devexit lp3972_i2c_remove(struct i2c_client *i2c)
+{
+ struct lp3972 *lp3972 = i2c_get_clientdata(i2c);
+ int i;
+
+ for (i = 0; i < lp3972->num_regulators; i++)
+ regulator_unregister(lp3972->rdev[i]);
+ kfree(lp3972->rdev);
+ kfree(lp3972);
+
+ return 0;
+}
+
+static const struct i2c_device_id lp3972_i2c_id[] = {
+ { "lp3972", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, lp3972_i2c_id);
+
+static struct i2c_driver lp3972_i2c_driver = {
+ .driver = {
+ .name = "lp3972",
+ .owner = THIS_MODULE,
+ },
+ .probe = lp3972_i2c_probe,
+ .remove = __devexit_p(lp3972_i2c_remove),
+ .id_table = lp3972_i2c_id,
+};
+
+static int __init lp3972_module_init(void)
+{
+ return i2c_add_driver(&lp3972_i2c_driver);
+}
+subsys_initcall(lp3972_module_init);
+
+static void __exit lp3972_module_exit(void)
+{
+ i2c_del_driver(&lp3972_i2c_driver);
+}
+module_exit(lp3972_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Axel Lin <axel.lin@gmail.com>");
+MODULE_DESCRIPTION("LP3972 PMIC driver");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/max1586.c b/ap/os/linux/linux-3.4.x/drivers/regulator/max1586.c
new file mode 100644
index 0000000..282d2ee
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/max1586.c
@@ -0,0 +1,283 @@
+/*
+ * max1586.c -- Voltage and current regulation for the Maxim 1586
+ *
+ * Copyright (C) 2008 Robert Jarzmik
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/slab.h>
+#include <linux/regulator/max1586.h>
+
+#define MAX1586_V3_MAX_VSEL 31
+#define MAX1586_V6_MAX_VSEL 3
+
+#define MAX1586_V3_MIN_UV 700000
+#define MAX1586_V3_MAX_UV 1475000
+
+#define MAX1586_V6_MIN_UV 0
+#define MAX1586_V6_MAX_UV 3000000
+
+#define I2C_V3_SELECT (0 << 5)
+#define I2C_V6_SELECT (1 << 5)
+
+struct max1586_data {
+ struct i2c_client *client;
+
+ /* min/max V3 voltage */
+ unsigned int min_uV;
+ unsigned int max_uV;
+
+ struct regulator_dev *rdev[0];
+};
+
+/*
+ * V3 voltage
+ * On I2C bus, sending a "x" byte to the max1586 means :
+ * set V3 to 0.700V + (x & 0x1f) * 0.025V
+ * This voltage can be increased by external resistors
+ * R24 and R25=100kOhm as described in the data sheet.
+ * The gain is approximately: 1 + R24/R25 + R24/185.5kOhm
+ */
+static int max1586_v3_calc_voltage(struct max1586_data *max1586,
+ unsigned selector)
+{
+ unsigned range_uV = max1586->max_uV - max1586->min_uV;
+
+ return max1586->min_uV + (selector * range_uV / MAX1586_V3_MAX_VSEL);
+}
+
+static int max1586_v3_set(struct regulator_dev *rdev, int min_uV, int max_uV,
+ unsigned *selector)
+{
+ struct max1586_data *max1586 = rdev_get_drvdata(rdev);
+ struct i2c_client *client = max1586->client;
+ unsigned range_uV = max1586->max_uV - max1586->min_uV;
+ u8 v3_prog;
+
+ if (min_uV > max1586->max_uV || max_uV < max1586->min_uV)
+ return -EINVAL;
+ if (min_uV < max1586->min_uV)
+ min_uV = max1586->min_uV;
+
+ *selector = DIV_ROUND_UP((min_uV - max1586->min_uV) *
+ MAX1586_V3_MAX_VSEL, range_uV);
+ if (max1586_v3_calc_voltage(max1586, *selector) > max_uV)
+ return -EINVAL;
+
+ dev_dbg(&client->dev, "changing voltage v3 to %dmv\n",
+ max1586_v3_calc_voltage(max1586, *selector) / 1000);
+
+ v3_prog = I2C_V3_SELECT | (u8) *selector;
+ return i2c_smbus_write_byte(client, v3_prog);
+}
+
+static int max1586_v3_list(struct regulator_dev *rdev, unsigned selector)
+{
+ struct max1586_data *max1586 = rdev_get_drvdata(rdev);
+
+ if (selector > MAX1586_V3_MAX_VSEL)
+ return -EINVAL;
+ return max1586_v3_calc_voltage(max1586, selector);
+}
+
+/*
+ * V6 voltage
+ * On I2C bus, sending a "x" byte to the max1586 means :
+ * set V6 to either 0V, 1.8V, 2.5V, 3V depending on (x & 0x3)
+ * As regulator framework doesn't accept voltages to be 0V, we use 1uV.
+ */
+static int max1586_v6_calc_voltage(unsigned selector)
+{
+ static int voltages_uv[] = { 1, 1800000, 2500000, 3000000 };
+
+ return voltages_uv[selector];
+}
+
+static int max1586_v6_set(struct regulator_dev *rdev, int min_uV, int max_uV,
+ unsigned int *selector)
+{
+ struct i2c_client *client = rdev_get_drvdata(rdev);
+ u8 v6_prog;
+
+ if (min_uV < MAX1586_V6_MIN_UV || min_uV > MAX1586_V6_MAX_UV)
+ return -EINVAL;
+ if (max_uV < MAX1586_V6_MIN_UV || max_uV > MAX1586_V6_MAX_UV)
+ return -EINVAL;
+
+ if (min_uV < 1800000)
+ *selector = 0;
+ else if (min_uV < 2500000)
+ *selector = 1;
+ else if (min_uV < 3000000)
+ *selector = 2;
+ else if (min_uV >= 3000000)
+ *selector = 3;
+
+ if (max1586_v6_calc_voltage(*selector) > max_uV)
+ return -EINVAL;
+
+ dev_dbg(&client->dev, "changing voltage v6 to %dmv\n",
+ max1586_v6_calc_voltage(*selector) / 1000);
+
+ v6_prog = I2C_V6_SELECT | (u8) *selector;
+ return i2c_smbus_write_byte(client, v6_prog);
+}
+
+static int max1586_v6_list(struct regulator_dev *rdev, unsigned selector)
+{
+ if (selector > MAX1586_V6_MAX_VSEL)
+ return -EINVAL;
+ return max1586_v6_calc_voltage(selector);
+}
+
+/*
+ * The Maxim 1586 controls V3 and V6 voltages, but offers no way of reading back
+ * the set up value.
+ */
+static struct regulator_ops max1586_v3_ops = {
+ .set_voltage = max1586_v3_set,
+ .list_voltage = max1586_v3_list,
+};
+
+static struct regulator_ops max1586_v6_ops = {
+ .set_voltage = max1586_v6_set,
+ .list_voltage = max1586_v6_list,
+};
+
+static struct regulator_desc max1586_reg[] = {
+ {
+ .name = "Output_V3",
+ .id = MAX1586_V3,
+ .ops = &max1586_v3_ops,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = MAX1586_V3_MAX_VSEL + 1,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "Output_V6",
+ .id = MAX1586_V6,
+ .ops = &max1586_v6_ops,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = MAX1586_V6_MAX_VSEL + 1,
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __devinit max1586_pmic_probe(struct i2c_client *client,
+ const struct i2c_device_id *i2c_id)
+{
+ struct regulator_dev **rdev;
+ struct max1586_platform_data *pdata = client->dev.platform_data;
+ struct max1586_data *max1586;
+ int i, id, ret = -ENOMEM;
+
+ max1586 = kzalloc(sizeof(struct max1586_data) +
+ sizeof(struct regulator_dev *) * (MAX1586_V6 + 1),
+ GFP_KERNEL);
+ if (!max1586)
+ goto out;
+
+ max1586->client = client;
+
+ if (!pdata->v3_gain) {
+ ret = -EINVAL;
+ goto out_unmap;
+ }
+ max1586->min_uV = MAX1586_V3_MIN_UV / 1000 * pdata->v3_gain / 1000;
+ max1586->max_uV = MAX1586_V3_MAX_UV / 1000 * pdata->v3_gain / 1000;
+
+ rdev = max1586->rdev;
+ for (i = 0; i < pdata->num_subdevs && i <= MAX1586_V6; i++) {
+ id = pdata->subdevs[i].id;
+ if (!pdata->subdevs[i].platform_data)
+ continue;
+ if (id < MAX1586_V3 || id > MAX1586_V6) {
+ dev_err(&client->dev, "invalid regulator id %d\n", id);
+ goto err;
+ }
+ rdev[i] = regulator_register(&max1586_reg[id], &client->dev,
+ pdata->subdevs[i].platform_data,
+ max1586, NULL);
+ if (IS_ERR(rdev[i])) {
+ ret = PTR_ERR(rdev[i]);
+ dev_err(&client->dev, "failed to register %s\n",
+ max1586_reg[id].name);
+ goto err;
+ }
+ }
+
+ i2c_set_clientdata(client, max1586);
+ dev_info(&client->dev, "Maxim 1586 regulator driver loaded\n");
+ return 0;
+
+err:
+ while (--i >= 0)
+ regulator_unregister(rdev[i]);
+out_unmap:
+ kfree(max1586);
+out:
+ return ret;
+}
+
+static int __devexit max1586_pmic_remove(struct i2c_client *client)
+{
+ struct max1586_data *max1586 = i2c_get_clientdata(client);
+ int i;
+
+ for (i = 0; i <= MAX1586_V6; i++)
+ if (max1586->rdev[i])
+ regulator_unregister(max1586->rdev[i]);
+ kfree(max1586);
+
+ return 0;
+}
+
+static const struct i2c_device_id max1586_id[] = {
+ { "max1586", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, max1586_id);
+
+static struct i2c_driver max1586_pmic_driver = {
+ .probe = max1586_pmic_probe,
+ .remove = __devexit_p(max1586_pmic_remove),
+ .driver = {
+ .name = "max1586",
+ .owner = THIS_MODULE,
+ },
+ .id_table = max1586_id,
+};
+
+static int __init max1586_pmic_init(void)
+{
+ return i2c_add_driver(&max1586_pmic_driver);
+}
+subsys_initcall(max1586_pmic_init);
+
+static void __exit max1586_pmic_exit(void)
+{
+ i2c_del_driver(&max1586_pmic_driver);
+}
+module_exit(max1586_pmic_exit);
+
+/* Module information */
+MODULE_DESCRIPTION("MAXIM 1586 voltage regulator driver");
+MODULE_AUTHOR("Robert Jarzmik");
+MODULE_LICENSE("GPL");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/max8649.c b/ap/os/linux/linux-3.4.x/drivers/regulator/max8649.c
new file mode 100644
index 0000000..824c650
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/max8649.c
@@ -0,0 +1,363 @@
+/*
+ * Regulators driver for Maxim max8649
+ *
+ * Copyright (C) 2009-2010 Marvell International Ltd.
+ * Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/slab.h>
+#include <linux/regulator/max8649.h>
+#include <linux/regmap.h>
+
+#define MAX8649_DCDC_VMIN 750000 /* uV */
+#define MAX8649_DCDC_VMAX 1380000 /* uV */
+#define MAX8649_DCDC_STEP 10000 /* uV */
+#define MAX8649_VOL_MASK 0x3f
+
+/* Registers */
+#define MAX8649_MODE0 0x00
+#define MAX8649_MODE1 0x01
+#define MAX8649_MODE2 0x02
+#define MAX8649_MODE3 0x03
+#define MAX8649_CONTROL 0x04
+#define MAX8649_SYNC 0x05
+#define MAX8649_RAMP 0x06
+#define MAX8649_CHIP_ID1 0x08
+#define MAX8649_CHIP_ID2 0x09
+
+/* Bits */
+#define MAX8649_EN_PD (1 << 7)
+#define MAX8649_VID0_PD (1 << 6)
+#define MAX8649_VID1_PD (1 << 5)
+#define MAX8649_VID_MASK (3 << 5)
+
+#define MAX8649_FORCE_PWM (1 << 7)
+#define MAX8649_SYNC_EXTCLK (1 << 6)
+
+#define MAX8649_EXT_MASK (3 << 6)
+
+#define MAX8649_RAMP_MASK (7 << 5)
+#define MAX8649_RAMP_DOWN (1 << 1)
+
+struct max8649_regulator_info {
+ struct regulator_dev *regulator;
+ struct device *dev;
+ struct regmap *regmap;
+
+ int vol_reg;
+ unsigned mode:2; /* bit[1:0] = VID1, VID0 */
+ unsigned extclk_freq:2;
+ unsigned extclk:1;
+ unsigned ramp_timing:3;
+ unsigned ramp_down:1;
+};
+
+/* I2C operations */
+
+static inline int check_range(int min_uV, int max_uV)
+{
+ if ((min_uV < MAX8649_DCDC_VMIN) || (max_uV > MAX8649_DCDC_VMAX)
+ || (min_uV > max_uV))
+ return -EINVAL;
+ return 0;
+}
+
+static int max8649_list_voltage(struct regulator_dev *rdev, unsigned index)
+{
+ return (MAX8649_DCDC_VMIN + index * MAX8649_DCDC_STEP);
+}
+
+static int max8649_get_voltage(struct regulator_dev *rdev)
+{
+ struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
+ unsigned int val;
+ unsigned char data;
+ int ret;
+
+ ret = regmap_read(info->regmap, info->vol_reg, &val);
+ if (ret != 0)
+ return ret;
+ data = (unsigned char)val & MAX8649_VOL_MASK;
+ return max8649_list_voltage(rdev, data);
+}
+
+static int max8649_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
+ unsigned char data, mask;
+
+ if (check_range(min_uV, max_uV)) {
+ dev_err(info->dev, "invalid voltage range (%d, %d) uV\n",
+ min_uV, max_uV);
+ return -EINVAL;
+ }
+ data = DIV_ROUND_UP(min_uV - MAX8649_DCDC_VMIN, MAX8649_DCDC_STEP);
+ mask = MAX8649_VOL_MASK;
+ *selector = data & mask;
+
+ return regmap_update_bits(info->regmap, info->vol_reg, mask, data);
+}
+
+/* EN_PD means pulldown on EN input */
+static int max8649_enable(struct regulator_dev *rdev)
+{
+ struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
+ return regmap_update_bits(info->regmap, MAX8649_CONTROL, MAX8649_EN_PD, 0);
+}
+
+/*
+ * Applied internal pulldown resistor on EN input pin.
+ * If pulldown EN pin outside, it would be better.
+ */
+static int max8649_disable(struct regulator_dev *rdev)
+{
+ struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
+ return regmap_update_bits(info->regmap, MAX8649_CONTROL, MAX8649_EN_PD,
+ MAX8649_EN_PD);
+}
+
+static int max8649_is_enabled(struct regulator_dev *rdev)
+{
+ struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
+ unsigned int val;
+ int ret;
+
+ ret = regmap_read(info->regmap, MAX8649_CONTROL, &val);
+ if (ret != 0)
+ return ret;
+ return !((unsigned char)val & MAX8649_EN_PD);
+}
+
+static int max8649_enable_time(struct regulator_dev *rdev)
+{
+ struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
+ int voltage, rate, ret;
+ unsigned int val;
+
+ /* get voltage */
+ ret = regmap_read(info->regmap, info->vol_reg, &val);
+ if (ret != 0)
+ return ret;
+ val &= MAX8649_VOL_MASK;
+ voltage = max8649_list_voltage(rdev, (unsigned char)val); /* uV */
+
+ /* get rate */
+ ret = regmap_read(info->regmap, MAX8649_RAMP, &val);
+ if (ret != 0)
+ return ret;
+ ret = (val & MAX8649_RAMP_MASK) >> 5;
+ rate = (32 * 1000) >> ret; /* uV/uS */
+
+ return DIV_ROUND_UP(voltage, rate);
+}
+
+static int max8649_set_mode(struct regulator_dev *rdev, unsigned int mode)
+{
+ struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
+
+ switch (mode) {
+ case REGULATOR_MODE_FAST:
+ regmap_update_bits(info->regmap, info->vol_reg, MAX8649_FORCE_PWM,
+ MAX8649_FORCE_PWM);
+ break;
+ case REGULATOR_MODE_NORMAL:
+ regmap_update_bits(info->regmap, info->vol_reg,
+ MAX8649_FORCE_PWM, 0);
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static unsigned int max8649_get_mode(struct regulator_dev *rdev)
+{
+ struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
+ unsigned int val;
+ int ret;
+
+ ret = regmap_read(info->regmap, info->vol_reg, &val);
+ if (ret != 0)
+ return ret;
+ if (val & MAX8649_FORCE_PWM)
+ return REGULATOR_MODE_FAST;
+ return REGULATOR_MODE_NORMAL;
+}
+
+static struct regulator_ops max8649_dcdc_ops = {
+ .set_voltage = max8649_set_voltage,
+ .get_voltage = max8649_get_voltage,
+ .list_voltage = max8649_list_voltage,
+ .enable = max8649_enable,
+ .disable = max8649_disable,
+ .is_enabled = max8649_is_enabled,
+ .enable_time = max8649_enable_time,
+ .set_mode = max8649_set_mode,
+ .get_mode = max8649_get_mode,
+
+};
+
+static struct regulator_desc dcdc_desc = {
+ .name = "max8649",
+ .ops = &max8649_dcdc_ops,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = 1 << 6,
+ .owner = THIS_MODULE,
+};
+
+static struct regmap_config max8649_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int __devinit max8649_regulator_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct max8649_platform_data *pdata = client->dev.platform_data;
+ struct max8649_regulator_info *info = NULL;
+ unsigned int val;
+ unsigned char data;
+ int ret;
+
+ info = kzalloc(sizeof(struct max8649_regulator_info), GFP_KERNEL);
+ if (!info) {
+ dev_err(&client->dev, "No enough memory\n");
+ return -ENOMEM;
+ }
+
+ info->regmap = regmap_init_i2c(client, &max8649_regmap_config);
+ if (IS_ERR(info->regmap)) {
+ ret = PTR_ERR(info->regmap);
+ dev_err(&client->dev, "Failed to allocate register map: %d\n", ret);
+ goto fail;
+ }
+
+ info->dev = &client->dev;
+ i2c_set_clientdata(client, info);
+
+ info->mode = pdata->mode;
+ switch (info->mode) {
+ case 0:
+ info->vol_reg = MAX8649_MODE0;
+ break;
+ case 1:
+ info->vol_reg = MAX8649_MODE1;
+ break;
+ case 2:
+ info->vol_reg = MAX8649_MODE2;
+ break;
+ case 3:
+ info->vol_reg = MAX8649_MODE3;
+ break;
+ default:
+ break;
+ }
+
+ ret = regmap_read(info->regmap, MAX8649_CHIP_ID1, &val);
+ if (ret != 0) {
+ dev_err(info->dev, "Failed to detect ID of MAX8649:%d\n",
+ ret);
+ goto out;
+ }
+ dev_info(info->dev, "Detected MAX8649 (ID:%x)\n", val);
+
+ /* enable VID0 & VID1 */
+ regmap_update_bits(info->regmap, MAX8649_CONTROL, MAX8649_VID_MASK, 0);
+
+ /* enable/disable external clock synchronization */
+ info->extclk = pdata->extclk;
+ data = (info->extclk) ? MAX8649_SYNC_EXTCLK : 0;
+ regmap_update_bits(info->regmap, info->vol_reg, MAX8649_SYNC_EXTCLK, data);
+ if (info->extclk) {
+ /* set external clock frequency */
+ info->extclk_freq = pdata->extclk_freq;
+ regmap_update_bits(info->regmap, MAX8649_SYNC, MAX8649_EXT_MASK,
+ info->extclk_freq << 6);
+ }
+
+ if (pdata->ramp_timing) {
+ info->ramp_timing = pdata->ramp_timing;
+ regmap_update_bits(info->regmap, MAX8649_RAMP, MAX8649_RAMP_MASK,
+ info->ramp_timing << 5);
+ }
+
+ info->ramp_down = pdata->ramp_down;
+ if (info->ramp_down) {
+ regmap_update_bits(info->regmap, MAX8649_RAMP, MAX8649_RAMP_DOWN,
+ MAX8649_RAMP_DOWN);
+ }
+
+ info->regulator = regulator_register(&dcdc_desc, &client->dev,
+ pdata->regulator, info, NULL);
+ if (IS_ERR(info->regulator)) {
+ dev_err(info->dev, "failed to register regulator %s\n",
+ dcdc_desc.name);
+ ret = PTR_ERR(info->regulator);
+ goto out;
+ }
+
+ dev_info(info->dev, "Max8649 regulator device is detected.\n");
+ return 0;
+out:
+ regmap_exit(info->regmap);
+fail:
+ kfree(info);
+ return ret;
+}
+
+static int __devexit max8649_regulator_remove(struct i2c_client *client)
+{
+ struct max8649_regulator_info *info = i2c_get_clientdata(client);
+
+ if (info) {
+ if (info->regulator)
+ regulator_unregister(info->regulator);
+ regmap_exit(info->regmap);
+ kfree(info);
+ }
+
+ return 0;
+}
+
+static const struct i2c_device_id max8649_id[] = {
+ { "max8649", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, max8649_id);
+
+static struct i2c_driver max8649_driver = {
+ .probe = max8649_regulator_probe,
+ .remove = __devexit_p(max8649_regulator_remove),
+ .driver = {
+ .name = "max8649",
+ },
+ .id_table = max8649_id,
+};
+
+static int __init max8649_init(void)
+{
+ return i2c_add_driver(&max8649_driver);
+}
+subsys_initcall(max8649_init);
+
+static void __exit max8649_exit(void)
+{
+ i2c_del_driver(&max8649_driver);
+}
+module_exit(max8649_exit);
+
+/* Module information */
+MODULE_DESCRIPTION("MAXIM 8649 voltage regulator driver");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_LICENSE("GPL");
+
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/max8660.c b/ap/os/linux/linux-3.4.x/drivers/regulator/max8660.c
new file mode 100644
index 0000000..4c5b053
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/max8660.c
@@ -0,0 +1,521 @@
+/*
+ * max8660.c -- Voltage regulation for the Maxim 8660/8661
+ *
+ * based on max1586.c and wm8400-regulator.c
+ *
+ * Copyright (C) 2009 Wolfram Sang, Pengutronix e.K.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Some info:
+ *
+ * Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX8660-MAX8661.pdf
+ *
+ * This chip is a bit nasty because it is a write-only device. Thus, the driver
+ * uses shadow registers to keep track of its values. The main problem appears
+ * to be the initialization: When Linux boots up, we cannot know if the chip is
+ * in the default state or not, so we would have to pass such information in
+ * platform_data. As this adds a bit of complexity to the driver, this is left
+ * out for now until it is really needed.
+ *
+ * [A|S|M]DTV1 registers are currently not used, but [A|S|M]DTV2.
+ *
+ * If the driver is feature complete, it might be worth to check if one set of
+ * functions for V3-V7 is sufficient. For maximum flexibility during
+ * development, they are separated for now.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/slab.h>
+#include <linux/regulator/max8660.h>
+
+#define MAX8660_DCDC_MIN_UV 725000
+#define MAX8660_DCDC_MAX_UV 1800000
+#define MAX8660_DCDC_STEP 25000
+#define MAX8660_DCDC_MAX_SEL 0x2b
+
+#define MAX8660_LDO5_MIN_UV 1700000
+#define MAX8660_LDO5_MAX_UV 2000000
+#define MAX8660_LDO5_STEP 25000
+#define MAX8660_LDO5_MAX_SEL 0x0c
+
+#define MAX8660_LDO67_MIN_UV 1800000
+#define MAX8660_LDO67_MAX_UV 3300000
+#define MAX8660_LDO67_STEP 100000
+#define MAX8660_LDO67_MAX_SEL 0x0f
+
+enum {
+ MAX8660_OVER1,
+ MAX8660_OVER2,
+ MAX8660_VCC1,
+ MAX8660_ADTV1,
+ MAX8660_ADTV2,
+ MAX8660_SDTV1,
+ MAX8660_SDTV2,
+ MAX8660_MDTV1,
+ MAX8660_MDTV2,
+ MAX8660_L12VCR,
+ MAX8660_FPWM,
+ MAX8660_N_REGS, /* not a real register */
+};
+
+struct max8660 {
+ struct i2c_client *client;
+ u8 shadow_regs[MAX8660_N_REGS]; /* as chip is write only */
+ struct regulator_dev *rdev[];
+};
+
+static int max8660_write(struct max8660 *max8660, u8 reg, u8 mask, u8 val)
+{
+ static const u8 max8660_addresses[MAX8660_N_REGS] =
+ { 0x10, 0x12, 0x20, 0x23, 0x24, 0x29, 0x2a, 0x32, 0x33, 0x39, 0x80 };
+
+ int ret;
+ u8 reg_val = (max8660->shadow_regs[reg] & mask) | val;
+ dev_vdbg(&max8660->client->dev, "Writing reg %02x with %02x\n",
+ max8660_addresses[reg], reg_val);
+
+ ret = i2c_smbus_write_byte_data(max8660->client,
+ max8660_addresses[reg], reg_val);
+ if (ret == 0)
+ max8660->shadow_regs[reg] = reg_val;
+
+ return ret;
+}
+
+
+/*
+ * DCDC functions
+ */
+
+static int max8660_dcdc_is_enabled(struct regulator_dev *rdev)
+{
+ struct max8660 *max8660 = rdev_get_drvdata(rdev);
+ u8 val = max8660->shadow_regs[MAX8660_OVER1];
+ u8 mask = (rdev_get_id(rdev) == MAX8660_V3) ? 1 : 4;
+ return !!(val & mask);
+}
+
+static int max8660_dcdc_enable(struct regulator_dev *rdev)
+{
+ struct max8660 *max8660 = rdev_get_drvdata(rdev);
+ u8 bit = (rdev_get_id(rdev) == MAX8660_V3) ? 1 : 4;
+ return max8660_write(max8660, MAX8660_OVER1, 0xff, bit);
+}
+
+static int max8660_dcdc_disable(struct regulator_dev *rdev)
+{
+ struct max8660 *max8660 = rdev_get_drvdata(rdev);
+ u8 mask = (rdev_get_id(rdev) == MAX8660_V3) ? ~1 : ~4;
+ return max8660_write(max8660, MAX8660_OVER1, mask, 0);
+}
+
+static int max8660_dcdc_list(struct regulator_dev *rdev, unsigned selector)
+{
+ if (selector > MAX8660_DCDC_MAX_SEL)
+ return -EINVAL;
+ return MAX8660_DCDC_MIN_UV + selector * MAX8660_DCDC_STEP;
+}
+
+static int max8660_dcdc_get(struct regulator_dev *rdev)
+{
+ struct max8660 *max8660 = rdev_get_drvdata(rdev);
+ u8 reg = (rdev_get_id(rdev) == MAX8660_V3) ? MAX8660_ADTV2 : MAX8660_SDTV2;
+ u8 selector = max8660->shadow_regs[reg];
+ return MAX8660_DCDC_MIN_UV + selector * MAX8660_DCDC_STEP;
+}
+
+static int max8660_dcdc_set(struct regulator_dev *rdev, int min_uV, int max_uV,
+ unsigned int *s)
+{
+ struct max8660 *max8660 = rdev_get_drvdata(rdev);
+ u8 reg, selector, bits;
+ int ret;
+
+ if (min_uV < MAX8660_DCDC_MIN_UV || min_uV > MAX8660_DCDC_MAX_UV)
+ return -EINVAL;
+ if (max_uV < MAX8660_DCDC_MIN_UV || max_uV > MAX8660_DCDC_MAX_UV)
+ return -EINVAL;
+
+ selector = DIV_ROUND_UP(min_uV - MAX8660_DCDC_MIN_UV,
+ MAX8660_DCDC_STEP);
+
+ ret = max8660_dcdc_list(rdev, selector);
+ if (ret < 0 || ret > max_uV)
+ return -EINVAL;
+
+ *s = selector;
+
+ reg = (rdev_get_id(rdev) == MAX8660_V3) ? MAX8660_ADTV2 : MAX8660_SDTV2;
+ ret = max8660_write(max8660, reg, 0, selector);
+ if (ret)
+ return ret;
+
+ /* Select target voltage register and activate regulation */
+ bits = (rdev_get_id(rdev) == MAX8660_V3) ? 0x03 : 0x30;
+ return max8660_write(max8660, MAX8660_VCC1, 0xff, bits);
+}
+
+static struct regulator_ops max8660_dcdc_ops = {
+ .is_enabled = max8660_dcdc_is_enabled,
+ .list_voltage = max8660_dcdc_list,
+ .set_voltage = max8660_dcdc_set,
+ .get_voltage = max8660_dcdc_get,
+};
+
+
+/*
+ * LDO5 functions
+ */
+
+static int max8660_ldo5_list(struct regulator_dev *rdev, unsigned selector)
+{
+ if (selector > MAX8660_LDO5_MAX_SEL)
+ return -EINVAL;
+ return MAX8660_LDO5_MIN_UV + selector * MAX8660_LDO5_STEP;
+}
+
+static int max8660_ldo5_get(struct regulator_dev *rdev)
+{
+ struct max8660 *max8660 = rdev_get_drvdata(rdev);
+ u8 selector = max8660->shadow_regs[MAX8660_MDTV2];
+
+ return MAX8660_LDO5_MIN_UV + selector * MAX8660_LDO5_STEP;
+}
+
+static int max8660_ldo5_set(struct regulator_dev *rdev, int min_uV, int max_uV,
+ unsigned int *s)
+{
+ struct max8660 *max8660 = rdev_get_drvdata(rdev);
+ u8 selector;
+ int ret;
+
+ if (min_uV < MAX8660_LDO5_MIN_UV || min_uV > MAX8660_LDO5_MAX_UV)
+ return -EINVAL;
+ if (max_uV < MAX8660_LDO5_MIN_UV || max_uV > MAX8660_LDO5_MAX_UV)
+ return -EINVAL;
+
+ selector = DIV_ROUND_UP(min_uV - MAX8660_LDO5_MIN_UV,
+ MAX8660_LDO5_STEP);
+
+ ret = max8660_ldo5_list(rdev, selector);
+ if (ret < 0 || ret > max_uV)
+ return -EINVAL;
+
+ *s = selector;
+
+ ret = max8660_write(max8660, MAX8660_MDTV2, 0, selector);
+ if (ret)
+ return ret;
+
+ /* Select target voltage register and activate regulation */
+ return max8660_write(max8660, MAX8660_VCC1, 0xff, 0xc0);
+}
+
+static struct regulator_ops max8660_ldo5_ops = {
+ .list_voltage = max8660_ldo5_list,
+ .set_voltage = max8660_ldo5_set,
+ .get_voltage = max8660_ldo5_get,
+};
+
+
+/*
+ * LDO67 functions
+ */
+
+static int max8660_ldo67_is_enabled(struct regulator_dev *rdev)
+{
+ struct max8660 *max8660 = rdev_get_drvdata(rdev);
+ u8 val = max8660->shadow_regs[MAX8660_OVER2];
+ u8 mask = (rdev_get_id(rdev) == MAX8660_V6) ? 2 : 4;
+ return !!(val & mask);
+}
+
+static int max8660_ldo67_enable(struct regulator_dev *rdev)
+{
+ struct max8660 *max8660 = rdev_get_drvdata(rdev);
+ u8 bit = (rdev_get_id(rdev) == MAX8660_V6) ? 2 : 4;
+ return max8660_write(max8660, MAX8660_OVER2, 0xff, bit);
+}
+
+static int max8660_ldo67_disable(struct regulator_dev *rdev)
+{
+ struct max8660 *max8660 = rdev_get_drvdata(rdev);
+ u8 mask = (rdev_get_id(rdev) == MAX8660_V6) ? ~2 : ~4;
+ return max8660_write(max8660, MAX8660_OVER2, mask, 0);
+}
+
+static int max8660_ldo67_list(struct regulator_dev *rdev, unsigned selector)
+{
+ if (selector > MAX8660_LDO67_MAX_SEL)
+ return -EINVAL;
+ return MAX8660_LDO67_MIN_UV + selector * MAX8660_LDO67_STEP;
+}
+
+static int max8660_ldo67_get(struct regulator_dev *rdev)
+{
+ struct max8660 *max8660 = rdev_get_drvdata(rdev);
+ u8 shift = (rdev_get_id(rdev) == MAX8660_V6) ? 0 : 4;
+ u8 selector = (max8660->shadow_regs[MAX8660_L12VCR] >> shift) & 0xf;
+
+ return MAX8660_LDO67_MIN_UV + selector * MAX8660_LDO67_STEP;
+}
+
+static int max8660_ldo67_set(struct regulator_dev *rdev, int min_uV,
+ int max_uV, unsigned int *s)
+{
+ struct max8660 *max8660 = rdev_get_drvdata(rdev);
+ u8 selector;
+ int ret;
+
+ if (min_uV < MAX8660_LDO67_MIN_UV || min_uV > MAX8660_LDO67_MAX_UV)
+ return -EINVAL;
+ if (max_uV < MAX8660_LDO67_MIN_UV || max_uV > MAX8660_LDO67_MAX_UV)
+ return -EINVAL;
+
+ selector = DIV_ROUND_UP(min_uV - MAX8660_LDO67_MIN_UV,
+ MAX8660_LDO67_STEP);
+
+ ret = max8660_ldo67_list(rdev, selector);
+ if (ret < 0 || ret > max_uV)
+ return -EINVAL;
+
+ *s = selector;
+
+ if (rdev_get_id(rdev) == MAX8660_V6)
+ return max8660_write(max8660, MAX8660_L12VCR, 0xf0, selector);
+ else
+ return max8660_write(max8660, MAX8660_L12VCR, 0x0f, selector << 4);
+}
+
+static struct regulator_ops max8660_ldo67_ops = {
+ .is_enabled = max8660_ldo67_is_enabled,
+ .enable = max8660_ldo67_enable,
+ .disable = max8660_ldo67_disable,
+ .list_voltage = max8660_ldo67_list,
+ .get_voltage = max8660_ldo67_get,
+ .set_voltage = max8660_ldo67_set,
+};
+
+static struct regulator_desc max8660_reg[] = {
+ {
+ .name = "V3(DCDC)",
+ .id = MAX8660_V3,
+ .ops = &max8660_dcdc_ops,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = MAX8660_DCDC_MAX_SEL + 1,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "V4(DCDC)",
+ .id = MAX8660_V4,
+ .ops = &max8660_dcdc_ops,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = MAX8660_DCDC_MAX_SEL + 1,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "V5(LDO)",
+ .id = MAX8660_V5,
+ .ops = &max8660_ldo5_ops,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = MAX8660_LDO5_MAX_SEL + 1,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "V6(LDO)",
+ .id = MAX8660_V6,
+ .ops = &max8660_ldo67_ops,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = MAX8660_LDO67_MAX_SEL + 1,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "V7(LDO)",
+ .id = MAX8660_V7,
+ .ops = &max8660_ldo67_ops,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = MAX8660_LDO67_MAX_SEL + 1,
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __devinit max8660_probe(struct i2c_client *client,
+ const struct i2c_device_id *i2c_id)
+{
+ struct regulator_dev **rdev;
+ struct max8660_platform_data *pdata = client->dev.platform_data;
+ struct max8660 *max8660;
+ int boot_on, i, id, ret = -EINVAL;
+
+ if (pdata->num_subdevs > MAX8660_V_END) {
+ dev_err(&client->dev, "Too many regulators found!\n");
+ goto out;
+ }
+
+ max8660 = kzalloc(sizeof(struct max8660) +
+ sizeof(struct regulator_dev *) * MAX8660_V_END,
+ GFP_KERNEL);
+ if (!max8660) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ max8660->client = client;
+ rdev = max8660->rdev;
+
+ if (pdata->en34_is_high) {
+ /* Simulate always on */
+ max8660->shadow_regs[MAX8660_OVER1] = 5;
+ } else {
+ /* Otherwise devices can be toggled via software */
+ max8660_dcdc_ops.enable = max8660_dcdc_enable;
+ max8660_dcdc_ops.disable = max8660_dcdc_disable;
+ }
+
+ /*
+ * First, set up shadow registers to prevent glitches. As some
+ * registers are shared between regulators, everything must be properly
+ * set up for all regulators in advance.
+ */
+ max8660->shadow_regs[MAX8660_ADTV1] =
+ max8660->shadow_regs[MAX8660_ADTV2] =
+ max8660->shadow_regs[MAX8660_SDTV1] =
+ max8660->shadow_regs[MAX8660_SDTV2] = 0x1b;
+ max8660->shadow_regs[MAX8660_MDTV1] =
+ max8660->shadow_regs[MAX8660_MDTV2] = 0x04;
+
+ for (i = 0; i < pdata->num_subdevs; i++) {
+
+ if (!pdata->subdevs[i].platform_data)
+ goto err_free;
+
+ boot_on = pdata->subdevs[i].platform_data->constraints.boot_on;
+
+ switch (pdata->subdevs[i].id) {
+ case MAX8660_V3:
+ if (boot_on)
+ max8660->shadow_regs[MAX8660_OVER1] |= 1;
+ break;
+
+ case MAX8660_V4:
+ if (boot_on)
+ max8660->shadow_regs[MAX8660_OVER1] |= 4;
+ break;
+
+ case MAX8660_V5:
+ break;
+
+ case MAX8660_V6:
+ if (boot_on)
+ max8660->shadow_regs[MAX8660_OVER2] |= 2;
+ break;
+
+ case MAX8660_V7:
+ if (!strcmp(i2c_id->name, "max8661")) {
+ dev_err(&client->dev, "Regulator not on this chip!\n");
+ goto err_free;
+ }
+
+ if (boot_on)
+ max8660->shadow_regs[MAX8660_OVER2] |= 4;
+ break;
+
+ default:
+ dev_err(&client->dev, "invalid regulator %s\n",
+ pdata->subdevs[i].name);
+ goto err_free;
+ }
+ }
+
+ /* Finally register devices */
+ for (i = 0; i < pdata->num_subdevs; i++) {
+
+ id = pdata->subdevs[i].id;
+
+ rdev[i] = regulator_register(&max8660_reg[id], &client->dev,
+ pdata->subdevs[i].platform_data,
+ max8660, NULL);
+ if (IS_ERR(rdev[i])) {
+ ret = PTR_ERR(rdev[i]);
+ dev_err(&client->dev, "failed to register %s\n",
+ max8660_reg[id].name);
+ goto err_unregister;
+ }
+ }
+
+ i2c_set_clientdata(client, max8660);
+ dev_info(&client->dev, "Maxim 8660/8661 regulator driver loaded\n");
+ return 0;
+
+err_unregister:
+ while (--i >= 0)
+ regulator_unregister(rdev[i]);
+err_free:
+ kfree(max8660);
+out:
+ return ret;
+}
+
+static int __devexit max8660_remove(struct i2c_client *client)
+{
+ struct max8660 *max8660 = i2c_get_clientdata(client);
+ int i;
+
+ for (i = 0; i < MAX8660_V_END; i++)
+ if (max8660->rdev[i])
+ regulator_unregister(max8660->rdev[i]);
+ kfree(max8660);
+
+ return 0;
+}
+
+static const struct i2c_device_id max8660_id[] = {
+ { "max8660", 0 },
+ { "max8661", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, max8660_id);
+
+static struct i2c_driver max8660_driver = {
+ .probe = max8660_probe,
+ .remove = __devexit_p(max8660_remove),
+ .driver = {
+ .name = "max8660",
+ .owner = THIS_MODULE,
+ },
+ .id_table = max8660_id,
+};
+
+static int __init max8660_init(void)
+{
+ return i2c_add_driver(&max8660_driver);
+}
+subsys_initcall(max8660_init);
+
+static void __exit max8660_exit(void)
+{
+ i2c_del_driver(&max8660_driver);
+}
+module_exit(max8660_exit);
+
+/* Module information */
+MODULE_DESCRIPTION("MAXIM 8660/8661 voltage regulator driver");
+MODULE_AUTHOR("Wolfram Sang");
+MODULE_LICENSE("GPL v2");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/max8925-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/max8925-regulator.c
new file mode 100644
index 0000000..2f242f4
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/max8925-regulator.c
@@ -0,0 +1,322 @@
+/*
+ * Regulators driver for Maxim max8925
+ *
+ * Copyright (C) 2009 Marvell International Ltd.
+ * Haojian Zhuang <haojian.zhuang@marvell.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/max8925.h>
+
+#define SD1_DVM_VMIN 850000
+#define SD1_DVM_VMAX 1000000
+#define SD1_DVM_STEP 50000
+#define SD1_DVM_SHIFT 5 /* SDCTL1 bit5 */
+#define SD1_DVM_EN 6 /* SDV1 bit 6 */
+
+/* bit definitions in LDO control registers */
+#define LDO_SEQ_I2C 0x7 /* Power U/D by i2c */
+#define LDO_SEQ_MASK 0x7 /* Power U/D sequence mask */
+#define LDO_SEQ_SHIFT 2 /* Power U/D sequence offset */
+#define LDO_I2C_EN 0x1 /* Enable by i2c */
+#define LDO_I2C_EN_MASK 0x1 /* Enable mask by i2c */
+#define LDO_I2C_EN_SHIFT 0 /* Enable offset by i2c */
+
+struct max8925_regulator_info {
+ struct regulator_desc desc;
+ struct regulator_dev *regulator;
+ struct i2c_client *i2c;
+ struct max8925_chip *chip;
+
+ int min_uV;
+ int max_uV;
+ int step_uV;
+ int vol_reg;
+ int vol_shift;
+ int vol_nbits;
+ int enable_reg;
+};
+
+static inline int check_range(struct max8925_regulator_info *info,
+ int min_uV, int max_uV)
+{
+ if (min_uV < info->min_uV || min_uV > info->max_uV)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int max8925_list_voltage(struct regulator_dev *rdev, unsigned index)
+{
+ struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
+ return info->min_uV + index * info->step_uV;
+}
+
+static int max8925_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned int *selector)
+{
+ struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
+ unsigned char data, mask;
+
+ if (check_range(info, min_uV, max_uV)) {
+ dev_err(info->chip->dev, "invalid voltage range (%d, %d) uV\n",
+ min_uV, max_uV);
+ return -EINVAL;
+ }
+ data = DIV_ROUND_UP(min_uV - info->min_uV, info->step_uV);
+ *selector = data;
+ data <<= info->vol_shift;
+ mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
+
+ return max8925_set_bits(info->i2c, info->vol_reg, mask, data);
+}
+
+static int max8925_get_voltage(struct regulator_dev *rdev)
+{
+ struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
+ unsigned char data, mask;
+ int ret;
+
+ ret = max8925_reg_read(info->i2c, info->vol_reg);
+ if (ret < 0)
+ return ret;
+ mask = ((1 << info->vol_nbits) - 1) << info->vol_shift;
+ data = (ret & mask) >> info->vol_shift;
+
+ return max8925_list_voltage(rdev, data);
+}
+
+static int max8925_enable(struct regulator_dev *rdev)
+{
+ struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
+
+ return max8925_set_bits(info->i2c, info->enable_reg,
+ LDO_SEQ_MASK << LDO_SEQ_SHIFT |
+ LDO_I2C_EN_MASK << LDO_I2C_EN_SHIFT,
+ LDO_SEQ_I2C << LDO_SEQ_SHIFT |
+ LDO_I2C_EN << LDO_I2C_EN_SHIFT);
+}
+
+static int max8925_disable(struct regulator_dev *rdev)
+{
+ struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
+
+ return max8925_set_bits(info->i2c, info->enable_reg,
+ LDO_SEQ_MASK << LDO_SEQ_SHIFT |
+ LDO_I2C_EN_MASK << LDO_I2C_EN_SHIFT,
+ LDO_SEQ_I2C << LDO_SEQ_SHIFT);
+}
+
+static int max8925_is_enabled(struct regulator_dev *rdev)
+{
+ struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
+ int ldo_seq, ret;
+
+ ret = max8925_reg_read(info->i2c, info->enable_reg);
+ if (ret < 0)
+ return ret;
+ ldo_seq = (ret >> LDO_SEQ_SHIFT) & LDO_SEQ_MASK;
+ if (ldo_seq != LDO_SEQ_I2C)
+ return 1;
+ else
+ return ret & (LDO_I2C_EN_MASK << LDO_I2C_EN_SHIFT);
+}
+
+static int max8925_set_dvm_voltage(struct regulator_dev *rdev, int uV)
+{
+ struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
+ unsigned char data, mask;
+
+ if (uV < SD1_DVM_VMIN || uV > SD1_DVM_VMAX)
+ return -EINVAL;
+
+ data = DIV_ROUND_UP(uV - SD1_DVM_VMIN, SD1_DVM_STEP);
+ data <<= SD1_DVM_SHIFT;
+ mask = 3 << SD1_DVM_SHIFT;
+
+ return max8925_set_bits(info->i2c, info->enable_reg, mask, data);
+}
+
+static int max8925_set_dvm_enable(struct regulator_dev *rdev)
+{
+ struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
+
+ return max8925_set_bits(info->i2c, info->vol_reg, 1 << SD1_DVM_EN,
+ 1 << SD1_DVM_EN);
+}
+
+static int max8925_set_dvm_disable(struct regulator_dev *rdev)
+{
+ struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
+
+ return max8925_set_bits(info->i2c, info->vol_reg, 1 << SD1_DVM_EN, 0);
+}
+
+static struct regulator_ops max8925_regulator_sdv_ops = {
+ .set_voltage = max8925_set_voltage,
+ .get_voltage = max8925_get_voltage,
+ .enable = max8925_enable,
+ .disable = max8925_disable,
+ .is_enabled = max8925_is_enabled,
+ .set_suspend_voltage = max8925_set_dvm_voltage,
+ .set_suspend_enable = max8925_set_dvm_enable,
+ .set_suspend_disable = max8925_set_dvm_disable,
+};
+
+static struct regulator_ops max8925_regulator_ldo_ops = {
+ .set_voltage = max8925_set_voltage,
+ .get_voltage = max8925_get_voltage,
+ .enable = max8925_enable,
+ .disable = max8925_disable,
+ .is_enabled = max8925_is_enabled,
+};
+
+#define MAX8925_SDV(_id, min, max, step) \
+{ \
+ .desc = { \
+ .name = "SDV" #_id, \
+ .ops = &max8925_regulator_sdv_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = MAX8925_ID_SD##_id, \
+ .owner = THIS_MODULE, \
+ }, \
+ .min_uV = min * 1000, \
+ .max_uV = max * 1000, \
+ .step_uV = step * 1000, \
+ .vol_reg = MAX8925_SDV##_id, \
+ .vol_shift = 0, \
+ .vol_nbits = 6, \
+ .enable_reg = MAX8925_SDCTL##_id, \
+}
+
+#define MAX8925_LDO(_id, min, max, step) \
+{ \
+ .desc = { \
+ .name = "LDO" #_id, \
+ .ops = &max8925_regulator_ldo_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = MAX8925_ID_LDO##_id, \
+ .owner = THIS_MODULE, \
+ }, \
+ .min_uV = min * 1000, \
+ .max_uV = max * 1000, \
+ .step_uV = step * 1000, \
+ .vol_reg = MAX8925_LDOVOUT##_id, \
+ .vol_shift = 0, \
+ .vol_nbits = 6, \
+ .enable_reg = MAX8925_LDOCTL##_id, \
+}
+
+static struct max8925_regulator_info max8925_regulator_info[] = {
+ MAX8925_SDV(1, 637.5, 1425, 12.5),
+ MAX8925_SDV(2, 650, 2225, 25),
+ MAX8925_SDV(3, 750, 3900, 50),
+
+ MAX8925_LDO(1, 750, 3900, 50),
+ MAX8925_LDO(2, 650, 2250, 25),
+ MAX8925_LDO(3, 650, 2250, 25),
+ MAX8925_LDO(4, 750, 3900, 50),
+ MAX8925_LDO(5, 750, 3900, 50),
+ MAX8925_LDO(6, 750, 3900, 50),
+ MAX8925_LDO(7, 750, 3900, 50),
+ MAX8925_LDO(8, 750, 3900, 50),
+ MAX8925_LDO(9, 750, 3900, 50),
+ MAX8925_LDO(10, 750, 3900, 50),
+ MAX8925_LDO(11, 750, 3900, 50),
+ MAX8925_LDO(12, 750, 3900, 50),
+ MAX8925_LDO(13, 750, 3900, 50),
+ MAX8925_LDO(14, 750, 3900, 50),
+ MAX8925_LDO(15, 750, 3900, 50),
+ MAX8925_LDO(16, 750, 3900, 50),
+ MAX8925_LDO(17, 650, 2250, 25),
+ MAX8925_LDO(18, 650, 2250, 25),
+ MAX8925_LDO(19, 750, 3900, 50),
+ MAX8925_LDO(20, 750, 3900, 50),
+};
+
+static struct max8925_regulator_info * __devinit find_regulator_info(int id)
+{
+ struct max8925_regulator_info *ri;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(max8925_regulator_info); i++) {
+ ri = &max8925_regulator_info[i];
+ if (ri->desc.id == id)
+ return ri;
+ }
+ return NULL;
+}
+
+static int __devinit max8925_regulator_probe(struct platform_device *pdev)
+{
+ struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent);
+ struct max8925_platform_data *pdata = chip->dev->platform_data;
+ struct max8925_regulator_info *ri;
+ struct regulator_dev *rdev;
+
+ ri = find_regulator_info(pdev->id);
+ if (ri == NULL) {
+ dev_err(&pdev->dev, "invalid regulator ID specified\n");
+ return -EINVAL;
+ }
+ ri->i2c = chip->i2c;
+ ri->chip = chip;
+
+ rdev = regulator_register(&ri->desc, &pdev->dev,
+ pdata->regulator[pdev->id], ri, NULL);
+ if (IS_ERR(rdev)) {
+ dev_err(&pdev->dev, "failed to register regulator %s\n",
+ ri->desc.name);
+ return PTR_ERR(rdev);
+ }
+
+ platform_set_drvdata(pdev, rdev);
+ return 0;
+}
+
+static int __devexit max8925_regulator_remove(struct platform_device *pdev)
+{
+ struct regulator_dev *rdev = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+ regulator_unregister(rdev);
+
+ return 0;
+}
+
+static struct platform_driver max8925_regulator_driver = {
+ .driver = {
+ .name = "max8925-regulator",
+ .owner = THIS_MODULE,
+ },
+ .probe = max8925_regulator_probe,
+ .remove = __devexit_p(max8925_regulator_remove),
+};
+
+static int __init max8925_regulator_init(void)
+{
+ return platform_driver_register(&max8925_regulator_driver);
+}
+subsys_initcall(max8925_regulator_init);
+
+static void __exit max8925_regulator_exit(void)
+{
+ platform_driver_unregister(&max8925_regulator_driver);
+}
+module_exit(max8925_regulator_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
+MODULE_DESCRIPTION("Regulator Driver for Maxim 8925 PMIC");
+MODULE_ALIAS("platform:max8925-regulator");
+
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/max8952.c b/ap/os/linux/linux-3.4.x/drivers/regulator/max8952.c
new file mode 100644
index 0000000..75d8940
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/max8952.c
@@ -0,0 +1,364 @@
+/*
+ * max8952.c - Voltage and current regulation for the Maxim 8952
+ *
+ * Copyright (C) 2010 Samsung Electronics
+ * MyungJoo Ham <myungjoo.ham@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/max8952.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+
+/* Registers */
+enum {
+ MAX8952_REG_MODE0,
+ MAX8952_REG_MODE1,
+ MAX8952_REG_MODE2,
+ MAX8952_REG_MODE3,
+ MAX8952_REG_CONTROL,
+ MAX8952_REG_SYNC,
+ MAX8952_REG_RAMP,
+ MAX8952_REG_CHIP_ID1,
+ MAX8952_REG_CHIP_ID2,
+};
+
+struct max8952_data {
+ struct i2c_client *client;
+ struct device *dev;
+ struct max8952_platform_data *pdata;
+ struct regulator_dev *rdev;
+
+ bool vid0;
+ bool vid1;
+ bool en;
+};
+
+static int max8952_read_reg(struct max8952_data *max8952, u8 reg)
+{
+ int ret = i2c_smbus_read_byte_data(max8952->client, reg);
+ if (ret > 0)
+ ret &= 0xff;
+
+ return ret;
+}
+
+static int max8952_write_reg(struct max8952_data *max8952,
+ u8 reg, u8 value)
+{
+ return i2c_smbus_write_byte_data(max8952->client, reg, value);
+}
+
+static int max8952_voltage(struct max8952_data *max8952, u8 mode)
+{
+ return (max8952->pdata->dvs_mode[mode] * 10 + 770) * 1000;
+}
+
+static int max8952_list_voltage(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ struct max8952_data *max8952 = rdev_get_drvdata(rdev);
+
+ if (rdev_get_id(rdev) != 0)
+ return -EINVAL;
+
+ return max8952_voltage(max8952, selector);
+}
+
+static int max8952_is_enabled(struct regulator_dev *rdev)
+{
+ struct max8952_data *max8952 = rdev_get_drvdata(rdev);
+ return max8952->en;
+}
+
+static int max8952_enable(struct regulator_dev *rdev)
+{
+ struct max8952_data *max8952 = rdev_get_drvdata(rdev);
+
+ /* If not valid, assume "ALWAYS_HIGH" */
+ if (gpio_is_valid(max8952->pdata->gpio_en))
+ gpio_set_value(max8952->pdata->gpio_en, 1);
+
+ max8952->en = true;
+ return 0;
+}
+
+static int max8952_disable(struct regulator_dev *rdev)
+{
+ struct max8952_data *max8952 = rdev_get_drvdata(rdev);
+
+ /* If not valid, assume "ALWAYS_HIGH" -> not permitted */
+ if (gpio_is_valid(max8952->pdata->gpio_en))
+ gpio_set_value(max8952->pdata->gpio_en, 0);
+ else
+ return -EPERM;
+
+ max8952->en = false;
+ return 0;
+}
+
+static int max8952_get_voltage(struct regulator_dev *rdev)
+{
+ struct max8952_data *max8952 = rdev_get_drvdata(rdev);
+ u8 vid = 0;
+
+ if (max8952->vid0)
+ vid += 1;
+ if (max8952->vid1)
+ vid += 2;
+
+ return max8952_voltage(max8952, vid);
+}
+
+static int max8952_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct max8952_data *max8952 = rdev_get_drvdata(rdev);
+ s8 vid = -1, i;
+
+ if (!gpio_is_valid(max8952->pdata->gpio_vid0) ||
+ !gpio_is_valid(max8952->pdata->gpio_vid1)) {
+ /* DVS not supported */
+ return -EPERM;
+ }
+
+ for (i = 0; i < MAX8952_NUM_DVS_MODE; i++) {
+ int volt = max8952_voltage(max8952, i);
+
+ /* Set the voltage as low as possible within the range */
+ if (volt <= max_uV && volt >= min_uV)
+ if (vid == -1 || max8952_voltage(max8952, vid) > volt)
+ vid = i;
+ }
+
+ if (vid >= 0 && vid < MAX8952_NUM_DVS_MODE) {
+ max8952->vid0 = (vid % 2 == 1);
+ max8952->vid1 = (((vid >> 1) % 2) == 1);
+ *selector = vid;
+ gpio_set_value(max8952->pdata->gpio_vid0, max8952->vid0);
+ gpio_set_value(max8952->pdata->gpio_vid1, max8952->vid1);
+ } else
+ return -EINVAL;
+
+ return 0;
+}
+
+static struct regulator_ops max8952_ops = {
+ .list_voltage = max8952_list_voltage,
+ .is_enabled = max8952_is_enabled,
+ .enable = max8952_enable,
+ .disable = max8952_disable,
+ .get_voltage = max8952_get_voltage,
+ .set_voltage = max8952_set_voltage,
+ .set_suspend_disable = max8952_disable,
+};
+
+static struct regulator_desc regulator = {
+ .name = "MAX8952_VOUT",
+ .id = 0,
+ .n_voltages = MAX8952_NUM_DVS_MODE,
+ .ops = &max8952_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+};
+
+static int __devinit max8952_pmic_probe(struct i2c_client *client,
+ const struct i2c_device_id *i2c_id)
+{
+ struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
+ struct max8952_platform_data *pdata = client->dev.platform_data;
+ struct max8952_data *max8952;
+
+ int ret = 0, err = 0;
+
+ if (!pdata) {
+ dev_err(&client->dev, "Require the platform data\n");
+ return -EINVAL;
+ }
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
+ return -EIO;
+
+ max8952 = kzalloc(sizeof(struct max8952_data), GFP_KERNEL);
+ if (!max8952)
+ return -ENOMEM;
+
+ max8952->client = client;
+ max8952->dev = &client->dev;
+ max8952->pdata = pdata;
+
+ max8952->rdev = regulator_register(®ulator, max8952->dev,
+ &pdata->reg_data, max8952, NULL);
+
+ if (IS_ERR(max8952->rdev)) {
+ ret = PTR_ERR(max8952->rdev);
+ dev_err(max8952->dev, "regulator init failed (%d)\n", ret);
+ goto err_reg;
+ }
+
+ max8952->en = !!(pdata->reg_data.constraints.boot_on);
+ max8952->vid0 = (pdata->default_mode % 2) == 1;
+ max8952->vid1 = ((pdata->default_mode >> 1) % 2) == 1;
+
+ if (gpio_is_valid(pdata->gpio_en)) {
+ if (!gpio_request(pdata->gpio_en, "MAX8952 EN"))
+ gpio_direction_output(pdata->gpio_en, max8952->en);
+ else
+ err = 1;
+ } else
+ err = 2;
+
+ if (err) {
+ dev_info(max8952->dev, "EN gpio invalid: assume that EN"
+ "is always High\n");
+ max8952->en = 1;
+ pdata->gpio_en = -1; /* Mark invalid */
+ }
+
+ err = 0;
+
+ if (gpio_is_valid(pdata->gpio_vid0) &&
+ gpio_is_valid(pdata->gpio_vid1)) {
+ if (!gpio_request(pdata->gpio_vid0, "MAX8952 VID0"))
+ gpio_direction_output(pdata->gpio_vid0,
+ (pdata->default_mode) % 2);
+ else
+ err = 1;
+
+ if (!gpio_request(pdata->gpio_vid1, "MAX8952 VID1"))
+ gpio_direction_output(pdata->gpio_vid1,
+ (pdata->default_mode >> 1) % 2);
+ else {
+ if (!err)
+ gpio_free(pdata->gpio_vid0);
+ err = 2;
+ }
+
+ } else
+ err = 3;
+
+ if (err) {
+ dev_warn(max8952->dev, "VID0/1 gpio invalid: "
+ "DVS not available.\n");
+ max8952->vid0 = 0;
+ max8952->vid1 = 0;
+ /* Mark invalid */
+ pdata->gpio_vid0 = -1;
+ pdata->gpio_vid1 = -1;
+
+ /* Disable Pulldown of EN only */
+ max8952_write_reg(max8952, MAX8952_REG_CONTROL, 0x60);
+
+ dev_err(max8952->dev, "DVS modes disabled because VID0 and VID1"
+ " do not have proper controls.\n");
+ } else {
+ /*
+ * Disable Pulldown on EN, VID0, VID1 to reduce
+ * leakage current of MAX8952 assuming that MAX8952
+ * is turned on (EN==1). Note that without having VID0/1
+ * properly connected, turning pulldown off can be
+ * problematic. Thus, turn this off only when they are
+ * controllable by GPIO.
+ */
+ max8952_write_reg(max8952, MAX8952_REG_CONTROL, 0x0);
+ }
+
+ max8952_write_reg(max8952, MAX8952_REG_MODE0,
+ (max8952_read_reg(max8952,
+ MAX8952_REG_MODE0) & 0xC0) |
+ (pdata->dvs_mode[0] & 0x3F));
+ max8952_write_reg(max8952, MAX8952_REG_MODE1,
+ (max8952_read_reg(max8952,
+ MAX8952_REG_MODE1) & 0xC0) |
+ (pdata->dvs_mode[1] & 0x3F));
+ max8952_write_reg(max8952, MAX8952_REG_MODE2,
+ (max8952_read_reg(max8952,
+ MAX8952_REG_MODE2) & 0xC0) |
+ (pdata->dvs_mode[2] & 0x3F));
+ max8952_write_reg(max8952, MAX8952_REG_MODE3,
+ (max8952_read_reg(max8952,
+ MAX8952_REG_MODE3) & 0xC0) |
+ (pdata->dvs_mode[3] & 0x3F));
+
+ max8952_write_reg(max8952, MAX8952_REG_SYNC,
+ (max8952_read_reg(max8952, MAX8952_REG_SYNC) & 0x3F) |
+ ((pdata->sync_freq & 0x3) << 6));
+ max8952_write_reg(max8952, MAX8952_REG_RAMP,
+ (max8952_read_reg(max8952, MAX8952_REG_RAMP) & 0x1F) |
+ ((pdata->ramp_speed & 0x7) << 5));
+
+ i2c_set_clientdata(client, max8952);
+
+ return 0;
+
+err_reg:
+ kfree(max8952);
+ return ret;
+}
+
+static int __devexit max8952_pmic_remove(struct i2c_client *client)
+{
+ struct max8952_data *max8952 = i2c_get_clientdata(client);
+ struct max8952_platform_data *pdata = max8952->pdata;
+ struct regulator_dev *rdev = max8952->rdev;
+
+ regulator_unregister(rdev);
+
+ gpio_free(pdata->gpio_vid0);
+ gpio_free(pdata->gpio_vid1);
+ gpio_free(pdata->gpio_en);
+
+ kfree(max8952);
+ return 0;
+}
+
+static const struct i2c_device_id max8952_ids[] = {
+ { "max8952", 0 },
+ { },
+};
+MODULE_DEVICE_TABLE(i2c, max8952_ids);
+
+static struct i2c_driver max8952_pmic_driver = {
+ .probe = max8952_pmic_probe,
+ .remove = __devexit_p(max8952_pmic_remove),
+ .driver = {
+ .name = "max8952",
+ },
+ .id_table = max8952_ids,
+};
+
+static int __init max8952_pmic_init(void)
+{
+ return i2c_add_driver(&max8952_pmic_driver);
+}
+subsys_initcall(max8952_pmic_init);
+
+static void __exit max8952_pmic_exit(void)
+{
+ i2c_del_driver(&max8952_pmic_driver);
+}
+module_exit(max8952_pmic_exit);
+
+MODULE_DESCRIPTION("MAXIM 8952 voltage regulator driver");
+MODULE_AUTHOR("MyungJoo Ham <myungjoo.ham@samsung.com>");
+MODULE_LICENSE("GPL");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/max8997.c b/ap/os/linux/linux-3.4.x/drivers/regulator/max8997.c
new file mode 100644
index 0000000..8350f50
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/max8997.c
@@ -0,0 +1,1210 @@
+/*
+ * max8997.c - Regulator driver for the Maxim 8997/8966
+ *
+ * Copyright (C) 2011 Samsung Electronics
+ * MyungJoo Ham <myungjoo.ham@smasung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * This driver is based on max8998.c
+ */
+
+#include <linux/bug.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/max8997.h>
+#include <linux/mfd/max8997-private.h>
+
+struct max8997_data {
+ struct device *dev;
+ struct max8997_dev *iodev;
+ int num_regulators;
+ struct regulator_dev **rdev;
+ int ramp_delay; /* in mV/us */
+
+ bool buck1_gpiodvs;
+ bool buck2_gpiodvs;
+ bool buck5_gpiodvs;
+ u8 buck1_vol[8];
+ u8 buck2_vol[8];
+ u8 buck5_vol[8];
+ int buck125_gpios[3];
+ int buck125_gpioindex;
+ bool ignore_gpiodvs_side_effect;
+
+ u8 saved_states[MAX8997_REG_MAX];
+};
+
+static inline void max8997_set_gpio(struct max8997_data *max8997)
+{
+ int set3 = (max8997->buck125_gpioindex) & 0x1;
+ int set2 = ((max8997->buck125_gpioindex) >> 1) & 0x1;
+ int set1 = ((max8997->buck125_gpioindex) >> 2) & 0x1;
+
+ gpio_set_value(max8997->buck125_gpios[0], set1);
+ gpio_set_value(max8997->buck125_gpios[1], set2);
+ gpio_set_value(max8997->buck125_gpios[2], set3);
+}
+
+struct voltage_map_desc {
+ int min;
+ int max;
+ int step;
+ unsigned int n_bits;
+};
+
+/* Voltage maps in uV */
+static const struct voltage_map_desc ldo_voltage_map_desc = {
+ .min = 800000, .max = 3950000, .step = 50000, .n_bits = 6,
+}; /* LDO1 ~ 18, 21 all */
+
+static const struct voltage_map_desc buck1245_voltage_map_desc = {
+ .min = 650000, .max = 2225000, .step = 25000, .n_bits = 6,
+}; /* Buck1, 2, 4, 5 */
+
+static const struct voltage_map_desc buck37_voltage_map_desc = {
+ .min = 750000, .max = 3900000, .step = 50000, .n_bits = 6,
+}; /* Buck3, 7 */
+
+/* current map in uA */
+static const struct voltage_map_desc charger_current_map_desc = {
+ .min = 200000, .max = 950000, .step = 50000, .n_bits = 4,
+};
+
+static const struct voltage_map_desc topoff_current_map_desc = {
+ .min = 50000, .max = 200000, .step = 10000, .n_bits = 4,
+};
+
+static const struct voltage_map_desc *reg_voltage_map[] = {
+ [MAX8997_LDO1] = &ldo_voltage_map_desc,
+ [MAX8997_LDO2] = &ldo_voltage_map_desc,
+ [MAX8997_LDO3] = &ldo_voltage_map_desc,
+ [MAX8997_LDO4] = &ldo_voltage_map_desc,
+ [MAX8997_LDO5] = &ldo_voltage_map_desc,
+ [MAX8997_LDO6] = &ldo_voltage_map_desc,
+ [MAX8997_LDO7] = &ldo_voltage_map_desc,
+ [MAX8997_LDO8] = &ldo_voltage_map_desc,
+ [MAX8997_LDO9] = &ldo_voltage_map_desc,
+ [MAX8997_LDO10] = &ldo_voltage_map_desc,
+ [MAX8997_LDO11] = &ldo_voltage_map_desc,
+ [MAX8997_LDO12] = &ldo_voltage_map_desc,
+ [MAX8997_LDO13] = &ldo_voltage_map_desc,
+ [MAX8997_LDO14] = &ldo_voltage_map_desc,
+ [MAX8997_LDO15] = &ldo_voltage_map_desc,
+ [MAX8997_LDO16] = &ldo_voltage_map_desc,
+ [MAX8997_LDO17] = &ldo_voltage_map_desc,
+ [MAX8997_LDO18] = &ldo_voltage_map_desc,
+ [MAX8997_LDO21] = &ldo_voltage_map_desc,
+ [MAX8997_BUCK1] = &buck1245_voltage_map_desc,
+ [MAX8997_BUCK2] = &buck1245_voltage_map_desc,
+ [MAX8997_BUCK3] = &buck37_voltage_map_desc,
+ [MAX8997_BUCK4] = &buck1245_voltage_map_desc,
+ [MAX8997_BUCK5] = &buck1245_voltage_map_desc,
+ [MAX8997_BUCK6] = NULL,
+ [MAX8997_BUCK7] = &buck37_voltage_map_desc,
+ [MAX8997_EN32KHZ_AP] = NULL,
+ [MAX8997_EN32KHZ_CP] = NULL,
+ [MAX8997_ENVICHG] = NULL,
+ [MAX8997_ESAFEOUT1] = NULL,
+ [MAX8997_ESAFEOUT2] = NULL,
+ [MAX8997_CHARGER_CV] = NULL,
+ [MAX8997_CHARGER] = &charger_current_map_desc,
+ [MAX8997_CHARGER_TOPOFF] = &topoff_current_map_desc,
+};
+
+static int max8997_list_voltage_safeout(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ int rid = rdev_get_id(rdev);
+
+ if (rid == MAX8997_ESAFEOUT1 || rid == MAX8997_ESAFEOUT2) {
+ switch (selector) {
+ case 0:
+ return 4850000;
+ case 1:
+ return 4900000;
+ case 2:
+ return 4950000;
+ case 3:
+ return 3300000;
+ default:
+ return -EINVAL;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static int max8997_list_voltage_charger_cv(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ int rid = rdev_get_id(rdev);
+
+ if (rid != MAX8997_CHARGER_CV)
+ goto err;
+
+ switch (selector) {
+ case 0x00:
+ return 4200000;
+ case 0x01 ... 0x0E:
+ return 4000000 + 20000 * (selector - 0x01);
+ case 0x0F:
+ return 4350000;
+ default:
+ return -EINVAL;
+ }
+err:
+ return -EINVAL;
+}
+
+static int max8997_list_voltage(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ const struct voltage_map_desc *desc;
+ int rid = rdev_get_id(rdev);
+ int val;
+
+ if (rid >= ARRAY_SIZE(reg_voltage_map) ||
+ rid < 0)
+ return -EINVAL;
+
+ desc = reg_voltage_map[rid];
+ if (desc == NULL)
+ return -EINVAL;
+
+ val = desc->min + desc->step * selector;
+ if (val > desc->max)
+ return -EINVAL;
+
+ return val;
+}
+
+static int max8997_get_enable_register(struct regulator_dev *rdev,
+ int *reg, int *mask, int *pattern)
+{
+ int rid = rdev_get_id(rdev);
+
+ switch (rid) {
+ case MAX8997_LDO1 ... MAX8997_LDO21:
+ *reg = MAX8997_REG_LDO1CTRL + (rid - MAX8997_LDO1);
+ *mask = 0xC0;
+ *pattern = 0xC0;
+ break;
+ case MAX8997_BUCK1:
+ *reg = MAX8997_REG_BUCK1CTRL;
+ *mask = 0x01;
+ *pattern = 0x01;
+ break;
+ case MAX8997_BUCK2:
+ *reg = MAX8997_REG_BUCK2CTRL;
+ *mask = 0x01;
+ *pattern = 0x01;
+ break;
+ case MAX8997_BUCK3:
+ *reg = MAX8997_REG_BUCK3CTRL;
+ *mask = 0x01;
+ *pattern = 0x01;
+ break;
+ case MAX8997_BUCK4:
+ *reg = MAX8997_REG_BUCK4CTRL;
+ *mask = 0x01;
+ *pattern = 0x01;
+ break;
+ case MAX8997_BUCK5:
+ *reg = MAX8997_REG_BUCK5CTRL;
+ *mask = 0x01;
+ *pattern = 0x01;
+ break;
+ case MAX8997_BUCK6:
+ *reg = MAX8997_REG_BUCK6CTRL;
+ *mask = 0x01;
+ *pattern = 0x01;
+ break;
+ case MAX8997_BUCK7:
+ *reg = MAX8997_REG_BUCK7CTRL;
+ *mask = 0x01;
+ *pattern = 0x01;
+ break;
+ case MAX8997_EN32KHZ_AP ... MAX8997_EN32KHZ_CP:
+ *reg = MAX8997_REG_MAINCON1;
+ *mask = 0x01 << (rid - MAX8997_EN32KHZ_AP);
+ *pattern = 0x01 << (rid - MAX8997_EN32KHZ_AP);
+ break;
+ case MAX8997_ENVICHG:
+ *reg = MAX8997_REG_MBCCTRL1;
+ *mask = 0x80;
+ *pattern = 0x80;
+ break;
+ case MAX8997_ESAFEOUT1 ... MAX8997_ESAFEOUT2:
+ *reg = MAX8997_REG_SAFEOUTCTRL;
+ *mask = 0x40 << (rid - MAX8997_ESAFEOUT1);
+ *pattern = 0x40 << (rid - MAX8997_ESAFEOUT1);
+ break;
+ case MAX8997_CHARGER:
+ *reg = MAX8997_REG_MBCCTRL2;
+ *mask = 0x40;
+ *pattern = 0x40;
+ break;
+ default:
+ /* Not controllable or not exists */
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int max8997_reg_is_enabled(struct regulator_dev *rdev)
+{
+ struct max8997_data *max8997 = rdev_get_drvdata(rdev);
+ struct i2c_client *i2c = max8997->iodev->i2c;
+ int ret, reg, mask, pattern;
+ u8 val;
+
+ ret = max8997_get_enable_register(rdev, ®, &mask, &pattern);
+ if (ret == -EINVAL)
+ return 1; /* "not controllable" */
+ else if (ret)
+ return ret;
+
+ ret = max8997_read_reg(i2c, reg, &val);
+ if (ret)
+ return ret;
+
+ return (val & mask) == pattern;
+}
+
+static int max8997_reg_enable(struct regulator_dev *rdev)
+{
+ struct max8997_data *max8997 = rdev_get_drvdata(rdev);
+ struct i2c_client *i2c = max8997->iodev->i2c;
+ int ret, reg, mask, pattern;
+
+ ret = max8997_get_enable_register(rdev, ®, &mask, &pattern);
+ if (ret)
+ return ret;
+
+ return max8997_update_reg(i2c, reg, pattern, mask);
+}
+
+static int max8997_reg_disable(struct regulator_dev *rdev)
+{
+ struct max8997_data *max8997 = rdev_get_drvdata(rdev);
+ struct i2c_client *i2c = max8997->iodev->i2c;
+ int ret, reg, mask, pattern;
+
+ ret = max8997_get_enable_register(rdev, ®, &mask, &pattern);
+ if (ret)
+ return ret;
+
+ return max8997_update_reg(i2c, reg, ~pattern, mask);
+}
+
+static int max8997_get_voltage_register(struct regulator_dev *rdev,
+ int *_reg, int *_shift, int *_mask)
+{
+ int rid = rdev_get_id(rdev);
+ int reg, shift = 0, mask = 0x3f;
+
+ switch (rid) {
+ case MAX8997_LDO1 ... MAX8997_LDO21:
+ reg = MAX8997_REG_LDO1CTRL + (rid - MAX8997_LDO1);
+ break;
+ case MAX8997_BUCK1:
+ reg = MAX8997_REG_BUCK1DVS1;
+ break;
+ case MAX8997_BUCK2:
+ reg = MAX8997_REG_BUCK2DVS1;
+ break;
+ case MAX8997_BUCK3:
+ reg = MAX8997_REG_BUCK3DVS;
+ break;
+ case MAX8997_BUCK4:
+ reg = MAX8997_REG_BUCK4DVS;
+ break;
+ case MAX8997_BUCK5:
+ reg = MAX8997_REG_BUCK5DVS1;
+ break;
+ case MAX8997_BUCK7:
+ reg = MAX8997_REG_BUCK7DVS;
+ break;
+ case MAX8997_ESAFEOUT1 ... MAX8997_ESAFEOUT2:
+ reg = MAX8997_REG_SAFEOUTCTRL;
+ shift = (rid == MAX8997_ESAFEOUT2) ? 2 : 0;
+ mask = 0x3;
+ break;
+ case MAX8997_CHARGER_CV:
+ reg = MAX8997_REG_MBCCTRL3;
+ shift = 0;
+ mask = 0xf;
+ break;
+ case MAX8997_CHARGER:
+ reg = MAX8997_REG_MBCCTRL4;
+ shift = 0;
+ mask = 0xf;
+ break;
+ case MAX8997_CHARGER_TOPOFF:
+ reg = MAX8997_REG_MBCCTRL5;
+ shift = 0;
+ mask = 0xf;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ *_reg = reg;
+ *_shift = shift;
+ *_mask = mask;
+
+ return 0;
+}
+
+static int max8997_get_voltage(struct regulator_dev *rdev)
+{
+ struct max8997_data *max8997 = rdev_get_drvdata(rdev);
+ struct i2c_client *i2c = max8997->iodev->i2c;
+ int reg, shift, mask, ret;
+ int rid = rdev_get_id(rdev);
+ u8 val;
+
+ ret = max8997_get_voltage_register(rdev, ®, &shift, &mask);
+ if (ret)
+ return ret;
+
+ if ((rid == MAX8997_BUCK1 && max8997->buck1_gpiodvs) ||
+ (rid == MAX8997_BUCK2 && max8997->buck2_gpiodvs) ||
+ (rid == MAX8997_BUCK5 && max8997->buck5_gpiodvs))
+ reg += max8997->buck125_gpioindex;
+
+ ret = max8997_read_reg(i2c, reg, &val);
+ if (ret)
+ return ret;
+
+ val >>= shift;
+ val &= mask;
+
+ if (rdev->desc && rdev->desc->ops && rdev->desc->ops->list_voltage)
+ return rdev->desc->ops->list_voltage(rdev, val);
+
+ /*
+ * max8997_list_voltage returns value for any rdev with voltage_map,
+ * which works for "CHARGER" and "CHARGER TOPOFF" that do not have
+ * list_voltage ops (they are current regulators).
+ */
+ return max8997_list_voltage(rdev, val);
+}
+
+static inline int max8997_get_voltage_proper_val(
+ const struct voltage_map_desc *desc,
+ int min_vol, int max_vol)
+{
+ int i = 0;
+
+ if (desc == NULL)
+ return -EINVAL;
+
+ if (max_vol < desc->min || min_vol > desc->max)
+ return -EINVAL;
+
+ while (desc->min + desc->step * i < min_vol &&
+ desc->min + desc->step * i < desc->max)
+ i++;
+
+ if (desc->min + desc->step * i > max_vol)
+ return -EINVAL;
+
+ if (i >= (1 << desc->n_bits))
+ return -EINVAL;
+
+ return i;
+}
+
+static int max8997_set_voltage_charger_cv(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct max8997_data *max8997 = rdev_get_drvdata(rdev);
+ struct i2c_client *i2c = max8997->iodev->i2c;
+ int rid = rdev_get_id(rdev);
+ int lb, ub;
+ int reg, shift = 0, mask, ret = 0;
+ u8 val = 0x0;
+
+ if (rid != MAX8997_CHARGER_CV)
+ return -EINVAL;
+
+ ret = max8997_get_voltage_register(rdev, ®, &shift, &mask);
+ if (ret)
+ return ret;
+
+ if (max_uV < 4000000 || min_uV > 4350000)
+ return -EINVAL;
+
+ if (min_uV <= 4000000) {
+ if (max_uV >= 4000000)
+ return -EINVAL;
+ else
+ val = 0x1;
+ } else if (min_uV <= 4200000 && max_uV >= 4200000)
+ val = 0x0;
+ else {
+ lb = (min_uV - 4000001) / 20000 + 2;
+ ub = (max_uV - 4000000) / 20000 + 1;
+
+ if (lb > ub)
+ return -EINVAL;
+
+ if (lb < 0xf)
+ val = lb;
+ else {
+ if (ub >= 0xf)
+ val = 0xf;
+ else
+ return -EINVAL;
+ }
+ }
+
+ *selector = val;
+
+ ret = max8997_update_reg(i2c, reg, val << shift, mask);
+
+ return ret;
+}
+
+/*
+ * For LDO1 ~ LDO21, BUCK1~5, BUCK7, CHARGER, CHARGER_TOPOFF
+ * BUCK1, 2, and 5 are available if they are not controlled by gpio
+ */
+static int max8997_set_voltage_ldobuck(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct max8997_data *max8997 = rdev_get_drvdata(rdev);
+ struct i2c_client *i2c = max8997->iodev->i2c;
+ const struct voltage_map_desc *desc;
+ int rid = rdev_get_id(rdev);
+ int reg, shift = 0, mask, ret;
+ int i;
+ u8 org;
+
+ switch (rid) {
+ case MAX8997_LDO1 ... MAX8997_LDO21:
+ break;
+ case MAX8997_BUCK1 ... MAX8997_BUCK5:
+ break;
+ case MAX8997_BUCK6:
+ return -EINVAL;
+ case MAX8997_BUCK7:
+ break;
+ case MAX8997_CHARGER:
+ break;
+ case MAX8997_CHARGER_TOPOFF:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ desc = reg_voltage_map[rid];
+
+ i = max8997_get_voltage_proper_val(desc, min_uV, max_uV);
+ if (i < 0)
+ return i;
+
+ ret = max8997_get_voltage_register(rdev, ®, &shift, &mask);
+ if (ret)
+ return ret;
+
+ max8997_read_reg(i2c, reg, &org);
+ org = (org & mask) >> shift;
+
+ ret = max8997_update_reg(i2c, reg, i << shift, mask << shift);
+ *selector = i;
+
+ if (rid == MAX8997_BUCK1 || rid == MAX8997_BUCK2 ||
+ rid == MAX8997_BUCK4 || rid == MAX8997_BUCK5) {
+ /* If the voltage is increasing */
+ if (org < i)
+ udelay(DIV_ROUND_UP(desc->step * (i - org),
+ max8997->ramp_delay * 1000));
+ }
+
+ return ret;
+}
+
+/*
+ * Assess the damage on the voltage setting of BUCK1,2,5 by the change.
+ *
+ * When GPIO-DVS mode is used for multiple bucks, changing the voltage value
+ * of one of the bucks may affect that of another buck, which is the side
+ * effect of the change (set_voltage). This function examines the GPIO-DVS
+ * configurations and checks whether such side-effect exists.
+ */
+static int max8997_assess_side_effect(struct regulator_dev *rdev,
+ u8 new_val, int *best)
+{
+ struct max8997_data *max8997 = rdev_get_drvdata(rdev);
+ int rid = rdev_get_id(rdev);
+ u8 *buckx_val[3];
+ bool buckx_gpiodvs[3];
+ int side_effect[8];
+ int min_side_effect = INT_MAX;
+ int i;
+
+ *best = -1;
+
+ switch (rid) {
+ case MAX8997_BUCK1:
+ rid = 0;
+ break;
+ case MAX8997_BUCK2:
+ rid = 1;
+ break;
+ case MAX8997_BUCK5:
+ rid = 2;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ buckx_val[0] = max8997->buck1_vol;
+ buckx_val[1] = max8997->buck2_vol;
+ buckx_val[2] = max8997->buck5_vol;
+ buckx_gpiodvs[0] = max8997->buck1_gpiodvs;
+ buckx_gpiodvs[1] = max8997->buck2_gpiodvs;
+ buckx_gpiodvs[2] = max8997->buck5_gpiodvs;
+
+ for (i = 0; i < 8; i++) {
+ int others;
+
+ if (new_val != (buckx_val[rid])[i]) {
+ side_effect[i] = -1;
+ continue;
+ }
+
+ side_effect[i] = 0;
+ for (others = 0; others < 3; others++) {
+ int diff;
+
+ if (others == rid)
+ continue;
+ if (buckx_gpiodvs[others] == false)
+ continue; /* Not affected */
+ diff = (buckx_val[others])[i] -
+ (buckx_val[others])[max8997->buck125_gpioindex];
+ if (diff > 0)
+ side_effect[i] += diff;
+ else if (diff < 0)
+ side_effect[i] -= diff;
+ }
+ if (side_effect[i] == 0) {
+ *best = i;
+ return 0; /* NO SIDE EFFECT! Use This! */
+ }
+ if (side_effect[i] < min_side_effect) {
+ min_side_effect = side_effect[i];
+ *best = i;
+ }
+ }
+
+ if (*best == -1)
+ return -EINVAL;
+
+ return side_effect[*best];
+}
+
+/*
+ * For Buck 1 ~ 5 and 7. If it is not controlled by GPIO, this calls
+ * max8997_set_voltage_ldobuck to do the job.
+ */
+static int max8997_set_voltage_buck(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct max8997_data *max8997 = rdev_get_drvdata(rdev);
+ int rid = rdev_get_id(rdev);
+ const struct voltage_map_desc *desc;
+ int new_val, new_idx, damage, tmp_val, tmp_idx, tmp_dmg;
+ bool gpio_dvs_mode = false;
+
+ if (rid < MAX8997_BUCK1 || rid > MAX8997_BUCK7)
+ return -EINVAL;
+
+ switch (rid) {
+ case MAX8997_BUCK1:
+ if (max8997->buck1_gpiodvs)
+ gpio_dvs_mode = true;
+ break;
+ case MAX8997_BUCK2:
+ if (max8997->buck2_gpiodvs)
+ gpio_dvs_mode = true;
+ break;
+ case MAX8997_BUCK5:
+ if (max8997->buck5_gpiodvs)
+ gpio_dvs_mode = true;
+ break;
+ }
+
+ if (!gpio_dvs_mode)
+ return max8997_set_voltage_ldobuck(rdev, min_uV, max_uV,
+ selector);
+
+ desc = reg_voltage_map[rid];
+ new_val = max8997_get_voltage_proper_val(desc, min_uV, max_uV);
+ if (new_val < 0)
+ return new_val;
+
+ tmp_dmg = INT_MAX;
+ tmp_idx = -1;
+ tmp_val = -1;
+ do {
+ damage = max8997_assess_side_effect(rdev, new_val, &new_idx);
+ if (damage == 0)
+ goto out;
+
+ if (tmp_dmg > damage) {
+ tmp_idx = new_idx;
+ tmp_val = new_val;
+ tmp_dmg = damage;
+ }
+
+ new_val++;
+ } while (desc->min + desc->step * new_val <= desc->max);
+
+ new_idx = tmp_idx;
+ new_val = tmp_val;
+
+ if (max8997->ignore_gpiodvs_side_effect == false)
+ return -EINVAL;
+
+ dev_warn(&rdev->dev, "MAX8997 GPIO-DVS Side Effect Warning: GPIO SET:"
+ " %d -> %d\n", max8997->buck125_gpioindex, tmp_idx);
+
+out:
+ if (new_idx < 0 || new_val < 0)
+ return -EINVAL;
+
+ max8997->buck125_gpioindex = new_idx;
+ max8997_set_gpio(max8997);
+ *selector = new_val;
+
+ return 0;
+}
+
+static const int safeoutvolt[] = {
+ 3300000,
+ 4850000,
+ 4900000,
+ 4950000,
+};
+
+/* For SAFEOUT1 and SAFEOUT2 */
+static int max8997_set_voltage_safeout(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct max8997_data *max8997 = rdev_get_drvdata(rdev);
+ struct i2c_client *i2c = max8997->iodev->i2c;
+ int rid = rdev_get_id(rdev);
+ int reg, shift = 0, mask, ret;
+ int i = 0;
+ u8 val;
+
+ if (rid != MAX8997_ESAFEOUT1 && rid != MAX8997_ESAFEOUT2)
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(safeoutvolt); i++) {
+ if (min_uV <= safeoutvolt[i] &&
+ max_uV >= safeoutvolt[i])
+ break;
+ }
+
+ if (i >= ARRAY_SIZE(safeoutvolt))
+ return -EINVAL;
+
+ if (i == 0)
+ val = 0x3;
+ else
+ val = i - 1;
+
+ ret = max8997_get_voltage_register(rdev, ®, &shift, &mask);
+ if (ret)
+ return ret;
+
+ ret = max8997_update_reg(i2c, reg, val << shift, mask << shift);
+ *selector = val;
+
+ return ret;
+}
+
+static int max8997_reg_enable_suspend(struct regulator_dev *rdev)
+{
+ return 0;
+}
+
+static int max8997_reg_disable_suspend(struct regulator_dev *rdev)
+{
+ struct max8997_data *max8997 = rdev_get_drvdata(rdev);
+ struct i2c_client *i2c = max8997->iodev->i2c;
+ int ret, reg, mask, pattern;
+ int rid = rdev_get_id(rdev);
+
+ ret = max8997_get_enable_register(rdev, ®, &mask, &pattern);
+ if (ret)
+ return ret;
+
+ max8997_read_reg(i2c, reg, &max8997->saved_states[rid]);
+
+ if (rid == MAX8997_LDO1 ||
+ rid == MAX8997_LDO10 ||
+ rid == MAX8997_LDO21) {
+ dev_dbg(&rdev->dev, "Conditional Power-Off for %s\n",
+ rdev->desc->name);
+ return max8997_update_reg(i2c, reg, 0x40, mask);
+ }
+
+ dev_dbg(&rdev->dev, "Full Power-Off for %s (%xh -> %xh)\n",
+ rdev->desc->name, max8997->saved_states[rid] & mask,
+ (~pattern) & mask);
+ return max8997_update_reg(i2c, reg, ~pattern, mask);
+}
+
+static struct regulator_ops max8997_ldo_ops = {
+ .list_voltage = max8997_list_voltage,
+ .is_enabled = max8997_reg_is_enabled,
+ .enable = max8997_reg_enable,
+ .disable = max8997_reg_disable,
+ .get_voltage = max8997_get_voltage,
+ .set_voltage = max8997_set_voltage_ldobuck,
+ .set_suspend_enable = max8997_reg_enable_suspend,
+ .set_suspend_disable = max8997_reg_disable_suspend,
+};
+
+static struct regulator_ops max8997_buck_ops = {
+ .list_voltage = max8997_list_voltage,
+ .is_enabled = max8997_reg_is_enabled,
+ .enable = max8997_reg_enable,
+ .disable = max8997_reg_disable,
+ .get_voltage = max8997_get_voltage,
+ .set_voltage = max8997_set_voltage_buck,
+ .set_suspend_enable = max8997_reg_enable_suspend,
+ .set_suspend_disable = max8997_reg_disable_suspend,
+};
+
+static struct regulator_ops max8997_fixedvolt_ops = {
+ .list_voltage = max8997_list_voltage,
+ .is_enabled = max8997_reg_is_enabled,
+ .enable = max8997_reg_enable,
+ .disable = max8997_reg_disable,
+ .set_suspend_enable = max8997_reg_enable_suspend,
+ .set_suspend_disable = max8997_reg_disable_suspend,
+};
+
+static struct regulator_ops max8997_safeout_ops = {
+ .list_voltage = max8997_list_voltage_safeout,
+ .is_enabled = max8997_reg_is_enabled,
+ .enable = max8997_reg_enable,
+ .disable = max8997_reg_disable,
+ .get_voltage = max8997_get_voltage,
+ .set_voltage = max8997_set_voltage_safeout,
+ .set_suspend_enable = max8997_reg_enable_suspend,
+ .set_suspend_disable = max8997_reg_disable_suspend,
+};
+
+static struct regulator_ops max8997_fixedstate_ops = {
+ .list_voltage = max8997_list_voltage_charger_cv,
+ .get_voltage = max8997_get_voltage,
+ .set_voltage = max8997_set_voltage_charger_cv,
+};
+
+static int max8997_set_voltage_ldobuck_wrap(struct regulator_dev *rdev,
+ int min_uV, int max_uV)
+{
+ unsigned dummy;
+
+ return max8997_set_voltage_ldobuck(rdev, min_uV, max_uV, &dummy);
+}
+
+
+static struct regulator_ops max8997_charger_ops = {
+ .is_enabled = max8997_reg_is_enabled,
+ .enable = max8997_reg_enable,
+ .disable = max8997_reg_disable,
+ .get_current_limit = max8997_get_voltage,
+ .set_current_limit = max8997_set_voltage_ldobuck_wrap,
+};
+
+static struct regulator_ops max8997_charger_fixedstate_ops = {
+ .is_enabled = max8997_reg_is_enabled,
+ .get_current_limit = max8997_get_voltage,
+ .set_current_limit = max8997_set_voltage_ldobuck_wrap,
+};
+
+#define regulator_desc_ldo(num) { \
+ .name = "LDO"#num, \
+ .id = MAX8997_LDO##num, \
+ .ops = &max8997_ldo_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+}
+#define regulator_desc_buck(num) { \
+ .name = "BUCK"#num, \
+ .id = MAX8997_BUCK##num, \
+ .ops = &max8997_buck_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+}
+
+static struct regulator_desc regulators[] = {
+ regulator_desc_ldo(1),
+ regulator_desc_ldo(2),
+ regulator_desc_ldo(3),
+ regulator_desc_ldo(4),
+ regulator_desc_ldo(5),
+ regulator_desc_ldo(6),
+ regulator_desc_ldo(7),
+ regulator_desc_ldo(8),
+ regulator_desc_ldo(9),
+ regulator_desc_ldo(10),
+ regulator_desc_ldo(11),
+ regulator_desc_ldo(12),
+ regulator_desc_ldo(13),
+ regulator_desc_ldo(14),
+ regulator_desc_ldo(15),
+ regulator_desc_ldo(16),
+ regulator_desc_ldo(17),
+ regulator_desc_ldo(18),
+ regulator_desc_ldo(21),
+ regulator_desc_buck(1),
+ regulator_desc_buck(2),
+ regulator_desc_buck(3),
+ regulator_desc_buck(4),
+ regulator_desc_buck(5),
+ {
+ .name = "BUCK6",
+ .id = MAX8997_BUCK6,
+ .ops = &max8997_fixedvolt_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ regulator_desc_buck(7),
+ {
+ .name = "EN32KHz_AP",
+ .id = MAX8997_EN32KHZ_AP,
+ .ops = &max8997_fixedvolt_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "EN32KHz_CP",
+ .id = MAX8997_EN32KHZ_CP,
+ .ops = &max8997_fixedvolt_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "ENVICHG",
+ .id = MAX8997_ENVICHG,
+ .ops = &max8997_fixedvolt_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "ESAFEOUT1",
+ .id = MAX8997_ESAFEOUT1,
+ .ops = &max8997_safeout_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "ESAFEOUT2",
+ .id = MAX8997_ESAFEOUT2,
+ .ops = &max8997_safeout_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "CHARGER_CV",
+ .id = MAX8997_CHARGER_CV,
+ .ops = &max8997_fixedstate_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "CHARGER",
+ .id = MAX8997_CHARGER,
+ .ops = &max8997_charger_ops,
+ .type = REGULATOR_CURRENT,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "CHARGER_TOPOFF",
+ .id = MAX8997_CHARGER_TOPOFF,
+ .ops = &max8997_charger_fixedstate_ops,
+ .type = REGULATOR_CURRENT,
+ .owner = THIS_MODULE,
+ },
+};
+
+static __devinit int max8997_pmic_probe(struct platform_device *pdev)
+{
+ struct max8997_dev *iodev = dev_get_drvdata(pdev->dev.parent);
+ struct max8997_platform_data *pdata = dev_get_platdata(iodev->dev);
+ struct regulator_dev **rdev;
+ struct max8997_data *max8997;
+ struct i2c_client *i2c;
+ int i, ret, size;
+ u8 max_buck1 = 0, max_buck2 = 0, max_buck5 = 0;
+
+ if (!pdata) {
+ dev_err(pdev->dev.parent, "No platform init data supplied.\n");
+ return -ENODEV;
+ }
+
+ max8997 = kzalloc(sizeof(struct max8997_data), GFP_KERNEL);
+ if (!max8997)
+ return -ENOMEM;
+
+ size = sizeof(struct regulator_dev *) * pdata->num_regulators;
+ max8997->rdev = kzalloc(size, GFP_KERNEL);
+ if (!max8997->rdev) {
+ kfree(max8997);
+ return -ENOMEM;
+ }
+
+ rdev = max8997->rdev;
+ max8997->dev = &pdev->dev;
+ max8997->iodev = iodev;
+ max8997->num_regulators = pdata->num_regulators;
+ platform_set_drvdata(pdev, max8997);
+ i2c = max8997->iodev->i2c;
+
+ max8997->buck125_gpioindex = pdata->buck125_default_idx;
+ max8997->buck1_gpiodvs = pdata->buck1_gpiodvs;
+ max8997->buck2_gpiodvs = pdata->buck2_gpiodvs;
+ max8997->buck5_gpiodvs = pdata->buck5_gpiodvs;
+ memcpy(max8997->buck125_gpios, pdata->buck125_gpios, sizeof(int) * 3);
+ max8997->ignore_gpiodvs_side_effect = pdata->ignore_gpiodvs_side_effect;
+
+ for (i = 0; i < 8; i++) {
+ max8997->buck1_vol[i] = ret =
+ max8997_get_voltage_proper_val(
+ &buck1245_voltage_map_desc,
+ pdata->buck1_voltage[i],
+ pdata->buck1_voltage[i] +
+ buck1245_voltage_map_desc.step);
+ if (ret < 0)
+ goto err_alloc;
+
+ max8997->buck2_vol[i] = ret =
+ max8997_get_voltage_proper_val(
+ &buck1245_voltage_map_desc,
+ pdata->buck2_voltage[i],
+ pdata->buck2_voltage[i] +
+ buck1245_voltage_map_desc.step);
+ if (ret < 0)
+ goto err_alloc;
+
+ max8997->buck5_vol[i] = ret =
+ max8997_get_voltage_proper_val(
+ &buck1245_voltage_map_desc,
+ pdata->buck5_voltage[i],
+ pdata->buck5_voltage[i] +
+ buck1245_voltage_map_desc.step);
+ if (ret < 0)
+ goto err_alloc;
+
+ if (max_buck1 < max8997->buck1_vol[i])
+ max_buck1 = max8997->buck1_vol[i];
+ if (max_buck2 < max8997->buck2_vol[i])
+ max_buck2 = max8997->buck2_vol[i];
+ if (max_buck5 < max8997->buck5_vol[i])
+ max_buck5 = max8997->buck5_vol[i];
+ }
+
+ /* For the safety, set max voltage before setting up */
+ for (i = 0; i < 8; i++) {
+ max8997_update_reg(i2c, MAX8997_REG_BUCK1DVS1 + i,
+ max_buck1, 0x3f);
+ max8997_update_reg(i2c, MAX8997_REG_BUCK2DVS1 + i,
+ max_buck2, 0x3f);
+ max8997_update_reg(i2c, MAX8997_REG_BUCK5DVS1 + i,
+ max_buck5, 0x3f);
+ }
+
+ /*
+ * If buck 1, 2, and 5 do not care DVS GPIO settings, ignore them.
+ * If at least one of them cares, set gpios.
+ */
+ if (pdata->buck1_gpiodvs || pdata->buck2_gpiodvs ||
+ pdata->buck5_gpiodvs) {
+ bool gpio1set = false, gpio2set = false;
+
+ if (!gpio_is_valid(pdata->buck125_gpios[0]) ||
+ !gpio_is_valid(pdata->buck125_gpios[1]) ||
+ !gpio_is_valid(pdata->buck125_gpios[2])) {
+ dev_err(&pdev->dev, "GPIO NOT VALID\n");
+ ret = -EINVAL;
+ goto err_alloc;
+ }
+
+ ret = gpio_request(pdata->buck125_gpios[0],
+ "MAX8997 SET1");
+ if (ret == -EBUSY)
+ dev_warn(&pdev->dev, "Duplicated gpio request"
+ " on SET1\n");
+ else if (ret)
+ goto err_alloc;
+ else
+ gpio1set = true;
+
+ ret = gpio_request(pdata->buck125_gpios[1],
+ "MAX8997 SET2");
+ if (ret == -EBUSY)
+ dev_warn(&pdev->dev, "Duplicated gpio request"
+ " on SET2\n");
+ else if (ret) {
+ if (gpio1set)
+ gpio_free(pdata->buck125_gpios[0]);
+ goto err_alloc;
+ } else
+ gpio2set = true;
+
+ ret = gpio_request(pdata->buck125_gpios[2],
+ "MAX8997 SET3");
+ if (ret == -EBUSY)
+ dev_warn(&pdev->dev, "Duplicated gpio request"
+ " on SET3\n");
+ else if (ret) {
+ if (gpio1set)
+ gpio_free(pdata->buck125_gpios[0]);
+ if (gpio2set)
+ gpio_free(pdata->buck125_gpios[1]);
+ goto err_alloc;
+ }
+
+ gpio_direction_output(pdata->buck125_gpios[0],
+ (max8997->buck125_gpioindex >> 2)
+ & 0x1); /* SET1 */
+ gpio_direction_output(pdata->buck125_gpios[1],
+ (max8997->buck125_gpioindex >> 1)
+ & 0x1); /* SET2 */
+ gpio_direction_output(pdata->buck125_gpios[2],
+ (max8997->buck125_gpioindex >> 0)
+ & 0x1); /* SET3 */
+ ret = 0;
+ }
+
+ /* DVS-GPIO disabled */
+ max8997_update_reg(i2c, MAX8997_REG_BUCK1CTRL, (pdata->buck1_gpiodvs) ?
+ (1 << 1) : (0 << 1), 1 << 1);
+ max8997_update_reg(i2c, MAX8997_REG_BUCK2CTRL, (pdata->buck2_gpiodvs) ?
+ (1 << 1) : (0 << 1), 1 << 1);
+ max8997_update_reg(i2c, MAX8997_REG_BUCK5CTRL, (pdata->buck5_gpiodvs) ?
+ (1 << 1) : (0 << 1), 1 << 1);
+
+ /* Initialize all the DVS related BUCK registers */
+ for (i = 0; i < 8; i++) {
+ max8997_update_reg(i2c, MAX8997_REG_BUCK1DVS1 + i,
+ max8997->buck1_vol[i],
+ 0x3f);
+ max8997_update_reg(i2c, MAX8997_REG_BUCK2DVS1 + i,
+ max8997->buck2_vol[i],
+ 0x3f);
+ max8997_update_reg(i2c, MAX8997_REG_BUCK5DVS1 + i,
+ max8997->buck5_vol[i],
+ 0x3f);
+ }
+
+ /* Misc Settings */
+ max8997->ramp_delay = 10; /* set 10mV/us, which is the default */
+ max8997_write_reg(i2c, MAX8997_REG_BUCKRAMP, (0xf << 4) | 0x9);
+
+ for (i = 0; i < pdata->num_regulators; i++) {
+ const struct voltage_map_desc *desc;
+ int id = pdata->regulators[i].id;
+
+ desc = reg_voltage_map[id];
+ if (desc)
+ regulators[id].n_voltages =
+ (desc->max - desc->min) / desc->step + 1;
+ else if (id == MAX8997_ESAFEOUT1 || id == MAX8997_ESAFEOUT2)
+ regulators[id].n_voltages = 4;
+ else if (id == MAX8997_CHARGER_CV)
+ regulators[id].n_voltages = 16;
+
+ rdev[i] = regulator_register(®ulators[id], max8997->dev,
+ pdata->regulators[i].initdata, max8997, NULL);
+ if (IS_ERR(rdev[i])) {
+ ret = PTR_ERR(rdev[i]);
+ dev_err(max8997->dev, "regulator init failed for %d\n",
+ id);
+ rdev[i] = NULL;
+ goto err;
+ }
+ }
+
+ return 0;
+err:
+ for (i = 0; i < max8997->num_regulators; i++)
+ if (rdev[i])
+ regulator_unregister(rdev[i]);
+err_alloc:
+ kfree(max8997->rdev);
+ kfree(max8997);
+
+ return ret;
+}
+
+static int __devexit max8997_pmic_remove(struct platform_device *pdev)
+{
+ struct max8997_data *max8997 = platform_get_drvdata(pdev);
+ struct regulator_dev **rdev = max8997->rdev;
+ int i;
+
+ for (i = 0; i < max8997->num_regulators; i++)
+ if (rdev[i])
+ regulator_unregister(rdev[i]);
+
+ kfree(max8997->rdev);
+ kfree(max8997);
+
+ return 0;
+}
+
+static const struct platform_device_id max8997_pmic_id[] = {
+ { "max8997-pmic", 0},
+ { },
+};
+MODULE_DEVICE_TABLE(platform, max8997_pmic_id);
+
+static struct platform_driver max8997_pmic_driver = {
+ .driver = {
+ .name = "max8997-pmic",
+ .owner = THIS_MODULE,
+ },
+ .probe = max8997_pmic_probe,
+ .remove = __devexit_p(max8997_pmic_remove),
+ .id_table = max8997_pmic_id,
+};
+
+static int __init max8997_pmic_init(void)
+{
+ return platform_driver_register(&max8997_pmic_driver);
+}
+subsys_initcall(max8997_pmic_init);
+
+static void __exit max8997_pmic_cleanup(void)
+{
+ platform_driver_unregister(&max8997_pmic_driver);
+}
+module_exit(max8997_pmic_cleanup);
+
+MODULE_DESCRIPTION("MAXIM 8997/8966 Regulator Driver");
+MODULE_AUTHOR("MyungJoo Ham <myungjoo.ham@samsung.com>");
+MODULE_LICENSE("GPL");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/max8998.c b/ap/os/linux/linux-3.4.x/drivers/regulator/max8998.c
new file mode 100644
index 0000000..1300383
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/max8998.c
@@ -0,0 +1,914 @@
+/*
+ * max8998.c - Voltage regulator driver for the Maxim 8998
+ *
+ * Copyright (C) 2009-2010 Samsung Electronics
+ * Kyungmin Park <kyungmin.park@samsung.com>
+ * Marek Szyprowski <m.szyprowski@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/mfd/max8998.h>
+#include <linux/mfd/max8998-private.h>
+
+struct max8998_data {
+ struct device *dev;
+ struct max8998_dev *iodev;
+ int num_regulators;
+ struct regulator_dev **rdev;
+ u8 buck1_vol[4]; /* voltages for selection */
+ u8 buck2_vol[2];
+ unsigned int buck1_idx; /* index to last changed voltage */
+ /* value in a set */
+ unsigned int buck2_idx;
+};
+
+struct voltage_map_desc {
+ int min;
+ int max;
+ int step;
+};
+
+/* Voltage maps */
+static const struct voltage_map_desc ldo23_voltage_map_desc = {
+ .min = 800, .step = 50, .max = 1300,
+};
+static const struct voltage_map_desc ldo456711_voltage_map_desc = {
+ .min = 1600, .step = 100, .max = 3600,
+};
+static const struct voltage_map_desc ldo8_voltage_map_desc = {
+ .min = 3000, .step = 100, .max = 3600,
+};
+static const struct voltage_map_desc ldo9_voltage_map_desc = {
+ .min = 2800, .step = 100, .max = 3100,
+};
+static const struct voltage_map_desc ldo10_voltage_map_desc = {
+ .min = 950, .step = 50, .max = 1300,
+};
+static const struct voltage_map_desc ldo1213_voltage_map_desc = {
+ .min = 800, .step = 100, .max = 3300,
+};
+static const struct voltage_map_desc ldo1415_voltage_map_desc = {
+ .min = 1200, .step = 100, .max = 3300,
+};
+static const struct voltage_map_desc ldo1617_voltage_map_desc = {
+ .min = 1600, .step = 100, .max = 3600,
+};
+static const struct voltage_map_desc buck12_voltage_map_desc = {
+ .min = 750, .step = 25, .max = 1525,
+};
+static const struct voltage_map_desc buck3_voltage_map_desc = {
+ .min = 1600, .step = 100, .max = 3600,
+};
+static const struct voltage_map_desc buck4_voltage_map_desc = {
+ .min = 800, .step = 100, .max = 2300,
+};
+
+static const struct voltage_map_desc *ldo_voltage_map[] = {
+ NULL,
+ NULL,
+ &ldo23_voltage_map_desc, /* LDO2 */
+ &ldo23_voltage_map_desc, /* LDO3 */
+ &ldo456711_voltage_map_desc, /* LDO4 */
+ &ldo456711_voltage_map_desc, /* LDO5 */
+ &ldo456711_voltage_map_desc, /* LDO6 */
+ &ldo456711_voltage_map_desc, /* LDO7 */
+ &ldo8_voltage_map_desc, /* LDO8 */
+ &ldo9_voltage_map_desc, /* LDO9 */
+ &ldo10_voltage_map_desc, /* LDO10 */
+ &ldo456711_voltage_map_desc, /* LDO11 */
+ &ldo1213_voltage_map_desc, /* LDO12 */
+ &ldo1213_voltage_map_desc, /* LDO13 */
+ &ldo1415_voltage_map_desc, /* LDO14 */
+ &ldo1415_voltage_map_desc, /* LDO15 */
+ &ldo1617_voltage_map_desc, /* LDO16 */
+ &ldo1617_voltage_map_desc, /* LDO17 */
+ &buck12_voltage_map_desc, /* BUCK1 */
+ &buck12_voltage_map_desc, /* BUCK2 */
+ &buck3_voltage_map_desc, /* BUCK3 */
+ &buck4_voltage_map_desc, /* BUCK4 */
+};
+
+static int max8998_list_voltage(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ const struct voltage_map_desc *desc;
+ int ldo = rdev_get_id(rdev);
+ int val;
+
+ if (ldo >= ARRAY_SIZE(ldo_voltage_map))
+ return -EINVAL;
+
+ desc = ldo_voltage_map[ldo];
+ if (desc == NULL)
+ return -EINVAL;
+
+ val = desc->min + desc->step * selector;
+ if (val > desc->max)
+ return -EINVAL;
+
+ return val * 1000;
+}
+
+static int max8998_get_enable_register(struct regulator_dev *rdev,
+ int *reg, int *shift)
+{
+ int ldo = rdev_get_id(rdev);
+
+ switch (ldo) {
+ case MAX8998_LDO2 ... MAX8998_LDO5:
+ *reg = MAX8998_REG_ONOFF1;
+ *shift = 3 - (ldo - MAX8998_LDO2);
+ break;
+ case MAX8998_LDO6 ... MAX8998_LDO13:
+ *reg = MAX8998_REG_ONOFF2;
+ *shift = 7 - (ldo - MAX8998_LDO6);
+ break;
+ case MAX8998_LDO14 ... MAX8998_LDO17:
+ *reg = MAX8998_REG_ONOFF3;
+ *shift = 7 - (ldo - MAX8998_LDO14);
+ break;
+ case MAX8998_BUCK1 ... MAX8998_BUCK4:
+ *reg = MAX8998_REG_ONOFF1;
+ *shift = 7 - (ldo - MAX8998_BUCK1);
+ break;
+ case MAX8998_EN32KHZ_AP ... MAX8998_ENVICHG:
+ *reg = MAX8998_REG_ONOFF4;
+ *shift = 7 - (ldo - MAX8998_EN32KHZ_AP);
+ break;
+ case MAX8998_ESAFEOUT1 ... MAX8998_ESAFEOUT2:
+ *reg = MAX8998_REG_CHGR2;
+ *shift = 7 - (ldo - MAX8998_ESAFEOUT1);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int max8998_ldo_is_enabled(struct regulator_dev *rdev)
+{
+ struct max8998_data *max8998 = rdev_get_drvdata(rdev);
+ struct i2c_client *i2c = max8998->iodev->i2c;
+ int ret, reg, shift = 8;
+ u8 val;
+
+ ret = max8998_get_enable_register(rdev, ®, &shift);
+ if (ret)
+ return ret;
+
+ ret = max8998_read_reg(i2c, reg, &val);
+ if (ret)
+ return ret;
+
+ return val & (1 << shift);
+}
+
+static int max8998_ldo_enable(struct regulator_dev *rdev)
+{
+ struct max8998_data *max8998 = rdev_get_drvdata(rdev);
+ struct i2c_client *i2c = max8998->iodev->i2c;
+ int reg, shift = 8, ret;
+
+ ret = max8998_get_enable_register(rdev, ®, &shift);
+ if (ret)
+ return ret;
+
+ return max8998_update_reg(i2c, reg, 1<<shift, 1<<shift);
+}
+
+static int max8998_ldo_disable(struct regulator_dev *rdev)
+{
+ struct max8998_data *max8998 = rdev_get_drvdata(rdev);
+ struct i2c_client *i2c = max8998->iodev->i2c;
+ int reg, shift = 8, ret;
+
+ ret = max8998_get_enable_register(rdev, ®, &shift);
+ if (ret)
+ return ret;
+
+ return max8998_update_reg(i2c, reg, 0, 1<<shift);
+}
+
+static int max8998_get_voltage_register(struct regulator_dev *rdev,
+ int *_reg, int *_shift, int *_mask)
+{
+ int ldo = rdev_get_id(rdev);
+ struct max8998_data *max8998 = rdev_get_drvdata(rdev);
+ int reg, shift = 0, mask = 0xff;
+
+ switch (ldo) {
+ case MAX8998_LDO2 ... MAX8998_LDO3:
+ reg = MAX8998_REG_LDO2_LDO3;
+ mask = 0xf;
+ if (ldo == MAX8998_LDO2)
+ shift = 4;
+ else
+ shift = 0;
+ break;
+ case MAX8998_LDO4 ... MAX8998_LDO7:
+ reg = MAX8998_REG_LDO4 + (ldo - MAX8998_LDO4);
+ break;
+ case MAX8998_LDO8 ... MAX8998_LDO9:
+ reg = MAX8998_REG_LDO8_LDO9;
+ mask = 0xf;
+ if (ldo == MAX8998_LDO8)
+ shift = 4;
+ else
+ shift = 0;
+ break;
+ case MAX8998_LDO10 ... MAX8998_LDO11:
+ reg = MAX8998_REG_LDO10_LDO11;
+ if (ldo == MAX8998_LDO10) {
+ shift = 5;
+ mask = 0x7;
+ } else {
+ shift = 0;
+ mask = 0x1f;
+ }
+ break;
+ case MAX8998_LDO12 ... MAX8998_LDO17:
+ reg = MAX8998_REG_LDO12 + (ldo - MAX8998_LDO12);
+ break;
+ case MAX8998_BUCK1:
+ reg = MAX8998_REG_BUCK1_VOLTAGE1 + max8998->buck1_idx;
+ break;
+ case MAX8998_BUCK2:
+ reg = MAX8998_REG_BUCK2_VOLTAGE1 + max8998->buck2_idx;
+ break;
+ case MAX8998_BUCK3:
+ reg = MAX8998_REG_BUCK3;
+ break;
+ case MAX8998_BUCK4:
+ reg = MAX8998_REG_BUCK4;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ *_reg = reg;
+ *_shift = shift;
+ *_mask = mask;
+
+ return 0;
+}
+
+static int max8998_get_voltage(struct regulator_dev *rdev)
+{
+ struct max8998_data *max8998 = rdev_get_drvdata(rdev);
+ struct i2c_client *i2c = max8998->iodev->i2c;
+ int reg, shift = 0, mask, ret;
+ u8 val;
+
+ ret = max8998_get_voltage_register(rdev, ®, &shift, &mask);
+ if (ret)
+ return ret;
+
+ ret = max8998_read_reg(i2c, reg, &val);
+ if (ret)
+ return ret;
+
+ val >>= shift;
+ val &= mask;
+
+ return max8998_list_voltage(rdev, val);
+}
+
+static int max8998_set_voltage_ldo(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct max8998_data *max8998 = rdev_get_drvdata(rdev);
+ struct i2c_client *i2c = max8998->iodev->i2c;
+ int min_vol = min_uV / 1000, max_vol = max_uV / 1000;
+ const struct voltage_map_desc *desc;
+ int ldo = rdev_get_id(rdev);
+ int reg, shift = 0, mask, ret;
+ int i = 0;
+
+ if (ldo >= ARRAY_SIZE(ldo_voltage_map))
+ return -EINVAL;
+
+ desc = ldo_voltage_map[ldo];
+ if (desc == NULL)
+ return -EINVAL;
+
+ if (max_vol < desc->min || min_vol > desc->max)
+ return -EINVAL;
+
+ while (desc->min + desc->step*i < min_vol &&
+ desc->min + desc->step*i < desc->max)
+ i++;
+
+ if (desc->min + desc->step*i > max_vol)
+ return -EINVAL;
+
+ *selector = i;
+
+ ret = max8998_get_voltage_register(rdev, ®, &shift, &mask);
+ if (ret)
+ return ret;
+
+ ret = max8998_update_reg(i2c, reg, i<<shift, mask<<shift);
+
+ return ret;
+}
+
+static inline void buck1_gpio_set(int gpio1, int gpio2, int v)
+{
+ gpio_set_value(gpio1, v & 0x1);
+ gpio_set_value(gpio2, (v >> 1) & 0x1);
+}
+
+static inline void buck2_gpio_set(int gpio, int v)
+{
+ gpio_set_value(gpio, v & 0x1);
+}
+
+static int max8998_set_voltage_buck(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct max8998_data *max8998 = rdev_get_drvdata(rdev);
+ struct max8998_platform_data *pdata =
+ dev_get_platdata(max8998->iodev->dev);
+ struct i2c_client *i2c = max8998->iodev->i2c;
+ int min_vol = min_uV / 1000, max_vol = max_uV / 1000;
+ const struct voltage_map_desc *desc;
+ int buck = rdev_get_id(rdev);
+ int reg, shift = 0, mask, ret;
+ int difference = 0, i = 0, j = 0, previous_vol = 0;
+ u8 val = 0;
+ static u8 buck1_last_val;
+
+ if (buck >= ARRAY_SIZE(ldo_voltage_map))
+ return -EINVAL;
+
+ desc = ldo_voltage_map[buck];
+
+ if (desc == NULL)
+ return -EINVAL;
+
+ if (max_vol < desc->min || min_vol > desc->max)
+ return -EINVAL;
+
+ while (desc->min + desc->step*i < min_vol &&
+ desc->min + desc->step*i < desc->max)
+ i++;
+
+ if (desc->min + desc->step*i > max_vol)
+ return -EINVAL;
+
+ *selector = i;
+
+ ret = max8998_get_voltage_register(rdev, ®, &shift, &mask);
+ if (ret)
+ return ret;
+
+ previous_vol = max8998_get_voltage(rdev);
+
+ /* Check if voltage needs to be changed */
+ /* if previous_voltage equal new voltage, return */
+ if (previous_vol == max8998_list_voltage(rdev, i)) {
+ dev_dbg(max8998->dev, "No voltage change, old:%d, new:%d\n",
+ previous_vol, max8998_list_voltage(rdev, i));
+ return ret;
+ }
+
+ switch (buck) {
+ case MAX8998_BUCK1:
+ dev_dbg(max8998->dev,
+ "BUCK1, i:%d, buck1_vol1:%d, buck1_vol2:%d\n"
+ "buck1_vol3:%d, buck1_vol4:%d\n",
+ i, max8998->buck1_vol[0], max8998->buck1_vol[1],
+ max8998->buck1_vol[2], max8998->buck1_vol[3]);
+
+ if (gpio_is_valid(pdata->buck1_set1) &&
+ gpio_is_valid(pdata->buck1_set2)) {
+
+ /* check if requested voltage */
+ /* value is already defined */
+ for (j = 0; j < ARRAY_SIZE(max8998->buck1_vol); j++) {
+ if (max8998->buck1_vol[j] == i) {
+ max8998->buck1_idx = j;
+ buck1_gpio_set(pdata->buck1_set1,
+ pdata->buck1_set2, j);
+ goto buck1_exit;
+ }
+ }
+
+ if (pdata->buck_voltage_lock)
+ return -EINVAL;
+
+ /* no predefine regulator found */
+ max8998->buck1_idx = (buck1_last_val % 2) + 2;
+ dev_dbg(max8998->dev, "max8998->buck1_idx:%d\n",
+ max8998->buck1_idx);
+ max8998->buck1_vol[max8998->buck1_idx] = i;
+ ret = max8998_get_voltage_register(rdev, ®,
+ &shift,
+ &mask);
+ ret = max8998_write_reg(i2c, reg, i);
+ buck1_gpio_set(pdata->buck1_set1,
+ pdata->buck1_set2, max8998->buck1_idx);
+ buck1_last_val++;
+buck1_exit:
+ dev_dbg(max8998->dev, "%s: SET1:%d, SET2:%d\n",
+ i2c->name, gpio_get_value(pdata->buck1_set1),
+ gpio_get_value(pdata->buck1_set2));
+ break;
+ } else {
+ ret = max8998_write_reg(i2c, reg, i);
+ }
+ break;
+
+ case MAX8998_BUCK2:
+ dev_dbg(max8998->dev,
+ "BUCK2, i:%d buck2_vol1:%d, buck2_vol2:%d\n"
+ , i, max8998->buck2_vol[0], max8998->buck2_vol[1]);
+ if (gpio_is_valid(pdata->buck2_set3)) {
+
+ /* check if requested voltage */
+ /* value is already defined */
+ for (j = 0; j < ARRAY_SIZE(max8998->buck2_vol); j++) {
+ if (max8998->buck2_vol[j] == i) {
+ max8998->buck2_idx = j;
+ buck2_gpio_set(pdata->buck2_set3, j);
+ goto buck2_exit;
+ }
+ }
+
+ if (pdata->buck_voltage_lock)
+ return -EINVAL;
+
+ max8998_get_voltage_register(rdev,
+ ®, &shift, &mask);
+ ret = max8998_write_reg(i2c, reg, i);
+ max8998->buck2_vol[max8998->buck2_idx] = i;
+ buck2_gpio_set(pdata->buck2_set3, max8998->buck2_idx);
+buck2_exit:
+ dev_dbg(max8998->dev, "%s: SET3:%d\n", i2c->name,
+ gpio_get_value(pdata->buck2_set3));
+ } else {
+ ret = max8998_write_reg(i2c, reg, i);
+ }
+ break;
+
+ case MAX8998_BUCK3:
+ case MAX8998_BUCK4:
+ ret = max8998_update_reg(i2c, reg, i<<shift, mask<<shift);
+ break;
+ }
+
+ /* Voltage stabilization */
+ max8998_read_reg(i2c, MAX8998_REG_ONOFF4, &val);
+
+ /* lp3974 hasn't got ENRAMP bit - ramp is assumed as true */
+ /* MAX8998 has ENRAMP bit implemented, so test it*/
+ if (max8998->iodev->type == TYPE_MAX8998 && !(val & MAX8998_ENRAMP))
+ return ret;
+
+ difference = desc->min + desc->step*i - previous_vol/1000;
+ if (difference > 0)
+ udelay(DIV_ROUND_UP(difference, (val & 0x0f) + 1));
+
+ return ret;
+}
+
+static struct regulator_ops max8998_ldo_ops = {
+ .list_voltage = max8998_list_voltage,
+ .is_enabled = max8998_ldo_is_enabled,
+ .enable = max8998_ldo_enable,
+ .disable = max8998_ldo_disable,
+ .get_voltage = max8998_get_voltage,
+ .set_voltage = max8998_set_voltage_ldo,
+ .set_suspend_enable = max8998_ldo_enable,
+ .set_suspend_disable = max8998_ldo_disable,
+};
+
+static struct regulator_ops max8998_buck_ops = {
+ .list_voltage = max8998_list_voltage,
+ .is_enabled = max8998_ldo_is_enabled,
+ .enable = max8998_ldo_enable,
+ .disable = max8998_ldo_disable,
+ .get_voltage = max8998_get_voltage,
+ .set_voltage = max8998_set_voltage_buck,
+ .set_suspend_enable = max8998_ldo_enable,
+ .set_suspend_disable = max8998_ldo_disable,
+};
+
+static struct regulator_ops max8998_others_ops = {
+ .is_enabled = max8998_ldo_is_enabled,
+ .enable = max8998_ldo_enable,
+ .disable = max8998_ldo_disable,
+ .set_suspend_enable = max8998_ldo_enable,
+ .set_suspend_disable = max8998_ldo_disable,
+};
+
+static struct regulator_desc regulators[] = {
+ {
+ .name = "LDO2",
+ .id = MAX8998_LDO2,
+ .ops = &max8998_ldo_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "LDO3",
+ .id = MAX8998_LDO3,
+ .ops = &max8998_ldo_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "LDO4",
+ .id = MAX8998_LDO4,
+ .ops = &max8998_ldo_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "LDO5",
+ .id = MAX8998_LDO5,
+ .ops = &max8998_ldo_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "LDO6",
+ .id = MAX8998_LDO6,
+ .ops = &max8998_ldo_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "LDO7",
+ .id = MAX8998_LDO7,
+ .ops = &max8998_ldo_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "LDO8",
+ .id = MAX8998_LDO8,
+ .ops = &max8998_ldo_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "LDO9",
+ .id = MAX8998_LDO9,
+ .ops = &max8998_ldo_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "LDO10",
+ .id = MAX8998_LDO10,
+ .ops = &max8998_ldo_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "LDO11",
+ .id = MAX8998_LDO11,
+ .ops = &max8998_ldo_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "LDO12",
+ .id = MAX8998_LDO12,
+ .ops = &max8998_ldo_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "LDO13",
+ .id = MAX8998_LDO13,
+ .ops = &max8998_ldo_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "LDO14",
+ .id = MAX8998_LDO14,
+ .ops = &max8998_ldo_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "LDO15",
+ .id = MAX8998_LDO15,
+ .ops = &max8998_ldo_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "LDO16",
+ .id = MAX8998_LDO16,
+ .ops = &max8998_ldo_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "LDO17",
+ .id = MAX8998_LDO17,
+ .ops = &max8998_ldo_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "BUCK1",
+ .id = MAX8998_BUCK1,
+ .ops = &max8998_buck_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "BUCK2",
+ .id = MAX8998_BUCK2,
+ .ops = &max8998_buck_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "BUCK3",
+ .id = MAX8998_BUCK3,
+ .ops = &max8998_buck_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "BUCK4",
+ .id = MAX8998_BUCK4,
+ .ops = &max8998_buck_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "EN32KHz AP",
+ .id = MAX8998_EN32KHZ_AP,
+ .ops = &max8998_others_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "EN32KHz CP",
+ .id = MAX8998_EN32KHZ_CP,
+ .ops = &max8998_others_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "ENVICHG",
+ .id = MAX8998_ENVICHG,
+ .ops = &max8998_others_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "ESAFEOUT1",
+ .id = MAX8998_ESAFEOUT1,
+ .ops = &max8998_others_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }, {
+ .name = "ESAFEOUT2",
+ .id = MAX8998_ESAFEOUT2,
+ .ops = &max8998_others_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ }
+};
+
+static __devinit int max8998_pmic_probe(struct platform_device *pdev)
+{
+ struct max8998_dev *iodev = dev_get_drvdata(pdev->dev.parent);
+ struct max8998_platform_data *pdata = dev_get_platdata(iodev->dev);
+ struct regulator_dev **rdev;
+ struct max8998_data *max8998;
+ struct i2c_client *i2c;
+ int i, ret, size;
+
+ if (!pdata) {
+ dev_err(pdev->dev.parent, "No platform init data supplied\n");
+ return -ENODEV;
+ }
+
+ max8998 = kzalloc(sizeof(struct max8998_data), GFP_KERNEL);
+ if (!max8998)
+ return -ENOMEM;
+
+ size = sizeof(struct regulator_dev *) * pdata->num_regulators;
+ max8998->rdev = kzalloc(size, GFP_KERNEL);
+ if (!max8998->rdev) {
+ kfree(max8998);
+ return -ENOMEM;
+ }
+
+ rdev = max8998->rdev;
+ max8998->dev = &pdev->dev;
+ max8998->iodev = iodev;
+ max8998->num_regulators = pdata->num_regulators;
+ platform_set_drvdata(pdev, max8998);
+ i2c = max8998->iodev->i2c;
+
+ max8998->buck1_idx = pdata->buck1_default_idx;
+ max8998->buck2_idx = pdata->buck2_default_idx;
+
+ /* NOTE: */
+ /* For unused GPIO NOT marked as -1 (thereof equal to 0) WARN_ON */
+ /* will be displayed */
+
+ /* Check if MAX8998 voltage selection GPIOs are defined */
+ if (gpio_is_valid(pdata->buck1_set1) &&
+ gpio_is_valid(pdata->buck1_set2)) {
+ /* Check if SET1 is not equal to 0 */
+ if (!pdata->buck1_set1) {
+ printk(KERN_ERR "MAX8998 SET1 GPIO defined as 0 !\n");
+ WARN_ON(!pdata->buck1_set1);
+ ret = -EIO;
+ goto err_free_mem;
+ }
+ /* Check if SET2 is not equal to 0 */
+ if (!pdata->buck1_set2) {
+ printk(KERN_ERR "MAX8998 SET2 GPIO defined as 0 !\n");
+ WARN_ON(!pdata->buck1_set2);
+ ret = -EIO;
+ goto err_free_mem;
+ }
+
+ gpio_request(pdata->buck1_set1, "MAX8998 BUCK1_SET1");
+ gpio_direction_output(pdata->buck1_set1,
+ max8998->buck1_idx & 0x1);
+
+
+ gpio_request(pdata->buck1_set2, "MAX8998 BUCK1_SET2");
+ gpio_direction_output(pdata->buck1_set2,
+ (max8998->buck1_idx >> 1) & 0x1);
+ /* Set predefined value for BUCK1 register 1 */
+ i = 0;
+ while (buck12_voltage_map_desc.min +
+ buck12_voltage_map_desc.step*i
+ < (pdata->buck1_voltage1 / 1000))
+ i++;
+ max8998->buck1_vol[0] = i;
+ ret = max8998_write_reg(i2c, MAX8998_REG_BUCK1_VOLTAGE1, i);
+ if (ret)
+ goto err_free_mem;
+
+ /* Set predefined value for BUCK1 register 2 */
+ i = 0;
+ while (buck12_voltage_map_desc.min +
+ buck12_voltage_map_desc.step*i
+ < (pdata->buck1_voltage2 / 1000))
+ i++;
+
+ max8998->buck1_vol[1] = i;
+ ret = max8998_write_reg(i2c, MAX8998_REG_BUCK1_VOLTAGE2, i);
+ if (ret)
+ goto err_free_mem;
+
+ /* Set predefined value for BUCK1 register 3 */
+ i = 0;
+ while (buck12_voltage_map_desc.min +
+ buck12_voltage_map_desc.step*i
+ < (pdata->buck1_voltage3 / 1000))
+ i++;
+
+ max8998->buck1_vol[2] = i;
+ ret = max8998_write_reg(i2c, MAX8998_REG_BUCK1_VOLTAGE3, i);
+ if (ret)
+ goto err_free_mem;
+
+ /* Set predefined value for BUCK1 register 4 */
+ i = 0;
+ while (buck12_voltage_map_desc.min +
+ buck12_voltage_map_desc.step*i
+ < (pdata->buck1_voltage4 / 1000))
+ i++;
+
+ max8998->buck1_vol[3] = i;
+ ret = max8998_write_reg(i2c, MAX8998_REG_BUCK1_VOLTAGE4, i);
+ if (ret)
+ goto err_free_mem;
+
+ }
+
+ if (gpio_is_valid(pdata->buck2_set3)) {
+ /* Check if SET3 is not equal to 0 */
+ if (!pdata->buck2_set3) {
+ printk(KERN_ERR "MAX8998 SET3 GPIO defined as 0 !\n");
+ WARN_ON(!pdata->buck2_set3);
+ ret = -EIO;
+ goto err_free_mem;
+ }
+ gpio_request(pdata->buck2_set3, "MAX8998 BUCK2_SET3");
+ gpio_direction_output(pdata->buck2_set3,
+ max8998->buck2_idx & 0x1);
+
+ /* BUCK2 register 1 */
+ i = 0;
+ while (buck12_voltage_map_desc.min +
+ buck12_voltage_map_desc.step*i
+ < (pdata->buck2_voltage1 / 1000))
+ i++;
+ max8998->buck2_vol[0] = i;
+ ret = max8998_write_reg(i2c, MAX8998_REG_BUCK2_VOLTAGE1, i);
+ if (ret)
+ goto err_free_mem;
+
+ /* BUCK2 register 2 */
+ i = 0;
+ while (buck12_voltage_map_desc.min +
+ buck12_voltage_map_desc.step*i
+ < (pdata->buck2_voltage2 / 1000))
+ i++;
+ max8998->buck2_vol[1] = i;
+ ret = max8998_write_reg(i2c, MAX8998_REG_BUCK2_VOLTAGE2, i);
+ if (ret)
+ goto err_free_mem;
+ }
+
+ for (i = 0; i < pdata->num_regulators; i++) {
+ const struct voltage_map_desc *desc;
+ int id = pdata->regulators[i].id;
+ int index = id - MAX8998_LDO2;
+
+ desc = ldo_voltage_map[id];
+ if (desc && regulators[index].ops != &max8998_others_ops) {
+ int count = (desc->max - desc->min) / desc->step + 1;
+ regulators[index].n_voltages = count;
+ }
+ rdev[i] = regulator_register(®ulators[index], max8998->dev,
+ pdata->regulators[i].initdata, max8998, NULL);
+ if (IS_ERR(rdev[i])) {
+ ret = PTR_ERR(rdev[i]);
+ dev_err(max8998->dev, "regulator init failed\n");
+ rdev[i] = NULL;
+ goto err;
+ }
+ }
+
+
+ return 0;
+err:
+ for (i = 0; i < max8998->num_regulators; i++)
+ if (rdev[i])
+ regulator_unregister(rdev[i]);
+
+err_free_mem:
+ kfree(max8998->rdev);
+ kfree(max8998);
+
+ return ret;
+}
+
+static int __devexit max8998_pmic_remove(struct platform_device *pdev)
+{
+ struct max8998_data *max8998 = platform_get_drvdata(pdev);
+ struct regulator_dev **rdev = max8998->rdev;
+ int i;
+
+ for (i = 0; i < max8998->num_regulators; i++)
+ if (rdev[i])
+ regulator_unregister(rdev[i]);
+
+ kfree(max8998->rdev);
+ kfree(max8998);
+
+ return 0;
+}
+
+static const struct platform_device_id max8998_pmic_id[] = {
+ { "max8998-pmic", TYPE_MAX8998 },
+ { "lp3974-pmic", TYPE_LP3974 },
+ { }
+};
+MODULE_DEVICE_TABLE(platform, max8998_pmic_id);
+
+static struct platform_driver max8998_pmic_driver = {
+ .driver = {
+ .name = "max8998-pmic",
+ .owner = THIS_MODULE,
+ },
+ .probe = max8998_pmic_probe,
+ .remove = __devexit_p(max8998_pmic_remove),
+ .id_table = max8998_pmic_id,
+};
+
+static int __init max8998_pmic_init(void)
+{
+ return platform_driver_register(&max8998_pmic_driver);
+}
+subsys_initcall(max8998_pmic_init);
+
+static void __exit max8998_pmic_cleanup(void)
+{
+ platform_driver_unregister(&max8998_pmic_driver);
+}
+module_exit(max8998_pmic_cleanup);
+
+MODULE_DESCRIPTION("MAXIM 8998 voltage regulator driver");
+MODULE_AUTHOR("Kyungmin Park <kyungmin.park@samsung.com>");
+MODULE_LICENSE("GPL");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/mc13783-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/mc13783-regulator.c
new file mode 100644
index 0000000..6c0face
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/mc13783-regulator.c
@@ -0,0 +1,422 @@
+/*
+ * Regulator Driver for Freescale MC13783 PMIC
+ *
+ * Copyright 2010 Yong Shen <yong.shen@linaro.org>
+ * Copyright (C) 2008 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
+ * Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/mfd/mc13783.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/driver.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include "mc13xxx.h"
+
+#define MC13783_REG_SWITCHERS5 29
+#define MC13783_REG_SWITCHERS5_SW3EN (1 << 20)
+#define MC13783_REG_SWITCHERS5_SW3VSEL 18
+#define MC13783_REG_SWITCHERS5_SW3VSEL_M (3 << 18)
+
+#define MC13783_REG_REGULATORSETTING0 30
+#define MC13783_REG_REGULATORSETTING0_VIOLOVSEL 2
+#define MC13783_REG_REGULATORSETTING0_VDIGVSEL 4
+#define MC13783_REG_REGULATORSETTING0_VGENVSEL 6
+#define MC13783_REG_REGULATORSETTING0_VRFDIGVSEL 9
+#define MC13783_REG_REGULATORSETTING0_VRFREFVSEL 11
+#define MC13783_REG_REGULATORSETTING0_VRFCPVSEL 13
+#define MC13783_REG_REGULATORSETTING0_VSIMVSEL 14
+#define MC13783_REG_REGULATORSETTING0_VESIMVSEL 15
+#define MC13783_REG_REGULATORSETTING0_VCAMVSEL 16
+
+#define MC13783_REG_REGULATORSETTING0_VIOLOVSEL_M (3 << 2)
+#define MC13783_REG_REGULATORSETTING0_VDIGVSEL_M (3 << 4)
+#define MC13783_REG_REGULATORSETTING0_VGENVSEL_M (7 << 6)
+#define MC13783_REG_REGULATORSETTING0_VRFDIGVSEL_M (3 << 9)
+#define MC13783_REG_REGULATORSETTING0_VRFREFVSEL_M (3 << 11)
+#define MC13783_REG_REGULATORSETTING0_VRFCPVSEL_M (1 << 13)
+#define MC13783_REG_REGULATORSETTING0_VSIMVSEL_M (1 << 14)
+#define MC13783_REG_REGULATORSETTING0_VESIMVSEL_M (1 << 15)
+#define MC13783_REG_REGULATORSETTING0_VCAMVSEL_M (7 << 16)
+
+#define MC13783_REG_REGULATORSETTING1 31
+#define MC13783_REG_REGULATORSETTING1_VVIBVSEL 0
+#define MC13783_REG_REGULATORSETTING1_VRF1VSEL 2
+#define MC13783_REG_REGULATORSETTING1_VRF2VSEL 4
+#define MC13783_REG_REGULATORSETTING1_VMMC1VSEL 6
+#define MC13783_REG_REGULATORSETTING1_VMMC2VSEL 9
+
+#define MC13783_REG_REGULATORSETTING1_VVIBVSEL_M (3 << 0)
+#define MC13783_REG_REGULATORSETTING1_VRF1VSEL_M (3 << 2)
+#define MC13783_REG_REGULATORSETTING1_VRF2VSEL_M (3 << 4)
+#define MC13783_REG_REGULATORSETTING1_VMMC1VSEL_M (7 << 6)
+#define MC13783_REG_REGULATORSETTING1_VMMC2VSEL_M (7 << 9)
+
+#define MC13783_REG_REGULATORMODE0 32
+#define MC13783_REG_REGULATORMODE0_VAUDIOEN (1 << 0)
+#define MC13783_REG_REGULATORMODE0_VIOHIEN (1 << 3)
+#define MC13783_REG_REGULATORMODE0_VIOLOEN (1 << 6)
+#define MC13783_REG_REGULATORMODE0_VDIGEN (1 << 9)
+#define MC13783_REG_REGULATORMODE0_VGENEN (1 << 12)
+#define MC13783_REG_REGULATORMODE0_VRFDIGEN (1 << 15)
+#define MC13783_REG_REGULATORMODE0_VRFREFEN (1 << 18)
+#define MC13783_REG_REGULATORMODE0_VRFCPEN (1 << 21)
+
+#define MC13783_REG_REGULATORMODE1 33
+#define MC13783_REG_REGULATORMODE1_VSIMEN (1 << 0)
+#define MC13783_REG_REGULATORMODE1_VESIMEN (1 << 3)
+#define MC13783_REG_REGULATORMODE1_VCAMEN (1 << 6)
+#define MC13783_REG_REGULATORMODE1_VRFBGEN (1 << 9)
+#define MC13783_REG_REGULATORMODE1_VVIBEN (1 << 11)
+#define MC13783_REG_REGULATORMODE1_VRF1EN (1 << 12)
+#define MC13783_REG_REGULATORMODE1_VRF2EN (1 << 15)
+#define MC13783_REG_REGULATORMODE1_VMMC1EN (1 << 18)
+#define MC13783_REG_REGULATORMODE1_VMMC2EN (1 << 21)
+
+#define MC13783_REG_POWERMISC 34
+#define MC13783_REG_POWERMISC_GPO1EN (1 << 6)
+#define MC13783_REG_POWERMISC_GPO2EN (1 << 8)
+#define MC13783_REG_POWERMISC_GPO3EN (1 << 10)
+#define MC13783_REG_POWERMISC_GPO4EN (1 << 12)
+#define MC13783_REG_POWERMISC_PWGT1SPIEN (1 << 15)
+#define MC13783_REG_POWERMISC_PWGT2SPIEN (1 << 16)
+
+#define MC13783_REG_POWERMISC_PWGTSPI_M (3 << 15)
+
+
+/* Voltage Values */
+static const int mc13783_sw3_val[] = {
+ 5000000, 5000000, 5000000, 5500000,
+};
+
+static const int mc13783_vaudio_val[] = {
+ 2775000,
+};
+
+static const int mc13783_viohi_val[] = {
+ 2775000,
+};
+
+static const int mc13783_violo_val[] = {
+ 1200000, 1300000, 1500000, 1800000,
+};
+
+static const int mc13783_vdig_val[] = {
+ 1200000, 1300000, 1500000, 1800000,
+};
+
+static const int mc13783_vgen_val[] = {
+ 1200000, 1300000, 1500000, 1800000,
+ 1100000, 2000000, 2775000, 2400000,
+};
+
+static const int mc13783_vrfdig_val[] = {
+ 1200000, 1500000, 1800000, 1875000,
+};
+
+static const int mc13783_vrfref_val[] = {
+ 2475000, 2600000, 2700000, 2775000,
+};
+
+static const int mc13783_vrfcp_val[] = {
+ 2700000, 2775000,
+};
+
+static const int mc13783_vsim_val[] = {
+ 1800000, 2900000, 3000000,
+};
+
+static const int mc13783_vesim_val[] = {
+ 1800000, 2900000,
+};
+
+static const int mc13783_vcam_val[] = {
+ 1500000, 1800000, 2500000, 2550000,
+ 2600000, 2750000, 2800000, 3000000,
+};
+
+static const int mc13783_vrfbg_val[] = {
+ 1250000,
+};
+
+static const int mc13783_vvib_val[] = {
+ 1300000, 1800000, 2000000, 3000000,
+};
+
+static const int mc13783_vmmc_val[] = {
+ 1600000, 1800000, 2000000, 2600000,
+ 2700000, 2800000, 2900000, 3000000,
+};
+
+static const int mc13783_vrf_val[] = {
+ 1500000, 1875000, 2700000, 2775000,
+};
+
+static const int mc13783_gpo_val[] = {
+ 3100000,
+};
+
+static const int mc13783_pwgtdrv_val[] = {
+ 5500000,
+};
+
+static struct regulator_ops mc13783_gpo_regulator_ops;
+
+#define MC13783_DEFINE(prefix, name, reg, vsel_reg, voltages) \
+ MC13xxx_DEFINE(MC13783_REG_, name, reg, vsel_reg, voltages, \
+ mc13xxx_regulator_ops)
+
+#define MC13783_FIXED_DEFINE(prefix, name, reg, voltages) \
+ MC13xxx_FIXED_DEFINE(MC13783_REG_, name, reg, voltages, \
+ mc13xxx_fixed_regulator_ops)
+
+#define MC13783_GPO_DEFINE(prefix, name, reg, voltages) \
+ MC13xxx_GPO_DEFINE(MC13783_REG_, name, reg, voltages, \
+ mc13783_gpo_regulator_ops)
+
+#define MC13783_DEFINE_SW(_name, _reg, _vsel_reg, _voltages) \
+ MC13783_DEFINE(REG, _name, _reg, _vsel_reg, _voltages)
+#define MC13783_DEFINE_REGU(_name, _reg, _vsel_reg, _voltages) \
+ MC13783_DEFINE(REG, _name, _reg, _vsel_reg, _voltages)
+
+static struct mc13xxx_regulator mc13783_regulators[] = {
+ MC13783_DEFINE_SW(SW3, SWITCHERS5, SWITCHERS5, mc13783_sw3_val),
+
+ MC13783_FIXED_DEFINE(REG, VAUDIO, REGULATORMODE0, mc13783_vaudio_val),
+ MC13783_FIXED_DEFINE(REG, VIOHI, REGULATORMODE0, mc13783_viohi_val),
+ MC13783_DEFINE_REGU(VIOLO, REGULATORMODE0, REGULATORSETTING0, \
+ mc13783_violo_val),
+ MC13783_DEFINE_REGU(VDIG, REGULATORMODE0, REGULATORSETTING0, \
+ mc13783_vdig_val),
+ MC13783_DEFINE_REGU(VGEN, REGULATORMODE0, REGULATORSETTING0, \
+ mc13783_vgen_val),
+ MC13783_DEFINE_REGU(VRFDIG, REGULATORMODE0, REGULATORSETTING0, \
+ mc13783_vrfdig_val),
+ MC13783_DEFINE_REGU(VRFREF, REGULATORMODE0, REGULATORSETTING0, \
+ mc13783_vrfref_val),
+ MC13783_DEFINE_REGU(VRFCP, REGULATORMODE0, REGULATORSETTING0, \
+ mc13783_vrfcp_val),
+ MC13783_DEFINE_REGU(VSIM, REGULATORMODE1, REGULATORSETTING0, \
+ mc13783_vsim_val),
+ MC13783_DEFINE_REGU(VESIM, REGULATORMODE1, REGULATORSETTING0, \
+ mc13783_vesim_val),
+ MC13783_DEFINE_REGU(VCAM, REGULATORMODE1, REGULATORSETTING0, \
+ mc13783_vcam_val),
+ MC13783_FIXED_DEFINE(REG, VRFBG, REGULATORMODE1, mc13783_vrfbg_val),
+ MC13783_DEFINE_REGU(VVIB, REGULATORMODE1, REGULATORSETTING1, \
+ mc13783_vvib_val),
+ MC13783_DEFINE_REGU(VRF1, REGULATORMODE1, REGULATORSETTING1, \
+ mc13783_vrf_val),
+ MC13783_DEFINE_REGU(VRF2, REGULATORMODE1, REGULATORSETTING1, \
+ mc13783_vrf_val),
+ MC13783_DEFINE_REGU(VMMC1, REGULATORMODE1, REGULATORSETTING1, \
+ mc13783_vmmc_val),
+ MC13783_DEFINE_REGU(VMMC2, REGULATORMODE1, REGULATORSETTING1, \
+ mc13783_vmmc_val),
+ MC13783_GPO_DEFINE(REG, GPO1, POWERMISC, mc13783_gpo_val),
+ MC13783_GPO_DEFINE(REG, GPO2, POWERMISC, mc13783_gpo_val),
+ MC13783_GPO_DEFINE(REG, GPO3, POWERMISC, mc13783_gpo_val),
+ MC13783_GPO_DEFINE(REG, GPO4, POWERMISC, mc13783_gpo_val),
+ MC13783_GPO_DEFINE(REG, PWGT1SPI, POWERMISC, mc13783_pwgtdrv_val),
+ MC13783_GPO_DEFINE(REG, PWGT2SPI, POWERMISC, mc13783_pwgtdrv_val),
+};
+
+static int mc13783_powermisc_rmw(struct mc13xxx_regulator_priv *priv, u32 mask,
+ u32 val)
+{
+ struct mc13xxx *mc13783 = priv->mc13xxx;
+ int ret;
+ u32 valread;
+
+ BUG_ON(val & ~mask);
+
+ ret = mc13xxx_reg_read(mc13783, MC13783_REG_POWERMISC, &valread);
+ if (ret)
+ return ret;
+
+ /* Update the stored state for Power Gates. */
+ priv->powermisc_pwgt_state =
+ (priv->powermisc_pwgt_state & ~mask) | val;
+ priv->powermisc_pwgt_state &= MC13783_REG_POWERMISC_PWGTSPI_M;
+
+ /* Construct the new register value */
+ valread = (valread & ~mask) | val;
+ /* Overwrite the PWGTxEN with the stored version */
+ valread = (valread & ~MC13783_REG_POWERMISC_PWGTSPI_M) |
+ priv->powermisc_pwgt_state;
+
+ return mc13xxx_reg_write(mc13783, MC13783_REG_POWERMISC, valread);
+}
+
+static int mc13783_gpo_regulator_enable(struct regulator_dev *rdev)
+{
+ struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
+ struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
+ int id = rdev_get_id(rdev);
+ int ret;
+ u32 en_val = mc13xxx_regulators[id].enable_bit;
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
+
+ /* Power Gate enable value is 0 */
+ if (id == MC13783_REG_PWGT1SPI ||
+ id == MC13783_REG_PWGT2SPI)
+ en_val = 0;
+
+ mc13xxx_lock(priv->mc13xxx);
+ ret = mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
+ en_val);
+ mc13xxx_unlock(priv->mc13xxx);
+
+ return ret;
+}
+
+static int mc13783_gpo_regulator_disable(struct regulator_dev *rdev)
+{
+ struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
+ struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
+ int id = rdev_get_id(rdev);
+ int ret;
+ u32 dis_val = 0;
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
+
+ /* Power Gate disable value is 1 */
+ if (id == MC13783_REG_PWGT1SPI ||
+ id == MC13783_REG_PWGT2SPI)
+ dis_val = mc13xxx_regulators[id].enable_bit;
+
+ mc13xxx_lock(priv->mc13xxx);
+ ret = mc13783_powermisc_rmw(priv, mc13xxx_regulators[id].enable_bit,
+ dis_val);
+ mc13xxx_unlock(priv->mc13xxx);
+
+ return ret;
+}
+
+static int mc13783_gpo_regulator_is_enabled(struct regulator_dev *rdev)
+{
+ struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
+ struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
+ int ret, id = rdev_get_id(rdev);
+ unsigned int val;
+
+ mc13xxx_lock(priv->mc13xxx);
+ ret = mc13xxx_reg_read(priv->mc13xxx, mc13xxx_regulators[id].reg, &val);
+ mc13xxx_unlock(priv->mc13xxx);
+
+ if (ret)
+ return ret;
+
+ /* Power Gates state is stored in powermisc_pwgt_state
+ * where the meaning of bits is negated */
+ val = (val & ~MC13783_REG_POWERMISC_PWGTSPI_M) |
+ (priv->powermisc_pwgt_state ^ MC13783_REG_POWERMISC_PWGTSPI_M);
+
+ return (val & mc13xxx_regulators[id].enable_bit) != 0;
+}
+
+static struct regulator_ops mc13783_gpo_regulator_ops = {
+ .enable = mc13783_gpo_regulator_enable,
+ .disable = mc13783_gpo_regulator_disable,
+ .is_enabled = mc13783_gpo_regulator_is_enabled,
+ .list_voltage = mc13xxx_regulator_list_voltage,
+ .set_voltage = mc13xxx_fixed_regulator_set_voltage,
+ .get_voltage = mc13xxx_fixed_regulator_get_voltage,
+};
+
+static int __devinit mc13783_regulator_probe(struct platform_device *pdev)
+{
+ struct mc13xxx_regulator_priv *priv;
+ struct mc13xxx *mc13783 = dev_get_drvdata(pdev->dev.parent);
+ struct mc13xxx_regulator_platform_data *pdata =
+ dev_get_platdata(&pdev->dev);
+ struct mc13xxx_regulator_init_data *init_data;
+ int i, ret;
+
+ dev_dbg(&pdev->dev, "%s id %d\n", __func__, pdev->id);
+
+ if (!pdata)
+ return -EINVAL;
+
+ priv = devm_kzalloc(&pdev->dev, sizeof(*priv) +
+ pdata->num_regulators * sizeof(priv->regulators[0]),
+ GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->mc13xxx_regulators = mc13783_regulators;
+ priv->mc13xxx = mc13783;
+
+ for (i = 0; i < pdata->num_regulators; i++) {
+ init_data = &pdata->regulators[i];
+ priv->regulators[i] = regulator_register(
+ &mc13783_regulators[init_data->id].desc,
+ &pdev->dev, init_data->init_data, priv, NULL);
+
+ if (IS_ERR(priv->regulators[i])) {
+ dev_err(&pdev->dev, "failed to register regulator %s\n",
+ mc13783_regulators[i].desc.name);
+ ret = PTR_ERR(priv->regulators[i]);
+ goto err;
+ }
+ }
+
+ platform_set_drvdata(pdev, priv);
+
+ return 0;
+err:
+ while (--i >= 0)
+ regulator_unregister(priv->regulators[i]);
+
+ return ret;
+}
+
+static int __devexit mc13783_regulator_remove(struct platform_device *pdev)
+{
+ struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev);
+ struct mc13xxx_regulator_platform_data *pdata =
+ dev_get_platdata(&pdev->dev);
+ int i;
+
+ platform_set_drvdata(pdev, NULL);
+
+ for (i = 0; i < pdata->num_regulators; i++)
+ regulator_unregister(priv->regulators[i]);
+
+ return 0;
+}
+
+static struct platform_driver mc13783_regulator_driver = {
+ .driver = {
+ .name = "mc13783-regulator",
+ .owner = THIS_MODULE,
+ },
+ .remove = __devexit_p(mc13783_regulator_remove),
+ .probe = mc13783_regulator_probe,
+};
+
+static int __init mc13783_regulator_init(void)
+{
+ return platform_driver_register(&mc13783_regulator_driver);
+}
+subsys_initcall(mc13783_regulator_init);
+
+static void __exit mc13783_regulator_exit(void)
+{
+ platform_driver_unregister(&mc13783_regulator_driver);
+}
+module_exit(mc13783_regulator_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
+MODULE_DESCRIPTION("Regulator Driver for Freescale MC13783 PMIC");
+MODULE_ALIAS("platform:mc13783-regulator");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/mc13892-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/mc13892-regulator.c
new file mode 100644
index 0000000..845aa22
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/mc13892-regulator.c
@@ -0,0 +1,659 @@
+/*
+ * Regulator Driver for Freescale MC13892 PMIC
+ *
+ * Copyright 2010 Yong Shen <yong.shen@linaro.org>
+ *
+ * Based on draft driver from Arnaud Patard <arnaud.patard@rtp-net.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/mfd/mc13892.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/driver.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include "mc13xxx.h"
+
+#define MC13892_REVISION 7
+
+#define MC13892_POWERCTL0 13
+#define MC13892_POWERCTL0_USEROFFSPI 3
+#define MC13892_POWERCTL0_VCOINCELLVSEL 20
+#define MC13892_POWERCTL0_VCOINCELLVSEL_M (7<<20)
+#define MC13892_POWERCTL0_VCOINCELLEN (1<<23)
+
+#define MC13892_SWITCHERS0_SWxHI (1<<23)
+
+#define MC13892_SWITCHERS0 24
+#define MC13892_SWITCHERS0_SW1VSEL 0
+#define MC13892_SWITCHERS0_SW1VSEL_M (0x1f<<0)
+#define MC13892_SWITCHERS0_SW1HI (1<<23)
+#define MC13892_SWITCHERS0_SW1EN 0
+
+#define MC13892_SWITCHERS1 25
+#define MC13892_SWITCHERS1_SW2VSEL 0
+#define MC13892_SWITCHERS1_SW2VSEL_M (0x1f<<0)
+#define MC13892_SWITCHERS1_SW2HI (1<<23)
+#define MC13892_SWITCHERS1_SW2EN 0
+
+#define MC13892_SWITCHERS2 26
+#define MC13892_SWITCHERS2_SW3VSEL 0
+#define MC13892_SWITCHERS2_SW3VSEL_M (0x1f<<0)
+#define MC13892_SWITCHERS2_SW3HI (1<<23)
+#define MC13892_SWITCHERS2_SW3EN 0
+
+#define MC13892_SWITCHERS3 27
+#define MC13892_SWITCHERS3_SW4VSEL 0
+#define MC13892_SWITCHERS3_SW4VSEL_M (0x1f<<0)
+#define MC13892_SWITCHERS3_SW4HI (1<<23)
+#define MC13892_SWITCHERS3_SW4EN 0
+
+#define MC13892_SWITCHERS4 28
+#define MC13892_SWITCHERS4_SW1MODE 0
+#define MC13892_SWITCHERS4_SW1MODE_AUTO (8<<0)
+#define MC13892_SWITCHERS4_SW1MODE_M (0xf<<0)
+#define MC13892_SWITCHERS4_SW2MODE 10
+#define MC13892_SWITCHERS4_SW2MODE_AUTO (8<<10)
+#define MC13892_SWITCHERS4_SW2MODE_M (0xf<<10)
+
+#define MC13892_SWITCHERS5 29
+#define MC13892_SWITCHERS5_SW3MODE 0
+#define MC13892_SWITCHERS5_SW3MODE_AUTO (8<<0)
+#define MC13892_SWITCHERS5_SW3MODE_M (0xf<<0)
+#define MC13892_SWITCHERS5_SW4MODE 8
+#define MC13892_SWITCHERS5_SW4MODE_AUTO (8<<8)
+#define MC13892_SWITCHERS5_SW4MODE_M (0xf<<8)
+#define MC13892_SWITCHERS5_SWBSTEN (1<<20)
+
+#define MC13892_REGULATORSETTING0 30
+#define MC13892_REGULATORSETTING0_VGEN1VSEL 0
+#define MC13892_REGULATORSETTING0_VDIGVSEL 4
+#define MC13892_REGULATORSETTING0_VGEN2VSEL 6
+#define MC13892_REGULATORSETTING0_VPLLVSEL 9
+#define MC13892_REGULATORSETTING0_VUSB2VSEL 11
+#define MC13892_REGULATORSETTING0_VGEN3VSEL 14
+#define MC13892_REGULATORSETTING0_VCAMVSEL 16
+
+#define MC13892_REGULATORSETTING0_VGEN1VSEL_M (3<<0)
+#define MC13892_REGULATORSETTING0_VDIGVSEL_M (3<<4)
+#define MC13892_REGULATORSETTING0_VGEN2VSEL_M (7<<6)
+#define MC13892_REGULATORSETTING0_VPLLVSEL_M (3<<9)
+#define MC13892_REGULATORSETTING0_VUSB2VSEL_M (3<<11)
+#define MC13892_REGULATORSETTING0_VGEN3VSEL_M (1<<14)
+#define MC13892_REGULATORSETTING0_VCAMVSEL_M (3<<16)
+
+#define MC13892_REGULATORSETTING1 31
+#define MC13892_REGULATORSETTING1_VVIDEOVSEL 2
+#define MC13892_REGULATORSETTING1_VAUDIOVSEL 4
+#define MC13892_REGULATORSETTING1_VSDVSEL 6
+
+#define MC13892_REGULATORSETTING1_VVIDEOVSEL_M (3<<2)
+#define MC13892_REGULATORSETTING1_VAUDIOVSEL_M (3<<4)
+#define MC13892_REGULATORSETTING1_VSDVSEL_M (7<<6)
+
+#define MC13892_REGULATORMODE0 32
+#define MC13892_REGULATORMODE0_VGEN1EN (1<<0)
+#define MC13892_REGULATORMODE0_VGEN1STDBY (1<<1)
+#define MC13892_REGULATORMODE0_VGEN1MODE (1<<2)
+#define MC13892_REGULATORMODE0_VIOHIEN (1<<3)
+#define MC13892_REGULATORMODE0_VIOHISTDBY (1<<4)
+#define MC13892_REGULATORMODE0_VIOHIMODE (1<<5)
+#define MC13892_REGULATORMODE0_VDIGEN (1<<9)
+#define MC13892_REGULATORMODE0_VDIGSTDBY (1<<10)
+#define MC13892_REGULATORMODE0_VDIGMODE (1<<11)
+#define MC13892_REGULATORMODE0_VGEN2EN (1<<12)
+#define MC13892_REGULATORMODE0_VGEN2STDBY (1<<13)
+#define MC13892_REGULATORMODE0_VGEN2MODE (1<<14)
+#define MC13892_REGULATORMODE0_VPLLEN (1<<15)
+#define MC13892_REGULATORMODE0_VPLLSTDBY (1<<16)
+#define MC13892_REGULATORMODE0_VPLLMODE (1<<17)
+#define MC13892_REGULATORMODE0_VUSB2EN (1<<18)
+#define MC13892_REGULATORMODE0_VUSB2STDBY (1<<19)
+#define MC13892_REGULATORMODE0_VUSB2MODE (1<<20)
+
+#define MC13892_REGULATORMODE1 33
+#define MC13892_REGULATORMODE1_VGEN3EN (1<<0)
+#define MC13892_REGULATORMODE1_VGEN3STDBY (1<<1)
+#define MC13892_REGULATORMODE1_VGEN3MODE (1<<2)
+#define MC13892_REGULATORMODE1_VCAMEN (1<<6)
+#define MC13892_REGULATORMODE1_VCAMSTDBY (1<<7)
+#define MC13892_REGULATORMODE1_VCAMMODE (1<<8)
+#define MC13892_REGULATORMODE1_VCAMCONFIGEN (1<<9)
+#define MC13892_REGULATORMODE1_VVIDEOEN (1<<12)
+#define MC13892_REGULATORMODE1_VVIDEOSTDBY (1<<13)
+#define MC13892_REGULATORMODE1_VVIDEOMODE (1<<14)
+#define MC13892_REGULATORMODE1_VAUDIOEN (1<<15)
+#define MC13892_REGULATORMODE1_VAUDIOSTDBY (1<<16)
+#define MC13892_REGULATORMODE1_VAUDIOMODE (1<<17)
+#define MC13892_REGULATORMODE1_VSDEN (1<<18)
+#define MC13892_REGULATORMODE1_VSDSTDBY (1<<19)
+#define MC13892_REGULATORMODE1_VSDMODE (1<<20)
+
+#define MC13892_POWERMISC 34
+#define MC13892_POWERMISC_GPO1EN (1<<6)
+#define MC13892_POWERMISC_GPO2EN (1<<8)
+#define MC13892_POWERMISC_GPO3EN (1<<10)
+#define MC13892_POWERMISC_GPO4EN (1<<12)
+#define MC13892_POWERMISC_PWGT1SPIEN (1<<15)
+#define MC13892_POWERMISC_PWGT2SPIEN (1<<16)
+#define MC13892_POWERMISC_GPO4ADINEN (1<<21)
+
+#define MC13892_POWERMISC_PWGTSPI_M (3 << 15)
+
+#define MC13892_USB1 50
+#define MC13892_USB1_VUSBEN (1<<3)
+
+static const int mc13892_vcoincell[] = {
+ 2500000, 2700000, 2800000, 2900000, 3000000, 3100000,
+ 3200000, 3300000,
+};
+
+static const int mc13892_sw1[] = {
+ 600000, 625000, 650000, 675000, 700000, 725000,
+ 750000, 775000, 800000, 825000, 850000, 875000,
+ 900000, 925000, 950000, 975000, 1000000, 1025000,
+ 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
+ 1200000, 1225000, 1250000, 1275000, 1300000, 1325000,
+ 1350000, 1375000
+};
+
+static const int mc13892_sw[] = {
+ 600000, 625000, 650000, 675000, 700000, 725000,
+ 750000, 775000, 800000, 825000, 850000, 875000,
+ 900000, 925000, 950000, 975000, 1000000, 1025000,
+ 1050000, 1075000, 1100000, 1125000, 1150000, 1175000,
+ 1200000, 1225000, 1250000, 1275000, 1300000, 1325000,
+ 1350000, 1375000, 1400000, 1425000, 1450000, 1475000,
+ 1500000, 1525000, 1550000, 1575000, 1600000, 1625000,
+ 1650000, 1675000, 1700000, 1725000, 1750000, 1775000,
+ 1800000, 1825000, 1850000, 1875000
+};
+
+static const int mc13892_swbst[] = {
+ 5000000,
+};
+
+static const int mc13892_viohi[] = {
+ 2775000,
+};
+
+static const int mc13892_vpll[] = {
+ 1050000, 1250000, 1650000, 1800000,
+};
+
+static const int mc13892_vdig[] = {
+ 1050000, 1250000, 1650000, 1800000,
+};
+
+static const int mc13892_vsd[] = {
+ 1800000, 2000000, 2600000, 2700000,
+ 2800000, 2900000, 3000000, 3150000,
+};
+
+static const int mc13892_vusb2[] = {
+ 2400000, 2600000, 2700000, 2775000,
+};
+
+static const int mc13892_vvideo[] = {
+ 2700000, 2775000, 2500000, 2600000,
+};
+
+static const int mc13892_vaudio[] = {
+ 2300000, 2500000, 2775000, 3000000,
+};
+
+static const int mc13892_vcam[] = {
+ 2500000, 2600000, 2750000, 3000000,
+};
+
+static const int mc13892_vgen1[] = {
+ 1200000, 1500000, 2775000, 3150000,
+};
+
+static const int mc13892_vgen2[] = {
+ 1200000, 1500000, 1600000, 1800000,
+ 2700000, 2800000, 3000000, 3150000,
+};
+
+static const int mc13892_vgen3[] = {
+ 1800000, 2900000,
+};
+
+static const int mc13892_vusb[] = {
+ 3300000,
+};
+
+static const int mc13892_gpo[] = {
+ 2750000,
+};
+
+static const int mc13892_pwgtdrv[] = {
+ 5000000,
+};
+
+static struct regulator_ops mc13892_gpo_regulator_ops;
+/* sw regulators need special care due to the "hi bit" */
+static struct regulator_ops mc13892_sw_regulator_ops;
+
+
+#define MC13892_FIXED_DEFINE(name, reg, voltages) \
+ MC13xxx_FIXED_DEFINE(MC13892_, name, reg, voltages, \
+ mc13xxx_fixed_regulator_ops)
+
+#define MC13892_GPO_DEFINE(name, reg, voltages) \
+ MC13xxx_GPO_DEFINE(MC13892_, name, reg, voltages, \
+ mc13892_gpo_regulator_ops)
+
+#define MC13892_SW_DEFINE(name, reg, vsel_reg, voltages) \
+ MC13xxx_DEFINE(MC13892_, name, reg, vsel_reg, voltages, \
+ mc13892_sw_regulator_ops)
+
+#define MC13892_DEFINE_REGU(name, reg, vsel_reg, voltages) \
+ MC13xxx_DEFINE(MC13892_, name, reg, vsel_reg, voltages, \
+ mc13xxx_regulator_ops)
+
+static struct mc13xxx_regulator mc13892_regulators[] = {
+ MC13892_DEFINE_REGU(VCOINCELL, POWERCTL0, POWERCTL0, mc13892_vcoincell),
+ MC13892_SW_DEFINE(SW1, SWITCHERS0, SWITCHERS0, mc13892_sw1),
+ MC13892_SW_DEFINE(SW2, SWITCHERS1, SWITCHERS1, mc13892_sw),
+ MC13892_SW_DEFINE(SW3, SWITCHERS2, SWITCHERS2, mc13892_sw),
+ MC13892_SW_DEFINE(SW4, SWITCHERS3, SWITCHERS3, mc13892_sw),
+ MC13892_FIXED_DEFINE(SWBST, SWITCHERS5, mc13892_swbst),
+ MC13892_FIXED_DEFINE(VIOHI, REGULATORMODE0, mc13892_viohi),
+ MC13892_DEFINE_REGU(VPLL, REGULATORMODE0, REGULATORSETTING0, \
+ mc13892_vpll),
+ MC13892_DEFINE_REGU(VDIG, REGULATORMODE0, REGULATORSETTING0, \
+ mc13892_vdig),
+ MC13892_DEFINE_REGU(VSD, REGULATORMODE1, REGULATORSETTING1, \
+ mc13892_vsd),
+ MC13892_DEFINE_REGU(VUSB2, REGULATORMODE0, REGULATORSETTING0, \
+ mc13892_vusb2),
+ MC13892_DEFINE_REGU(VVIDEO, REGULATORMODE1, REGULATORSETTING1, \
+ mc13892_vvideo),
+ MC13892_DEFINE_REGU(VAUDIO, REGULATORMODE1, REGULATORSETTING1, \
+ mc13892_vaudio),
+ MC13892_DEFINE_REGU(VCAM, REGULATORMODE1, REGULATORSETTING0, \
+ mc13892_vcam),
+ MC13892_DEFINE_REGU(VGEN1, REGULATORMODE0, REGULATORSETTING0, \
+ mc13892_vgen1),
+ MC13892_DEFINE_REGU(VGEN2, REGULATORMODE0, REGULATORSETTING0, \
+ mc13892_vgen2),
+ MC13892_DEFINE_REGU(VGEN3, REGULATORMODE1, REGULATORSETTING0, \
+ mc13892_vgen3),
+ MC13892_FIXED_DEFINE(VUSB, USB1, mc13892_vusb),
+ MC13892_GPO_DEFINE(GPO1, POWERMISC, mc13892_gpo),
+ MC13892_GPO_DEFINE(GPO2, POWERMISC, mc13892_gpo),
+ MC13892_GPO_DEFINE(GPO3, POWERMISC, mc13892_gpo),
+ MC13892_GPO_DEFINE(GPO4, POWERMISC, mc13892_gpo),
+ MC13892_GPO_DEFINE(PWGT1SPI, POWERMISC, mc13892_pwgtdrv),
+ MC13892_GPO_DEFINE(PWGT2SPI, POWERMISC, mc13892_pwgtdrv),
+};
+
+static int mc13892_powermisc_rmw(struct mc13xxx_regulator_priv *priv, u32 mask,
+ u32 val)
+{
+ struct mc13xxx *mc13892 = priv->mc13xxx;
+ int ret;
+ u32 valread;
+
+ BUG_ON(val & ~mask);
+
+ ret = mc13xxx_reg_read(mc13892, MC13892_POWERMISC, &valread);
+ if (ret)
+ return ret;
+
+ /* Update the stored state for Power Gates. */
+ priv->powermisc_pwgt_state =
+ (priv->powermisc_pwgt_state & ~mask) | val;
+ priv->powermisc_pwgt_state &= MC13892_POWERMISC_PWGTSPI_M;
+
+ /* Construct the new register value */
+ valread = (valread & ~mask) | val;
+ /* Overwrite the PWGTxEN with the stored version */
+ valread = (valread & ~MC13892_POWERMISC_PWGTSPI_M) |
+ priv->powermisc_pwgt_state;
+
+ return mc13xxx_reg_write(mc13892, MC13892_POWERMISC, valread);
+}
+
+static int mc13892_gpo_regulator_enable(struct regulator_dev *rdev)
+{
+ struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
+ int id = rdev_get_id(rdev);
+ int ret;
+ u32 en_val = mc13892_regulators[id].enable_bit;
+ u32 mask = mc13892_regulators[id].enable_bit;
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
+
+ /* Power Gate enable value is 0 */
+ if (id == MC13892_PWGT1SPI || id == MC13892_PWGT2SPI)
+ en_val = 0;
+
+ if (id == MC13892_GPO4)
+ mask |= MC13892_POWERMISC_GPO4ADINEN;
+
+ mc13xxx_lock(priv->mc13xxx);
+ ret = mc13892_powermisc_rmw(priv, mask, en_val);
+ mc13xxx_unlock(priv->mc13xxx);
+
+ return ret;
+}
+
+static int mc13892_gpo_regulator_disable(struct regulator_dev *rdev)
+{
+ struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
+ int id = rdev_get_id(rdev);
+ int ret;
+ u32 dis_val = 0;
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
+
+ /* Power Gate disable value is 1 */
+ if (id == MC13892_PWGT1SPI || id == MC13892_PWGT2SPI)
+ dis_val = mc13892_regulators[id].enable_bit;
+
+ mc13xxx_lock(priv->mc13xxx);
+ ret = mc13892_powermisc_rmw(priv, mc13892_regulators[id].enable_bit,
+ dis_val);
+ mc13xxx_unlock(priv->mc13xxx);
+
+ return ret;
+}
+
+static int mc13892_gpo_regulator_is_enabled(struct regulator_dev *rdev)
+{
+ struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
+ int ret, id = rdev_get_id(rdev);
+ unsigned int val;
+
+ mc13xxx_lock(priv->mc13xxx);
+ ret = mc13xxx_reg_read(priv->mc13xxx, mc13892_regulators[id].reg, &val);
+ mc13xxx_unlock(priv->mc13xxx);
+
+ if (ret)
+ return ret;
+
+ /* Power Gates state is stored in powermisc_pwgt_state
+ * where the meaning of bits is negated */
+ val = (val & ~MC13892_POWERMISC_PWGTSPI_M) |
+ (priv->powermisc_pwgt_state ^ MC13892_POWERMISC_PWGTSPI_M);
+
+ return (val & mc13892_regulators[id].enable_bit) != 0;
+}
+
+
+static struct regulator_ops mc13892_gpo_regulator_ops = {
+ .enable = mc13892_gpo_regulator_enable,
+ .disable = mc13892_gpo_regulator_disable,
+ .is_enabled = mc13892_gpo_regulator_is_enabled,
+ .list_voltage = mc13xxx_regulator_list_voltage,
+ .set_voltage = mc13xxx_fixed_regulator_set_voltage,
+ .get_voltage = mc13xxx_fixed_regulator_get_voltage,
+};
+
+static int mc13892_sw_regulator_get_voltage(struct regulator_dev *rdev)
+{
+ struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
+ int ret, id = rdev_get_id(rdev);
+ unsigned int val, hi;
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
+
+ mc13xxx_lock(priv->mc13xxx);
+ ret = mc13xxx_reg_read(priv->mc13xxx,
+ mc13892_regulators[id].vsel_reg, &val);
+ mc13xxx_unlock(priv->mc13xxx);
+ if (ret)
+ return ret;
+
+ hi = val & MC13892_SWITCHERS0_SWxHI;
+ val = (val & mc13892_regulators[id].vsel_mask)
+ >> mc13892_regulators[id].vsel_shift;
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d val: %d\n", __func__, id, val);
+
+ if (hi)
+ val = (25000 * val) + 1100000;
+ else
+ val = (25000 * val) + 600000;
+
+ return val;
+}
+
+static int mc13892_sw_regulator_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
+ int hi, value, mask, id = rdev_get_id(rdev);
+ u32 valread;
+ int ret;
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d min_uV: %d max_uV: %d\n",
+ __func__, id, min_uV, max_uV);
+
+ /* Find the best index */
+ value = mc13xxx_get_best_voltage_index(rdev, min_uV, max_uV);
+ dev_dbg(rdev_get_dev(rdev), "%s best value: %d\n", __func__, value);
+ if (value < 0)
+ return value;
+
+ value = mc13892_regulators[id].voltages[value];
+
+ mc13xxx_lock(priv->mc13xxx);
+ ret = mc13xxx_reg_read(priv->mc13xxx,
+ mc13892_regulators[id].vsel_reg, &valread);
+ if (ret)
+ goto err;
+
+ if (value > 1375000)
+ hi = 1;
+ else if (value < 1100000)
+ hi = 0;
+ else
+ hi = valread & MC13892_SWITCHERS0_SWxHI;
+
+ if (hi) {
+ value = (value - 1100000) / 25000;
+ value |= MC13892_SWITCHERS0_SWxHI;
+ } else
+ value = (value - 600000) / 25000;
+
+ mask = mc13892_regulators[id].vsel_mask | MC13892_SWITCHERS0_SWxHI;
+ valread = (valread & ~mask) |
+ (value << mc13892_regulators[id].vsel_shift);
+ ret = mc13xxx_reg_write(priv->mc13xxx, mc13892_regulators[id].vsel_reg,
+ valread);
+err:
+ mc13xxx_unlock(priv->mc13xxx);
+
+ return ret;
+}
+
+static struct regulator_ops mc13892_sw_regulator_ops = {
+ .is_enabled = mc13xxx_sw_regulator_is_enabled,
+ .list_voltage = mc13xxx_regulator_list_voltage,
+ .set_voltage = mc13892_sw_regulator_set_voltage,
+ .get_voltage = mc13892_sw_regulator_get_voltage,
+};
+
+static int mc13892_vcam_set_mode(struct regulator_dev *rdev, unsigned int mode)
+{
+ unsigned int en_val = 0;
+ struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
+ int ret, id = rdev_get_id(rdev);
+
+ if (mode == REGULATOR_MODE_FAST)
+ en_val = MC13892_REGULATORMODE1_VCAMCONFIGEN;
+
+ mc13xxx_lock(priv->mc13xxx);
+ ret = mc13xxx_reg_rmw(priv->mc13xxx, mc13892_regulators[id].reg,
+ MC13892_REGULATORMODE1_VCAMCONFIGEN, en_val);
+ mc13xxx_unlock(priv->mc13xxx);
+
+ return ret;
+}
+
+static unsigned int mc13892_vcam_get_mode(struct regulator_dev *rdev)
+{
+ struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
+ int ret, id = rdev_get_id(rdev);
+ unsigned int val;
+
+ mc13xxx_lock(priv->mc13xxx);
+ ret = mc13xxx_reg_read(priv->mc13xxx, mc13892_regulators[id].reg, &val);
+ mc13xxx_unlock(priv->mc13xxx);
+
+ if (ret)
+ return ret;
+
+ if (val & MC13892_REGULATORMODE1_VCAMCONFIGEN)
+ return REGULATOR_MODE_FAST;
+
+ return REGULATOR_MODE_NORMAL;
+}
+
+
+static int __devinit mc13892_regulator_probe(struct platform_device *pdev)
+{
+ struct mc13xxx_regulator_priv *priv;
+ struct mc13xxx *mc13892 = dev_get_drvdata(pdev->dev.parent);
+ struct mc13xxx_regulator_platform_data *pdata =
+ dev_get_platdata(&pdev->dev);
+ struct mc13xxx_regulator_init_data *mc13xxx_data;
+ int i, ret;
+ int num_regulators = 0;
+ u32 val;
+
+ num_regulators = mc13xxx_get_num_regulators_dt(pdev);
+ if (num_regulators <= 0 && pdata)
+ num_regulators = pdata->num_regulators;
+ if (num_regulators <= 0)
+ return -EINVAL;
+
+ priv = devm_kzalloc(&pdev->dev, sizeof(*priv) +
+ num_regulators * sizeof(priv->regulators[0]),
+ GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ priv->num_regulators = num_regulators;
+ priv->mc13xxx_regulators = mc13892_regulators;
+ priv->mc13xxx = mc13892;
+ platform_set_drvdata(pdev, priv);
+
+ mc13xxx_lock(mc13892);
+ ret = mc13xxx_reg_read(mc13892, MC13892_REVISION, &val);
+ if (ret)
+ goto err_unlock;
+
+ /* enable switch auto mode */
+ if ((val & 0x0000FFFF) == 0x45d0) {
+ ret = mc13xxx_reg_rmw(mc13892, MC13892_SWITCHERS4,
+ MC13892_SWITCHERS4_SW1MODE_M |
+ MC13892_SWITCHERS4_SW2MODE_M,
+ MC13892_SWITCHERS4_SW1MODE_AUTO |
+ MC13892_SWITCHERS4_SW2MODE_AUTO);
+ if (ret)
+ goto err_unlock;
+
+ ret = mc13xxx_reg_rmw(mc13892, MC13892_SWITCHERS5,
+ MC13892_SWITCHERS5_SW3MODE_M |
+ MC13892_SWITCHERS5_SW4MODE_M,
+ MC13892_SWITCHERS5_SW3MODE_AUTO |
+ MC13892_SWITCHERS5_SW4MODE_AUTO);
+ if (ret)
+ goto err_unlock;
+ }
+ mc13xxx_unlock(mc13892);
+
+ mc13892_regulators[MC13892_VCAM].desc.ops->set_mode
+ = mc13892_vcam_set_mode;
+ mc13892_regulators[MC13892_VCAM].desc.ops->get_mode
+ = mc13892_vcam_get_mode;
+
+ mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13892_regulators,
+ ARRAY_SIZE(mc13892_regulators));
+ for (i = 0; i < num_regulators; i++) {
+ struct regulator_init_data *init_data;
+ struct regulator_desc *desc;
+ struct device_node *node = NULL;
+ int id;
+
+ if (mc13xxx_data) {
+ id = mc13xxx_data[i].id;
+ init_data = mc13xxx_data[i].init_data;
+ node = mc13xxx_data[i].node;
+ } else {
+ id = pdata->regulators[i].id;
+ init_data = pdata->regulators[i].init_data;
+ }
+ desc = &mc13892_regulators[id].desc;
+
+ priv->regulators[i] = regulator_register(
+ desc, &pdev->dev, init_data, priv, node);
+
+ if (IS_ERR(priv->regulators[i])) {
+ dev_err(&pdev->dev, "failed to register regulator %s\n",
+ mc13892_regulators[i].desc.name);
+ ret = PTR_ERR(priv->regulators[i]);
+ goto err;
+ }
+ }
+
+ return 0;
+err:
+ while (--i >= 0)
+ regulator_unregister(priv->regulators[i]);
+ return ret;
+
+err_unlock:
+ mc13xxx_unlock(mc13892);
+ return ret;
+}
+
+static int __devexit mc13892_regulator_remove(struct platform_device *pdev)
+{
+ struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev);
+ int i;
+
+ platform_set_drvdata(pdev, NULL);
+
+ for (i = 0; i < priv->num_regulators; i++)
+ regulator_unregister(priv->regulators[i]);
+
+ return 0;
+}
+
+static struct platform_driver mc13892_regulator_driver = {
+ .driver = {
+ .name = "mc13892-regulator",
+ .owner = THIS_MODULE,
+ },
+ .remove = __devexit_p(mc13892_regulator_remove),
+ .probe = mc13892_regulator_probe,
+};
+
+static int __init mc13892_regulator_init(void)
+{
+ return platform_driver_register(&mc13892_regulator_driver);
+}
+subsys_initcall(mc13892_regulator_init);
+
+static void __exit mc13892_regulator_exit(void)
+{
+ platform_driver_unregister(&mc13892_regulator_driver);
+}
+module_exit(mc13892_regulator_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Yong Shen <yong.shen@linaro.org>");
+MODULE_DESCRIPTION("Regulator Driver for Freescale MC13892 PMIC");
+MODULE_ALIAS("platform:mc13892-regulator");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/mc13xxx-regulator-core.c b/ap/os/linux/linux-3.4.x/drivers/regulator/mc13xxx-regulator-core.c
new file mode 100644
index 0000000..62dcd0a
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/mc13xxx-regulator-core.c
@@ -0,0 +1,301 @@
+/*
+ * Regulator Driver for Freescale MC13xxx PMIC
+ *
+ * Copyright 2010 Yong Shen <yong.shen@linaro.org>
+ *
+ * Based on mc13783 regulator driver :
+ * Copyright (C) 2008 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
+ * Copyright 2009 Alberto Panizzo <maramaopercheseimorto@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Regs infos taken from mc13xxx drivers from freescale and mc13xxx.pdf file
+ * from freescale
+ */
+
+#include <linux/mfd/mc13xxx.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include "mc13xxx.h"
+
+static int mc13xxx_regulator_enable(struct regulator_dev *rdev)
+{
+ struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
+ struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
+ int id = rdev_get_id(rdev);
+ int ret;
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
+
+ mc13xxx_lock(priv->mc13xxx);
+ ret = mc13xxx_reg_rmw(priv->mc13xxx, mc13xxx_regulators[id].reg,
+ mc13xxx_regulators[id].enable_bit,
+ mc13xxx_regulators[id].enable_bit);
+ mc13xxx_unlock(priv->mc13xxx);
+
+ return ret;
+}
+
+static int mc13xxx_regulator_disable(struct regulator_dev *rdev)
+{
+ struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
+ struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
+ int id = rdev_get_id(rdev);
+ int ret;
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
+
+ mc13xxx_lock(priv->mc13xxx);
+ ret = mc13xxx_reg_rmw(priv->mc13xxx, mc13xxx_regulators[id].reg,
+ mc13xxx_regulators[id].enable_bit, 0);
+ mc13xxx_unlock(priv->mc13xxx);
+
+ return ret;
+}
+
+static int mc13xxx_regulator_is_enabled(struct regulator_dev *rdev)
+{
+ struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
+ struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
+ int ret, id = rdev_get_id(rdev);
+ unsigned int val;
+
+ mc13xxx_lock(priv->mc13xxx);
+ ret = mc13xxx_reg_read(priv->mc13xxx, mc13xxx_regulators[id].reg, &val);
+ mc13xxx_unlock(priv->mc13xxx);
+
+ if (ret)
+ return ret;
+
+ return (val & mc13xxx_regulators[id].enable_bit) != 0;
+}
+
+int mc13xxx_regulator_list_voltage(struct regulator_dev *rdev,
+ unsigned selector)
+{
+ int id = rdev_get_id(rdev);
+ struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
+ struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
+
+ if (selector >= mc13xxx_regulators[id].desc.n_voltages)
+ return -EINVAL;
+
+ return mc13xxx_regulators[id].voltages[selector];
+}
+EXPORT_SYMBOL_GPL(mc13xxx_regulator_list_voltage);
+
+int mc13xxx_get_best_voltage_index(struct regulator_dev *rdev,
+ int min_uV, int max_uV)
+{
+ struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
+ struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
+ int reg_id = rdev_get_id(rdev);
+ int i;
+ int bestmatch;
+ int bestindex;
+
+ /*
+ * Locate the minimum voltage fitting the criteria on
+ * this regulator. The switchable voltages are not
+ * in strict falling order so we need to check them
+ * all for the best match.
+ */
+ bestmatch = INT_MAX;
+ bestindex = -1;
+ for (i = 0; i < mc13xxx_regulators[reg_id].desc.n_voltages; i++) {
+ if (mc13xxx_regulators[reg_id].voltages[i] >= min_uV &&
+ mc13xxx_regulators[reg_id].voltages[i] < bestmatch) {
+ bestmatch = mc13xxx_regulators[reg_id].voltages[i];
+ bestindex = i;
+ }
+ }
+
+ if (bestindex < 0 || bestmatch > max_uV) {
+ dev_warn(&rdev->dev, "no possible value for %d<=x<=%d uV\n",
+ min_uV, max_uV);
+ return -EINVAL;
+ }
+ return bestindex;
+}
+EXPORT_SYMBOL_GPL(mc13xxx_get_best_voltage_index);
+
+static int mc13xxx_regulator_set_voltage(struct regulator_dev *rdev, int min_uV,
+ int max_uV, unsigned *selector)
+{
+ struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
+ struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
+ int value, id = rdev_get_id(rdev);
+ int ret;
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d min_uV: %d max_uV: %d\n",
+ __func__, id, min_uV, max_uV);
+
+ /* Find the best index */
+ value = mc13xxx_get_best_voltage_index(rdev, min_uV, max_uV);
+ dev_dbg(rdev_get_dev(rdev), "%s best value: %d\n", __func__, value);
+ if (value < 0)
+ return value;
+
+ mc13xxx_lock(priv->mc13xxx);
+ ret = mc13xxx_reg_rmw(priv->mc13xxx, mc13xxx_regulators[id].vsel_reg,
+ mc13xxx_regulators[id].vsel_mask,
+ value << mc13xxx_regulators[id].vsel_shift);
+ mc13xxx_unlock(priv->mc13xxx);
+
+ return ret;
+}
+
+static int mc13xxx_regulator_get_voltage(struct regulator_dev *rdev)
+{
+ struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
+ struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
+ int ret, id = rdev_get_id(rdev);
+ unsigned int val;
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
+
+ mc13xxx_lock(priv->mc13xxx);
+ ret = mc13xxx_reg_read(priv->mc13xxx,
+ mc13xxx_regulators[id].vsel_reg, &val);
+ mc13xxx_unlock(priv->mc13xxx);
+
+ if (ret)
+ return ret;
+
+ val = (val & mc13xxx_regulators[id].vsel_mask)
+ >> mc13xxx_regulators[id].vsel_shift;
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d val: %d\n", __func__, id, val);
+
+ BUG_ON(val >= mc13xxx_regulators[id].desc.n_voltages);
+
+ return mc13xxx_regulators[id].voltages[val];
+}
+
+struct regulator_ops mc13xxx_regulator_ops = {
+ .enable = mc13xxx_regulator_enable,
+ .disable = mc13xxx_regulator_disable,
+ .is_enabled = mc13xxx_regulator_is_enabled,
+ .list_voltage = mc13xxx_regulator_list_voltage,
+ .set_voltage = mc13xxx_regulator_set_voltage,
+ .get_voltage = mc13xxx_regulator_get_voltage,
+};
+EXPORT_SYMBOL_GPL(mc13xxx_regulator_ops);
+
+int mc13xxx_fixed_regulator_set_voltage(struct regulator_dev *rdev, int min_uV,
+ int max_uV, unsigned *selector)
+{
+ struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
+ struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
+ int id = rdev_get_id(rdev);
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d min_uV: %d max_uV: %d\n",
+ __func__, id, min_uV, max_uV);
+
+ if (min_uV >= mc13xxx_regulators[id].voltages[0] &&
+ max_uV <= mc13xxx_regulators[id].voltages[0])
+ return 0;
+ else
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(mc13xxx_fixed_regulator_set_voltage);
+
+int mc13xxx_fixed_regulator_get_voltage(struct regulator_dev *rdev)
+{
+ struct mc13xxx_regulator_priv *priv = rdev_get_drvdata(rdev);
+ struct mc13xxx_regulator *mc13xxx_regulators = priv->mc13xxx_regulators;
+ int id = rdev_get_id(rdev);
+
+ dev_dbg(rdev_get_dev(rdev), "%s id: %d\n", __func__, id);
+
+ return mc13xxx_regulators[id].voltages[0];
+}
+EXPORT_SYMBOL_GPL(mc13xxx_fixed_regulator_get_voltage);
+
+struct regulator_ops mc13xxx_fixed_regulator_ops = {
+ .enable = mc13xxx_regulator_enable,
+ .disable = mc13xxx_regulator_disable,
+ .is_enabled = mc13xxx_regulator_is_enabled,
+ .list_voltage = mc13xxx_regulator_list_voltage,
+ .set_voltage = mc13xxx_fixed_regulator_set_voltage,
+ .get_voltage = mc13xxx_fixed_regulator_get_voltage,
+};
+EXPORT_SYMBOL_GPL(mc13xxx_fixed_regulator_ops);
+
+int mc13xxx_sw_regulator_is_enabled(struct regulator_dev *rdev)
+{
+ return 1;
+}
+EXPORT_SYMBOL_GPL(mc13xxx_sw_regulator_is_enabled);
+
+#ifdef CONFIG_OF
+int __devinit mc13xxx_get_num_regulators_dt(struct platform_device *pdev)
+{
+ struct device_node *parent, *child;
+ int num = 0;
+
+ of_node_get(pdev->dev.parent->of_node);
+ parent = of_find_node_by_name(pdev->dev.parent->of_node, "regulators");
+ if (!parent)
+ return -ENODEV;
+
+ for_each_child_of_node(parent, child)
+ num++;
+
+ return num;
+}
+EXPORT_SYMBOL_GPL(mc13xxx_get_num_regulators_dt);
+
+struct mc13xxx_regulator_init_data * __devinit mc13xxx_parse_regulators_dt(
+ struct platform_device *pdev, struct mc13xxx_regulator *regulators,
+ int num_regulators)
+{
+ struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev);
+ struct mc13xxx_regulator_init_data *data, *p;
+ struct device_node *parent, *child;
+ int i;
+
+ of_node_get(pdev->dev.parent->of_node);
+ parent = of_find_node_by_name(pdev->dev.parent->of_node, "regulators");
+ if (!parent)
+ return NULL;
+
+ data = devm_kzalloc(&pdev->dev, sizeof(*data) * priv->num_regulators,
+ GFP_KERNEL);
+ if (!data)
+ return NULL;
+ p = data;
+
+ for_each_child_of_node(parent, child) {
+ for (i = 0; i < num_regulators; i++) {
+ if (!of_node_cmp(child->name,
+ regulators[i].desc.name)) {
+ p->id = i;
+ p->init_data = of_get_regulator_init_data(
+ &pdev->dev, child);
+ p->node = child;
+ p++;
+ break;
+ }
+ }
+ }
+
+ return data;
+}
+EXPORT_SYMBOL_GPL(mc13xxx_parse_regulators_dt);
+#endif
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Yong Shen <yong.shen@linaro.org>");
+MODULE_DESCRIPTION("Regulator Driver for Freescale MC13xxx PMIC");
+MODULE_ALIAS("mc13xxx-regulator-core");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/mc13xxx.h b/ap/os/linux/linux-3.4.x/drivers/regulator/mc13xxx.h
new file mode 100644
index 0000000..b3961c6
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/mc13xxx.h
@@ -0,0 +1,121 @@
+/*
+ * mc13xxx.h - regulators for the Freescale mc13xxx PMIC
+ *
+ * Copyright (C) 2010 Yong Shen <yong.shen@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __LINUX_REGULATOR_MC13XXX_H
+#define __LINUX_REGULATOR_MC13XXX_H
+
+#include <linux/regulator/driver.h>
+
+struct mc13xxx_regulator {
+ struct regulator_desc desc;
+ int reg;
+ int enable_bit;
+ int vsel_reg;
+ int vsel_shift;
+ int vsel_mask;
+ int hi_bit;
+ int const *voltages;
+};
+
+struct mc13xxx_regulator_priv {
+ struct mc13xxx *mc13xxx;
+ u32 powermisc_pwgt_state;
+ struct mc13xxx_regulator *mc13xxx_regulators;
+ int num_regulators;
+ struct regulator_dev *regulators[];
+};
+
+extern int mc13xxx_sw_regulator(struct regulator_dev *rdev);
+extern int mc13xxx_sw_regulator_is_enabled(struct regulator_dev *rdev);
+extern int mc13xxx_get_best_voltage_index(struct regulator_dev *rdev,
+ int min_uV, int max_uV);
+extern int mc13xxx_regulator_list_voltage(struct regulator_dev *rdev,
+ unsigned selector);
+extern int mc13xxx_fixed_regulator_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector);
+extern int mc13xxx_fixed_regulator_get_voltage(struct regulator_dev *rdev);
+
+#ifdef CONFIG_OF
+extern int mc13xxx_get_num_regulators_dt(struct platform_device *pdev);
+extern struct mc13xxx_regulator_init_data *mc13xxx_parse_regulators_dt(
+ struct platform_device *pdev, struct mc13xxx_regulator *regulators,
+ int num_regulators);
+#else
+static inline int mc13xxx_get_num_regulators_dt(struct platform_device *pdev)
+{
+ return -ENODEV;
+}
+
+static inline struct mc13xxx_regulator_init_data *mc13xxx_parse_regulators_dt(
+ struct platform_device *pdev, struct mc13xxx_regulator *regulators,
+ int num_regulators)
+{
+ return NULL;
+}
+#endif
+
+extern struct regulator_ops mc13xxx_regulator_ops;
+extern struct regulator_ops mc13xxx_fixed_regulator_ops;
+
+#define MC13xxx_DEFINE(prefix, _name, _reg, _vsel_reg, _voltages, _ops) \
+ [prefix ## _name] = { \
+ .desc = { \
+ .name = #_name, \
+ .n_voltages = ARRAY_SIZE(_voltages), \
+ .ops = &_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = prefix ## _name, \
+ .owner = THIS_MODULE, \
+ }, \
+ .reg = prefix ## _reg, \
+ .enable_bit = prefix ## _reg ## _ ## _name ## EN, \
+ .vsel_reg = prefix ## _vsel_reg, \
+ .vsel_shift = prefix ## _vsel_reg ## _ ## _name ## VSEL,\
+ .vsel_mask = prefix ## _vsel_reg ## _ ## _name ## VSEL_M,\
+ .voltages = _voltages, \
+ }
+
+#define MC13xxx_FIXED_DEFINE(prefix, _name, _reg, _voltages, _ops) \
+ [prefix ## _name] = { \
+ .desc = { \
+ .name = #_name, \
+ .n_voltages = ARRAY_SIZE(_voltages), \
+ .ops = &_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = prefix ## _name, \
+ .owner = THIS_MODULE, \
+ }, \
+ .reg = prefix ## _reg, \
+ .enable_bit = prefix ## _reg ## _ ## _name ## EN, \
+ .voltages = _voltages, \
+ }
+
+#define MC13xxx_GPO_DEFINE(prefix, _name, _reg, _voltages, _ops) \
+ [prefix ## _name] = { \
+ .desc = { \
+ .name = #_name, \
+ .n_voltages = ARRAY_SIZE(_voltages), \
+ .ops = &_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = prefix ## _name, \
+ .owner = THIS_MODULE, \
+ }, \
+ .reg = prefix ## _reg, \
+ .enable_bit = prefix ## _reg ## _ ## _name ## EN, \
+ .voltages = _voltages, \
+ }
+
+#define MC13xxx_DEFINE_SW(_name, _reg, _vsel_reg, _voltages, ops) \
+ MC13xxx_DEFINE(SW, _name, _reg, _vsel_reg, _voltages, ops)
+#define MC13xxx_DEFINE_REGU(_name, _reg, _vsel_reg, _voltages, ops) \
+ MC13xxx_DEFINE(REGU, _name, _reg, _vsel_reg, _voltages, ops)
+
+#endif
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/of_regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/of_regulator.c
new file mode 100644
index 0000000..679734d
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/of_regulator.c
@@ -0,0 +1,87 @@
+/*
+ * OF helpers for regulator framework
+ *
+ * Copyright (C) 2011 Texas Instruments, Inc.
+ * Rajendra Nayak <rnayak@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/regulator/machine.h>
+
+static void of_get_regulation_constraints(struct device_node *np,
+ struct regulator_init_data **init_data)
+{
+ const __be32 *min_uV, *max_uV, *uV_offset;
+ const __be32 *min_uA, *max_uA;
+ struct regulation_constraints *constraints = &(*init_data)->constraints;
+
+ constraints->name = of_get_property(np, "regulator-name", NULL);
+
+ min_uV = of_get_property(np, "regulator-min-microvolt", NULL);
+ if (min_uV)
+ constraints->min_uV = be32_to_cpu(*min_uV);
+ max_uV = of_get_property(np, "regulator-max-microvolt", NULL);
+ if (max_uV)
+ constraints->max_uV = be32_to_cpu(*max_uV);
+
+ /* Voltage change possible? */
+ if (constraints->min_uV != constraints->max_uV)
+ constraints->valid_ops_mask |= REGULATOR_CHANGE_VOLTAGE;
+ /* Only one voltage? Then make sure it's set. */
+ if (min_uV && max_uV && constraints->min_uV == constraints->max_uV)
+ constraints->apply_uV = true;
+
+ uV_offset = of_get_property(np, "regulator-microvolt-offset", NULL);
+ if (uV_offset)
+ constraints->uV_offset = be32_to_cpu(*uV_offset);
+ min_uA = of_get_property(np, "regulator-min-microamp", NULL);
+ if (min_uA)
+ constraints->min_uA = be32_to_cpu(*min_uA);
+ max_uA = of_get_property(np, "regulator-max-microamp", NULL);
+ if (max_uA)
+ constraints->max_uA = be32_to_cpu(*max_uA);
+
+ /* Current change possible? */
+ if (constraints->min_uA != constraints->max_uA)
+ constraints->valid_ops_mask |= REGULATOR_CHANGE_CURRENT;
+
+ if (of_find_property(np, "regulator-boot-on", NULL))
+ constraints->boot_on = true;
+
+ if (of_find_property(np, "regulator-always-on", NULL))
+ constraints->always_on = true;
+ else /* status change should be possible if not always on. */
+ constraints->valid_ops_mask |= REGULATOR_CHANGE_STATUS;
+}
+
+/**
+ * of_get_regulator_init_data - extract regulator_init_data structure info
+ * @dev: device requesting for regulator_init_data
+ *
+ * Populates regulator_init_data structure by extracting data from device
+ * tree node, returns a pointer to the populated struture or NULL if memory
+ * alloc fails.
+ */
+struct regulator_init_data *of_get_regulator_init_data(struct device *dev,
+ struct device_node *node)
+{
+ struct regulator_init_data *init_data;
+
+ if (!node)
+ return NULL;
+
+ init_data = devm_kzalloc(dev, sizeof(*init_data), GFP_KERNEL);
+ if (!init_data)
+ return NULL; /* Out of memory? */
+
+ of_get_regulation_constraints(node, &init_data);
+ return init_data;
+}
+EXPORT_SYMBOL_GPL(of_get_regulator_init_data);
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/pcap-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/pcap-regulator.c
new file mode 100644
index 0000000..a5aab1b
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/pcap-regulator.c
@@ -0,0 +1,323 @@
+/*
+ * PCAP2 Regulator Driver
+ *
+ * Copyright (c) 2009 Daniel Ribeiro <drwyrm@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/ezx-pcap.h>
+
+static const u16 V1_table[] = {
+ 2775, 1275, 1600, 1725, 1825, 1925, 2075, 2275,
+};
+
+static const u16 V2_table[] = {
+ 2500, 2775,
+};
+
+static const u16 V3_table[] = {
+ 1075, 1275, 1550, 1725, 1876, 1950, 2075, 2275,
+};
+
+static const u16 V4_table[] = {
+ 1275, 1550, 1725, 1875, 1950, 2075, 2275, 2775,
+};
+
+static const u16 V5_table[] = {
+ 1875, 2275, 2475, 2775,
+};
+
+static const u16 V6_table[] = {
+ 2475, 2775,
+};
+
+static const u16 V7_table[] = {
+ 1875, 2775,
+};
+
+#define V8_table V4_table
+
+static const u16 V9_table[] = {
+ 1575, 1875, 2475, 2775,
+};
+
+static const u16 V10_table[] = {
+ 5000,
+};
+
+static const u16 VAUX1_table[] = {
+ 1875, 2475, 2775, 3000,
+};
+
+#define VAUX2_table VAUX1_table
+
+static const u16 VAUX3_table[] = {
+ 1200, 1200, 1200, 1200, 1400, 1600, 1800, 2000,
+ 2200, 2400, 2600, 2800, 3000, 3200, 3400, 3600,
+};
+
+static const u16 VAUX4_table[] = {
+ 1800, 1800, 3000, 5000,
+};
+
+static const u16 VSIM_table[] = {
+ 1875, 3000,
+};
+
+static const u16 VSIM2_table[] = {
+ 1875,
+};
+
+static const u16 VVIB_table[] = {
+ 1300, 1800, 2000, 3000,
+};
+
+static const u16 SW1_table[] = {
+ 900, 950, 1000, 1050, 1100, 1150, 1200, 1250,
+ 1300, 1350, 1400, 1450, 1500, 1600, 1875, 2250,
+};
+
+#define SW2_table SW1_table
+
+static const u16 SW3_table[] = {
+ 4000, 4500, 5000, 5500,
+};
+
+struct pcap_regulator {
+ const u8 reg;
+ const u8 en;
+ const u8 index;
+ const u8 stby;
+ const u8 lowpwr;
+ const u8 n_voltages;
+ const u16 *voltage_table;
+};
+
+#define NA 0xff
+
+#define VREG_INFO(_vreg, _reg, _en, _index, _stby, _lowpwr) \
+ [_vreg] = { \
+ .reg = _reg, \
+ .en = _en, \
+ .index = _index, \
+ .stby = _stby, \
+ .lowpwr = _lowpwr, \
+ .n_voltages = ARRAY_SIZE(_vreg##_table), \
+ .voltage_table = _vreg##_table, \
+ }
+
+static struct pcap_regulator vreg_table[] = {
+ VREG_INFO(V1, PCAP_REG_VREG1, 1, 2, 18, 0),
+ VREG_INFO(V2, PCAP_REG_VREG1, 5, 6, 19, 22),
+ VREG_INFO(V3, PCAP_REG_VREG1, 7, 8, 20, 23),
+ VREG_INFO(V4, PCAP_REG_VREG1, 11, 12, 21, 24),
+ /* V5 STBY and LOWPWR are on PCAP_REG_VREG2 */
+ VREG_INFO(V5, PCAP_REG_VREG1, 15, 16, 12, 19),
+
+ VREG_INFO(V6, PCAP_REG_VREG2, 1, 2, 14, 20),
+ VREG_INFO(V7, PCAP_REG_VREG2, 3, 4, 15, 21),
+ VREG_INFO(V8, PCAP_REG_VREG2, 5, 6, 16, 22),
+ VREG_INFO(V9, PCAP_REG_VREG2, 9, 10, 17, 23),
+ VREG_INFO(V10, PCAP_REG_VREG2, 10, NA, 18, 24),
+
+ VREG_INFO(VAUX1, PCAP_REG_AUXVREG, 1, 2, 22, 23),
+ /* VAUX2 ... VSIM2 STBY and LOWPWR are on PCAP_REG_LOWPWR */
+ VREG_INFO(VAUX2, PCAP_REG_AUXVREG, 4, 5, 0, 1),
+ VREG_INFO(VAUX3, PCAP_REG_AUXVREG, 7, 8, 2, 3),
+ VREG_INFO(VAUX4, PCAP_REG_AUXVREG, 12, 13, 4, 5),
+ VREG_INFO(VSIM, PCAP_REG_AUXVREG, 17, 18, NA, 6),
+ VREG_INFO(VSIM2, PCAP_REG_AUXVREG, 16, NA, NA, 7),
+ VREG_INFO(VVIB, PCAP_REG_AUXVREG, 19, 20, NA, NA),
+
+ VREG_INFO(SW1, PCAP_REG_SWCTRL, 1, 2, NA, NA),
+ VREG_INFO(SW2, PCAP_REG_SWCTRL, 6, 7, NA, NA),
+ /* SW3 STBY is on PCAP_REG_AUXVREG */
+ VREG_INFO(SW3, PCAP_REG_SWCTRL, 11, 12, 24, NA),
+
+ /* SWxS used to control SWx voltage on standby */
+/* VREG_INFO(SW1S, PCAP_REG_LOWPWR, NA, 12, NA, NA),
+ VREG_INFO(SW2S, PCAP_REG_LOWPWR, NA, 20, NA, NA), */
+};
+
+static int pcap_regulator_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV,
+ unsigned *selector)
+{
+ struct pcap_regulator *vreg = &vreg_table[rdev_get_id(rdev)];
+ void *pcap = rdev_get_drvdata(rdev);
+ int uV;
+ u8 i;
+
+ /* the regulator doesn't support voltage switching */
+ if (vreg->n_voltages == 1)
+ return -EINVAL;
+
+ for (i = 0; i < vreg->n_voltages; i++) {
+ /* For V1 the first is not the best match */
+ if (i == 0 && rdev_get_id(rdev) == V1)
+ i = 1;
+ else if (i + 1 == vreg->n_voltages && rdev_get_id(rdev) == V1)
+ i = 0;
+
+ uV = vreg->voltage_table[i] * 1000;
+ if (min_uV <= uV && uV <= max_uV) {
+ *selector = i;
+ return ezx_pcap_set_bits(pcap, vreg->reg,
+ (vreg->n_voltages - 1) << vreg->index,
+ i << vreg->index);
+ }
+
+ if (i == 0 && rdev_get_id(rdev) == V1)
+ i = vreg->n_voltages - 1;
+ }
+
+ /* the requested voltage range is not supported by this regulator */
+ return -EINVAL;
+}
+
+static int pcap_regulator_get_voltage(struct regulator_dev *rdev)
+{
+ struct pcap_regulator *vreg = &vreg_table[rdev_get_id(rdev)];
+ void *pcap = rdev_get_drvdata(rdev);
+ u32 tmp;
+ int mV;
+
+ if (vreg->n_voltages == 1)
+ return vreg->voltage_table[0] * 1000;
+
+ ezx_pcap_read(pcap, vreg->reg, &tmp);
+ tmp = ((tmp >> vreg->index) & (vreg->n_voltages - 1));
+ mV = vreg->voltage_table[tmp];
+
+ return mV * 1000;
+}
+
+static int pcap_regulator_enable(struct regulator_dev *rdev)
+{
+ struct pcap_regulator *vreg = &vreg_table[rdev_get_id(rdev)];
+ void *pcap = rdev_get_drvdata(rdev);
+
+ if (vreg->en == NA)
+ return -EINVAL;
+
+ return ezx_pcap_set_bits(pcap, vreg->reg, 1 << vreg->en, 1 << vreg->en);
+}
+
+static int pcap_regulator_disable(struct regulator_dev *rdev)
+{
+ struct pcap_regulator *vreg = &vreg_table[rdev_get_id(rdev)];
+ void *pcap = rdev_get_drvdata(rdev);
+
+ if (vreg->en == NA)
+ return -EINVAL;
+
+ return ezx_pcap_set_bits(pcap, vreg->reg, 1 << vreg->en, 0);
+}
+
+static int pcap_regulator_is_enabled(struct regulator_dev *rdev)
+{
+ struct pcap_regulator *vreg = &vreg_table[rdev_get_id(rdev)];
+ void *pcap = rdev_get_drvdata(rdev);
+ u32 tmp;
+
+ if (vreg->en == NA)
+ return -EINVAL;
+
+ ezx_pcap_read(pcap, vreg->reg, &tmp);
+ return (tmp >> vreg->en) & 1;
+}
+
+static int pcap_regulator_list_voltage(struct regulator_dev *rdev,
+ unsigned int index)
+{
+ struct pcap_regulator *vreg = &vreg_table[rdev_get_id(rdev)];
+
+ return vreg->voltage_table[index] * 1000;
+}
+
+static struct regulator_ops pcap_regulator_ops = {
+ .list_voltage = pcap_regulator_list_voltage,
+ .set_voltage = pcap_regulator_set_voltage,
+ .get_voltage = pcap_regulator_get_voltage,
+ .enable = pcap_regulator_enable,
+ .disable = pcap_regulator_disable,
+ .is_enabled = pcap_regulator_is_enabled,
+};
+
+#define VREG(_vreg) \
+ [_vreg] = { \
+ .name = #_vreg, \
+ .id = _vreg, \
+ .n_voltages = ARRAY_SIZE(_vreg##_table), \
+ .ops = &pcap_regulator_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ }
+
+static struct regulator_desc pcap_regulators[] = {
+ VREG(V1), VREG(V2), VREG(V3), VREG(V4), VREG(V5), VREG(V6), VREG(V7),
+ VREG(V8), VREG(V9), VREG(V10), VREG(VAUX1), VREG(VAUX2), VREG(VAUX3),
+ VREG(VAUX4), VREG(VSIM), VREG(VSIM2), VREG(VVIB), VREG(SW1), VREG(SW2),
+};
+
+static int __devinit pcap_regulator_probe(struct platform_device *pdev)
+{
+ struct regulator_dev *rdev;
+ void *pcap = dev_get_drvdata(pdev->dev.parent);
+
+ rdev = regulator_register(&pcap_regulators[pdev->id], &pdev->dev,
+ pdev->dev.platform_data, pcap, NULL);
+ if (IS_ERR(rdev))
+ return PTR_ERR(rdev);
+
+ platform_set_drvdata(pdev, rdev);
+
+ return 0;
+}
+
+static int __devexit pcap_regulator_remove(struct platform_device *pdev)
+{
+ struct regulator_dev *rdev = platform_get_drvdata(pdev);
+
+ regulator_unregister(rdev);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver pcap_regulator_driver = {
+ .driver = {
+ .name = "pcap-regulator",
+ .owner = THIS_MODULE,
+ },
+ .probe = pcap_regulator_probe,
+ .remove = __devexit_p(pcap_regulator_remove),
+};
+
+static int __init pcap_regulator_init(void)
+{
+ return platform_driver_register(&pcap_regulator_driver);
+}
+
+static void __exit pcap_regulator_exit(void)
+{
+ platform_driver_unregister(&pcap_regulator_driver);
+}
+
+subsys_initcall(pcap_regulator_init);
+module_exit(pcap_regulator_exit);
+
+MODULE_AUTHOR("Daniel Ribeiro <drwyrm@gmail.com>");
+MODULE_DESCRIPTION("PCAP2 Regulator Driver");
+MODULE_LICENSE("GPL");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/pcf50633-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/pcf50633-regulator.c
new file mode 100644
index 0000000..6db46c6
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/pcf50633-regulator.c
@@ -0,0 +1,367 @@
+/* NXP PCF50633 PMIC Driver
+ *
+ * (C) 2006-2008 by Openmoko, Inc.
+ * Author: Balaji Rao <balajirrao@openmoko.org>
+ * All rights reserved.
+ *
+ * Broken down from monstrous PCF50633 driver mainly by
+ * Harald Welte and Andy Green and Werner Almesberger
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+
+#include <linux/mfd/pcf50633/core.h>
+#include <linux/mfd/pcf50633/pmic.h>
+
+#define PCF50633_REGULATOR(_name, _id, _n) \
+ { \
+ .name = _name, \
+ .id = _id, \
+ .ops = &pcf50633_regulator_ops, \
+ .n_voltages = _n, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ }
+
+static const u8 pcf50633_regulator_registers[PCF50633_NUM_REGULATORS] = {
+ [PCF50633_REGULATOR_AUTO] = PCF50633_REG_AUTOOUT,
+ [PCF50633_REGULATOR_DOWN1] = PCF50633_REG_DOWN1OUT,
+ [PCF50633_REGULATOR_DOWN2] = PCF50633_REG_DOWN2OUT,
+ [PCF50633_REGULATOR_MEMLDO] = PCF50633_REG_MEMLDOOUT,
+ [PCF50633_REGULATOR_LDO1] = PCF50633_REG_LDO1OUT,
+ [PCF50633_REGULATOR_LDO2] = PCF50633_REG_LDO2OUT,
+ [PCF50633_REGULATOR_LDO3] = PCF50633_REG_LDO3OUT,
+ [PCF50633_REGULATOR_LDO4] = PCF50633_REG_LDO4OUT,
+ [PCF50633_REGULATOR_LDO5] = PCF50633_REG_LDO5OUT,
+ [PCF50633_REGULATOR_LDO6] = PCF50633_REG_LDO6OUT,
+ [PCF50633_REGULATOR_HCLDO] = PCF50633_REG_HCLDOOUT,
+};
+
+/* Bits from voltage value */
+static u8 auto_voltage_bits(unsigned int millivolts)
+{
+ if (millivolts < 1800)
+ return 0;
+ if (millivolts > 3800)
+ return 0xff;
+
+ millivolts -= 625;
+
+ return millivolts / 25;
+}
+
+static u8 down_voltage_bits(unsigned int millivolts)
+{
+ if (millivolts < 625)
+ return 0;
+ else if (millivolts > 3000)
+ return 0xff;
+
+ millivolts -= 625;
+
+ return millivolts / 25;
+}
+
+static u8 ldo_voltage_bits(unsigned int millivolts)
+{
+ if (millivolts < 900)
+ return 0;
+ else if (millivolts > 3600)
+ return 0x1f;
+
+ millivolts -= 900;
+ return millivolts / 100;
+}
+
+/* Obtain voltage value from bits */
+static unsigned int auto_voltage_value(u8 bits)
+{
+ if (bits < 0x2f)
+ return 0;
+
+ return 625 + (bits * 25);
+}
+
+
+static unsigned int down_voltage_value(u8 bits)
+{
+ return 625 + (bits * 25);
+}
+
+
+static unsigned int ldo_voltage_value(u8 bits)
+{
+ bits &= 0x1f;
+
+ return 900 + (bits * 100);
+}
+
+static int pcf50633_regulator_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV,
+ unsigned *selector)
+{
+ struct pcf50633 *pcf;
+ int regulator_id, millivolts;
+ u8 volt_bits, regnr;
+
+ pcf = rdev_get_drvdata(rdev);
+
+ regulator_id = rdev_get_id(rdev);
+ if (regulator_id >= PCF50633_NUM_REGULATORS)
+ return -EINVAL;
+
+ millivolts = min_uV / 1000;
+
+ regnr = pcf50633_regulator_registers[regulator_id];
+
+ switch (regulator_id) {
+ case PCF50633_REGULATOR_AUTO:
+ volt_bits = auto_voltage_bits(millivolts);
+ break;
+ case PCF50633_REGULATOR_DOWN1:
+ volt_bits = down_voltage_bits(millivolts);
+ break;
+ case PCF50633_REGULATOR_DOWN2:
+ volt_bits = down_voltage_bits(millivolts);
+ break;
+ case PCF50633_REGULATOR_LDO1:
+ case PCF50633_REGULATOR_LDO2:
+ case PCF50633_REGULATOR_LDO3:
+ case PCF50633_REGULATOR_LDO4:
+ case PCF50633_REGULATOR_LDO5:
+ case PCF50633_REGULATOR_LDO6:
+ case PCF50633_REGULATOR_HCLDO:
+ case PCF50633_REGULATOR_MEMLDO:
+ volt_bits = ldo_voltage_bits(millivolts);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ *selector = volt_bits;
+
+ return pcf50633_reg_write(pcf, regnr, volt_bits);
+}
+
+static int pcf50633_regulator_voltage_value(enum pcf50633_regulator_id id,
+ u8 bits)
+{
+ int millivolts;
+
+ switch (id) {
+ case PCF50633_REGULATOR_AUTO:
+ millivolts = auto_voltage_value(bits);
+ break;
+ case PCF50633_REGULATOR_DOWN1:
+ millivolts = down_voltage_value(bits);
+ break;
+ case PCF50633_REGULATOR_DOWN2:
+ millivolts = down_voltage_value(bits);
+ break;
+ case PCF50633_REGULATOR_LDO1:
+ case PCF50633_REGULATOR_LDO2:
+ case PCF50633_REGULATOR_LDO3:
+ case PCF50633_REGULATOR_LDO4:
+ case PCF50633_REGULATOR_LDO5:
+ case PCF50633_REGULATOR_LDO6:
+ case PCF50633_REGULATOR_HCLDO:
+ case PCF50633_REGULATOR_MEMLDO:
+ millivolts = ldo_voltage_value(bits);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return millivolts * 1000;
+}
+
+static int pcf50633_regulator_get_voltage(struct regulator_dev *rdev)
+{
+ struct pcf50633 *pcf;
+ int regulator_id;
+ u8 volt_bits, regnr;
+
+ pcf = rdev_get_drvdata(rdev);
+
+ regulator_id = rdev_get_id(rdev);
+ if (regulator_id >= PCF50633_NUM_REGULATORS)
+ return -EINVAL;
+
+ regnr = pcf50633_regulator_registers[regulator_id];
+
+ volt_bits = pcf50633_reg_read(pcf, regnr);
+
+ return pcf50633_regulator_voltage_value(regulator_id, volt_bits);
+}
+
+static int pcf50633_regulator_list_voltage(struct regulator_dev *rdev,
+ unsigned int index)
+{
+ struct pcf50633 *pcf;
+ int regulator_id;
+
+ pcf = rdev_get_drvdata(rdev);
+
+ regulator_id = rdev_get_id(rdev);
+
+ switch (regulator_id) {
+ case PCF50633_REGULATOR_AUTO:
+ index += 0x2f;
+ break;
+ default:
+ break;
+ }
+
+ return pcf50633_regulator_voltage_value(regulator_id, index);
+}
+
+static int pcf50633_regulator_enable(struct regulator_dev *rdev)
+{
+ struct pcf50633 *pcf = rdev_get_drvdata(rdev);
+ int regulator_id;
+ u8 regnr;
+
+ regulator_id = rdev_get_id(rdev);
+ if (regulator_id >= PCF50633_NUM_REGULATORS)
+ return -EINVAL;
+
+ /* The *ENA register is always one after the *OUT register */
+ regnr = pcf50633_regulator_registers[regulator_id] + 1;
+
+ return pcf50633_reg_set_bit_mask(pcf, regnr, PCF50633_REGULATOR_ON,
+ PCF50633_REGULATOR_ON);
+}
+
+static int pcf50633_regulator_disable(struct regulator_dev *rdev)
+{
+ struct pcf50633 *pcf = rdev_get_drvdata(rdev);
+ int regulator_id;
+ u8 regnr;
+
+ regulator_id = rdev_get_id(rdev);
+ if (regulator_id >= PCF50633_NUM_REGULATORS)
+ return -EINVAL;
+
+ /* the *ENA register is always one after the *OUT register */
+ regnr = pcf50633_regulator_registers[regulator_id] + 1;
+
+ return pcf50633_reg_set_bit_mask(pcf, regnr,
+ PCF50633_REGULATOR_ON, 0);
+}
+
+static int pcf50633_regulator_is_enabled(struct regulator_dev *rdev)
+{
+ struct pcf50633 *pcf = rdev_get_drvdata(rdev);
+ int regulator_id = rdev_get_id(rdev);
+ u8 regnr;
+
+ regulator_id = rdev_get_id(rdev);
+ if (regulator_id >= PCF50633_NUM_REGULATORS)
+ return -EINVAL;
+
+ /* the *ENA register is always one after the *OUT register */
+ regnr = pcf50633_regulator_registers[regulator_id] + 1;
+
+ return pcf50633_reg_read(pcf, regnr) & PCF50633_REGULATOR_ON;
+}
+
+static struct regulator_ops pcf50633_regulator_ops = {
+ .set_voltage = pcf50633_regulator_set_voltage,
+ .get_voltage = pcf50633_regulator_get_voltage,
+ .list_voltage = pcf50633_regulator_list_voltage,
+ .enable = pcf50633_regulator_enable,
+ .disable = pcf50633_regulator_disable,
+ .is_enabled = pcf50633_regulator_is_enabled,
+};
+
+static struct regulator_desc regulators[] = {
+ [PCF50633_REGULATOR_AUTO] =
+ PCF50633_REGULATOR("auto", PCF50633_REGULATOR_AUTO, 81),
+ [PCF50633_REGULATOR_DOWN1] =
+ PCF50633_REGULATOR("down1", PCF50633_REGULATOR_DOWN1, 96),
+ [PCF50633_REGULATOR_DOWN2] =
+ PCF50633_REGULATOR("down2", PCF50633_REGULATOR_DOWN2, 96),
+ [PCF50633_REGULATOR_LDO1] =
+ PCF50633_REGULATOR("ldo1", PCF50633_REGULATOR_LDO1, 28),
+ [PCF50633_REGULATOR_LDO2] =
+ PCF50633_REGULATOR("ldo2", PCF50633_REGULATOR_LDO2, 28),
+ [PCF50633_REGULATOR_LDO3] =
+ PCF50633_REGULATOR("ldo3", PCF50633_REGULATOR_LDO3, 28),
+ [PCF50633_REGULATOR_LDO4] =
+ PCF50633_REGULATOR("ldo4", PCF50633_REGULATOR_LDO4, 28),
+ [PCF50633_REGULATOR_LDO5] =
+ PCF50633_REGULATOR("ldo5", PCF50633_REGULATOR_LDO5, 28),
+ [PCF50633_REGULATOR_LDO6] =
+ PCF50633_REGULATOR("ldo6", PCF50633_REGULATOR_LDO6, 28),
+ [PCF50633_REGULATOR_HCLDO] =
+ PCF50633_REGULATOR("hcldo", PCF50633_REGULATOR_HCLDO, 28),
+ [PCF50633_REGULATOR_MEMLDO] =
+ PCF50633_REGULATOR("memldo", PCF50633_REGULATOR_MEMLDO, 28),
+};
+
+static int __devinit pcf50633_regulator_probe(struct platform_device *pdev)
+{
+ struct regulator_dev *rdev;
+ struct pcf50633 *pcf;
+
+ /* Already set by core driver */
+ pcf = dev_to_pcf50633(pdev->dev.parent);
+
+ rdev = regulator_register(®ulators[pdev->id], &pdev->dev,
+ pdev->dev.platform_data, pcf, NULL);
+ if (IS_ERR(rdev))
+ return PTR_ERR(rdev);
+
+ platform_set_drvdata(pdev, rdev);
+
+ if (pcf->pdata->regulator_registered)
+ pcf->pdata->regulator_registered(pcf, pdev->id);
+
+ return 0;
+}
+
+static int __devexit pcf50633_regulator_remove(struct platform_device *pdev)
+{
+ struct regulator_dev *rdev = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+ regulator_unregister(rdev);
+
+ return 0;
+}
+
+static struct platform_driver pcf50633_regulator_driver = {
+ .driver = {
+ .name = "pcf50633-regltr",
+ },
+ .probe = pcf50633_regulator_probe,
+ .remove = __devexit_p(pcf50633_regulator_remove),
+};
+
+static int __init pcf50633_regulator_init(void)
+{
+ return platform_driver_register(&pcf50633_regulator_driver);
+}
+subsys_initcall(pcf50633_regulator_init);
+
+static void __exit pcf50633_regulator_exit(void)
+{
+ platform_driver_unregister(&pcf50633_regulator_driver);
+}
+module_exit(pcf50633_regulator_exit);
+
+MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
+MODULE_DESCRIPTION("PCF50633 regulator driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pcf50633-regulator");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/s5m8767.c b/ap/os/linux/linux-3.4.x/drivers/regulator/s5m8767.c
new file mode 100644
index 0000000..4ca2db0
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/s5m8767.c
@@ -0,0 +1,790 @@
+/*
+ * s5m8767.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd
+ * http://www.samsung.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/bug.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/s5m87xx/s5m-core.h>
+#include <linux/mfd/s5m87xx/s5m-pmic.h>
+
+struct s5m8767_info {
+ struct device *dev;
+ struct s5m87xx_dev *iodev;
+ int num_regulators;
+ struct regulator_dev **rdev;
+
+ int ramp_delay;
+ bool buck2_ramp;
+ bool buck3_ramp;
+ bool buck4_ramp;
+
+ bool buck2_gpiodvs;
+ bool buck3_gpiodvs;
+ bool buck4_gpiodvs;
+ u8 buck2_vol[8];
+ u8 buck3_vol[8];
+ u8 buck4_vol[8];
+ int buck_gpios[3];
+ int buck_gpioindex;
+};
+
+struct s5m_voltage_desc {
+ int max;
+ int min;
+ int step;
+};
+
+static const struct s5m_voltage_desc buck_voltage_val1 = {
+ .max = 2225000,
+ .min = 650000,
+ .step = 6250,
+};
+
+static const struct s5m_voltage_desc buck_voltage_val2 = {
+ .max = 1600000,
+ .min = 600000,
+ .step = 6250,
+};
+
+static const struct s5m_voltage_desc buck_voltage_val3 = {
+ .max = 3000000,
+ .min = 750000,
+ .step = 12500,
+};
+
+static const struct s5m_voltage_desc ldo_voltage_val1 = {
+ .max = 3950000,
+ .min = 800000,
+ .step = 50000,
+};
+
+static const struct s5m_voltage_desc ldo_voltage_val2 = {
+ .max = 2375000,
+ .min = 800000,
+ .step = 25000,
+};
+
+static const struct s5m_voltage_desc *reg_voltage_map[] = {
+ [S5M8767_LDO1] = &ldo_voltage_val2,
+ [S5M8767_LDO2] = &ldo_voltage_val2,
+ [S5M8767_LDO3] = &ldo_voltage_val1,
+ [S5M8767_LDO4] = &ldo_voltage_val1,
+ [S5M8767_LDO5] = &ldo_voltage_val1,
+ [S5M8767_LDO6] = &ldo_voltage_val2,
+ [S5M8767_LDO7] = &ldo_voltage_val2,
+ [S5M8767_LDO8] = &ldo_voltage_val2,
+ [S5M8767_LDO9] = &ldo_voltage_val1,
+ [S5M8767_LDO10] = &ldo_voltage_val1,
+ [S5M8767_LDO11] = &ldo_voltage_val1,
+ [S5M8767_LDO12] = &ldo_voltage_val1,
+ [S5M8767_LDO13] = &ldo_voltage_val1,
+ [S5M8767_LDO14] = &ldo_voltage_val1,
+ [S5M8767_LDO15] = &ldo_voltage_val2,
+ [S5M8767_LDO16] = &ldo_voltage_val1,
+ [S5M8767_LDO17] = &ldo_voltage_val1,
+ [S5M8767_LDO18] = &ldo_voltage_val1,
+ [S5M8767_LDO19] = &ldo_voltage_val1,
+ [S5M8767_LDO20] = &ldo_voltage_val1,
+ [S5M8767_LDO21] = &ldo_voltage_val1,
+ [S5M8767_LDO22] = &ldo_voltage_val1,
+ [S5M8767_LDO23] = &ldo_voltage_val1,
+ [S5M8767_LDO24] = &ldo_voltage_val1,
+ [S5M8767_LDO25] = &ldo_voltage_val1,
+ [S5M8767_LDO26] = &ldo_voltage_val1,
+ [S5M8767_LDO27] = &ldo_voltage_val1,
+ [S5M8767_LDO28] = &ldo_voltage_val1,
+ [S5M8767_BUCK1] = &buck_voltage_val1,
+ [S5M8767_BUCK2] = &buck_voltage_val2,
+ [S5M8767_BUCK3] = &buck_voltage_val2,
+ [S5M8767_BUCK4] = &buck_voltage_val2,
+ [S5M8767_BUCK5] = &buck_voltage_val1,
+ [S5M8767_BUCK6] = &buck_voltage_val1,
+ [S5M8767_BUCK7] = NULL,
+ [S5M8767_BUCK8] = NULL,
+ [S5M8767_BUCK9] = &buck_voltage_val3,
+};
+
+static int s5m8767_list_voltage(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ const struct s5m_voltage_desc *desc;
+ int reg_id = rdev_get_id(rdev);
+ int val;
+
+ if (reg_id >= ARRAY_SIZE(reg_voltage_map) || reg_id < 0)
+ return -EINVAL;
+
+ desc = reg_voltage_map[reg_id];
+ if (desc == NULL)
+ return -EINVAL;
+
+ val = desc->min + desc->step * selector;
+ if (val > desc->max)
+ return -EINVAL;
+
+ return val;
+}
+
+static int s5m8767_get_register(struct regulator_dev *rdev, int *reg)
+{
+ int reg_id = rdev_get_id(rdev);
+
+ switch (reg_id) {
+ case S5M8767_LDO1 ... S5M8767_LDO2:
+ *reg = S5M8767_REG_LDO1CTRL + (reg_id - S5M8767_LDO1);
+ break;
+ case S5M8767_LDO3 ... S5M8767_LDO28:
+ *reg = S5M8767_REG_LDO3CTRL + (reg_id - S5M8767_LDO3);
+ break;
+ case S5M8767_BUCK1:
+ *reg = S5M8767_REG_BUCK1CTRL1;
+ break;
+ case S5M8767_BUCK2 ... S5M8767_BUCK4:
+ *reg = S5M8767_REG_BUCK2CTRL + (reg_id - S5M8767_BUCK2) * 9;
+ break;
+ case S5M8767_BUCK5:
+ *reg = S5M8767_REG_BUCK5CTRL1;
+ break;
+ case S5M8767_BUCK6 ... S5M8767_BUCK9:
+ *reg = S5M8767_REG_BUCK6CTRL1 + (reg_id - S5M8767_BUCK6) * 2;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int s5m8767_reg_is_enabled(struct regulator_dev *rdev)
+{
+ struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
+ int ret, reg;
+ int mask = 0xc0, pattern = 0xc0;
+ u8 val;
+
+ ret = s5m8767_get_register(rdev, ®);
+ if (ret == -EINVAL)
+ return 1;
+ else if (ret)
+ return ret;
+
+ ret = s5m_reg_read(s5m8767->iodev, reg, &val);
+ if (ret)
+ return ret;
+
+ return (val & mask) == pattern;
+}
+
+static int s5m8767_reg_enable(struct regulator_dev *rdev)
+{
+ struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
+ int ret, reg;
+ int mask = 0xc0, pattern = 0xc0;
+
+ ret = s5m8767_get_register(rdev, ®);
+ if (ret)
+ return ret;
+
+ return s5m_reg_update(s5m8767->iodev, reg, pattern, mask);
+}
+
+static int s5m8767_reg_disable(struct regulator_dev *rdev)
+{
+ struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
+ int ret, reg;
+ int mask = 0xc0, pattern = 0xc0;
+
+ ret = s5m8767_get_register(rdev, ®);
+ if (ret)
+ return ret;
+
+ return s5m_reg_update(s5m8767->iodev, reg, ~pattern, mask);
+}
+
+static int s5m8767_get_voltage_register(struct regulator_dev *rdev, int *_reg)
+{
+ struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
+ int reg_id = rdev_get_id(rdev);
+ int reg;
+
+ switch (reg_id) {
+ case S5M8767_LDO1 ... S5M8767_LDO2:
+ reg = S5M8767_REG_LDO1CTRL + (reg_id - S5M8767_LDO1);
+ break;
+ case S5M8767_LDO3 ... S5M8767_LDO28:
+ reg = S5M8767_REG_LDO3CTRL + (reg_id - S5M8767_LDO3);
+ break;
+ case S5M8767_BUCK1:
+ reg = S5M8767_REG_BUCK1CTRL2;
+ break;
+ case S5M8767_BUCK2:
+ reg = S5M8767_REG_BUCK2DVS1;
+ if (s5m8767->buck2_gpiodvs)
+ reg += s5m8767->buck_gpioindex;
+ break;
+ case S5M8767_BUCK3:
+ reg = S5M8767_REG_BUCK3DVS1;
+ if (s5m8767->buck3_gpiodvs)
+ reg += s5m8767->buck_gpioindex;
+ break;
+ case S5M8767_BUCK4:
+ reg = S5M8767_REG_BUCK4DVS1;
+ if (s5m8767->buck4_gpiodvs)
+ reg += s5m8767->buck_gpioindex;
+ break;
+ case S5M8767_BUCK5:
+ reg = S5M8767_REG_BUCK5CTRL2;
+ break;
+ case S5M8767_BUCK6 ... S5M8767_BUCK9:
+ reg = S5M8767_REG_BUCK6CTRL2 + (reg_id - S5M8767_BUCK6) * 2;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ *_reg = reg;
+
+ return 0;
+}
+
+static int s5m8767_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
+ int reg, mask, ret;
+ int reg_id = rdev_get_id(rdev);
+ u8 val;
+
+ ret = s5m8767_get_voltage_register(rdev, ®);
+ if (ret)
+ return ret;
+
+ mask = (reg_id < S5M8767_BUCK1) ? 0x3f : 0xff;
+
+ ret = s5m_reg_read(s5m8767->iodev, reg, &val);
+ if (ret)
+ return ret;
+
+ val &= mask;
+
+ return val;
+}
+
+static int s5m8767_convert_voltage_to_sel(
+ const struct s5m_voltage_desc *desc,
+ int min_vol, int max_vol)
+{
+ int selector = 0;
+
+ if (desc == NULL)
+ return -EINVAL;
+
+ if (max_vol < desc->min || min_vol > desc->max)
+ return -EINVAL;
+
+ selector = (min_vol - desc->min) / desc->step;
+
+ if (desc->min + desc->step * selector > max_vol)
+ return -EINVAL;
+
+ return selector;
+}
+
+static int s5m8767_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
+ const struct s5m_voltage_desc *desc;
+ int reg_id = rdev_get_id(rdev);
+ int sel, reg, mask, ret;
+ u8 val;
+
+ switch (reg_id) {
+ case S5M8767_LDO1 ... S5M8767_LDO28:
+ mask = 0x3f;
+ break;
+ case S5M8767_BUCK1 ... S5M8767_BUCK6:
+ mask = 0xff;
+ break;
+ case S5M8767_BUCK7 ... S5M8767_BUCK8:
+ return -EINVAL;
+ case S5M8767_BUCK9:
+ mask = 0xff;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ desc = reg_voltage_map[reg_id];
+
+ sel = s5m8767_convert_voltage_to_sel(desc, min_uV, max_uV);
+ if (sel < 0)
+ return sel;
+
+ ret = s5m8767_get_voltage_register(rdev, ®);
+ if (ret)
+ return ret;
+
+ s5m_reg_read(s5m8767->iodev, reg, &val);
+ val &= ~mask;
+ val |= sel;
+
+ ret = s5m_reg_write(s5m8767->iodev, reg, val);
+ *selector = sel;
+
+ return ret;
+}
+
+static inline void s5m8767_set_high(struct s5m8767_info *s5m8767)
+{
+ int temp_index = s5m8767->buck_gpioindex;
+
+ gpio_set_value(s5m8767->buck_gpios[0], (temp_index >> 2) & 0x1);
+ gpio_set_value(s5m8767->buck_gpios[1], (temp_index >> 1) & 0x1);
+ gpio_set_value(s5m8767->buck_gpios[2], temp_index & 0x1);
+}
+
+static inline void s5m8767_set_low(struct s5m8767_info *s5m8767)
+{
+ int temp_index = s5m8767->buck_gpioindex;
+
+ gpio_set_value(s5m8767->buck_gpios[2], temp_index & 0x1);
+ gpio_set_value(s5m8767->buck_gpios[1], (temp_index >> 1) & 0x1);
+ gpio_set_value(s5m8767->buck_gpios[0], (temp_index >> 2) & 0x1);
+}
+
+static int s5m8767_set_voltage_buck(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
+ int reg_id = rdev_get_id(rdev);
+ const struct s5m_voltage_desc *desc;
+ int new_val, old_val, i = 0;
+
+ if (reg_id < S5M8767_BUCK1 || reg_id > S5M8767_BUCK6)
+ return -EINVAL;
+
+ switch (reg_id) {
+ case S5M8767_BUCK1:
+ return s5m8767_set_voltage(rdev, min_uV, max_uV, selector);
+ case S5M8767_BUCK2 ... S5M8767_BUCK4:
+ break;
+ case S5M8767_BUCK5 ... S5M8767_BUCK6:
+ return s5m8767_set_voltage(rdev, min_uV, max_uV, selector);
+ case S5M8767_BUCK9:
+ return s5m8767_set_voltage(rdev, min_uV, max_uV, selector);
+ }
+
+ desc = reg_voltage_map[reg_id];
+ new_val = s5m8767_convert_voltage_to_sel(desc, min_uV, max_uV);
+ if (new_val < 0)
+ return new_val;
+
+ switch (reg_id) {
+ case S5M8767_BUCK2:
+ if (s5m8767->buck2_gpiodvs) {
+ while (s5m8767->buck2_vol[i] != new_val)
+ i++;
+ } else
+ return s5m8767_set_voltage(rdev, min_uV,
+ max_uV, selector);
+ break;
+ case S5M8767_BUCK3:
+ if (s5m8767->buck3_gpiodvs) {
+ while (s5m8767->buck3_vol[i] != new_val)
+ i++;
+ } else
+ return s5m8767_set_voltage(rdev, min_uV,
+ max_uV, selector);
+ break;
+ case S5M8767_BUCK4:
+ if (s5m8767->buck3_gpiodvs) {
+ while (s5m8767->buck4_vol[i] != new_val)
+ i++;
+ } else
+ return s5m8767_set_voltage(rdev, min_uV,
+ max_uV, selector);
+ break;
+ }
+
+ old_val = s5m8767->buck_gpioindex;
+ s5m8767->buck_gpioindex = i;
+
+ if (i > old_val)
+ s5m8767_set_high(s5m8767);
+ else
+ s5m8767_set_low(s5m8767);
+
+ *selector = new_val;
+ return 0;
+}
+
+static int s5m8767_set_voltage_time_sel(struct regulator_dev *rdev,
+ unsigned int old_sel,
+ unsigned int new_sel)
+{
+ struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
+ const struct s5m_voltage_desc *desc;
+ int reg_id = rdev_get_id(rdev);
+
+ desc = reg_voltage_map[reg_id];
+
+ if (old_sel < new_sel)
+ return DIV_ROUND_UP(desc->step * (new_sel - old_sel),
+ s5m8767->ramp_delay * 1000);
+ return 0;
+}
+
+static struct regulator_ops s5m8767_ldo_ops = {
+ .list_voltage = s5m8767_list_voltage,
+ .is_enabled = s5m8767_reg_is_enabled,
+ .enable = s5m8767_reg_enable,
+ .disable = s5m8767_reg_disable,
+ .get_voltage_sel = s5m8767_get_voltage_sel,
+ .set_voltage = s5m8767_set_voltage,
+ .set_voltage_time_sel = s5m8767_set_voltage_time_sel,
+};
+
+static struct regulator_ops s5m8767_buck_ops = {
+ .list_voltage = s5m8767_list_voltage,
+ .is_enabled = s5m8767_reg_is_enabled,
+ .enable = s5m8767_reg_enable,
+ .disable = s5m8767_reg_disable,
+ .get_voltage_sel = s5m8767_get_voltage_sel,
+ .set_voltage = s5m8767_set_voltage_buck,
+ .set_voltage_time_sel = s5m8767_set_voltage_time_sel,
+};
+
+#define regulator_desc_ldo(num) { \
+ .name = "LDO"#num, \
+ .id = S5M8767_LDO##num, \
+ .ops = &s5m8767_ldo_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+}
+#define regulator_desc_buck(num) { \
+ .name = "BUCK"#num, \
+ .id = S5M8767_BUCK##num, \
+ .ops = &s5m8767_buck_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+}
+
+static struct regulator_desc regulators[] = {
+ regulator_desc_ldo(1),
+ regulator_desc_ldo(2),
+ regulator_desc_ldo(3),
+ regulator_desc_ldo(4),
+ regulator_desc_ldo(5),
+ regulator_desc_ldo(6),
+ regulator_desc_ldo(7),
+ regulator_desc_ldo(8),
+ regulator_desc_ldo(9),
+ regulator_desc_ldo(10),
+ regulator_desc_ldo(11),
+ regulator_desc_ldo(12),
+ regulator_desc_ldo(13),
+ regulator_desc_ldo(14),
+ regulator_desc_ldo(15),
+ regulator_desc_ldo(16),
+ regulator_desc_ldo(17),
+ regulator_desc_ldo(18),
+ regulator_desc_ldo(19),
+ regulator_desc_ldo(20),
+ regulator_desc_ldo(21),
+ regulator_desc_ldo(22),
+ regulator_desc_ldo(23),
+ regulator_desc_ldo(24),
+ regulator_desc_ldo(25),
+ regulator_desc_ldo(26),
+ regulator_desc_ldo(27),
+ regulator_desc_ldo(28),
+ regulator_desc_buck(1),
+ regulator_desc_buck(2),
+ regulator_desc_buck(3),
+ regulator_desc_buck(4),
+ regulator_desc_buck(5),
+ regulator_desc_buck(6),
+ regulator_desc_buck(7),
+ regulator_desc_buck(8),
+ regulator_desc_buck(9),
+};
+
+static __devinit int s5m8767_pmic_probe(struct platform_device *pdev)
+{
+ struct s5m87xx_dev *iodev = dev_get_drvdata(pdev->dev.parent);
+ struct s5m_platform_data *pdata = dev_get_platdata(iodev->dev);
+ struct regulator_dev **rdev;
+ struct s5m8767_info *s5m8767;
+ int i, ret, size;
+
+ if (!pdata) {
+ dev_err(pdev->dev.parent, "Platform data not supplied\n");
+ return -ENODEV;
+ }
+
+ if (pdata->buck2_gpiodvs) {
+ if (pdata->buck3_gpiodvs || pdata->buck4_gpiodvs) {
+ dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n");
+ return -EINVAL;
+ }
+ }
+
+ if (pdata->buck3_gpiodvs) {
+ if (pdata->buck2_gpiodvs || pdata->buck4_gpiodvs) {
+ dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n");
+ return -EINVAL;
+ }
+ }
+
+ if (pdata->buck4_gpiodvs) {
+ if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs) {
+ dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n");
+ return -EINVAL;
+ }
+ }
+
+ s5m8767 = devm_kzalloc(&pdev->dev, sizeof(struct s5m8767_info),
+ GFP_KERNEL);
+ if (!s5m8767)
+ return -ENOMEM;
+
+ size = sizeof(struct regulator_dev *) * (S5M8767_REG_MAX - 2);
+ s5m8767->rdev = devm_kzalloc(&pdev->dev, size, GFP_KERNEL);
+ if (!s5m8767->rdev)
+ return -ENOMEM;
+
+ rdev = s5m8767->rdev;
+ s5m8767->dev = &pdev->dev;
+ s5m8767->iodev = iodev;
+ s5m8767->num_regulators = S5M8767_REG_MAX - 2;
+ platform_set_drvdata(pdev, s5m8767);
+
+ s5m8767->buck_gpioindex = pdata->buck_default_idx;
+ s5m8767->buck2_gpiodvs = pdata->buck2_gpiodvs;
+ s5m8767->buck3_gpiodvs = pdata->buck3_gpiodvs;
+ s5m8767->buck4_gpiodvs = pdata->buck4_gpiodvs;
+ s5m8767->buck_gpios[0] = pdata->buck_gpios[0];
+ s5m8767->buck_gpios[1] = pdata->buck_gpios[1];
+ s5m8767->buck_gpios[2] = pdata->buck_gpios[2];
+ s5m8767->ramp_delay = pdata->buck_ramp_delay;
+ s5m8767->buck2_ramp = pdata->buck2_ramp_enable;
+ s5m8767->buck3_ramp = pdata->buck3_ramp_enable;
+ s5m8767->buck4_ramp = pdata->buck4_ramp_enable;
+
+ for (i = 0; i < 8; i++) {
+ if (s5m8767->buck2_gpiodvs) {
+ s5m8767->buck2_vol[i] =
+ s5m8767_convert_voltage_to_sel(
+ &buck_voltage_val2,
+ pdata->buck2_voltage[i],
+ pdata->buck2_voltage[i] +
+ buck_voltage_val2.step);
+ }
+
+ if (s5m8767->buck3_gpiodvs) {
+ s5m8767->buck3_vol[i] =
+ s5m8767_convert_voltage_to_sel(
+ &buck_voltage_val2,
+ pdata->buck3_voltage[i],
+ pdata->buck3_voltage[i] +
+ buck_voltage_val2.step);
+ }
+
+ if (s5m8767->buck4_gpiodvs) {
+ s5m8767->buck4_vol[i] =
+ s5m8767_convert_voltage_to_sel(
+ &buck_voltage_val2,
+ pdata->buck4_voltage[i],
+ pdata->buck4_voltage[i] +
+ buck_voltage_val2.step);
+ }
+ }
+
+ if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs ||
+ pdata->buck4_gpiodvs) {
+ if (gpio_is_valid(pdata->buck_gpios[0]) &&
+ gpio_is_valid(pdata->buck_gpios[1]) &&
+ gpio_is_valid(pdata->buck_gpios[2])) {
+ ret = gpio_request(pdata->buck_gpios[0],
+ "S5M8767 SET1");
+ if (ret == -EBUSY)
+ dev_warn(&pdev->dev, "Duplicated gpio request for SET1\n");
+
+ ret = gpio_request(pdata->buck_gpios[1],
+ "S5M8767 SET2");
+ if (ret == -EBUSY)
+ dev_warn(&pdev->dev, "Duplicated gpio request for SET2\n");
+
+ ret = gpio_request(pdata->buck_gpios[2],
+ "S5M8767 SET3");
+ if (ret == -EBUSY)
+ dev_warn(&pdev->dev, "Duplicated gpio request for SET3\n");
+ /* SET1 GPIO */
+ gpio_direction_output(pdata->buck_gpios[0],
+ (s5m8767->buck_gpioindex >> 2) & 0x1);
+ /* SET2 GPIO */
+ gpio_direction_output(pdata->buck_gpios[1],
+ (s5m8767->buck_gpioindex >> 1) & 0x1);
+ /* SET3 GPIO */
+ gpio_direction_output(pdata->buck_gpios[2],
+ (s5m8767->buck_gpioindex >> 0) & 0x1);
+ ret = 0;
+ } else {
+ dev_err(&pdev->dev, "GPIO NOT VALID\n");
+ ret = -EINVAL;
+ return ret;
+ }
+ }
+
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK2CTRL,
+ (pdata->buck2_gpiodvs) ? (1 << 1) : (0 << 1), 1 << 1);
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK3CTRL,
+ (pdata->buck3_gpiodvs) ? (1 << 1) : (0 << 1), 1 << 1);
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK4CTRL,
+ (pdata->buck4_gpiodvs) ? (1 << 1) : (0 << 1), 1 << 1);
+
+ /* Initialize GPIO DVS registers */
+ for (i = 0; i < 8; i++) {
+ if (s5m8767->buck2_gpiodvs) {
+ s5m_reg_write(s5m8767->iodev, S5M8767_REG_BUCK2DVS1 + i,
+ s5m8767->buck2_vol[i]);
+ }
+
+ if (s5m8767->buck3_gpiodvs) {
+ s5m_reg_write(s5m8767->iodev, S5M8767_REG_BUCK3DVS1 + i,
+ s5m8767->buck3_vol[i]);
+ }
+
+ if (s5m8767->buck4_gpiodvs) {
+ s5m_reg_write(s5m8767->iodev, S5M8767_REG_BUCK4DVS1 + i,
+ s5m8767->buck4_vol[i]);
+ }
+ }
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK2CTRL, 0x78, 0xff);
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK3CTRL, 0x58, 0xff);
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK4CTRL, 0x78, 0xff);
+
+ if (s5m8767->buck2_ramp)
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, 0x08, 0x08);
+
+ if (s5m8767->buck3_ramp)
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, 0x04, 0x04);
+
+ if (s5m8767->buck4_ramp)
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, 0x02, 0x02);
+
+ if (s5m8767->buck2_ramp || s5m8767->buck3_ramp
+ || s5m8767->buck4_ramp) {
+ switch (s5m8767->ramp_delay) {
+ case 15:
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
+ 0xc0, 0xf0);
+ break;
+ case 25:
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
+ 0xd0, 0xf0);
+ break;
+ case 50:
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
+ 0xe0, 0xf0);
+ break;
+ case 100:
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
+ 0xf0, 0xf0);
+ break;
+ default:
+ s5m_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
+ 0x90, 0xf0);
+ }
+ }
+
+ for (i = 0; i < pdata->num_regulators; i++) {
+ const struct s5m_voltage_desc *desc;
+ int id = pdata->regulators[i].id;
+
+ desc = reg_voltage_map[id];
+ if (desc)
+ regulators[id].n_voltages =
+ (desc->max - desc->min) / desc->step + 1;
+
+ rdev[i] = regulator_register(®ulators[id], s5m8767->dev,
+ pdata->regulators[i].initdata, s5m8767, NULL);
+ if (IS_ERR(rdev[i])) {
+ ret = PTR_ERR(rdev[i]);
+ dev_err(s5m8767->dev, "regulator init failed for %d\n",
+ id);
+ rdev[i] = NULL;
+ goto err;
+ }
+ }
+
+ return 0;
+err:
+ for (i = 0; i < s5m8767->num_regulators; i++)
+ if (rdev[i])
+ regulator_unregister(rdev[i]);
+
+ return ret;
+}
+
+static int __devexit s5m8767_pmic_remove(struct platform_device *pdev)
+{
+ struct s5m8767_info *s5m8767 = platform_get_drvdata(pdev);
+ struct regulator_dev **rdev = s5m8767->rdev;
+ int i;
+
+ for (i = 0; i < s5m8767->num_regulators; i++)
+ if (rdev[i])
+ regulator_unregister(rdev[i]);
+
+ return 0;
+}
+
+static const struct platform_device_id s5m8767_pmic_id[] = {
+ { "s5m8767-pmic", 0},
+ { },
+};
+MODULE_DEVICE_TABLE(platform, s5m8767_pmic_id);
+
+static struct platform_driver s5m8767_pmic_driver = {
+ .driver = {
+ .name = "s5m8767-pmic",
+ .owner = THIS_MODULE,
+ },
+ .probe = s5m8767_pmic_probe,
+ .remove = __devexit_p(s5m8767_pmic_remove),
+ .id_table = s5m8767_pmic_id,
+};
+
+static int __init s5m8767_pmic_init(void)
+{
+ return platform_driver_register(&s5m8767_pmic_driver);
+}
+subsys_initcall(s5m8767_pmic_init);
+
+static void __exit s5m8767_pmic_exit(void)
+{
+ platform_driver_unregister(&s5m8767_pmic_driver);
+}
+module_exit(s5m8767_pmic_exit);
+
+/* Module information */
+MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
+MODULE_DESCRIPTION("SAMSUNG S5M8767 Regulator Driver");
+MODULE_LICENSE("GPL");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/tps6105x-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/tps6105x-regulator.c
new file mode 100644
index 0000000..d9278da
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/tps6105x-regulator.c
@@ -0,0 +1,198 @@
+/*
+ * Driver for TPS61050/61052 boost converters, typically used for white LEDs
+ * or audio amplifiers.
+ *
+ * Copyright (C) 2011 ST-Ericsson SA
+ * Written on behalf of Linaro for ST-Ericsson
+ *
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/tps6105x.h>
+
+static const int tps6105x_voltages[] = {
+ 4500000,
+ 5000000,
+ 5250000,
+ 5000000, /* There is an additional 5V */
+};
+
+static int tps6105x_regulator_enable(struct regulator_dev *rdev)
+{
+ struct tps6105x *tps6105x = rdev_get_drvdata(rdev);
+ int ret;
+
+ /* Activate voltage mode */
+ ret = tps6105x_mask_and_set(tps6105x, TPS6105X_REG_0,
+ TPS6105X_REG0_MODE_MASK,
+ TPS6105X_REG0_MODE_VOLTAGE << TPS6105X_REG0_MODE_SHIFT);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int tps6105x_regulator_disable(struct regulator_dev *rdev)
+{
+ struct tps6105x *tps6105x = rdev_get_drvdata(rdev);
+ int ret;
+
+ /* Set into shutdown mode */
+ ret = tps6105x_mask_and_set(tps6105x, TPS6105X_REG_0,
+ TPS6105X_REG0_MODE_MASK,
+ TPS6105X_REG0_MODE_SHUTDOWN << TPS6105X_REG0_MODE_SHIFT);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int tps6105x_regulator_is_enabled(struct regulator_dev *rdev)
+{
+ struct tps6105x *tps6105x = rdev_get_drvdata(rdev);
+ u8 regval;
+ int ret;
+
+ ret = tps6105x_get(tps6105x, TPS6105X_REG_0, ®val);
+ if (ret)
+ return ret;
+ regval &= TPS6105X_REG0_MODE_MASK;
+ regval >>= TPS6105X_REG0_MODE_SHIFT;
+
+ if (regval == TPS6105X_REG0_MODE_VOLTAGE)
+ return 1;
+
+ return 0;
+}
+
+static int tps6105x_regulator_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct tps6105x *tps6105x = rdev_get_drvdata(rdev);
+ u8 regval;
+ int ret;
+
+ ret = tps6105x_get(tps6105x, TPS6105X_REG_0, ®val);
+ if (ret)
+ return ret;
+
+ regval &= TPS6105X_REG0_VOLTAGE_MASK;
+ regval >>= TPS6105X_REG0_VOLTAGE_SHIFT;
+ return (int) regval;
+}
+
+static int tps6105x_regulator_set_voltage_sel(struct regulator_dev *rdev,
+ unsigned selector)
+{
+ struct tps6105x *tps6105x = rdev_get_drvdata(rdev);
+ int ret;
+
+ ret = tps6105x_mask_and_set(tps6105x, TPS6105X_REG_0,
+ TPS6105X_REG0_VOLTAGE_MASK,
+ selector << TPS6105X_REG0_VOLTAGE_SHIFT);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int tps6105x_regulator_list_voltage(struct regulator_dev *rdev,
+ unsigned selector)
+{
+ if (selector >= ARRAY_SIZE(tps6105x_voltages))
+ return -EINVAL;
+
+ return tps6105x_voltages[selector];
+}
+
+static struct regulator_ops tps6105x_regulator_ops = {
+ .enable = tps6105x_regulator_enable,
+ .disable = tps6105x_regulator_disable,
+ .is_enabled = tps6105x_regulator_is_enabled,
+ .get_voltage_sel = tps6105x_regulator_get_voltage_sel,
+ .set_voltage_sel = tps6105x_regulator_set_voltage_sel,
+ .list_voltage = tps6105x_regulator_list_voltage,
+};
+
+static struct regulator_desc tps6105x_regulator_desc = {
+ .name = "tps6105x-boost",
+ .ops = &tps6105x_regulator_ops,
+ .type = REGULATOR_VOLTAGE,
+ .id = 0,
+ .owner = THIS_MODULE,
+ .n_voltages = ARRAY_SIZE(tps6105x_voltages),
+};
+
+/*
+ * Registers the chip as a voltage regulator
+ */
+static int __devinit tps6105x_regulator_probe(struct platform_device *pdev)
+{
+ struct tps6105x *tps6105x = dev_get_platdata(&pdev->dev);
+ struct tps6105x_platform_data *pdata = tps6105x->pdata;
+ int ret;
+
+ /* This instance is not set for regulator mode so bail out */
+ if (pdata->mode != TPS6105X_MODE_VOLTAGE) {
+ dev_info(&pdev->dev,
+ "chip not in voltage mode mode, exit probe \n");
+ return 0;
+ }
+
+ /* Register regulator with framework */
+ tps6105x->regulator = regulator_register(&tps6105x_regulator_desc,
+ &tps6105x->client->dev,
+ pdata->regulator_data, tps6105x,
+ NULL);
+ if (IS_ERR(tps6105x->regulator)) {
+ ret = PTR_ERR(tps6105x->regulator);
+ dev_err(&tps6105x->client->dev,
+ "failed to register regulator\n");
+ return ret;
+ }
+ platform_set_drvdata(pdev, tps6105x);
+
+ return 0;
+}
+
+static int __devexit tps6105x_regulator_remove(struct platform_device *pdev)
+{
+ struct tps6105x *tps6105x = dev_get_platdata(&pdev->dev);
+ regulator_unregister(tps6105x->regulator);
+ return 0;
+}
+
+static struct platform_driver tps6105x_regulator_driver = {
+ .driver = {
+ .name = "tps6105x-regulator",
+ .owner = THIS_MODULE,
+ },
+ .probe = tps6105x_regulator_probe,
+ .remove = __devexit_p(tps6105x_regulator_remove),
+};
+
+static __init int tps6105x_regulator_init(void)
+{
+ return platform_driver_register(&tps6105x_regulator_driver);
+}
+subsys_initcall(tps6105x_regulator_init);
+
+static __exit void tps6105x_regulator_exit(void)
+{
+ platform_driver_unregister(&tps6105x_regulator_driver);
+}
+module_exit(tps6105x_regulator_exit);
+
+MODULE_AUTHOR("Linus Walleij <linus.walleij@linaro.org>");
+MODULE_DESCRIPTION("TPS6105x regulator driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:tps6105x-regulator");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/tps62360-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/tps62360-regulator.c
new file mode 100644
index 0000000..e2ec730
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/tps62360-regulator.c
@@ -0,0 +1,472 @@
+/*
+ * tps62360.c -- TI tps62360
+ *
+ * Driver for processor core supply tps62360 and tps62361B
+ *
+ * Copyright (c) 2012, NVIDIA Corporation.
+ *
+ * Author: Laxman Dewangan <ldewangan@nvidia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
+ * whether express or implied; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307, USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/tps62360.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/regmap.h>
+
+/* Register definitions */
+#define REG_VSET0 0
+#define REG_VSET1 1
+#define REG_VSET2 2
+#define REG_VSET3 3
+#define REG_CONTROL 4
+#define REG_TEMP 5
+#define REG_RAMPCTRL 6
+#define REG_CHIPID 8
+
+enum chips {TPS62360, TPS62361};
+
+#define TPS62360_BASE_VOLTAGE 770
+#define TPS62360_N_VOLTAGES 64
+
+#define TPS62361_BASE_VOLTAGE 500
+#define TPS62361_N_VOLTAGES 128
+
+/* tps 62360 chip information */
+struct tps62360_chip {
+ const char *name;
+ struct device *dev;
+ struct regulator_desc desc;
+ struct i2c_client *client;
+ struct regulator_dev *rdev;
+ struct regmap *regmap;
+ int chip_id;
+ int vsel0_gpio;
+ int vsel1_gpio;
+ int voltage_base;
+ u8 voltage_reg_mask;
+ bool en_internal_pulldn;
+ bool en_force_pwm;
+ bool en_discharge;
+ bool valid_gpios;
+ int lru_index[4];
+ int curr_vset_vsel[4];
+ int curr_vset_id;
+};
+
+/*
+ * find_voltage_set_register: Find new voltage configuration register
+ * (VSET) id.
+ * The finding of the new VSET register will be based on the LRU mechanism.
+ * Each VSET register will have different voltage configured . This
+ * Function will look if any of the VSET register have requested voltage set
+ * or not.
+ * - If it is already there then it will make that register as most
+ * recently used and return as found so that caller need not to set
+ * the VSET register but need to set the proper gpios to select this
+ * VSET register.
+ * - If requested voltage is not found then it will use the least
+ * recently mechanism to get new VSET register for new configuration
+ * and will return not_found so that caller need to set new VSET
+ * register and then gpios (both).
+ */
+static bool find_voltage_set_register(struct tps62360_chip *tps,
+ int req_vsel, int *vset_reg_id)
+{
+ int i;
+ bool found = false;
+ int new_vset_reg = tps->lru_index[3];
+ int found_index = 3;
+ for (i = 0; i < 4; ++i) {
+ if (tps->curr_vset_vsel[tps->lru_index[i]] == req_vsel) {
+ new_vset_reg = tps->lru_index[i];
+ found_index = i;
+ found = true;
+ goto update_lru_index;
+ }
+ }
+
+update_lru_index:
+ for (i = found_index; i > 0; i--)
+ tps->lru_index[i] = tps->lru_index[i - 1];
+
+ tps->lru_index[0] = new_vset_reg;
+ *vset_reg_id = new_vset_reg;
+ return found;
+}
+
+static int tps62360_dcdc_get_voltage(struct regulator_dev *dev)
+{
+ struct tps62360_chip *tps = rdev_get_drvdata(dev);
+ int vsel;
+ unsigned int data;
+ int ret;
+
+ ret = regmap_read(tps->regmap, REG_VSET0 + tps->curr_vset_id, &data);
+ if (ret < 0) {
+ dev_err(tps->dev, "%s: Error in reading register %d\n",
+ __func__, REG_VSET0 + tps->curr_vset_id);
+ return ret;
+ }
+ vsel = (int)data & tps->voltage_reg_mask;
+ return (tps->voltage_base + vsel * 10) * 1000;
+}
+
+static int tps62360_dcdc_set_voltage(struct regulator_dev *dev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct tps62360_chip *tps = rdev_get_drvdata(dev);
+ int vsel;
+ int ret;
+ bool found = false;
+ int new_vset_id = tps->curr_vset_id;
+
+ if (max_uV < min_uV)
+ return -EINVAL;
+
+ if (min_uV >
+ ((tps->voltage_base + (tps->desc.n_voltages - 1) * 10) * 1000))
+ return -EINVAL;
+
+ if (max_uV < tps->voltage_base * 1000)
+ return -EINVAL;
+
+ vsel = DIV_ROUND_UP(min_uV - (tps->voltage_base * 1000), 10000);
+ if (selector)
+ *selector = (vsel & tps->voltage_reg_mask);
+
+ /*
+ * If gpios are available to select the VSET register then least
+ * recently used register for new configuration.
+ */
+ if (tps->valid_gpios)
+ found = find_voltage_set_register(tps, vsel, &new_vset_id);
+
+ if (!found) {
+ ret = regmap_update_bits(tps->regmap, REG_VSET0 + new_vset_id,
+ tps->voltage_reg_mask, vsel);
+ if (ret < 0) {
+ dev_err(tps->dev, "%s: Error in updating register %d\n",
+ __func__, REG_VSET0 + new_vset_id);
+ return ret;
+ }
+ tps->curr_vset_id = new_vset_id;
+ tps->curr_vset_vsel[new_vset_id] = vsel;
+ }
+
+ /* Select proper VSET register vio gpios */
+ if (tps->valid_gpios) {
+ gpio_set_value_cansleep(tps->vsel0_gpio,
+ new_vset_id & 0x1);
+ gpio_set_value_cansleep(tps->vsel1_gpio,
+ (new_vset_id >> 1) & 0x1);
+ }
+ return 0;
+}
+
+static int tps62360_dcdc_list_voltage(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps62360_chip *tps = rdev_get_drvdata(dev);
+
+ if (selector >= tps->desc.n_voltages)
+ return -EINVAL;
+ return (tps->voltage_base + selector * 10) * 1000;
+}
+
+static struct regulator_ops tps62360_dcdc_ops = {
+ .get_voltage = tps62360_dcdc_get_voltage,
+ .set_voltage = tps62360_dcdc_set_voltage,
+ .list_voltage = tps62360_dcdc_list_voltage,
+};
+
+static int tps62360_init_force_pwm(struct tps62360_chip *tps,
+ struct tps62360_regulator_platform_data *pdata,
+ int vset_id)
+{
+ unsigned int data;
+ int ret;
+ ret = regmap_read(tps->regmap, REG_VSET0 + vset_id, &data);
+ if (ret < 0) {
+ dev_err(tps->dev, "%s() fails in writing reg %d\n",
+ __func__, REG_VSET0 + vset_id);
+ return ret;
+ }
+ tps->curr_vset_vsel[vset_id] = data & tps->voltage_reg_mask;
+ if (pdata->en_force_pwm)
+ data |= BIT(7);
+ else
+ data &= ~BIT(7);
+ ret = regmap_write(tps->regmap, REG_VSET0 + vset_id, data);
+ if (ret < 0)
+ dev_err(tps->dev, "%s() fails in writing reg %d\n",
+ __func__, REG_VSET0 + vset_id);
+ return ret;
+}
+
+static int tps62360_init_dcdc(struct tps62360_chip *tps,
+ struct tps62360_regulator_platform_data *pdata)
+{
+ int ret;
+ int i;
+
+ /* Initailize internal pull up/down control */
+ if (tps->en_internal_pulldn)
+ ret = regmap_write(tps->regmap, REG_CONTROL, 0xE0);
+ else
+ ret = regmap_write(tps->regmap, REG_CONTROL, 0x0);
+ if (ret < 0) {
+ dev_err(tps->dev, "%s() fails in writing reg %d\n",
+ __func__, REG_CONTROL);
+ return ret;
+ }
+
+ /* Initailize force PWM mode */
+ if (tps->valid_gpios) {
+ for (i = 0; i < 4; ++i) {
+ ret = tps62360_init_force_pwm(tps, pdata, i);
+ if (ret < 0)
+ return ret;
+ }
+ } else {
+ ret = tps62360_init_force_pwm(tps, pdata, tps->curr_vset_id);
+ if (ret < 0)
+ return ret;
+ }
+
+ /* Reset output discharge path to reduce power consumption */
+ ret = regmap_update_bits(tps->regmap, REG_RAMPCTRL, BIT(2), 0);
+ if (ret < 0)
+ dev_err(tps->dev, "%s() fails in updating reg %d\n",
+ __func__, REG_RAMPCTRL);
+ return ret;
+}
+
+static const struct regmap_config tps62360_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int __devinit tps62360_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct tps62360_regulator_platform_data *pdata;
+ struct regulator_dev *rdev;
+ struct tps62360_chip *tps;
+ int ret;
+ int i;
+
+ pdata = client->dev.platform_data;
+ if (!pdata) {
+ dev_err(&client->dev, "%s() Err: Platform data not found\n",
+ __func__);
+ return -EIO;
+ }
+
+ tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
+ if (!tps) {
+ dev_err(&client->dev, "%s() Err: Memory allocation fails\n",
+ __func__);
+ return -ENOMEM;
+ }
+
+ tps->en_force_pwm = pdata->en_force_pwm;
+ tps->en_discharge = pdata->en_discharge;
+ tps->en_internal_pulldn = pdata->en_internal_pulldn;
+ tps->vsel0_gpio = pdata->vsel0_gpio;
+ tps->vsel1_gpio = pdata->vsel1_gpio;
+ tps->client = client;
+ tps->dev = &client->dev;
+ tps->name = id->name;
+ tps->voltage_base = (id->driver_data == TPS62360) ?
+ TPS62360_BASE_VOLTAGE : TPS62361_BASE_VOLTAGE;
+ tps->voltage_reg_mask = (id->driver_data == TPS62360) ? 0x3F : 0x7F;
+
+ tps->desc.name = id->name;
+ tps->desc.id = 0;
+ tps->desc.n_voltages = (id->driver_data == TPS62360) ?
+ TPS62360_N_VOLTAGES : TPS62361_N_VOLTAGES;
+ tps->desc.ops = &tps62360_dcdc_ops;
+ tps->desc.type = REGULATOR_VOLTAGE;
+ tps->desc.owner = THIS_MODULE;
+ tps->regmap = regmap_init_i2c(client, &tps62360_regmap_config);
+ if (IS_ERR(tps->regmap)) {
+ ret = PTR_ERR(tps->regmap);
+ dev_err(&client->dev, "%s() Err: Failed to allocate register"
+ "map: %d\n", __func__, ret);
+ return ret;
+ }
+ i2c_set_clientdata(client, tps);
+
+ tps->curr_vset_id = (pdata->vsel1_def_state & 1) * 2 +
+ (pdata->vsel0_def_state & 1);
+ tps->lru_index[0] = tps->curr_vset_id;
+ tps->valid_gpios = false;
+
+ if (gpio_is_valid(tps->vsel0_gpio) && gpio_is_valid(tps->vsel1_gpio)) {
+ ret = gpio_request(tps->vsel0_gpio, "tps62360-vsel0");
+ if (ret) {
+ dev_err(&client->dev,
+ "Err: Could not obtain vsel0 GPIO %d: %d\n",
+ tps->vsel0_gpio, ret);
+ goto err_gpio0;
+ }
+ ret = gpio_direction_output(tps->vsel0_gpio,
+ pdata->vsel0_def_state);
+ if (ret) {
+ dev_err(&client->dev, "Err: Could not set direction of"
+ "vsel0 GPIO %d: %d\n", tps->vsel0_gpio, ret);
+ gpio_free(tps->vsel0_gpio);
+ goto err_gpio0;
+ }
+
+ ret = gpio_request(tps->vsel1_gpio, "tps62360-vsel1");
+ if (ret) {
+ dev_err(&client->dev,
+ "Err: Could not obtain vsel1 GPIO %d: %d\n",
+ tps->vsel1_gpio, ret);
+ goto err_gpio1;
+ }
+ ret = gpio_direction_output(tps->vsel1_gpio,
+ pdata->vsel1_def_state);
+ if (ret) {
+ dev_err(&client->dev, "Err: Could not set direction of"
+ "vsel1 GPIO %d: %d\n", tps->vsel1_gpio, ret);
+ gpio_free(tps->vsel1_gpio);
+ goto err_gpio1;
+ }
+ tps->valid_gpios = true;
+
+ /*
+ * Initialize the lru index with vset_reg id
+ * The index 0 will be most recently used and
+ * set with the tps->curr_vset_id */
+ for (i = 0; i < 4; ++i)
+ tps->lru_index[i] = i;
+ tps->lru_index[0] = tps->curr_vset_id;
+ tps->lru_index[tps->curr_vset_id] = 0;
+ }
+
+ ret = tps62360_init_dcdc(tps, pdata);
+ if (ret < 0) {
+ dev_err(tps->dev, "%s() Err: Init fails with = %d\n",
+ __func__, ret);
+ goto err_init;
+ }
+
+ /* Register the regulators */
+ rdev = regulator_register(&tps->desc, &client->dev,
+ &pdata->reg_init_data, tps, NULL);
+ if (IS_ERR(rdev)) {
+ dev_err(tps->dev, "%s() Err: Failed to register %s\n",
+ __func__, id->name);
+ ret = PTR_ERR(rdev);
+ goto err_init;
+ }
+
+ tps->rdev = rdev;
+ return 0;
+
+err_init:
+ if (gpio_is_valid(tps->vsel1_gpio))
+ gpio_free(tps->vsel1_gpio);
+err_gpio1:
+ if (gpio_is_valid(tps->vsel0_gpio))
+ gpio_free(tps->vsel0_gpio);
+err_gpio0:
+ regmap_exit(tps->regmap);
+ return ret;
+}
+
+/**
+ * tps62360_remove - tps62360 driver i2c remove handler
+ * @client: i2c driver client device structure
+ *
+ * Unregister TPS driver as an i2c client device driver
+ */
+static int __devexit tps62360_remove(struct i2c_client *client)
+{
+ struct tps62360_chip *tps = i2c_get_clientdata(client);
+
+ if (gpio_is_valid(tps->vsel1_gpio))
+ gpio_free(tps->vsel1_gpio);
+
+ if (gpio_is_valid(tps->vsel0_gpio))
+ gpio_free(tps->vsel0_gpio);
+
+ regulator_unregister(tps->rdev);
+ regmap_exit(tps->regmap);
+ return 0;
+}
+
+static void tps62360_shutdown(struct i2c_client *client)
+{
+ struct tps62360_chip *tps = i2c_get_clientdata(client);
+ int st;
+
+ if (!tps->en_discharge)
+ return;
+
+ /* Configure the output discharge path */
+ st = regmap_update_bits(tps->regmap, REG_RAMPCTRL, BIT(2), BIT(2));
+ if (st < 0)
+ dev_err(tps->dev, "%s() fails in updating reg %d\n",
+ __func__, REG_RAMPCTRL);
+}
+
+static const struct i2c_device_id tps62360_id[] = {
+ {.name = "tps62360", .driver_data = TPS62360},
+ {.name = "tps62361", .driver_data = TPS62361},
+ {},
+};
+
+MODULE_DEVICE_TABLE(i2c, tps62360_id);
+
+static struct i2c_driver tps62360_i2c_driver = {
+ .driver = {
+ .name = "tps62360",
+ .owner = THIS_MODULE,
+ },
+ .probe = tps62360_probe,
+ .remove = __devexit_p(tps62360_remove),
+ .shutdown = tps62360_shutdown,
+ .id_table = tps62360_id,
+};
+
+static int __init tps62360_init(void)
+{
+ return i2c_add_driver(&tps62360_i2c_driver);
+}
+subsys_initcall(tps62360_init);
+
+static void __exit tps62360_cleanup(void)
+{
+ i2c_del_driver(&tps62360_i2c_driver);
+}
+module_exit(tps62360_cleanup);
+
+MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
+MODULE_DESCRIPTION("TPS62360 voltage regulator driver");
+MODULE_LICENSE("GPL v2");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/tps65023-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/tps65023-regulator.c
new file mode 100644
index 0000000..43e4902
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/tps65023-regulator.c
@@ -0,0 +1,696 @@
+/*
+ * tps65023-regulator.c
+ *
+ * Supports TPS65023 Regulator
+ *
+ * Copyright (C) 2009 Texas Instrument Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
+ * whether express or implied; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/regmap.h>
+
+/* Register definitions */
+#define TPS65023_REG_VERSION 0
+#define TPS65023_REG_PGOODZ 1
+#define TPS65023_REG_MASK 2
+#define TPS65023_REG_REG_CTRL 3
+#define TPS65023_REG_CON_CTRL 4
+#define TPS65023_REG_CON_CTRL2 5
+#define TPS65023_REG_DEF_CORE 6
+#define TPS65023_REG_DEFSLEW 7
+#define TPS65023_REG_LDO_CTRL 8
+
+/* PGOODZ bitfields */
+#define TPS65023_PGOODZ_PWRFAILZ BIT(7)
+#define TPS65023_PGOODZ_LOWBATTZ BIT(6)
+#define TPS65023_PGOODZ_VDCDC1 BIT(5)
+#define TPS65023_PGOODZ_VDCDC2 BIT(4)
+#define TPS65023_PGOODZ_VDCDC3 BIT(3)
+#define TPS65023_PGOODZ_LDO2 BIT(2)
+#define TPS65023_PGOODZ_LDO1 BIT(1)
+
+/* MASK bitfields */
+#define TPS65023_MASK_PWRFAILZ BIT(7)
+#define TPS65023_MASK_LOWBATTZ BIT(6)
+#define TPS65023_MASK_VDCDC1 BIT(5)
+#define TPS65023_MASK_VDCDC2 BIT(4)
+#define TPS65023_MASK_VDCDC3 BIT(3)
+#define TPS65023_MASK_LDO2 BIT(2)
+#define TPS65023_MASK_LDO1 BIT(1)
+
+/* REG_CTRL bitfields */
+#define TPS65023_REG_CTRL_VDCDC1_EN BIT(5)
+#define TPS65023_REG_CTRL_VDCDC2_EN BIT(4)
+#define TPS65023_REG_CTRL_VDCDC3_EN BIT(3)
+#define TPS65023_REG_CTRL_LDO2_EN BIT(2)
+#define TPS65023_REG_CTRL_LDO1_EN BIT(1)
+
+/* REG_CTRL2 bitfields */
+#define TPS65023_REG_CTRL2_GO BIT(7)
+#define TPS65023_REG_CTRL2_CORE_ADJ BIT(6)
+#define TPS65023_REG_CTRL2_DCDC2 BIT(2)
+#define TPS65023_REG_CTRL2_DCDC1 BIT(1)
+#define TPS65023_REG_CTRL2_DCDC3 BIT(0)
+
+/* LDO_CTRL bitfields */
+#define TPS65023_LDO_CTRL_LDOx_SHIFT(ldo_id) ((ldo_id)*4)
+#define TPS65023_LDO_CTRL_LDOx_MASK(ldo_id) (0xF0 >> ((ldo_id)*4))
+
+/* Number of step-down converters available */
+#define TPS65023_NUM_DCDC 3
+/* Number of LDO voltage regulators available */
+#define TPS65023_NUM_LDO 2
+/* Number of total regulators available */
+#define TPS65023_NUM_REGULATOR (TPS65023_NUM_DCDC + TPS65023_NUM_LDO)
+
+/* DCDCs */
+#define TPS65023_DCDC_1 0
+#define TPS65023_DCDC_2 1
+#define TPS65023_DCDC_3 2
+/* LDOs */
+#define TPS65023_LDO_1 3
+#define TPS65023_LDO_2 4
+
+#define TPS65023_MAX_REG_ID TPS65023_LDO_2
+
+/* Supported voltage values for regulators */
+static const u16 VCORE_VSEL_table[] = {
+ 800, 825, 850, 875,
+ 900, 925, 950, 975,
+ 1000, 1025, 1050, 1075,
+ 1100, 1125, 1150, 1175,
+ 1200, 1225, 1250, 1275,
+ 1300, 1325, 1350, 1375,
+ 1400, 1425, 1450, 1475,
+ 1500, 1525, 1550, 1600,
+};
+
+/* Supported voltage values for LDO regulators for tps65020 */
+static const u16 TPS65020_LDO1_VSEL_table[] = {
+ 1000, 1050, 1100, 1300,
+ 1800, 2500, 3000, 3300,
+};
+
+static const u16 TPS65020_LDO2_VSEL_table[] = {
+ 1000, 1050, 1100, 1300,
+ 1800, 2500, 3000, 3300,
+};
+
+/* Supported voltage values for LDO regulators
+ * for tps65021 and tps65023 */
+static const u16 TPS65023_LDO1_VSEL_table[] = {
+ 1000, 1100, 1300, 1800,
+ 2200, 2600, 2800, 3150,
+};
+
+static const u16 TPS65023_LDO2_VSEL_table[] = {
+ 1050, 1200, 1300, 1800,
+ 2500, 2800, 3000, 3300,
+};
+
+/* Regulator specific details */
+struct tps_info {
+ const char *name;
+ unsigned min_uV;
+ unsigned max_uV;
+ bool fixed;
+ u8 table_len;
+ const u16 *table;
+};
+
+/* PMIC details */
+struct tps_pmic {
+ struct regulator_desc desc[TPS65023_NUM_REGULATOR];
+ struct i2c_client *client;
+ struct regulator_dev *rdev[TPS65023_NUM_REGULATOR];
+ const struct tps_info *info[TPS65023_NUM_REGULATOR];
+ struct regmap *regmap;
+ u8 core_regulator;
+};
+
+/* Struct passed as driver data */
+struct tps_driver_data {
+ const struct tps_info *info;
+ u8 core_regulator;
+};
+
+static int tps65023_dcdc_is_enabled(struct regulator_dev *dev)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int data, dcdc = rdev_get_id(dev);
+ int ret;
+ u8 shift;
+
+ if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
+ return -EINVAL;
+
+ shift = TPS65023_NUM_REGULATOR - dcdc;
+ ret = regmap_read(tps->regmap, TPS65023_REG_REG_CTRL, &data);
+
+ if (ret != 0)
+ return ret;
+ else
+ return (data & 1<<shift) ? 1 : 0;
+}
+
+static int tps65023_ldo_is_enabled(struct regulator_dev *dev)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int data, ldo = rdev_get_id(dev);
+ int ret;
+ u8 shift;
+
+ if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2)
+ return -EINVAL;
+
+ shift = (ldo == TPS65023_LDO_1 ? 1 : 2);
+ ret = regmap_read(tps->regmap, TPS65023_REG_REG_CTRL, &data);
+
+ if (ret != 0)
+ return ret;
+ else
+ return (data & 1<<shift) ? 1 : 0;
+}
+
+static int tps65023_dcdc_enable(struct regulator_dev *dev)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int dcdc = rdev_get_id(dev);
+ u8 shift;
+
+ if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
+ return -EINVAL;
+
+ shift = TPS65023_NUM_REGULATOR - dcdc;
+ return regmap_update_bits(tps->regmap, TPS65023_REG_REG_CTRL, 1 << shift, 1 << shift);
+}
+
+static int tps65023_dcdc_disable(struct regulator_dev *dev)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int dcdc = rdev_get_id(dev);
+ u8 shift;
+
+ if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
+ return -EINVAL;
+
+ shift = TPS65023_NUM_REGULATOR - dcdc;
+ return regmap_update_bits(tps->regmap, TPS65023_REG_REG_CTRL, 1 << shift, 0);
+}
+
+static int tps65023_ldo_enable(struct regulator_dev *dev)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int ldo = rdev_get_id(dev);
+ u8 shift;
+
+ if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2)
+ return -EINVAL;
+
+ shift = (ldo == TPS65023_LDO_1 ? 1 : 2);
+ return regmap_update_bits(tps->regmap, TPS65023_REG_REG_CTRL, 1 << shift, 1 << shift);
+}
+
+static int tps65023_ldo_disable(struct regulator_dev *dev)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int ldo = rdev_get_id(dev);
+ u8 shift;
+
+ if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2)
+ return -EINVAL;
+
+ shift = (ldo == TPS65023_LDO_1 ? 1 : 2);
+ return regmap_update_bits(tps->regmap, TPS65023_REG_REG_CTRL, 1 << shift, 0);
+}
+
+static int tps65023_dcdc_get_voltage(struct regulator_dev *dev)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int ret;
+ int data, dcdc = rdev_get_id(dev);
+
+ if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
+ return -EINVAL;
+
+ if (dcdc == tps->core_regulator) {
+ ret = regmap_read(tps->regmap, TPS65023_REG_DEF_CORE, &data);
+ if (ret != 0)
+ return ret;
+ data &= (tps->info[dcdc]->table_len - 1);
+ return tps->info[dcdc]->table[data] * 1000;
+ } else
+ return tps->info[dcdc]->min_uV;
+}
+
+static int tps65023_dcdc_set_voltage(struct regulator_dev *dev,
+ int min_uV, int max_uV,
+ unsigned *selector)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int dcdc = rdev_get_id(dev);
+ int vsel;
+ int ret;
+
+ if (dcdc != tps->core_regulator)
+ return -EINVAL;
+ if (min_uV < tps->info[dcdc]->min_uV
+ || min_uV > tps->info[dcdc]->max_uV)
+ return -EINVAL;
+ if (max_uV < tps->info[dcdc]->min_uV
+ || max_uV > tps->info[dcdc]->max_uV)
+ return -EINVAL;
+
+ for (vsel = 0; vsel < tps->info[dcdc]->table_len; vsel++) {
+ int mV = tps->info[dcdc]->table[vsel];
+ int uV = mV * 1000;
+
+ /* Break at the first in-range value */
+ if (min_uV <= uV && uV <= max_uV)
+ break;
+ }
+
+ *selector = vsel;
+
+ if (vsel == tps->info[dcdc]->table_len)
+ goto failed;
+
+ ret = regmap_write(tps->regmap, TPS65023_REG_DEF_CORE, vsel);
+
+ /* Tell the chip that we have changed the value in DEFCORE
+ * and its time to update the core voltage
+ */
+ regmap_update_bits(tps->regmap, TPS65023_REG_CON_CTRL2,
+ TPS65023_REG_CTRL2_GO, TPS65023_REG_CTRL2_GO);
+
+ return ret;
+
+failed:
+ return -EINVAL;
+}
+
+static int tps65023_ldo_get_voltage(struct regulator_dev *dev)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int data, ldo = rdev_get_id(dev);
+ int ret;
+
+ if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2)
+ return -EINVAL;
+
+ ret = regmap_read(tps->regmap, TPS65023_REG_LDO_CTRL, &data);
+ if (ret != 0)
+ return ret;
+
+ data >>= (TPS65023_LDO_CTRL_LDOx_SHIFT(ldo - TPS65023_LDO_1));
+ data &= (tps->info[ldo]->table_len - 1);
+ return tps->info[ldo]->table[data] * 1000;
+}
+
+static int tps65023_ldo_set_voltage(struct regulator_dev *dev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int data, vsel, ldo = rdev_get_id(dev);
+ int ret;
+
+ if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2)
+ return -EINVAL;
+
+ if (min_uV < tps->info[ldo]->min_uV || min_uV > tps->info[ldo]->max_uV)
+ return -EINVAL;
+ if (max_uV < tps->info[ldo]->min_uV || max_uV > tps->info[ldo]->max_uV)
+ return -EINVAL;
+
+ for (vsel = 0; vsel < tps->info[ldo]->table_len; vsel++) {
+ int mV = tps->info[ldo]->table[vsel];
+ int uV = mV * 1000;
+
+ /* Break at the first in-range value */
+ if (min_uV <= uV && uV <= max_uV)
+ break;
+ }
+
+ if (vsel == tps->info[ldo]->table_len)
+ return -EINVAL;
+
+ *selector = vsel;
+
+ ret = regmap_read(tps->regmap, TPS65023_REG_LDO_CTRL, &data);
+ if (ret != 0)
+ return ret;
+
+ data &= TPS65023_LDO_CTRL_LDOx_MASK(ldo - TPS65023_LDO_1);
+ data |= (vsel << (TPS65023_LDO_CTRL_LDOx_SHIFT(ldo - TPS65023_LDO_1)));
+ return regmap_write(tps->regmap, TPS65023_REG_LDO_CTRL, data);
+}
+
+static int tps65023_dcdc_list_voltage(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int dcdc = rdev_get_id(dev);
+
+ if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
+ return -EINVAL;
+
+ if (dcdc == tps->core_regulator) {
+ if (selector >= tps->info[dcdc]->table_len)
+ return -EINVAL;
+ else
+ return tps->info[dcdc]->table[selector] * 1000;
+ } else
+ return tps->info[dcdc]->min_uV;
+}
+
+static int tps65023_ldo_list_voltage(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps_pmic *tps = rdev_get_drvdata(dev);
+ int ldo = rdev_get_id(dev);
+
+ if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2)
+ return -EINVAL;
+
+ if (selector >= tps->info[ldo]->table_len)
+ return -EINVAL;
+ else
+ return tps->info[ldo]->table[selector] * 1000;
+}
+
+/* Operations permitted on VDCDCx */
+static struct regulator_ops tps65023_dcdc_ops = {
+ .is_enabled = tps65023_dcdc_is_enabled,
+ .enable = tps65023_dcdc_enable,
+ .disable = tps65023_dcdc_disable,
+ .get_voltage = tps65023_dcdc_get_voltage,
+ .set_voltage = tps65023_dcdc_set_voltage,
+ .list_voltage = tps65023_dcdc_list_voltage,
+};
+
+/* Operations permitted on LDOx */
+static struct regulator_ops tps65023_ldo_ops = {
+ .is_enabled = tps65023_ldo_is_enabled,
+ .enable = tps65023_ldo_enable,
+ .disable = tps65023_ldo_disable,
+ .get_voltage = tps65023_ldo_get_voltage,
+ .set_voltage = tps65023_ldo_set_voltage,
+ .list_voltage = tps65023_ldo_list_voltage,
+};
+
+static struct regmap_config tps65023_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+};
+
+static int __devinit tps_65023_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ const struct tps_driver_data *drv_data = (void *)id->driver_data;
+ const struct tps_info *info = drv_data->info;
+ struct regulator_init_data *init_data;
+ struct regulator_dev *rdev;
+ struct tps_pmic *tps;
+ int i;
+ int error;
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -EIO;
+
+ /**
+ * init_data points to array of regulator_init structures
+ * coming from the board-evm file.
+ */
+ init_data = client->dev.platform_data;
+ if (!init_data)
+ return -EIO;
+
+ tps = kzalloc(sizeof(*tps), GFP_KERNEL);
+ if (!tps)
+ return -ENOMEM;
+
+ tps->regmap = regmap_init_i2c(client, &tps65023_regmap_config);
+ if (IS_ERR(tps->regmap)) {
+ error = PTR_ERR(tps->regmap);
+ dev_err(&client->dev, "Failed to allocate register map: %d\n",
+ error);
+ goto fail_alloc;
+ }
+
+ /* common for all regulators */
+ tps->client = client;
+ tps->core_regulator = drv_data->core_regulator;
+
+ for (i = 0; i < TPS65023_NUM_REGULATOR; i++, info++, init_data++) {
+ /* Store regulator specific information */
+ tps->info[i] = info;
+
+ tps->desc[i].name = info->name;
+ tps->desc[i].id = i;
+ tps->desc[i].n_voltages = info->table_len;
+ tps->desc[i].ops = (i > TPS65023_DCDC_3 ?
+ &tps65023_ldo_ops : &tps65023_dcdc_ops);
+ tps->desc[i].type = REGULATOR_VOLTAGE;
+ tps->desc[i].owner = THIS_MODULE;
+
+ /* Register the regulators */
+ rdev = regulator_register(&tps->desc[i], &client->dev,
+ init_data, tps, NULL);
+ if (IS_ERR(rdev)) {
+ dev_err(&client->dev, "failed to register %s\n",
+ id->name);
+ error = PTR_ERR(rdev);
+ goto fail;
+ }
+
+ /* Save regulator for cleanup */
+ tps->rdev[i] = rdev;
+ }
+
+ i2c_set_clientdata(client, tps);
+
+ /* Enable setting output voltage by I2C */
+ regmap_update_bits(tps->regmap, TPS65023_REG_CON_CTRL2,
+ TPS65023_REG_CTRL2_CORE_ADJ, TPS65023_REG_CTRL2_CORE_ADJ);
+
+ return 0;
+
+ fail:
+ while (--i >= 0)
+ regulator_unregister(tps->rdev[i]);
+
+ regmap_exit(tps->regmap);
+ fail_alloc:
+ kfree(tps);
+ return error;
+}
+
+/**
+ * tps_65023_remove - TPS65023 driver i2c remove handler
+ * @client: i2c driver client device structure
+ *
+ * Unregister TPS driver as an i2c client device driver
+ */
+static int __devexit tps_65023_remove(struct i2c_client *client)
+{
+ struct tps_pmic *tps = i2c_get_clientdata(client);
+ int i;
+
+ for (i = 0; i < TPS65023_NUM_REGULATOR; i++)
+ regulator_unregister(tps->rdev[i]);
+
+ regmap_exit(tps->regmap);
+ kfree(tps);
+
+ return 0;
+}
+
+static const struct tps_info tps65020_regs[] = {
+ {
+ .name = "VDCDC1",
+ .min_uV = 3300000,
+ .max_uV = 3300000,
+ .fixed = 1,
+ },
+ {
+ .name = "VDCDC2",
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .fixed = 1,
+ },
+ {
+ .name = "VDCDC3",
+ .min_uV = 800000,
+ .max_uV = 1600000,
+ .table_len = ARRAY_SIZE(VCORE_VSEL_table),
+ .table = VCORE_VSEL_table,
+ },
+
+ {
+ .name = "LDO1",
+ .min_uV = 1000000,
+ .max_uV = 3150000,
+ .table_len = ARRAY_SIZE(TPS65020_LDO1_VSEL_table),
+ .table = TPS65020_LDO1_VSEL_table,
+ },
+ {
+ .name = "LDO2",
+ .min_uV = 1050000,
+ .max_uV = 3300000,
+ .table_len = ARRAY_SIZE(TPS65020_LDO2_VSEL_table),
+ .table = TPS65020_LDO2_VSEL_table,
+ },
+};
+
+static const struct tps_info tps65021_regs[] = {
+ {
+ .name = "VDCDC1",
+ .min_uV = 3300000,
+ .max_uV = 3300000,
+ .fixed = 1,
+ },
+ {
+ .name = "VDCDC2",
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .fixed = 1,
+ },
+ {
+ .name = "VDCDC3",
+ .min_uV = 800000,
+ .max_uV = 1600000,
+ .table_len = ARRAY_SIZE(VCORE_VSEL_table),
+ .table = VCORE_VSEL_table,
+ },
+ {
+ .name = "LDO1",
+ .min_uV = 1000000,
+ .max_uV = 3150000,
+ .table_len = ARRAY_SIZE(TPS65023_LDO1_VSEL_table),
+ .table = TPS65023_LDO1_VSEL_table,
+ },
+ {
+ .name = "LDO2",
+ .min_uV = 1050000,
+ .max_uV = 3300000,
+ .table_len = ARRAY_SIZE(TPS65023_LDO2_VSEL_table),
+ .table = TPS65023_LDO2_VSEL_table,
+ },
+};
+
+static const struct tps_info tps65023_regs[] = {
+ {
+ .name = "VDCDC1",
+ .min_uV = 800000,
+ .max_uV = 1600000,
+ .table_len = ARRAY_SIZE(VCORE_VSEL_table),
+ .table = VCORE_VSEL_table,
+ },
+ {
+ .name = "VDCDC2",
+ .min_uV = 3300000,
+ .max_uV = 3300000,
+ .fixed = 1,
+ },
+ {
+ .name = "VDCDC3",
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .fixed = 1,
+ },
+ {
+ .name = "LDO1",
+ .min_uV = 1000000,
+ .max_uV = 3150000,
+ .table_len = ARRAY_SIZE(TPS65023_LDO1_VSEL_table),
+ .table = TPS65023_LDO1_VSEL_table,
+ },
+ {
+ .name = "LDO2",
+ .min_uV = 1050000,
+ .max_uV = 3300000,
+ .table_len = ARRAY_SIZE(TPS65023_LDO2_VSEL_table),
+ .table = TPS65023_LDO2_VSEL_table,
+ },
+};
+
+static struct tps_driver_data tps65020_drv_data = {
+ .info = tps65020_regs,
+ .core_regulator = TPS65023_DCDC_3,
+};
+
+static struct tps_driver_data tps65021_drv_data = {
+ .info = tps65021_regs,
+ .core_regulator = TPS65023_DCDC_3,
+};
+
+static struct tps_driver_data tps65023_drv_data = {
+ .info = tps65023_regs,
+ .core_regulator = TPS65023_DCDC_1,
+};
+
+static const struct i2c_device_id tps_65023_id[] = {
+ {.name = "tps65023",
+ .driver_data = (unsigned long) &tps65023_drv_data},
+ {.name = "tps65021",
+ .driver_data = (unsigned long) &tps65021_drv_data,},
+ {.name = "tps65020",
+ .driver_data = (unsigned long) &tps65020_drv_data},
+ { },
+};
+
+MODULE_DEVICE_TABLE(i2c, tps_65023_id);
+
+static struct i2c_driver tps_65023_i2c_driver = {
+ .driver = {
+ .name = "tps65023",
+ .owner = THIS_MODULE,
+ },
+ .probe = tps_65023_probe,
+ .remove = __devexit_p(tps_65023_remove),
+ .id_table = tps_65023_id,
+};
+
+/**
+ * tps_65023_init
+ *
+ * Module init function
+ */
+static int __init tps_65023_init(void)
+{
+ return i2c_add_driver(&tps_65023_i2c_driver);
+}
+subsys_initcall(tps_65023_init);
+
+/**
+ * tps_65023_cleanup
+ *
+ * Module exit function
+ */
+static void __exit tps_65023_cleanup(void)
+{
+ i2c_del_driver(&tps_65023_i2c_driver);
+}
+module_exit(tps_65023_cleanup);
+
+MODULE_AUTHOR("Texas Instruments");
+MODULE_DESCRIPTION("TPS65023 voltage regulator driver");
+MODULE_LICENSE("GPL v2");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/tps6507x-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/tps6507x-regulator.c
new file mode 100644
index 0000000..832833f
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/tps6507x-regulator.c
@@ -0,0 +1,521 @@
+/*
+ * tps6507x-regulator.c
+ *
+ * Regulator driver for TPS65073 PMIC
+ *
+ * Copyright (C) 2009 Texas Instrument Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
+ * whether express or implied; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/tps6507x.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/mfd/tps6507x.h>
+
+/* DCDC's */
+#define TPS6507X_DCDC_1 0
+#define TPS6507X_DCDC_2 1
+#define TPS6507X_DCDC_3 2
+/* LDOs */
+#define TPS6507X_LDO_1 3
+#define TPS6507X_LDO_2 4
+
+#define TPS6507X_MAX_REG_ID TPS6507X_LDO_2
+
+/* Number of step-down converters available */
+#define TPS6507X_NUM_DCDC 3
+/* Number of LDO voltage regulators available */
+#define TPS6507X_NUM_LDO 2
+/* Number of total regulators available */
+#define TPS6507X_NUM_REGULATOR (TPS6507X_NUM_DCDC + TPS6507X_NUM_LDO)
+
+/* Supported voltage values for regulators (in milliVolts) */
+static const u16 VDCDCx_VSEL_table[] = {
+ 725, 750, 775, 800,
+ 825, 850, 875, 900,
+ 925, 950, 975, 1000,
+ 1025, 1050, 1075, 1100,
+ 1125, 1150, 1175, 1200,
+ 1225, 1250, 1275, 1300,
+ 1325, 1350, 1375, 1400,
+ 1425, 1450, 1475, 1500,
+ 1550, 1600, 1650, 1700,
+ 1750, 1800, 1850, 1900,
+ 1950, 2000, 2050, 2100,
+ 2150, 2200, 2250, 2300,
+ 2350, 2400, 2450, 2500,
+ 2550, 2600, 2650, 2700,
+ 2750, 2800, 2850, 2900,
+ 3000, 3100, 3200, 3300,
+};
+
+static const u16 LDO1_VSEL_table[] = {
+ 1000, 1100, 1200, 1250,
+ 1300, 1350, 1400, 1500,
+ 1600, 1800, 2500, 2750,
+ 2800, 3000, 3100, 3300,
+};
+
+static const u16 LDO2_VSEL_table[] = {
+ 725, 750, 775, 800,
+ 825, 850, 875, 900,
+ 925, 950, 975, 1000,
+ 1025, 1050, 1075, 1100,
+ 1125, 1150, 1175, 1200,
+ 1225, 1250, 1275, 1300,
+ 1325, 1350, 1375, 1400,
+ 1425, 1450, 1475, 1500,
+ 1550, 1600, 1650, 1700,
+ 1750, 1800, 1850, 1900,
+ 1950, 2000, 2050, 2100,
+ 2150, 2200, 2250, 2300,
+ 2350, 2400, 2450, 2500,
+ 2550, 2600, 2650, 2700,
+ 2750, 2800, 2850, 2900,
+ 3000, 3100, 3200, 3300,
+};
+
+struct tps_info {
+ const char *name;
+ unsigned min_uV;
+ unsigned max_uV;
+ u8 table_len;
+ const u16 *table;
+
+ /* Does DCDC high or the low register defines output voltage? */
+ bool defdcdc_default;
+};
+
+static struct tps_info tps6507x_pmic_regs[] = {
+ {
+ .name = "VDCDC1",
+ .min_uV = 725000,
+ .max_uV = 3300000,
+ .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
+ .table = VDCDCx_VSEL_table,
+ },
+ {
+ .name = "VDCDC2",
+ .min_uV = 725000,
+ .max_uV = 3300000,
+ .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
+ .table = VDCDCx_VSEL_table,
+ },
+ {
+ .name = "VDCDC3",
+ .min_uV = 725000,
+ .max_uV = 3300000,
+ .table_len = ARRAY_SIZE(VDCDCx_VSEL_table),
+ .table = VDCDCx_VSEL_table,
+ },
+ {
+ .name = "LDO1",
+ .min_uV = 1000000,
+ .max_uV = 3300000,
+ .table_len = ARRAY_SIZE(LDO1_VSEL_table),
+ .table = LDO1_VSEL_table,
+ },
+ {
+ .name = "LDO2",
+ .min_uV = 725000,
+ .max_uV = 3300000,
+ .table_len = ARRAY_SIZE(LDO2_VSEL_table),
+ .table = LDO2_VSEL_table,
+ },
+};
+
+struct tps6507x_pmic {
+ struct regulator_desc desc[TPS6507X_NUM_REGULATOR];
+ struct tps6507x_dev *mfd;
+ struct regulator_dev *rdev[TPS6507X_NUM_REGULATOR];
+ struct tps_info *info[TPS6507X_NUM_REGULATOR];
+ struct mutex io_lock;
+};
+static inline int tps6507x_pmic_read(struct tps6507x_pmic *tps, u8 reg)
+{
+ u8 val;
+ int err;
+
+ err = tps->mfd->read_dev(tps->mfd, reg, 1, &val);
+
+ if (err)
+ return err;
+
+ return val;
+}
+
+static inline int tps6507x_pmic_write(struct tps6507x_pmic *tps, u8 reg, u8 val)
+{
+ return tps->mfd->write_dev(tps->mfd, reg, 1, &val);
+}
+
+static int tps6507x_pmic_set_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask)
+{
+ int err, data;
+
+ mutex_lock(&tps->io_lock);
+
+ data = tps6507x_pmic_read(tps, reg);
+ if (data < 0) {
+ dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
+ err = data;
+ goto out;
+ }
+
+ data |= mask;
+ err = tps6507x_pmic_write(tps, reg, data);
+ if (err)
+ dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
+
+out:
+ mutex_unlock(&tps->io_lock);
+ return err;
+}
+
+static int tps6507x_pmic_clear_bits(struct tps6507x_pmic *tps, u8 reg, u8 mask)
+{
+ int err, data;
+
+ mutex_lock(&tps->io_lock);
+
+ data = tps6507x_pmic_read(tps, reg);
+ if (data < 0) {
+ dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
+ err = data;
+ goto out;
+ }
+
+ data &= ~mask;
+ err = tps6507x_pmic_write(tps, reg, data);
+ if (err)
+ dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
+
+out:
+ mutex_unlock(&tps->io_lock);
+ return err;
+}
+
+static int tps6507x_pmic_reg_read(struct tps6507x_pmic *tps, u8 reg)
+{
+ int data;
+
+ mutex_lock(&tps->io_lock);
+
+ data = tps6507x_pmic_read(tps, reg);
+ if (data < 0)
+ dev_err(tps->mfd->dev, "Read from reg 0x%x failed\n", reg);
+
+ mutex_unlock(&tps->io_lock);
+ return data;
+}
+
+static int tps6507x_pmic_reg_write(struct tps6507x_pmic *tps, u8 reg, u8 val)
+{
+ int err;
+
+ mutex_lock(&tps->io_lock);
+
+ err = tps6507x_pmic_write(tps, reg, val);
+ if (err < 0)
+ dev_err(tps->mfd->dev, "Write for reg 0x%x failed\n", reg);
+
+ mutex_unlock(&tps->io_lock);
+ return err;
+}
+
+static int tps6507x_pmic_is_enabled(struct regulator_dev *dev)
+{
+ struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
+ int data, rid = rdev_get_id(dev);
+ u8 shift;
+
+ if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2)
+ return -EINVAL;
+
+ shift = TPS6507X_MAX_REG_ID - rid;
+ data = tps6507x_pmic_reg_read(tps, TPS6507X_REG_CON_CTRL1);
+
+ if (data < 0)
+ return data;
+ else
+ return (data & 1<<shift) ? 1 : 0;
+}
+
+static int tps6507x_pmic_enable(struct regulator_dev *dev)
+{
+ struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
+ int rid = rdev_get_id(dev);
+ u8 shift;
+
+ if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2)
+ return -EINVAL;
+
+ shift = TPS6507X_MAX_REG_ID - rid;
+ return tps6507x_pmic_set_bits(tps, TPS6507X_REG_CON_CTRL1, 1 << shift);
+}
+
+static int tps6507x_pmic_disable(struct regulator_dev *dev)
+{
+ struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
+ int rid = rdev_get_id(dev);
+ u8 shift;
+
+ if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2)
+ return -EINVAL;
+
+ shift = TPS6507X_MAX_REG_ID - rid;
+ return tps6507x_pmic_clear_bits(tps, TPS6507X_REG_CON_CTRL1,
+ 1 << shift);
+}
+
+static int tps6507x_pmic_get_voltage(struct regulator_dev *dev)
+{
+ struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
+ int data, rid = rdev_get_id(dev);
+ u8 reg, mask;
+
+ switch (rid) {
+ case TPS6507X_DCDC_1:
+ reg = TPS6507X_REG_DEFDCDC1;
+ mask = TPS6507X_DEFDCDCX_DCDC_MASK;
+ break;
+ case TPS6507X_DCDC_2:
+ if (tps->info[rid]->defdcdc_default)
+ reg = TPS6507X_REG_DEFDCDC2_HIGH;
+ else
+ reg = TPS6507X_REG_DEFDCDC2_LOW;
+ mask = TPS6507X_DEFDCDCX_DCDC_MASK;
+ break;
+ case TPS6507X_DCDC_3:
+ if (tps->info[rid]->defdcdc_default)
+ reg = TPS6507X_REG_DEFDCDC3_HIGH;
+ else
+ reg = TPS6507X_REG_DEFDCDC3_LOW;
+ mask = TPS6507X_DEFDCDCX_DCDC_MASK;
+ break;
+ case TPS6507X_LDO_1:
+ reg = TPS6507X_REG_LDO_CTRL1;
+ mask = TPS6507X_REG_LDO_CTRL1_LDO1_MASK;
+ break;
+ case TPS6507X_LDO_2:
+ reg = TPS6507X_REG_DEFLDO2;
+ mask = TPS6507X_REG_DEFLDO2_LDO2_MASK;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ data = tps6507x_pmic_reg_read(tps, reg);
+ if (data < 0)
+ return data;
+
+ data &= mask;
+ return tps->info[rid]->table[data] * 1000;
+}
+
+static int tps6507x_pmic_set_voltage_sel(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
+ int data, rid = rdev_get_id(dev);
+ u8 reg, mask;
+
+ switch (rid) {
+ case TPS6507X_DCDC_1:
+ reg = TPS6507X_REG_DEFDCDC1;
+ mask = TPS6507X_DEFDCDCX_DCDC_MASK;
+ break;
+ case TPS6507X_DCDC_2:
+ if (tps->info[rid]->defdcdc_default)
+ reg = TPS6507X_REG_DEFDCDC2_HIGH;
+ else
+ reg = TPS6507X_REG_DEFDCDC2_LOW;
+ mask = TPS6507X_DEFDCDCX_DCDC_MASK;
+ break;
+ case TPS6507X_DCDC_3:
+ if (tps->info[rid]->defdcdc_default)
+ reg = TPS6507X_REG_DEFDCDC3_HIGH;
+ else
+ reg = TPS6507X_REG_DEFDCDC3_LOW;
+ mask = TPS6507X_DEFDCDCX_DCDC_MASK;
+ break;
+ case TPS6507X_LDO_1:
+ reg = TPS6507X_REG_LDO_CTRL1;
+ mask = TPS6507X_REG_LDO_CTRL1_LDO1_MASK;
+ break;
+ case TPS6507X_LDO_2:
+ reg = TPS6507X_REG_DEFLDO2;
+ mask = TPS6507X_REG_DEFLDO2_LDO2_MASK;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ data = tps6507x_pmic_reg_read(tps, reg);
+ if (data < 0)
+ return data;
+
+ data &= ~mask;
+ data |= selector;
+
+ return tps6507x_pmic_reg_write(tps, reg, data);
+}
+
+static int tps6507x_pmic_list_voltage(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps6507x_pmic *tps = rdev_get_drvdata(dev);
+ int rid = rdev_get_id(dev);
+
+ if (rid < TPS6507X_DCDC_1 || rid > TPS6507X_LDO_2)
+ return -EINVAL;
+
+ if (selector >= tps->info[rid]->table_len)
+ return -EINVAL;
+ else
+ return tps->info[rid]->table[selector] * 1000;
+}
+
+static struct regulator_ops tps6507x_pmic_ops = {
+ .is_enabled = tps6507x_pmic_is_enabled,
+ .enable = tps6507x_pmic_enable,
+ .disable = tps6507x_pmic_disable,
+ .get_voltage = tps6507x_pmic_get_voltage,
+ .set_voltage_sel = tps6507x_pmic_set_voltage_sel,
+ .list_voltage = tps6507x_pmic_list_voltage,
+};
+
+static __devinit int tps6507x_pmic_probe(struct platform_device *pdev)
+{
+ struct tps6507x_dev *tps6507x_dev = dev_get_drvdata(pdev->dev.parent);
+ struct tps_info *info = &tps6507x_pmic_regs[0];
+ struct regulator_init_data *init_data;
+ struct regulator_dev *rdev;
+ struct tps6507x_pmic *tps;
+ struct tps6507x_board *tps_board;
+ int i;
+ int error;
+
+ /**
+ * tps_board points to pmic related constants
+ * coming from the board-evm file.
+ */
+
+ tps_board = dev_get_platdata(tps6507x_dev->dev);
+ if (!tps_board)
+ return -EINVAL;
+
+ /**
+ * init_data points to array of regulator_init structures
+ * coming from the board-evm file.
+ */
+ init_data = tps_board->tps6507x_pmic_init_data;
+ if (!init_data)
+ return -EINVAL;
+
+ tps = kzalloc(sizeof(*tps), GFP_KERNEL);
+ if (!tps)
+ return -ENOMEM;
+
+ mutex_init(&tps->io_lock);
+
+ /* common for all regulators */
+ tps->mfd = tps6507x_dev;
+
+ for (i = 0; i < TPS6507X_NUM_REGULATOR; i++, info++, init_data++) {
+ /* Register the regulators */
+ tps->info[i] = info;
+ if (init_data->driver_data) {
+ struct tps6507x_reg_platform_data *data =
+ init_data->driver_data;
+ tps->info[i]->defdcdc_default = data->defdcdc_default;
+ }
+
+ tps->desc[i].name = info->name;
+ tps->desc[i].id = i;
+ tps->desc[i].n_voltages = info->table_len;
+ tps->desc[i].ops = &tps6507x_pmic_ops;
+ tps->desc[i].type = REGULATOR_VOLTAGE;
+ tps->desc[i].owner = THIS_MODULE;
+
+ rdev = regulator_register(&tps->desc[i],
+ tps6507x_dev->dev, init_data, tps, NULL);
+ if (IS_ERR(rdev)) {
+ dev_err(tps6507x_dev->dev,
+ "failed to register %s regulator\n",
+ pdev->name);
+ error = PTR_ERR(rdev);
+ goto fail;
+ }
+
+ /* Save regulator for cleanup */
+ tps->rdev[i] = rdev;
+ }
+
+ tps6507x_dev->pmic = tps;
+ platform_set_drvdata(pdev, tps6507x_dev);
+
+ return 0;
+
+fail:
+ while (--i >= 0)
+ regulator_unregister(tps->rdev[i]);
+
+ kfree(tps);
+ return error;
+}
+
+static int __devexit tps6507x_pmic_remove(struct platform_device *pdev)
+{
+ struct tps6507x_dev *tps6507x_dev = platform_get_drvdata(pdev);
+ struct tps6507x_pmic *tps = tps6507x_dev->pmic;
+ int i;
+
+ for (i = 0; i < TPS6507X_NUM_REGULATOR; i++)
+ regulator_unregister(tps->rdev[i]);
+
+ kfree(tps);
+
+ return 0;
+}
+
+static struct platform_driver tps6507x_pmic_driver = {
+ .driver = {
+ .name = "tps6507x-pmic",
+ .owner = THIS_MODULE,
+ },
+ .probe = tps6507x_pmic_probe,
+ .remove = __devexit_p(tps6507x_pmic_remove),
+};
+
+static int __init tps6507x_pmic_init(void)
+{
+ return platform_driver_register(&tps6507x_pmic_driver);
+}
+subsys_initcall(tps6507x_pmic_init);
+
+static void __exit tps6507x_pmic_cleanup(void)
+{
+ platform_driver_unregister(&tps6507x_pmic_driver);
+}
+module_exit(tps6507x_pmic_cleanup);
+
+MODULE_AUTHOR("Texas Instruments");
+MODULE_DESCRIPTION("TPS6507x voltage regulator driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:tps6507x-pmic");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/tps65217-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/tps65217-regulator.c
new file mode 100644
index 0000000..e39521b
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/tps65217-regulator.c
@@ -0,0 +1,378 @@
+/*
+ * tps65217-regulator.c
+ *
+ * Regulator driver for TPS65217 PMIC
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/tps65217.h>
+
+#define TPS65217_REGULATOR(_name, _id, _ops, _n) \
+ { \
+ .name = _name, \
+ .id = _id, \
+ .ops = &_ops, \
+ .n_voltages = _n, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ } \
+
+#define TPS65217_INFO(_nm, _min, _max, _f1, _f2, _t, _n, _em, _vr, _vm) \
+ { \
+ .name = _nm, \
+ .min_uV = _min, \
+ .max_uV = _max, \
+ .vsel_to_uv = _f1, \
+ .uv_to_vsel = _f2, \
+ .table = _t, \
+ .table_len = _n, \
+ .enable_mask = _em, \
+ .set_vout_reg = _vr, \
+ .set_vout_mask = _vm, \
+ }
+
+static const int LDO1_VSEL_table[] = {
+ 1000000, 1100000, 1200000, 1250000,
+ 1300000, 1350000, 1400000, 1500000,
+ 1600000, 1800000, 2500000, 2750000,
+ 2800000, 3000000, 3100000, 3300000,
+};
+
+static int tps65217_vsel_to_uv1(unsigned int vsel)
+{
+ int uV = 0;
+
+ if (vsel > 63)
+ return -EINVAL;
+
+ if (vsel <= 24)
+ uV = vsel * 25000 + 900000;
+ else if (vsel <= 52)
+ uV = (vsel - 24) * 50000 + 1500000;
+ else if (vsel < 56)
+ uV = (vsel - 52) * 100000 + 2900000;
+ else
+ uV = 3300000;
+
+ return uV;
+}
+
+static int tps65217_uv_to_vsel1(int uV, unsigned int *vsel)
+{
+ if ((uV < 0) && (uV > 3300000))
+ return -EINVAL;
+
+ if (uV <= 1500000)
+ *vsel = DIV_ROUND_UP(uV - 900000, 25000);
+ else if (uV <= 2900000)
+ *vsel = 24 + DIV_ROUND_UP(uV - 1500000, 50000);
+ else if (uV < 3300000)
+ *vsel = 52 + DIV_ROUND_UP(uV - 2900000, 100000);
+ else
+ *vsel = 56;
+
+ return 0;
+}
+
+static int tps65217_vsel_to_uv2(unsigned int vsel)
+{
+ int uV = 0;
+
+ if (vsel > 31)
+ return -EINVAL;
+
+ if (vsel <= 8)
+ uV = vsel * 50000 + 1500000;
+ else if (vsel <= 13)
+ uV = (vsel - 8) * 100000 + 1900000;
+ else
+ uV = (vsel - 13) * 50000 + 2400000;
+
+ return uV;
+}
+
+static int tps65217_uv_to_vsel2(int uV, unsigned int *vsel)
+{
+ if ((uV < 0) && (uV > 3300000))
+ return -EINVAL;
+
+ if (uV <= 1900000)
+ *vsel = DIV_ROUND_UP(uV - 1500000, 50000);
+ else if (uV <= 2400000)
+ *vsel = 8 + DIV_ROUND_UP(uV - 1900000, 100000);
+ else
+ *vsel = 13 + DIV_ROUND_UP(uV - 2400000, 50000);
+
+ return 0;
+}
+
+static struct tps_info tps65217_pmic_regs[] = {
+ TPS65217_INFO("DCDC1", 900000, 1800000, tps65217_vsel_to_uv1,
+ tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_DC1_EN,
+ TPS65217_REG_DEFDCDC1, TPS65217_DEFDCDCX_DCDC_MASK),
+ TPS65217_INFO("DCDC2", 900000, 3300000, tps65217_vsel_to_uv1,
+ tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_DC2_EN,
+ TPS65217_REG_DEFDCDC2, TPS65217_DEFDCDCX_DCDC_MASK),
+ TPS65217_INFO("DCDC3", 900000, 1500000, tps65217_vsel_to_uv1,
+ tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_DC3_EN,
+ TPS65217_REG_DEFDCDC3, TPS65217_DEFDCDCX_DCDC_MASK),
+ TPS65217_INFO("LDO1", 1000000, 3300000, NULL, NULL, LDO1_VSEL_table,
+ 16, TPS65217_ENABLE_LDO1_EN, TPS65217_REG_DEFLDO1,
+ TPS65217_DEFLDO1_LDO1_MASK),
+ TPS65217_INFO("LDO2", 900000, 3300000, tps65217_vsel_to_uv1,
+ tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_LDO2_EN,
+ TPS65217_REG_DEFLDO2, TPS65217_DEFLDO2_LDO2_MASK),
+ TPS65217_INFO("LDO3", 1800000, 3300000, tps65217_vsel_to_uv2,
+ tps65217_uv_to_vsel2, NULL, 32,
+ TPS65217_ENABLE_LS1_EN | TPS65217_DEFLDO3_LDO3_EN,
+ TPS65217_REG_DEFLS1, TPS65217_DEFLDO3_LDO3_MASK),
+ TPS65217_INFO("LDO4", 1800000, 3300000, tps65217_vsel_to_uv2,
+ tps65217_uv_to_vsel2, NULL, 32,
+ TPS65217_ENABLE_LS2_EN | TPS65217_DEFLDO4_LDO4_EN,
+ TPS65217_REG_DEFLS2, TPS65217_DEFLDO4_LDO4_MASK),
+};
+
+static int tps65217_pmic_is_enabled(struct regulator_dev *dev)
+{
+ int ret;
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ unsigned int data, rid = rdev_get_id(dev);
+
+ if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
+ return -EINVAL;
+
+ ret = tps65217_reg_read(tps, TPS65217_REG_ENABLE, &data);
+ if (ret)
+ return ret;
+
+ return (data & tps->info[rid]->enable_mask) ? 1 : 0;
+}
+
+static int tps65217_pmic_enable(struct regulator_dev *dev)
+{
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ unsigned int rid = rdev_get_id(dev);
+
+ if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
+ return -EINVAL;
+
+ /* Enable the regulator and password protection is level 1 */
+ return tps65217_set_bits(tps, TPS65217_REG_ENABLE,
+ tps->info[rid]->enable_mask,
+ tps->info[rid]->enable_mask,
+ TPS65217_PROTECT_L1);
+}
+
+static int tps65217_pmic_disable(struct regulator_dev *dev)
+{
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ unsigned int rid = rdev_get_id(dev);
+
+ if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
+ return -EINVAL;
+
+ /* Disable the regulator and password protection is level 1 */
+ return tps65217_clear_bits(tps, TPS65217_REG_ENABLE,
+ tps->info[rid]->enable_mask, TPS65217_PROTECT_L1);
+}
+
+static int tps65217_pmic_get_voltage_sel(struct regulator_dev *dev)
+{
+ int ret;
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ unsigned int selector, rid = rdev_get_id(dev);
+
+ if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
+ return -EINVAL;
+
+ ret = tps65217_reg_read(tps, tps->info[rid]->set_vout_reg, &selector);
+ if (ret)
+ return ret;
+
+ selector &= tps->info[rid]->set_vout_mask;
+
+ return selector;
+}
+
+static int tps65217_pmic_ldo1_set_voltage_sel(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ int ldo = rdev_get_id(dev);
+
+ if (ldo != TPS65217_LDO_1)
+ return -EINVAL;
+
+ if (selector >= tps->info[ldo]->table_len)
+ return -EINVAL;
+
+ /* Set the voltage based on vsel value and write protect level is 2 */
+ return tps65217_set_bits(tps, tps->info[ldo]->set_vout_reg,
+ tps->info[ldo]->set_vout_mask,
+ selector, TPS65217_PROTECT_L2);
+}
+
+static int tps65217_pmic_set_voltage(struct regulator_dev *dev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ int ret;
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ unsigned int rid = rdev_get_id(dev);
+
+ /* LDO1 implements set_voltage_sel callback */
+ if (rid == TPS65217_LDO_1)
+ return -EINVAL;
+
+ if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
+ return -EINVAL;
+
+ if (min_uV < tps->info[rid]->min_uV
+ || min_uV > tps->info[rid]->max_uV)
+ return -EINVAL;
+
+ if (max_uV < tps->info[rid]->min_uV
+ || max_uV > tps->info[rid]->max_uV)
+ return -EINVAL;
+
+ ret = tps->info[rid]->uv_to_vsel(min_uV, selector);
+ if (ret)
+ return ret;
+
+ /* Set the voltage based on vsel value and write protect level is 2 */
+ ret = tps65217_set_bits(tps, tps->info[rid]->set_vout_reg,
+ tps->info[rid]->set_vout_mask,
+ *selector, TPS65217_PROTECT_L2);
+
+ /* Set GO bit for DCDCx to initiate voltage transistion */
+ switch (rid) {
+ case TPS65217_DCDC_1 ... TPS65217_DCDC_3:
+ ret = tps65217_set_bits(tps, TPS65217_REG_DEFSLEW,
+ TPS65217_DEFSLEW_GO, TPS65217_DEFSLEW_GO,
+ TPS65217_PROTECT_L2);
+ break;
+ }
+
+ return ret;
+}
+
+static int tps65217_pmic_list_voltage(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps65217 *tps = rdev_get_drvdata(dev);
+ unsigned int rid = rdev_get_id(dev);
+
+ if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
+ return -EINVAL;
+
+ if (selector >= tps->info[rid]->table_len)
+ return -EINVAL;
+
+ if (tps->info[rid]->table)
+ return tps->info[rid]->table[selector];
+
+ return tps->info[rid]->vsel_to_uv(selector);
+}
+
+/* Operations permitted on DCDCx, LDO2, LDO3 and LDO4 */
+static struct regulator_ops tps65217_pmic_ops = {
+ .is_enabled = tps65217_pmic_is_enabled,
+ .enable = tps65217_pmic_enable,
+ .disable = tps65217_pmic_disable,
+ .get_voltage_sel = tps65217_pmic_get_voltage_sel,
+ .set_voltage = tps65217_pmic_set_voltage,
+ .list_voltage = tps65217_pmic_list_voltage,
+};
+
+/* Operations permitted on LDO1 */
+static struct regulator_ops tps65217_pmic_ldo1_ops = {
+ .is_enabled = tps65217_pmic_is_enabled,
+ .enable = tps65217_pmic_enable,
+ .disable = tps65217_pmic_disable,
+ .get_voltage_sel = tps65217_pmic_get_voltage_sel,
+ .set_voltage_sel = tps65217_pmic_ldo1_set_voltage_sel,
+ .list_voltage = tps65217_pmic_list_voltage,
+};
+
+static struct regulator_desc regulators[] = {
+ TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1, tps65217_pmic_ops, 64),
+ TPS65217_REGULATOR("DCDC2", TPS65217_DCDC_2, tps65217_pmic_ops, 64),
+ TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3, tps65217_pmic_ops, 64),
+ TPS65217_REGULATOR("LDO1", TPS65217_LDO_1, tps65217_pmic_ldo1_ops, 16),
+ TPS65217_REGULATOR("LDO2", TPS65217_LDO_2, tps65217_pmic_ops, 64),
+ TPS65217_REGULATOR("LDO3", TPS65217_LDO_3, tps65217_pmic_ops, 32),
+ TPS65217_REGULATOR("LDO4", TPS65217_LDO_4, tps65217_pmic_ops, 32),
+};
+
+static int __devinit tps65217_regulator_probe(struct platform_device *pdev)
+{
+ struct regulator_dev *rdev;
+ struct tps65217 *tps;
+ struct tps_info *info = &tps65217_pmic_regs[pdev->id];
+
+ /* Already set by core driver */
+ tps = dev_to_tps65217(pdev->dev.parent);
+ tps->info[pdev->id] = info;
+
+ rdev = regulator_register(®ulators[pdev->id], &pdev->dev,
+ pdev->dev.platform_data, tps, NULL);
+ if (IS_ERR(rdev))
+ return PTR_ERR(rdev);
+
+ platform_set_drvdata(pdev, rdev);
+
+ return 0;
+}
+
+static int __devexit tps65217_regulator_remove(struct platform_device *pdev)
+{
+ struct regulator_dev *rdev = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+ regulator_unregister(rdev);
+
+ return 0;
+}
+
+static struct platform_driver tps65217_regulator_driver = {
+ .driver = {
+ .name = "tps65217-pmic",
+ },
+ .probe = tps65217_regulator_probe,
+ .remove = __devexit_p(tps65217_regulator_remove),
+};
+
+static int __init tps65217_regulator_init(void)
+{
+ return platform_driver_register(&tps65217_regulator_driver);
+}
+subsys_initcall(tps65217_regulator_init);
+
+static void __exit tps65217_regulator_exit(void)
+{
+ platform_driver_unregister(&tps65217_regulator_driver);
+}
+module_exit(tps65217_regulator_exit);
+
+MODULE_AUTHOR("AnilKumar Ch <anilkumar@ti.com>");
+MODULE_DESCRIPTION("TPS65217 voltage regulator driver");
+MODULE_ALIAS("platform:tps65217-pmic");
+MODULE_LICENSE("GPL v2");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/tps6524x-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/tps6524x-regulator.c
new file mode 100644
index 0000000..4a421be
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/tps6524x-regulator.c
@@ -0,0 +1,691 @@
+/*
+ * Regulator driver for TPS6524x PMIC
+ *
+ * Copyright (C) 2010 Texas Instruments
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
+ * whether express or implied; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/spi/spi.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+
+#define REG_LDO_SET 0x0
+#define LDO_ILIM_MASK 1 /* 0 = 400-800, 1 = 900-1500 */
+#define LDO_VSEL_MASK 0x0f
+#define LDO2_ILIM_SHIFT 12
+#define LDO2_VSEL_SHIFT 4
+#define LDO1_ILIM_SHIFT 8
+#define LDO1_VSEL_SHIFT 0
+
+#define REG_BLOCK_EN 0x1
+#define BLOCK_MASK 1
+#define BLOCK_LDO1_SHIFT 0
+#define BLOCK_LDO2_SHIFT 1
+#define BLOCK_LCD_SHIFT 2
+#define BLOCK_USB_SHIFT 3
+
+#define REG_DCDC_SET 0x2
+#define DCDC_VDCDC_MASK 0x1f
+#define DCDC_VDCDC1_SHIFT 0
+#define DCDC_VDCDC2_SHIFT 5
+#define DCDC_VDCDC3_SHIFT 10
+
+#define REG_DCDC_EN 0x3
+#define DCDCDCDC_EN_MASK 0x1
+#define DCDCDCDC1_EN_SHIFT 0
+#define DCDCDCDC1_PG_MSK BIT(1)
+#define DCDCDCDC2_EN_SHIFT 2
+#define DCDCDCDC2_PG_MSK BIT(3)
+#define DCDCDCDC3_EN_SHIFT 4
+#define DCDCDCDC3_PG_MSK BIT(5)
+
+#define REG_USB 0x4
+#define USB_ILIM_SHIFT 0
+#define USB_ILIM_MASK 0x3
+#define USB_TSD_SHIFT 2
+#define USB_TSD_MASK 0x3
+#define USB_TWARN_SHIFT 4
+#define USB_TWARN_MASK 0x3
+#define USB_IWARN_SD BIT(6)
+#define USB_FAST_LOOP BIT(7)
+
+#define REG_ALARM 0x5
+#define ALARM_LDO1 BIT(0)
+#define ALARM_DCDC1 BIT(1)
+#define ALARM_DCDC2 BIT(2)
+#define ALARM_DCDC3 BIT(3)
+#define ALARM_LDO2 BIT(4)
+#define ALARM_USB_WARN BIT(5)
+#define ALARM_USB_ALARM BIT(6)
+#define ALARM_LCD BIT(9)
+#define ALARM_TEMP_WARM BIT(10)
+#define ALARM_TEMP_HOT BIT(11)
+#define ALARM_NRST BIT(14)
+#define ALARM_POWERUP BIT(15)
+
+#define REG_INT_ENABLE 0x6
+#define INT_LDO1 BIT(0)
+#define INT_DCDC1 BIT(1)
+#define INT_DCDC2 BIT(2)
+#define INT_DCDC3 BIT(3)
+#define INT_LDO2 BIT(4)
+#define INT_USB_WARN BIT(5)
+#define INT_USB_ALARM BIT(6)
+#define INT_LCD BIT(9)
+#define INT_TEMP_WARM BIT(10)
+#define INT_TEMP_HOT BIT(11)
+#define INT_GLOBAL_EN BIT(15)
+
+#define REG_INT_STATUS 0x7
+#define STATUS_LDO1 BIT(0)
+#define STATUS_DCDC1 BIT(1)
+#define STATUS_DCDC2 BIT(2)
+#define STATUS_DCDC3 BIT(3)
+#define STATUS_LDO2 BIT(4)
+#define STATUS_USB_WARN BIT(5)
+#define STATUS_USB_ALARM BIT(6)
+#define STATUS_LCD BIT(9)
+#define STATUS_TEMP_WARM BIT(10)
+#define STATUS_TEMP_HOT BIT(11)
+
+#define REG_SOFTWARE_RESET 0xb
+#define REG_WRITE_ENABLE 0xd
+#define REG_REV_ID 0xf
+
+#define N_DCDC 3
+#define N_LDO 2
+#define N_SWITCH 2
+#define N_REGULATORS (N_DCDC + N_LDO + N_SWITCH)
+
+#define FIXED_ILIMSEL BIT(0)
+#define FIXED_VOLTAGE BIT(1)
+
+#define CMD_READ(reg) ((reg) << 6)
+#define CMD_WRITE(reg) (BIT(5) | (reg) << 6)
+#define STAT_CLK BIT(3)
+#define STAT_WRITE BIT(2)
+#define STAT_INVALID BIT(1)
+#define STAT_WP BIT(0)
+
+struct field {
+ int reg;
+ int shift;
+ int mask;
+};
+
+struct supply_info {
+ const char *name;
+ int n_voltages;
+ const int *voltages;
+ int fixed_voltage;
+ int n_ilimsels;
+ const int *ilimsels;
+ int fixed_ilimsel;
+ int flags;
+ struct field enable, voltage, ilimsel;
+};
+
+struct tps6524x {
+ struct device *dev;
+ struct spi_device *spi;
+ struct mutex lock;
+ struct regulator_desc desc[N_REGULATORS];
+ struct regulator_dev *rdev[N_REGULATORS];
+};
+
+static int __read_reg(struct tps6524x *hw, int reg)
+{
+ int error = 0;
+ u16 cmd = CMD_READ(reg), in;
+ u8 status;
+ struct spi_message m;
+ struct spi_transfer t[3];
+
+ spi_message_init(&m);
+ memset(t, 0, sizeof(t));
+
+ t[0].tx_buf = &cmd;
+ t[0].len = 2;
+ t[0].bits_per_word = 12;
+ spi_message_add_tail(&t[0], &m);
+
+ t[1].rx_buf = ∈
+ t[1].len = 2;
+ t[1].bits_per_word = 16;
+ spi_message_add_tail(&t[1], &m);
+
+ t[2].rx_buf = &status;
+ t[2].len = 1;
+ t[2].bits_per_word = 4;
+ spi_message_add_tail(&t[2], &m);
+
+ error = spi_sync(hw->spi, &m);
+ if (error < 0)
+ return error;
+
+ dev_dbg(hw->dev, "read reg %d, data %x, status %x\n",
+ reg, in, status);
+
+ if (!(status & STAT_CLK) || (status & STAT_WRITE))
+ return -EIO;
+
+ if (status & STAT_INVALID)
+ return -EINVAL;
+
+ return in;
+}
+
+static int read_reg(struct tps6524x *hw, int reg)
+{
+ int ret;
+
+ mutex_lock(&hw->lock);
+ ret = __read_reg(hw, reg);
+ mutex_unlock(&hw->lock);
+
+ return ret;
+}
+
+static int __write_reg(struct tps6524x *hw, int reg, int val)
+{
+ int error = 0;
+ u16 cmd = CMD_WRITE(reg), out = val;
+ u8 status;
+ struct spi_message m;
+ struct spi_transfer t[3];
+
+ spi_message_init(&m);
+ memset(t, 0, sizeof(t));
+
+ t[0].tx_buf = &cmd;
+ t[0].len = 2;
+ t[0].bits_per_word = 12;
+ spi_message_add_tail(&t[0], &m);
+
+ t[1].tx_buf = &out;
+ t[1].len = 2;
+ t[1].bits_per_word = 16;
+ spi_message_add_tail(&t[1], &m);
+
+ t[2].rx_buf = &status;
+ t[2].len = 1;
+ t[2].bits_per_word = 4;
+ spi_message_add_tail(&t[2], &m);
+
+ error = spi_sync(hw->spi, &m);
+ if (error < 0)
+ return error;
+
+ dev_dbg(hw->dev, "wrote reg %d, data %x, status %x\n",
+ reg, out, status);
+
+ if (!(status & STAT_CLK) || !(status & STAT_WRITE))
+ return -EIO;
+
+ if (status & (STAT_INVALID | STAT_WP))
+ return -EINVAL;
+
+ return error;
+}
+
+static int __rmw_reg(struct tps6524x *hw, int reg, int mask, int val)
+{
+ int ret;
+
+ ret = __read_reg(hw, reg);
+ if (ret < 0)
+ return ret;
+
+ ret &= ~mask;
+ ret |= val;
+
+ ret = __write_reg(hw, reg, ret);
+
+ return (ret < 0) ? ret : 0;
+}
+
+static int rmw_protect(struct tps6524x *hw, int reg, int mask, int val)
+{
+ int ret;
+
+ mutex_lock(&hw->lock);
+
+ ret = __write_reg(hw, REG_WRITE_ENABLE, 1);
+ if (ret) {
+ dev_err(hw->dev, "failed to set write enable\n");
+ goto error;
+ }
+
+ ret = __rmw_reg(hw, reg, mask, val);
+ if (ret)
+ dev_err(hw->dev, "failed to rmw register %d\n", reg);
+
+ ret = __write_reg(hw, REG_WRITE_ENABLE, 0);
+ if (ret) {
+ dev_err(hw->dev, "failed to clear write enable\n");
+ goto error;
+ }
+
+error:
+ mutex_unlock(&hw->lock);
+
+ return ret;
+}
+
+static int read_field(struct tps6524x *hw, const struct field *field)
+{
+ int tmp;
+
+ tmp = read_reg(hw, field->reg);
+ if (tmp < 0)
+ return tmp;
+
+ return (tmp >> field->shift) & field->mask;
+}
+
+static int write_field(struct tps6524x *hw, const struct field *field,
+ int val)
+{
+ if (val & ~field->mask)
+ return -EOVERFLOW;
+
+ return rmw_protect(hw, field->reg,
+ field->mask << field->shift,
+ val << field->shift);
+}
+
+static const int dcdc1_voltages[] = {
+ 800000, 825000, 850000, 875000,
+ 900000, 925000, 950000, 975000,
+ 1000000, 1025000, 1050000, 1075000,
+ 1100000, 1125000, 1150000, 1175000,
+ 1200000, 1225000, 1250000, 1275000,
+ 1300000, 1325000, 1350000, 1375000,
+ 1400000, 1425000, 1450000, 1475000,
+ 1500000, 1525000, 1550000, 1575000,
+};
+
+static const int dcdc2_voltages[] = {
+ 1400000, 1450000, 1500000, 1550000,
+ 1600000, 1650000, 1700000, 1750000,
+ 1800000, 1850000, 1900000, 1950000,
+ 2000000, 2050000, 2100000, 2150000,
+ 2200000, 2250000, 2300000, 2350000,
+ 2400000, 2450000, 2500000, 2550000,
+ 2600000, 2650000, 2700000, 2750000,
+ 2800000, 2850000, 2900000, 2950000,
+};
+
+static const int dcdc3_voltages[] = {
+ 2400000, 2450000, 2500000, 2550000, 2600000,
+ 2650000, 2700000, 2750000, 2800000, 2850000,
+ 2900000, 2950000, 3000000, 3050000, 3100000,
+ 3150000, 3200000, 3250000, 3300000, 3350000,
+ 3400000, 3450000, 3500000, 3550000, 3600000,
+};
+
+static const int ldo1_voltages[] = {
+ 4300000, 4350000, 4400000, 4450000,
+ 4500000, 4550000, 4600000, 4650000,
+ 4700000, 4750000, 4800000, 4850000,
+ 4900000, 4950000, 5000000, 5050000,
+};
+
+static const int ldo2_voltages[] = {
+ 1100000, 1150000, 1200000, 1250000,
+ 1300000, 1700000, 1750000, 1800000,
+ 1850000, 1900000, 3150000, 3200000,
+ 3250000, 3300000, 3350000, 3400000,
+};
+
+static const int ldo_ilimsel[] = {
+ 400000, 1500000
+};
+
+static const int usb_ilimsel[] = {
+ 200000, 400000, 800000, 1000000
+};
+
+#define __MK_FIELD(_reg, _mask, _shift) \
+ { .reg = (_reg), .mask = (_mask), .shift = (_shift), }
+
+static const struct supply_info supply_info[N_REGULATORS] = {
+ {
+ .name = "DCDC1",
+ .flags = FIXED_ILIMSEL,
+ .n_voltages = ARRAY_SIZE(dcdc1_voltages),
+ .voltages = dcdc1_voltages,
+ .fixed_ilimsel = 2400000,
+ .enable = __MK_FIELD(REG_DCDC_EN, DCDCDCDC_EN_MASK,
+ DCDCDCDC1_EN_SHIFT),
+ .voltage = __MK_FIELD(REG_DCDC_SET, DCDC_VDCDC_MASK,
+ DCDC_VDCDC1_SHIFT),
+ },
+ {
+ .name = "DCDC2",
+ .flags = FIXED_ILIMSEL,
+ .n_voltages = ARRAY_SIZE(dcdc2_voltages),
+ .voltages = dcdc2_voltages,
+ .fixed_ilimsel = 1200000,
+ .enable = __MK_FIELD(REG_DCDC_EN, DCDCDCDC_EN_MASK,
+ DCDCDCDC2_EN_SHIFT),
+ .voltage = __MK_FIELD(REG_DCDC_SET, DCDC_VDCDC_MASK,
+ DCDC_VDCDC2_SHIFT),
+ },
+ {
+ .name = "DCDC3",
+ .flags = FIXED_ILIMSEL,
+ .n_voltages = ARRAY_SIZE(dcdc3_voltages),
+ .voltages = dcdc3_voltages,
+ .fixed_ilimsel = 1200000,
+ .enable = __MK_FIELD(REG_DCDC_EN, DCDCDCDC_EN_MASK,
+ DCDCDCDC3_EN_SHIFT),
+ .voltage = __MK_FIELD(REG_DCDC_SET, DCDC_VDCDC_MASK,
+ DCDC_VDCDC3_SHIFT),
+ },
+ {
+ .name = "LDO1",
+ .n_voltages = ARRAY_SIZE(ldo1_voltages),
+ .voltages = ldo1_voltages,
+ .n_ilimsels = ARRAY_SIZE(ldo_ilimsel),
+ .ilimsels = ldo_ilimsel,
+ .enable = __MK_FIELD(REG_BLOCK_EN, BLOCK_MASK,
+ BLOCK_LDO1_SHIFT),
+ .voltage = __MK_FIELD(REG_LDO_SET, LDO_VSEL_MASK,
+ LDO1_VSEL_SHIFT),
+ .ilimsel = __MK_FIELD(REG_LDO_SET, LDO_ILIM_MASK,
+ LDO1_ILIM_SHIFT),
+ },
+ {
+ .name = "LDO2",
+ .n_voltages = ARRAY_SIZE(ldo2_voltages),
+ .voltages = ldo2_voltages,
+ .n_ilimsels = ARRAY_SIZE(ldo_ilimsel),
+ .ilimsels = ldo_ilimsel,
+ .enable = __MK_FIELD(REG_BLOCK_EN, BLOCK_MASK,
+ BLOCK_LDO2_SHIFT),
+ .voltage = __MK_FIELD(REG_LDO_SET, LDO_VSEL_MASK,
+ LDO2_VSEL_SHIFT),
+ .ilimsel = __MK_FIELD(REG_LDO_SET, LDO_ILIM_MASK,
+ LDO2_ILIM_SHIFT),
+ },
+ {
+ .name = "USB",
+ .flags = FIXED_VOLTAGE,
+ .fixed_voltage = 5000000,
+ .n_ilimsels = ARRAY_SIZE(usb_ilimsel),
+ .ilimsels = usb_ilimsel,
+ .enable = __MK_FIELD(REG_BLOCK_EN, BLOCK_MASK,
+ BLOCK_USB_SHIFT),
+ .ilimsel = __MK_FIELD(REG_USB, USB_ILIM_MASK,
+ USB_ILIM_SHIFT),
+ },
+ {
+ .name = "LCD",
+ .flags = FIXED_VOLTAGE | FIXED_ILIMSEL,
+ .fixed_voltage = 5000000,
+ .fixed_ilimsel = 400000,
+ .enable = __MK_FIELD(REG_BLOCK_EN, BLOCK_MASK,
+ BLOCK_LCD_SHIFT),
+ },
+};
+
+static int list_voltage(struct regulator_dev *rdev, unsigned selector)
+{
+ const struct supply_info *info;
+ struct tps6524x *hw;
+
+ hw = rdev_get_drvdata(rdev);
+ info = &supply_info[rdev_get_id(rdev)];
+
+ if (info->flags & FIXED_VOLTAGE)
+ return selector ? -EINVAL : info->fixed_voltage;
+
+ return ((selector < info->n_voltages) ?
+ info->voltages[selector] : -EINVAL);
+}
+
+static int set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
+ unsigned *selector)
+{
+ const struct supply_info *info;
+ struct tps6524x *hw;
+ unsigned i;
+
+ hw = rdev_get_drvdata(rdev);
+ info = &supply_info[rdev_get_id(rdev)];
+
+ if (info->flags & FIXED_VOLTAGE)
+ return -EINVAL;
+
+ for (i = 0; i < info->n_voltages; i++)
+ if (min_uV <= info->voltages[i] &&
+ max_uV >= info->voltages[i])
+ break;
+
+ if (i >= info->n_voltages)
+ i = info->n_voltages - 1;
+
+ *selector = i;
+
+ return write_field(hw, &info->voltage, i);
+}
+
+static int get_voltage(struct regulator_dev *rdev)
+{
+ const struct supply_info *info;
+ struct tps6524x *hw;
+ int ret;
+
+ hw = rdev_get_drvdata(rdev);
+ info = &supply_info[rdev_get_id(rdev)];
+
+ if (info->flags & FIXED_VOLTAGE)
+ return info->fixed_voltage;
+
+ ret = read_field(hw, &info->voltage);
+ if (ret < 0)
+ return ret;
+ if (WARN_ON(ret >= info->n_voltages))
+ return -EIO;
+
+ return info->voltages[ret];
+}
+
+static int set_current_limit(struct regulator_dev *rdev, int min_uA,
+ int max_uA)
+{
+ const struct supply_info *info;
+ struct tps6524x *hw;
+ int i;
+
+ hw = rdev_get_drvdata(rdev);
+ info = &supply_info[rdev_get_id(rdev)];
+
+ if (info->flags & FIXED_ILIMSEL)
+ return -EINVAL;
+
+ for (i = 0; i < info->n_ilimsels; i++)
+ if (min_uA <= info->ilimsels[i] &&
+ max_uA >= info->ilimsels[i])
+ break;
+
+ if (i >= info->n_ilimsels)
+ return -EINVAL;
+
+ return write_field(hw, &info->ilimsel, i);
+}
+
+static int get_current_limit(struct regulator_dev *rdev)
+{
+ const struct supply_info *info;
+ struct tps6524x *hw;
+ int ret;
+
+ hw = rdev_get_drvdata(rdev);
+ info = &supply_info[rdev_get_id(rdev)];
+
+ if (info->flags & FIXED_ILIMSEL)
+ return info->fixed_ilimsel;
+
+ ret = read_field(hw, &info->ilimsel);
+ if (ret < 0)
+ return ret;
+ if (WARN_ON(ret >= info->n_ilimsels))
+ return -EIO;
+
+ return info->ilimsels[ret];
+}
+
+static int enable_supply(struct regulator_dev *rdev)
+{
+ const struct supply_info *info;
+ struct tps6524x *hw;
+
+ hw = rdev_get_drvdata(rdev);
+ info = &supply_info[rdev_get_id(rdev)];
+
+ return write_field(hw, &info->enable, 1);
+}
+
+static int disable_supply(struct regulator_dev *rdev)
+{
+ const struct supply_info *info;
+ struct tps6524x *hw;
+
+ hw = rdev_get_drvdata(rdev);
+ info = &supply_info[rdev_get_id(rdev)];
+
+ return write_field(hw, &info->enable, 0);
+}
+
+static int is_supply_enabled(struct regulator_dev *rdev)
+{
+ const struct supply_info *info;
+ struct tps6524x *hw;
+
+ hw = rdev_get_drvdata(rdev);
+ info = &supply_info[rdev_get_id(rdev)];
+
+ return read_field(hw, &info->enable);
+}
+
+static struct regulator_ops regulator_ops = {
+ .is_enabled = is_supply_enabled,
+ .enable = enable_supply,
+ .disable = disable_supply,
+ .get_voltage = get_voltage,
+ .set_voltage = set_voltage,
+ .list_voltage = list_voltage,
+ .set_current_limit = set_current_limit,
+ .get_current_limit = get_current_limit,
+};
+
+static int pmic_remove(struct spi_device *spi)
+{
+ struct tps6524x *hw = spi_get_drvdata(spi);
+ int i;
+
+ if (!hw)
+ return 0;
+ for (i = 0; i < N_REGULATORS; i++) {
+ if (hw->rdev[i])
+ regulator_unregister(hw->rdev[i]);
+ hw->rdev[i] = NULL;
+ }
+ spi_set_drvdata(spi, NULL);
+ kfree(hw);
+ return 0;
+}
+
+static int __devinit pmic_probe(struct spi_device *spi)
+{
+ struct tps6524x *hw;
+ struct device *dev = &spi->dev;
+ const struct supply_info *info = supply_info;
+ struct regulator_init_data *init_data;
+ int ret = 0, i;
+
+ init_data = dev->platform_data;
+ if (!init_data) {
+ dev_err(dev, "could not find regulator platform data\n");
+ return -EINVAL;
+ }
+
+ hw = kzalloc(sizeof(struct tps6524x), GFP_KERNEL);
+ if (!hw) {
+ dev_err(dev, "cannot allocate regulator private data\n");
+ return -ENOMEM;
+ }
+ spi_set_drvdata(spi, hw);
+
+ memset(hw, 0, sizeof(struct tps6524x));
+ hw->dev = dev;
+ hw->spi = spi_dev_get(spi);
+ mutex_init(&hw->lock);
+
+ for (i = 0; i < N_REGULATORS; i++, info++, init_data++) {
+ hw->desc[i].name = info->name;
+ hw->desc[i].id = i;
+ hw->desc[i].n_voltages = info->n_voltages;
+ hw->desc[i].ops = ®ulator_ops;
+ hw->desc[i].type = REGULATOR_VOLTAGE;
+ hw->desc[i].owner = THIS_MODULE;
+
+ if (info->flags & FIXED_VOLTAGE)
+ hw->desc[i].n_voltages = 1;
+
+ hw->rdev[i] = regulator_register(&hw->desc[i], dev,
+ init_data, hw, NULL);
+ if (IS_ERR(hw->rdev[i])) {
+ ret = PTR_ERR(hw->rdev[i]);
+ hw->rdev[i] = NULL;
+ goto fail;
+ }
+ }
+
+ return 0;
+
+fail:
+ pmic_remove(spi);
+ return ret;
+}
+
+static struct spi_driver pmic_driver = {
+ .probe = pmic_probe,
+ .remove = __devexit_p(pmic_remove),
+ .driver = {
+ .name = "tps6524x",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init pmic_driver_init(void)
+{
+ return spi_register_driver(&pmic_driver);
+}
+module_init(pmic_driver_init);
+
+static void __exit pmic_driver_exit(void)
+{
+ spi_unregister_driver(&pmic_driver);
+}
+module_exit(pmic_driver_exit);
+
+MODULE_DESCRIPTION("TPS6524X PMIC Driver");
+MODULE_AUTHOR("Cyril Chemparathy");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("spi:tps6524x");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/tps6586x-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/tps6586x-regulator.c
new file mode 100644
index 0000000..cfc1f16
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/tps6586x-regulator.c
@@ -0,0 +1,448 @@
+/*
+ * Regulator driver for TI TPS6586x
+ *
+ * Copyright (C) 2010 Compulab Ltd.
+ * Author: Mike Rapoport <mike@compulab.co.il>
+ *
+ * Based on da903x
+ * Copyright (C) 2006-2008 Marvell International Ltd.
+ * Copyright (C) 2008 Compulab Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/tps6586x.h>
+
+/* supply control and voltage setting */
+#define TPS6586X_SUPPLYENA 0x10
+#define TPS6586X_SUPPLYENB 0x11
+#define TPS6586X_SUPPLYENC 0x12
+#define TPS6586X_SUPPLYEND 0x13
+#define TPS6586X_SUPPLYENE 0x14
+#define TPS6586X_VCC1 0x20
+#define TPS6586X_VCC2 0x21
+#define TPS6586X_SM1V1 0x23
+#define TPS6586X_SM1V2 0x24
+#define TPS6586X_SM1SL 0x25
+#define TPS6586X_SM0V1 0x26
+#define TPS6586X_SM0V2 0x27
+#define TPS6586X_SM0SL 0x28
+#define TPS6586X_LDO2AV1 0x29
+#define TPS6586X_LDO2AV2 0x2A
+#define TPS6586X_LDO2BV1 0x2F
+#define TPS6586X_LDO2BV2 0x30
+#define TPS6586X_LDO4V1 0x32
+#define TPS6586X_LDO4V2 0x33
+
+/* converter settings */
+#define TPS6586X_SUPPLYV1 0x41
+#define TPS6586X_SUPPLYV2 0x42
+#define TPS6586X_SUPPLYV3 0x43
+#define TPS6586X_SUPPLYV4 0x44
+#define TPS6586X_SUPPLYV5 0x45
+#define TPS6586X_SUPPLYV6 0x46
+#define TPS6586X_SMODE1 0x47
+#define TPS6586X_SMODE2 0x48
+
+struct tps6586x_regulator {
+ struct regulator_desc desc;
+
+ int volt_reg;
+ int volt_shift;
+ int volt_nbits;
+ int enable_bit[2];
+ int enable_reg[2];
+
+ int *voltages;
+
+ /* for DVM regulators */
+ int go_reg;
+ int go_bit;
+};
+
+static inline struct device *to_tps6586x_dev(struct regulator_dev *rdev)
+{
+ return rdev_get_dev(rdev)->parent->parent;
+}
+
+static int tps6586x_ldo_list_voltage(struct regulator_dev *rdev,
+ unsigned selector)
+{
+ struct tps6586x_regulator *info = rdev_get_drvdata(rdev);
+ int rid = rdev_get_id(rdev);
+
+ /* LDO0 has minimal voltage 1.2V rather than 1.25V */
+ if ((rid == TPS6586X_ID_LDO_0) && (selector == 0))
+ return (info->voltages[0] - 50) * 1000;
+
+ return info->voltages[selector] * 1000;
+}
+
+
+static int __tps6586x_ldo_set_voltage(struct device *parent,
+ struct tps6586x_regulator *ri,
+ int min_uV, int max_uV,
+ unsigned *selector)
+{
+ int val, uV;
+ uint8_t mask;
+
+ for (val = 0; val < ri->desc.n_voltages; val++) {
+ uV = ri->voltages[val] * 1000;
+
+ /* LDO0 has minimal voltage 1.2 rather than 1.25 */
+ if (ri->desc.id == TPS6586X_ID_LDO_0 && val == 0)
+ uV -= 50 * 1000;
+
+ /* use the first in-range value */
+ if (min_uV <= uV && uV <= max_uV) {
+
+ *selector = val;
+
+ val <<= ri->volt_shift;
+ mask = ((1 << ri->volt_nbits) - 1) << ri->volt_shift;
+
+ return tps6586x_update(parent, ri->volt_reg, val, mask);
+ }
+ }
+
+ return -EINVAL;
+}
+
+static int tps6586x_ldo_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct tps6586x_regulator *ri = rdev_get_drvdata(rdev);
+ struct device *parent = to_tps6586x_dev(rdev);
+
+ return __tps6586x_ldo_set_voltage(parent, ri, min_uV, max_uV,
+ selector);
+}
+
+static int tps6586x_ldo_get_voltage(struct regulator_dev *rdev)
+{
+ struct tps6586x_regulator *ri = rdev_get_drvdata(rdev);
+ struct device *parent = to_tps6586x_dev(rdev);
+ uint8_t val, mask;
+ int ret;
+
+ ret = tps6586x_read(parent, ri->volt_reg, &val);
+ if (ret)
+ return ret;
+
+ mask = ((1 << ri->volt_nbits) - 1) << ri->volt_shift;
+ val = (val & mask) >> ri->volt_shift;
+
+ if (val >= ri->desc.n_voltages)
+ BUG();
+
+ return ri->voltages[val] * 1000;
+}
+
+static int tps6586x_dvm_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct tps6586x_regulator *ri = rdev_get_drvdata(rdev);
+ struct device *parent = to_tps6586x_dev(rdev);
+ int ret;
+
+ ret = __tps6586x_ldo_set_voltage(parent, ri, min_uV, max_uV,
+ selector);
+ if (ret)
+ return ret;
+
+ return tps6586x_set_bits(parent, ri->go_reg, 1 << ri->go_bit);
+}
+
+static int tps6586x_regulator_enable(struct regulator_dev *rdev)
+{
+ struct tps6586x_regulator *ri = rdev_get_drvdata(rdev);
+ struct device *parent = to_tps6586x_dev(rdev);
+
+ return tps6586x_set_bits(parent, ri->enable_reg[0],
+ 1 << ri->enable_bit[0]);
+}
+
+static int tps6586x_regulator_disable(struct regulator_dev *rdev)
+{
+ struct tps6586x_regulator *ri = rdev_get_drvdata(rdev);
+ struct device *parent = to_tps6586x_dev(rdev);
+
+ return tps6586x_clr_bits(parent, ri->enable_reg[0],
+ 1 << ri->enable_bit[0]);
+}
+
+static int tps6586x_regulator_is_enabled(struct regulator_dev *rdev)
+{
+ struct tps6586x_regulator *ri = rdev_get_drvdata(rdev);
+ struct device *parent = to_tps6586x_dev(rdev);
+ uint8_t reg_val;
+ int ret;
+
+ ret = tps6586x_read(parent, ri->enable_reg[0], ®_val);
+ if (ret)
+ return ret;
+
+ return !!(reg_val & (1 << ri->enable_bit[0]));
+}
+
+static struct regulator_ops tps6586x_regulator_ldo_ops = {
+ .list_voltage = tps6586x_ldo_list_voltage,
+ .get_voltage = tps6586x_ldo_get_voltage,
+ .set_voltage = tps6586x_ldo_set_voltage,
+
+ .is_enabled = tps6586x_regulator_is_enabled,
+ .enable = tps6586x_regulator_enable,
+ .disable = tps6586x_regulator_disable,
+};
+
+static struct regulator_ops tps6586x_regulator_dvm_ops = {
+ .list_voltage = tps6586x_ldo_list_voltage,
+ .get_voltage = tps6586x_ldo_get_voltage,
+ .set_voltage = tps6586x_dvm_set_voltage,
+
+ .is_enabled = tps6586x_regulator_is_enabled,
+ .enable = tps6586x_regulator_enable,
+ .disable = tps6586x_regulator_disable,
+};
+
+static int tps6586x_ldo_voltages[] = {
+ 1250, 1500, 1800, 2500, 2700, 2850, 3100, 3300,
+};
+
+static int tps6586x_ldo4_voltages[] = {
+ 1700, 1725, 1750, 1775, 1800, 1825, 1850, 1875,
+ 1900, 1925, 1950, 1975, 2000, 2025, 2050, 2075,
+ 2100, 2125, 2150, 2175, 2200, 2225, 2250, 2275,
+ 2300, 2325, 2350, 2375, 2400, 2425, 2450, 2475,
+};
+
+static int tps6586x_sm2_voltages[] = {
+ 3000, 3050, 3100, 3150, 3200, 3250, 3300, 3350,
+ 3400, 3450, 3500, 3550, 3600, 3650, 3700, 3750,
+ 3800, 3850, 3900, 3950, 4000, 4050, 4100, 4150,
+ 4200, 4250, 4300, 4350, 4400, 4450, 4500, 4550,
+};
+
+static int tps6586x_dvm_voltages[] = {
+ 725, 750, 775, 800, 825, 850, 875, 900,
+ 925, 950, 975, 1000, 1025, 1050, 1075, 1100,
+ 1125, 1150, 1175, 1200, 1225, 1250, 1275, 1300,
+ 1325, 1350, 1375, 1400, 1425, 1450, 1475, 1500,
+};
+
+#define TPS6586X_REGULATOR(_id, vdata, _ops, vreg, shift, nbits, \
+ ereg0, ebit0, ereg1, ebit1) \
+ .desc = { \
+ .name = "REG-" #_id, \
+ .ops = &tps6586x_regulator_##_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = TPS6586X_ID_##_id, \
+ .n_voltages = ARRAY_SIZE(tps6586x_##vdata##_voltages), \
+ .owner = THIS_MODULE, \
+ }, \
+ .volt_reg = TPS6586X_##vreg, \
+ .volt_shift = (shift), \
+ .volt_nbits = (nbits), \
+ .enable_reg[0] = TPS6586X_SUPPLY##ereg0, \
+ .enable_bit[0] = (ebit0), \
+ .enable_reg[1] = TPS6586X_SUPPLY##ereg1, \
+ .enable_bit[1] = (ebit1), \
+ .voltages = tps6586x_##vdata##_voltages,
+
+#define TPS6586X_REGULATOR_DVM_GOREG(goreg, gobit) \
+ .go_reg = TPS6586X_##goreg, \
+ .go_bit = (gobit),
+
+#define TPS6586X_LDO(_id, vdata, vreg, shift, nbits, \
+ ereg0, ebit0, ereg1, ebit1) \
+{ \
+ TPS6586X_REGULATOR(_id, vdata, ldo_ops, vreg, shift, nbits, \
+ ereg0, ebit0, ereg1, ebit1) \
+}
+
+#define TPS6586X_DVM(_id, vdata, vreg, shift, nbits, \
+ ereg0, ebit0, ereg1, ebit1, goreg, gobit) \
+{ \
+ TPS6586X_REGULATOR(_id, vdata, dvm_ops, vreg, shift, nbits, \
+ ereg0, ebit0, ereg1, ebit1) \
+ TPS6586X_REGULATOR_DVM_GOREG(goreg, gobit) \
+}
+
+static struct tps6586x_regulator tps6586x_regulator[] = {
+ TPS6586X_LDO(LDO_0, ldo, SUPPLYV1, 5, 3, ENC, 0, END, 0),
+ TPS6586X_LDO(LDO_3, ldo, SUPPLYV4, 0, 3, ENC, 2, END, 2),
+ TPS6586X_LDO(LDO_5, ldo, SUPPLYV6, 0, 3, ENE, 6, ENE, 6),
+ TPS6586X_LDO(LDO_6, ldo, SUPPLYV3, 0, 3, ENC, 4, END, 4),
+ TPS6586X_LDO(LDO_7, ldo, SUPPLYV3, 3, 3, ENC, 5, END, 5),
+ TPS6586X_LDO(LDO_8, ldo, SUPPLYV2, 5, 3, ENC, 6, END, 6),
+ TPS6586X_LDO(LDO_9, ldo, SUPPLYV6, 3, 3, ENE, 7, ENE, 7),
+ TPS6586X_LDO(LDO_RTC, ldo, SUPPLYV4, 3, 3, V4, 7, V4, 7),
+ TPS6586X_LDO(LDO_1, dvm, SUPPLYV1, 0, 5, ENC, 1, END, 1),
+ TPS6586X_LDO(SM_2, sm2, SUPPLYV2, 0, 5, ENC, 7, END, 7),
+
+ TPS6586X_DVM(LDO_2, dvm, LDO2BV1, 0, 5, ENA, 3, ENB, 3, VCC2, 6),
+ TPS6586X_DVM(LDO_4, ldo4, LDO4V1, 0, 5, ENC, 3, END, 3, VCC1, 6),
+ TPS6586X_DVM(SM_0, dvm, SM0V1, 0, 5, ENA, 1, ENB, 1, VCC1, 2),
+ TPS6586X_DVM(SM_1, dvm, SM1V1, 0, 5, ENA, 0, ENB, 0, VCC1, 0),
+};
+
+/*
+ * TPS6586X has 2 enable bits that are OR'ed to determine the actual
+ * regulator state. Clearing one of this bits allows switching
+ * regulator on and of with single register write.
+ */
+static inline int tps6586x_regulator_preinit(struct device *parent,
+ struct tps6586x_regulator *ri)
+{
+ uint8_t val1, val2;
+ int ret;
+
+ if (ri->enable_reg[0] == ri->enable_reg[1] &&
+ ri->enable_bit[0] == ri->enable_bit[1])
+ return 0;
+
+ ret = tps6586x_read(parent, ri->enable_reg[0], &val1);
+ if (ret)
+ return ret;
+
+ ret = tps6586x_read(parent, ri->enable_reg[1], &val2);
+ if (ret)
+ return ret;
+
+ if (!(val2 & (1 << ri->enable_bit[1])))
+ return 0;
+
+ /*
+ * The regulator is on, but it's enabled with the bit we don't
+ * want to use, so we switch the enable bits
+ */
+ if (!(val1 & (1 << ri->enable_bit[0]))) {
+ ret = tps6586x_set_bits(parent, ri->enable_reg[0],
+ 1 << ri->enable_bit[0]);
+ if (ret)
+ return ret;
+ }
+
+ return tps6586x_clr_bits(parent, ri->enable_reg[1],
+ 1 << ri->enable_bit[1]);
+}
+
+static int tps6586x_regulator_set_slew_rate(struct platform_device *pdev)
+{
+ struct device *parent = pdev->dev.parent;
+ struct regulator_init_data *p = pdev->dev.platform_data;
+ struct tps6586x_settings *setting = p->driver_data;
+ uint8_t reg;
+
+ if (setting == NULL)
+ return 0;
+
+ if (!(setting->slew_rate & TPS6586X_SLEW_RATE_SET))
+ return 0;
+
+ /* only SM0 and SM1 can have the slew rate settings */
+ switch (pdev->id) {
+ case TPS6586X_ID_SM_0:
+ reg = TPS6586X_SM0SL;
+ break;
+ case TPS6586X_ID_SM_1:
+ reg = TPS6586X_SM1SL;
+ break;
+ default:
+ dev_warn(&pdev->dev, "Only SM0/SM1 can set slew rate\n");
+ return -EINVAL;
+ }
+
+ return tps6586x_write(parent, reg,
+ setting->slew_rate & TPS6586X_SLEW_RATE_MASK);
+}
+
+static inline struct tps6586x_regulator *find_regulator_info(int id)
+{
+ struct tps6586x_regulator *ri;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(tps6586x_regulator); i++) {
+ ri = &tps6586x_regulator[i];
+ if (ri->desc.id == id)
+ return ri;
+ }
+ return NULL;
+}
+
+static int __devinit tps6586x_regulator_probe(struct platform_device *pdev)
+{
+ struct tps6586x_regulator *ri = NULL;
+ struct regulator_dev *rdev;
+ int id = pdev->id;
+ int err;
+
+ dev_dbg(&pdev->dev, "Probing regulator %d\n", id);
+
+ ri = find_regulator_info(id);
+ if (ri == NULL) {
+ dev_err(&pdev->dev, "invalid regulator ID specified\n");
+ return -EINVAL;
+ }
+
+ err = tps6586x_regulator_preinit(pdev->dev.parent, ri);
+ if (err)
+ return err;
+
+ rdev = regulator_register(&ri->desc, &pdev->dev,
+ pdev->dev.platform_data, ri, NULL);
+ if (IS_ERR(rdev)) {
+ dev_err(&pdev->dev, "failed to register regulator %s\n",
+ ri->desc.name);
+ return PTR_ERR(rdev);
+ }
+
+ platform_set_drvdata(pdev, rdev);
+
+ return tps6586x_regulator_set_slew_rate(pdev);
+}
+
+static int __devexit tps6586x_regulator_remove(struct platform_device *pdev)
+{
+ struct regulator_dev *rdev = platform_get_drvdata(pdev);
+
+ regulator_unregister(rdev);
+ return 0;
+}
+
+static struct platform_driver tps6586x_regulator_driver = {
+ .driver = {
+ .name = "tps6586x-regulator",
+ .owner = THIS_MODULE,
+ },
+ .probe = tps6586x_regulator_probe,
+ .remove = __devexit_p(tps6586x_regulator_remove),
+};
+
+static int __init tps6586x_regulator_init(void)
+{
+ return platform_driver_register(&tps6586x_regulator_driver);
+}
+subsys_initcall(tps6586x_regulator_init);
+
+static void __exit tps6586x_regulator_exit(void)
+{
+ platform_driver_unregister(&tps6586x_regulator_driver);
+}
+module_exit(tps6586x_regulator_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
+MODULE_DESCRIPTION("Regulator Driver for TI TPS6586X PMIC");
+MODULE_ALIAS("platform:tps6586x-regulator");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/tps65910-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/tps65910-regulator.c
new file mode 100644
index 0000000..4a37c2b
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/tps65910-regulator.c
@@ -0,0 +1,1307 @@
+/*
+ * tps65910.c -- TI tps65910
+ *
+ * Copyright 2010 Texas Instruments Inc.
+ *
+ * Author: Graeme Gregory <gg@slimlogic.co.uk>
+ * Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/mfd/tps65910.h>
+
+#define TPS65910_SUPPLY_STATE_ENABLED 0x1
+#define EXT_SLEEP_CONTROL (TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1 | \
+ TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2 | \
+ TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3 | \
+ TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
+
+/* supported VIO voltages in milivolts */
+static const u16 VIO_VSEL_table[] = {
+ 1500, 1800, 2500, 3300,
+};
+
+/* VSEL tables for TPS65910 specific LDOs and dcdc's */
+
+/* supported VDD3 voltages in milivolts */
+static const u16 VDD3_VSEL_table[] = {
+ 5000,
+};
+
+/* supported VDIG1 voltages in milivolts */
+static const u16 VDIG1_VSEL_table[] = {
+ 1200, 1500, 1800, 2700,
+};
+
+/* supported VDIG2 voltages in milivolts */
+static const u16 VDIG2_VSEL_table[] = {
+ 1000, 1100, 1200, 1800,
+};
+
+/* supported VPLL voltages in milivolts */
+static const u16 VPLL_VSEL_table[] = {
+ 1000, 1100, 1800, 2500,
+};
+
+/* supported VDAC voltages in milivolts */
+static const u16 VDAC_VSEL_table[] = {
+ 1800, 2600, 2800, 2850,
+};
+
+/* supported VAUX1 voltages in milivolts */
+static const u16 VAUX1_VSEL_table[] = {
+ 1800, 2500, 2800, 2850,
+};
+
+/* supported VAUX2 voltages in milivolts */
+static const u16 VAUX2_VSEL_table[] = {
+ 1800, 2800, 2900, 3300,
+};
+
+/* supported VAUX33 voltages in milivolts */
+static const u16 VAUX33_VSEL_table[] = {
+ 1800, 2000, 2800, 3300,
+};
+
+/* supported VMMC voltages in milivolts */
+static const u16 VMMC_VSEL_table[] = {
+ 1800, 2800, 3000, 3300,
+};
+
+struct tps_info {
+ const char *name;
+ unsigned min_uV;
+ unsigned max_uV;
+ u8 n_voltages;
+ const u16 *voltage_table;
+ int enable_time_us;
+};
+
+static struct tps_info tps65910_regs[] = {
+ {
+ .name = "VRTC",
+ .enable_time_us = 2200,
+ },
+ {
+ .name = "VIO",
+ .min_uV = 1500000,
+ .max_uV = 3300000,
+ .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
+ .voltage_table = VIO_VSEL_table,
+ .enable_time_us = 350,
+ },
+ {
+ .name = "VDD1",
+ .min_uV = 600000,
+ .max_uV = 4500000,
+ .enable_time_us = 350,
+ },
+ {
+ .name = "VDD2",
+ .min_uV = 600000,
+ .max_uV = 4500000,
+ .enable_time_us = 350,
+ },
+ {
+ .name = "VDD3",
+ .min_uV = 5000000,
+ .max_uV = 5000000,
+ .n_voltages = ARRAY_SIZE(VDD3_VSEL_table),
+ .voltage_table = VDD3_VSEL_table,
+ .enable_time_us = 200,
+ },
+ {
+ .name = "VDIG1",
+ .min_uV = 1200000,
+ .max_uV = 2700000,
+ .n_voltages = ARRAY_SIZE(VDIG1_VSEL_table),
+ .voltage_table = VDIG1_VSEL_table,
+ .enable_time_us = 100,
+ },
+ {
+ .name = "VDIG2",
+ .min_uV = 1000000,
+ .max_uV = 1800000,
+ .n_voltages = ARRAY_SIZE(VDIG2_VSEL_table),
+ .voltage_table = VDIG2_VSEL_table,
+ .enable_time_us = 100,
+ },
+ {
+ .name = "VPLL",
+ .min_uV = 1000000,
+ .max_uV = 2500000,
+ .n_voltages = ARRAY_SIZE(VPLL_VSEL_table),
+ .voltage_table = VPLL_VSEL_table,
+ .enable_time_us = 100,
+ },
+ {
+ .name = "VDAC",
+ .min_uV = 1800000,
+ .max_uV = 2850000,
+ .n_voltages = ARRAY_SIZE(VDAC_VSEL_table),
+ .voltage_table = VDAC_VSEL_table,
+ .enable_time_us = 100,
+ },
+ {
+ .name = "VAUX1",
+ .min_uV = 1800000,
+ .max_uV = 2850000,
+ .n_voltages = ARRAY_SIZE(VAUX1_VSEL_table),
+ .voltage_table = VAUX1_VSEL_table,
+ .enable_time_us = 100,
+ },
+ {
+ .name = "VAUX2",
+ .min_uV = 1800000,
+ .max_uV = 3300000,
+ .n_voltages = ARRAY_SIZE(VAUX2_VSEL_table),
+ .voltage_table = VAUX2_VSEL_table,
+ .enable_time_us = 100,
+ },
+ {
+ .name = "VAUX33",
+ .min_uV = 1800000,
+ .max_uV = 3300000,
+ .n_voltages = ARRAY_SIZE(VAUX33_VSEL_table),
+ .voltage_table = VAUX33_VSEL_table,
+ .enable_time_us = 100,
+ },
+ {
+ .name = "VMMC",
+ .min_uV = 1800000,
+ .max_uV = 3300000,
+ .n_voltages = ARRAY_SIZE(VMMC_VSEL_table),
+ .voltage_table = VMMC_VSEL_table,
+ .enable_time_us = 100,
+ },
+};
+
+static struct tps_info tps65911_regs[] = {
+ {
+ .name = "VRTC",
+ .enable_time_us = 2200,
+ },
+ {
+ .name = "VIO",
+ .min_uV = 1500000,
+ .max_uV = 3300000,
+ .n_voltages = ARRAY_SIZE(VIO_VSEL_table),
+ .voltage_table = VIO_VSEL_table,
+ .enable_time_us = 350,
+ },
+ {
+ .name = "VDD1",
+ .min_uV = 600000,
+ .max_uV = 4500000,
+ .n_voltages = 73,
+ .enable_time_us = 350,
+ },
+ {
+ .name = "VDD2",
+ .min_uV = 600000,
+ .max_uV = 4500000,
+ .n_voltages = 73,
+ .enable_time_us = 350,
+ },
+ {
+ .name = "VDDCTRL",
+ .min_uV = 600000,
+ .max_uV = 1400000,
+ .n_voltages = 65,
+ .enable_time_us = 900,
+ },
+ {
+ .name = "LDO1",
+ .min_uV = 1000000,
+ .max_uV = 3300000,
+ .n_voltages = 47,
+ .enable_time_us = 420,
+ },
+ {
+ .name = "LDO2",
+ .min_uV = 1000000,
+ .max_uV = 3300000,
+ .n_voltages = 47,
+ .enable_time_us = 420,
+ },
+ {
+ .name = "LDO3",
+ .min_uV = 1000000,
+ .max_uV = 3300000,
+ .n_voltages = 24,
+ .enable_time_us = 230,
+ },
+ {
+ .name = "LDO4",
+ .min_uV = 1000000,
+ .max_uV = 3300000,
+ .n_voltages = 47,
+ .enable_time_us = 230,
+ },
+ {
+ .name = "LDO5",
+ .min_uV = 1000000,
+ .max_uV = 3300000,
+ .n_voltages = 24,
+ .enable_time_us = 230,
+ },
+ {
+ .name = "LDO6",
+ .min_uV = 1000000,
+ .max_uV = 3300000,
+ .n_voltages = 24,
+ .enable_time_us = 230,
+ },
+ {
+ .name = "LDO7",
+ .min_uV = 1000000,
+ .max_uV = 3300000,
+ .n_voltages = 24,
+ .enable_time_us = 230,
+ },
+ {
+ .name = "LDO8",
+ .min_uV = 1000000,
+ .max_uV = 3300000,
+ .n_voltages = 24,
+ .enable_time_us = 230,
+ },
+};
+
+#define EXT_CONTROL_REG_BITS(id, regs_offs, bits) (((regs_offs) << 8) | (bits))
+static unsigned int tps65910_ext_sleep_control[] = {
+ 0,
+ EXT_CONTROL_REG_BITS(VIO, 1, 0),
+ EXT_CONTROL_REG_BITS(VDD1, 1, 1),
+ EXT_CONTROL_REG_BITS(VDD2, 1, 2),
+ EXT_CONTROL_REG_BITS(VDD3, 1, 3),
+ EXT_CONTROL_REG_BITS(VDIG1, 0, 1),
+ EXT_CONTROL_REG_BITS(VDIG2, 0, 2),
+ EXT_CONTROL_REG_BITS(VPLL, 0, 6),
+ EXT_CONTROL_REG_BITS(VDAC, 0, 7),
+ EXT_CONTROL_REG_BITS(VAUX1, 0, 3),
+ EXT_CONTROL_REG_BITS(VAUX2, 0, 4),
+ EXT_CONTROL_REG_BITS(VAUX33, 0, 5),
+ EXT_CONTROL_REG_BITS(VMMC, 0, 0),
+};
+
+static unsigned int tps65911_ext_sleep_control[] = {
+ 0,
+ EXT_CONTROL_REG_BITS(VIO, 1, 0),
+ EXT_CONTROL_REG_BITS(VDD1, 1, 1),
+ EXT_CONTROL_REG_BITS(VDD2, 1, 2),
+ EXT_CONTROL_REG_BITS(VDDCTRL, 1, 3),
+ EXT_CONTROL_REG_BITS(LDO1, 0, 1),
+ EXT_CONTROL_REG_BITS(LDO2, 0, 2),
+ EXT_CONTROL_REG_BITS(LDO3, 0, 7),
+ EXT_CONTROL_REG_BITS(LDO4, 0, 6),
+ EXT_CONTROL_REG_BITS(LDO5, 0, 3),
+ EXT_CONTROL_REG_BITS(LDO6, 0, 0),
+ EXT_CONTROL_REG_BITS(LDO7, 0, 5),
+ EXT_CONTROL_REG_BITS(LDO8, 0, 4),
+};
+
+struct tps65910_reg {
+ struct regulator_desc *desc;
+ struct tps65910 *mfd;
+ struct regulator_dev **rdev;
+ struct tps_info **info;
+ struct mutex mutex;
+ int num_regulators;
+ int mode;
+ int (*get_ctrl_reg)(int);
+ unsigned int *ext_sleep_control;
+ unsigned int board_ext_control[TPS65910_NUM_REGS];
+};
+
+static inline int tps65910_read(struct tps65910_reg *pmic, u8 reg)
+{
+ u8 val;
+ int err;
+
+ err = pmic->mfd->read(pmic->mfd, reg, 1, &val);
+ if (err)
+ return err;
+
+ return val;
+}
+
+static inline int tps65910_write(struct tps65910_reg *pmic, u8 reg, u8 val)
+{
+ return pmic->mfd->write(pmic->mfd, reg, 1, &val);
+}
+
+static int tps65910_modify_bits(struct tps65910_reg *pmic, u8 reg,
+ u8 set_mask, u8 clear_mask)
+{
+ int err, data;
+
+ mutex_lock(&pmic->mutex);
+
+ data = tps65910_read(pmic, reg);
+ if (data < 0) {
+ dev_err(pmic->mfd->dev, "Read from reg 0x%x failed\n", reg);
+ err = data;
+ goto out;
+ }
+
+ data &= ~clear_mask;
+ data |= set_mask;
+ err = tps65910_write(pmic, reg, data);
+ if (err)
+ dev_err(pmic->mfd->dev, "Write for reg 0x%x failed\n", reg);
+
+out:
+ mutex_unlock(&pmic->mutex);
+ return err;
+}
+
+static int tps65910_reg_read(struct tps65910_reg *pmic, u8 reg)
+{
+ int data;
+
+ mutex_lock(&pmic->mutex);
+
+ data = tps65910_read(pmic, reg);
+ if (data < 0)
+ dev_err(pmic->mfd->dev, "Read from reg 0x%x failed\n", reg);
+
+ mutex_unlock(&pmic->mutex);
+ return data;
+}
+
+static int tps65910_reg_write(struct tps65910_reg *pmic, u8 reg, u8 val)
+{
+ int err;
+
+ mutex_lock(&pmic->mutex);
+
+ err = tps65910_write(pmic, reg, val);
+ if (err < 0)
+ dev_err(pmic->mfd->dev, "Write for reg 0x%x failed\n", reg);
+
+ mutex_unlock(&pmic->mutex);
+ return err;
+}
+
+static int tps65910_get_ctrl_register(int id)
+{
+ switch (id) {
+ case TPS65910_REG_VRTC:
+ return TPS65910_VRTC;
+ case TPS65910_REG_VIO:
+ return TPS65910_VIO;
+ case TPS65910_REG_VDD1:
+ return TPS65910_VDD1;
+ case TPS65910_REG_VDD2:
+ return TPS65910_VDD2;
+ case TPS65910_REG_VDD3:
+ return TPS65910_VDD3;
+ case TPS65910_REG_VDIG1:
+ return TPS65910_VDIG1;
+ case TPS65910_REG_VDIG2:
+ return TPS65910_VDIG2;
+ case TPS65910_REG_VPLL:
+ return TPS65910_VPLL;
+ case TPS65910_REG_VDAC:
+ return TPS65910_VDAC;
+ case TPS65910_REG_VAUX1:
+ return TPS65910_VAUX1;
+ case TPS65910_REG_VAUX2:
+ return TPS65910_VAUX2;
+ case TPS65910_REG_VAUX33:
+ return TPS65910_VAUX33;
+ case TPS65910_REG_VMMC:
+ return TPS65910_VMMC;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int tps65911_get_ctrl_register(int id)
+{
+ switch (id) {
+ case TPS65910_REG_VRTC:
+ return TPS65910_VRTC;
+ case TPS65910_REG_VIO:
+ return TPS65910_VIO;
+ case TPS65910_REG_VDD1:
+ return TPS65910_VDD1;
+ case TPS65910_REG_VDD2:
+ return TPS65910_VDD2;
+ case TPS65911_REG_VDDCTRL:
+ return TPS65911_VDDCTRL;
+ case TPS65911_REG_LDO1:
+ return TPS65911_LDO1;
+ case TPS65911_REG_LDO2:
+ return TPS65911_LDO2;
+ case TPS65911_REG_LDO3:
+ return TPS65911_LDO3;
+ case TPS65911_REG_LDO4:
+ return TPS65911_LDO4;
+ case TPS65911_REG_LDO5:
+ return TPS65911_LDO5;
+ case TPS65911_REG_LDO6:
+ return TPS65911_LDO6;
+ case TPS65911_REG_LDO7:
+ return TPS65911_LDO7;
+ case TPS65911_REG_LDO8:
+ return TPS65911_LDO8;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int tps65910_is_enabled(struct regulator_dev *dev)
+{
+ struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+ int reg, value, id = rdev_get_id(dev);
+
+ reg = pmic->get_ctrl_reg(id);
+ if (reg < 0)
+ return reg;
+
+ value = tps65910_reg_read(pmic, reg);
+ if (value < 0)
+ return value;
+
+ return value & TPS65910_SUPPLY_STATE_ENABLED;
+}
+
+static int tps65910_enable(struct regulator_dev *dev)
+{
+ struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+ struct tps65910 *mfd = pmic->mfd;
+ int reg, id = rdev_get_id(dev);
+
+ reg = pmic->get_ctrl_reg(id);
+ if (reg < 0)
+ return reg;
+
+ return tps65910_set_bits(mfd, reg, TPS65910_SUPPLY_STATE_ENABLED);
+}
+
+static int tps65910_disable(struct regulator_dev *dev)
+{
+ struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+ struct tps65910 *mfd = pmic->mfd;
+ int reg, id = rdev_get_id(dev);
+
+ reg = pmic->get_ctrl_reg(id);
+ if (reg < 0)
+ return reg;
+
+ return tps65910_clear_bits(mfd, reg, TPS65910_SUPPLY_STATE_ENABLED);
+}
+
+static int tps65910_enable_time(struct regulator_dev *dev)
+{
+ struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+ int id = rdev_get_id(dev);
+ return pmic->info[id]->enable_time_us;
+}
+
+static int tps65910_set_mode(struct regulator_dev *dev, unsigned int mode)
+{
+ struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+ struct tps65910 *mfd = pmic->mfd;
+ int reg, value, id = rdev_get_id(dev);
+
+ reg = pmic->get_ctrl_reg(id);
+ if (reg < 0)
+ return reg;
+
+ switch (mode) {
+ case REGULATOR_MODE_NORMAL:
+ return tps65910_modify_bits(pmic, reg, LDO_ST_ON_BIT,
+ LDO_ST_MODE_BIT);
+ case REGULATOR_MODE_IDLE:
+ value = LDO_ST_ON_BIT | LDO_ST_MODE_BIT;
+ return tps65910_set_bits(mfd, reg, value);
+ case REGULATOR_MODE_STANDBY:
+ return tps65910_clear_bits(mfd, reg, LDO_ST_ON_BIT);
+ }
+
+ return -EINVAL;
+}
+
+static unsigned int tps65910_get_mode(struct regulator_dev *dev)
+{
+ struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+ int reg, value, id = rdev_get_id(dev);
+
+ reg = pmic->get_ctrl_reg(id);
+ if (reg < 0)
+ return reg;
+
+ value = tps65910_reg_read(pmic, reg);
+ if (value < 0)
+ return value;
+
+ if (!(value & LDO_ST_ON_BIT))
+ return REGULATOR_MODE_STANDBY;
+ else if (value & LDO_ST_MODE_BIT)
+ return REGULATOR_MODE_IDLE;
+ else
+ return REGULATOR_MODE_NORMAL;
+}
+
+static int tps65910_get_voltage_dcdc_sel(struct regulator_dev *dev)
+{
+ struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+ int id = rdev_get_id(dev);
+ int opvsel = 0, srvsel = 0, vselmax = 0, mult = 0, sr = 0;
+
+ switch (id) {
+ case TPS65910_REG_VDD1:
+ opvsel = tps65910_reg_read(pmic, TPS65910_VDD1_OP);
+ mult = tps65910_reg_read(pmic, TPS65910_VDD1);
+ mult = (mult & VDD1_VGAIN_SEL_MASK) >> VDD1_VGAIN_SEL_SHIFT;
+ srvsel = tps65910_reg_read(pmic, TPS65910_VDD1_SR);
+ sr = opvsel & VDD1_OP_CMD_MASK;
+ opvsel &= VDD1_OP_SEL_MASK;
+ srvsel &= VDD1_SR_SEL_MASK;
+ vselmax = 75;
+ break;
+ case TPS65910_REG_VDD2:
+ opvsel = tps65910_reg_read(pmic, TPS65910_VDD2_OP);
+ mult = tps65910_reg_read(pmic, TPS65910_VDD2);
+ mult = (mult & VDD2_VGAIN_SEL_MASK) >> VDD2_VGAIN_SEL_SHIFT;
+ srvsel = tps65910_reg_read(pmic, TPS65910_VDD2_SR);
+ sr = opvsel & VDD2_OP_CMD_MASK;
+ opvsel &= VDD2_OP_SEL_MASK;
+ srvsel &= VDD2_SR_SEL_MASK;
+ vselmax = 75;
+ break;
+ case TPS65911_REG_VDDCTRL:
+ opvsel = tps65910_reg_read(pmic, TPS65911_VDDCTRL_OP);
+ srvsel = tps65910_reg_read(pmic, TPS65911_VDDCTRL_SR);
+ sr = opvsel & VDDCTRL_OP_CMD_MASK;
+ opvsel &= VDDCTRL_OP_SEL_MASK;
+ srvsel &= VDDCTRL_SR_SEL_MASK;
+ vselmax = 64;
+ break;
+ }
+
+ /* multiplier 0 == 1 but 2,3 normal */
+ if (!mult)
+ mult=1;
+
+ if (sr) {
+ /* normalise to valid range */
+ if (srvsel < 3)
+ srvsel = 3;
+ if (srvsel > vselmax)
+ srvsel = vselmax;
+ return srvsel - 3;
+ } else {
+
+ /* normalise to valid range*/
+ if (opvsel < 3)
+ opvsel = 3;
+ if (opvsel > vselmax)
+ opvsel = vselmax;
+ return opvsel - 3;
+ }
+ return -EINVAL;
+}
+
+static int tps65910_get_voltage(struct regulator_dev *dev)
+{
+ struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+ int reg, value, id = rdev_get_id(dev), voltage = 0;
+
+ reg = pmic->get_ctrl_reg(id);
+ if (reg < 0)
+ return reg;
+
+ value = tps65910_reg_read(pmic, reg);
+ if (value < 0)
+ return value;
+
+ switch (id) {
+ case TPS65910_REG_VIO:
+ case TPS65910_REG_VDIG1:
+ case TPS65910_REG_VDIG2:
+ case TPS65910_REG_VPLL:
+ case TPS65910_REG_VDAC:
+ case TPS65910_REG_VAUX1:
+ case TPS65910_REG_VAUX2:
+ case TPS65910_REG_VAUX33:
+ case TPS65910_REG_VMMC:
+ value &= LDO_SEL_MASK;
+ value >>= LDO_SEL_SHIFT;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ voltage = pmic->info[id]->voltage_table[value] * 1000;
+
+ return voltage;
+}
+
+static int tps65910_get_voltage_vdd3(struct regulator_dev *dev)
+{
+ return 5 * 1000 * 1000;
+}
+
+static int tps65911_get_voltage(struct regulator_dev *dev)
+{
+ struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+ int step_mv, id = rdev_get_id(dev);
+ u8 value, reg;
+
+ reg = pmic->get_ctrl_reg(id);
+
+ value = tps65910_reg_read(pmic, reg);
+
+ switch (id) {
+ case TPS65911_REG_LDO1:
+ case TPS65911_REG_LDO2:
+ case TPS65911_REG_LDO4:
+ value &= LDO1_SEL_MASK;
+ value >>= LDO_SEL_SHIFT;
+ /* The first 5 values of the selector correspond to 1V */
+ if (value < 5)
+ value = 0;
+ else
+ value -= 4;
+
+ step_mv = 50;
+ break;
+ case TPS65911_REG_LDO3:
+ case TPS65911_REG_LDO5:
+ case TPS65911_REG_LDO6:
+ case TPS65911_REG_LDO7:
+ case TPS65911_REG_LDO8:
+ value &= LDO3_SEL_MASK;
+ value >>= LDO_SEL_SHIFT;
+ /* The first 3 values of the selector correspond to 1V */
+ if (value < 3)
+ value = 0;
+ else
+ value -= 2;
+
+ step_mv = 100;
+ break;
+ case TPS65910_REG_VIO:
+ value &= LDO_SEL_MASK;
+ value >>= LDO_SEL_SHIFT;
+ return pmic->info[id]->voltage_table[value] * 1000;
+ default:
+ return -EINVAL;
+ }
+
+ return (LDO_MIN_VOLT + value * step_mv) * 1000;
+}
+
+static int tps65910_set_voltage_dcdc_sel(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+ int id = rdev_get_id(dev), vsel;
+ int dcdc_mult = 0;
+
+ switch (id) {
+ case TPS65910_REG_VDD1:
+ dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
+ if (dcdc_mult == 1)
+ dcdc_mult--;
+ vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3;
+
+ tps65910_modify_bits(pmic, TPS65910_VDD1,
+ (dcdc_mult << VDD1_VGAIN_SEL_SHIFT),
+ VDD1_VGAIN_SEL_MASK);
+ tps65910_reg_write(pmic, TPS65910_VDD1_OP, vsel);
+ break;
+ case TPS65910_REG_VDD2:
+ dcdc_mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
+ if (dcdc_mult == 1)
+ dcdc_mult--;
+ vsel = (selector % VDD1_2_NUM_VOLT_FINE) + 3;
+
+ tps65910_modify_bits(pmic, TPS65910_VDD2,
+ (dcdc_mult << VDD2_VGAIN_SEL_SHIFT),
+ VDD1_VGAIN_SEL_MASK);
+ tps65910_reg_write(pmic, TPS65910_VDD2_OP, vsel);
+ break;
+ case TPS65911_REG_VDDCTRL:
+ vsel = selector + 3;
+ tps65910_reg_write(pmic, TPS65911_VDDCTRL_OP, vsel);
+ }
+
+ return 0;
+}
+
+static int tps65910_set_voltage_sel(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+ int reg, id = rdev_get_id(dev);
+
+ reg = pmic->get_ctrl_reg(id);
+ if (reg < 0)
+ return reg;
+
+ switch (id) {
+ case TPS65910_REG_VIO:
+ case TPS65910_REG_VDIG1:
+ case TPS65910_REG_VDIG2:
+ case TPS65910_REG_VPLL:
+ case TPS65910_REG_VDAC:
+ case TPS65910_REG_VAUX1:
+ case TPS65910_REG_VAUX2:
+ case TPS65910_REG_VAUX33:
+ case TPS65910_REG_VMMC:
+ return tps65910_modify_bits(pmic, reg,
+ (selector << LDO_SEL_SHIFT), LDO_SEL_MASK);
+ }
+
+ return -EINVAL;
+}
+
+static int tps65911_set_voltage_sel(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+ int reg, id = rdev_get_id(dev);
+
+ reg = pmic->get_ctrl_reg(id);
+ if (reg < 0)
+ return reg;
+
+ switch (id) {
+ case TPS65911_REG_LDO1:
+ case TPS65911_REG_LDO2:
+ case TPS65911_REG_LDO4:
+ return tps65910_modify_bits(pmic, reg,
+ (selector << LDO_SEL_SHIFT), LDO1_SEL_MASK);
+ case TPS65911_REG_LDO3:
+ case TPS65911_REG_LDO5:
+ case TPS65911_REG_LDO6:
+ case TPS65911_REG_LDO7:
+ case TPS65911_REG_LDO8:
+ return tps65910_modify_bits(pmic, reg,
+ (selector << LDO_SEL_SHIFT), LDO3_SEL_MASK);
+ case TPS65910_REG_VIO:
+ return tps65910_modify_bits(pmic, reg,
+ (selector << LDO_SEL_SHIFT), LDO_SEL_MASK);
+ }
+
+ return -EINVAL;
+}
+
+
+static int tps65910_list_voltage_dcdc(struct regulator_dev *dev,
+ unsigned selector)
+{
+ int volt, mult = 1, id = rdev_get_id(dev);
+
+ switch (id) {
+ case TPS65910_REG_VDD1:
+ case TPS65910_REG_VDD2:
+ mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
+ volt = VDD1_2_MIN_VOLT +
+ (selector % VDD1_2_NUM_VOLT_FINE) * VDD1_2_OFFSET;
+ break;
+ case TPS65911_REG_VDDCTRL:
+ volt = VDDCTRL_MIN_VOLT + (selector * VDDCTRL_OFFSET);
+ break;
+ default:
+ BUG();
+ return -EINVAL;
+ }
+
+ return volt * 100 * mult;
+}
+
+static int tps65910_list_voltage(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+ int id = rdev_get_id(dev), voltage;
+
+ if (id < TPS65910_REG_VIO || id > TPS65910_REG_VMMC)
+ return -EINVAL;
+
+ if (selector >= pmic->info[id]->n_voltages)
+ return -EINVAL;
+ else
+ voltage = pmic->info[id]->voltage_table[selector] * 1000;
+
+ return voltage;
+}
+
+static int tps65911_list_voltage(struct regulator_dev *dev, unsigned selector)
+{
+ struct tps65910_reg *pmic = rdev_get_drvdata(dev);
+ int step_mv = 0, id = rdev_get_id(dev);
+
+ switch(id) {
+ case TPS65911_REG_LDO1:
+ case TPS65911_REG_LDO2:
+ case TPS65911_REG_LDO4:
+ /* The first 5 values of the selector correspond to 1V */
+ if (selector < 5)
+ selector = 0;
+ else
+ selector -= 4;
+
+ step_mv = 50;
+ break;
+ case TPS65911_REG_LDO3:
+ case TPS65911_REG_LDO5:
+ case TPS65911_REG_LDO6:
+ case TPS65911_REG_LDO7:
+ case TPS65911_REG_LDO8:
+ /* The first 3 values of the selector correspond to 1V */
+ if (selector < 3)
+ selector = 0;
+ else
+ selector -= 2;
+
+ step_mv = 100;
+ break;
+ case TPS65910_REG_VIO:
+ return pmic->info[id]->voltage_table[selector] * 1000;
+ default:
+ return -EINVAL;
+ }
+
+ return (LDO_MIN_VOLT + selector * step_mv) * 1000;
+}
+
+static int tps65910_set_voltage_dcdc_time_sel(struct regulator_dev *dev,
+ unsigned int old_selector, unsigned int new_selector)
+{
+ int id = rdev_get_id(dev);
+ int old_volt, new_volt;
+
+ old_volt = tps65910_list_voltage_dcdc(dev, old_selector);
+ if (old_volt < 0)
+ return old_volt;
+
+ new_volt = tps65910_list_voltage_dcdc(dev, new_selector);
+ if (new_volt < 0)
+ return new_volt;
+
+ /* VDD1 and VDD2 are 12.5mV/us, VDDCTRL is 100mV/20us */
+ switch (id) {
+ case TPS65910_REG_VDD1:
+ case TPS65910_REG_VDD2:
+ return DIV_ROUND_UP(abs(old_volt - new_volt), 12500);
+ case TPS65911_REG_VDDCTRL:
+ return DIV_ROUND_UP(abs(old_volt - new_volt), 5000);
+ }
+ return -EINVAL;
+}
+
+/* Regulator ops (except VRTC) */
+static struct regulator_ops tps65910_ops_dcdc = {
+ .is_enabled = tps65910_is_enabled,
+ .enable = tps65910_enable,
+ .disable = tps65910_disable,
+ .enable_time = tps65910_enable_time,
+ .set_mode = tps65910_set_mode,
+ .get_mode = tps65910_get_mode,
+ .get_voltage_sel = tps65910_get_voltage_dcdc_sel,
+ .set_voltage_sel = tps65910_set_voltage_dcdc_sel,
+ .set_voltage_time_sel = tps65910_set_voltage_dcdc_time_sel,
+ .list_voltage = tps65910_list_voltage_dcdc,
+};
+
+static struct regulator_ops tps65910_ops_vdd3 = {
+ .is_enabled = tps65910_is_enabled,
+ .enable = tps65910_enable,
+ .disable = tps65910_disable,
+ .enable_time = tps65910_enable_time,
+ .set_mode = tps65910_set_mode,
+ .get_mode = tps65910_get_mode,
+ .get_voltage = tps65910_get_voltage_vdd3,
+ .list_voltage = tps65910_list_voltage,
+};
+
+static struct regulator_ops tps65910_ops = {
+ .is_enabled = tps65910_is_enabled,
+ .enable = tps65910_enable,
+ .disable = tps65910_disable,
+ .enable_time = tps65910_enable_time,
+ .set_mode = tps65910_set_mode,
+ .get_mode = tps65910_get_mode,
+ .get_voltage = tps65910_get_voltage,
+ .set_voltage_sel = tps65910_set_voltage_sel,
+ .list_voltage = tps65910_list_voltage,
+};
+
+static struct regulator_ops tps65911_ops = {
+ .is_enabled = tps65910_is_enabled,
+ .enable = tps65910_enable,
+ .disable = tps65910_disable,
+ .enable_time = tps65910_enable_time,
+ .set_mode = tps65910_set_mode,
+ .get_mode = tps65910_get_mode,
+ .get_voltage = tps65911_get_voltage,
+ .set_voltage_sel = tps65911_set_voltage_sel,
+ .list_voltage = tps65911_list_voltage,
+};
+
+static int tps65910_set_ext_sleep_config(struct tps65910_reg *pmic,
+ int id, int ext_sleep_config)
+{
+ struct tps65910 *mfd = pmic->mfd;
+ u8 regoffs = (pmic->ext_sleep_control[id] >> 8) & 0xFF;
+ u8 bit_pos = (1 << pmic->ext_sleep_control[id] & 0xFF);
+ int ret;
+
+ /*
+ * Regulator can not be control from multiple external input EN1, EN2
+ * and EN3 together.
+ */
+ if (ext_sleep_config & EXT_SLEEP_CONTROL) {
+ int en_count;
+ en_count = ((ext_sleep_config &
+ TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1) != 0);
+ en_count += ((ext_sleep_config &
+ TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2) != 0);
+ en_count += ((ext_sleep_config &
+ TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3) != 0);
+ en_count += ((ext_sleep_config &
+ TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP) != 0);
+ if (en_count > 1) {
+ dev_err(mfd->dev,
+ "External sleep control flag is not proper\n");
+ return -EINVAL;
+ }
+ }
+
+ pmic->board_ext_control[id] = ext_sleep_config;
+
+ /* External EN1 control */
+ if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN1)
+ ret = tps65910_set_bits(mfd,
+ TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
+ else
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_EN1_LDO_ASS + regoffs, bit_pos);
+ if (ret < 0) {
+ dev_err(mfd->dev,
+ "Error in configuring external control EN1\n");
+ return ret;
+ }
+
+ /* External EN2 control */
+ if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN2)
+ ret = tps65910_set_bits(mfd,
+ TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
+ else
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_EN2_LDO_ASS + regoffs, bit_pos);
+ if (ret < 0) {
+ dev_err(mfd->dev,
+ "Error in configuring external control EN2\n");
+ return ret;
+ }
+
+ /* External EN3 control for TPS65910 LDO only */
+ if ((tps65910_chip_id(mfd) == TPS65910) &&
+ (id >= TPS65910_REG_VDIG1)) {
+ if (ext_sleep_config & TPS65910_SLEEP_CONTROL_EXT_INPUT_EN3)
+ ret = tps65910_set_bits(mfd,
+ TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
+ else
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_EN3_LDO_ASS + regoffs, bit_pos);
+ if (ret < 0) {
+ dev_err(mfd->dev,
+ "Error in configuring external control EN3\n");
+ return ret;
+ }
+ }
+
+ /* Return if no external control is selected */
+ if (!(ext_sleep_config & EXT_SLEEP_CONTROL)) {
+ /* Clear all sleep controls */
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
+ if (!ret)
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
+ if (ret < 0)
+ dev_err(mfd->dev,
+ "Error in configuring SLEEP register\n");
+ return ret;
+ }
+
+ /*
+ * For regulator that has separate operational and sleep register make
+ * sure that operational is used and clear sleep register to turn
+ * regulator off when external control is inactive
+ */
+ if ((id == TPS65910_REG_VDD1) ||
+ (id == TPS65910_REG_VDD2) ||
+ ((id == TPS65911_REG_VDDCTRL) &&
+ (tps65910_chip_id(mfd) == TPS65911))) {
+ int op_reg_add = pmic->get_ctrl_reg(id) + 1;
+ int sr_reg_add = pmic->get_ctrl_reg(id) + 2;
+ int opvsel = tps65910_reg_read(pmic, op_reg_add);
+ int srvsel = tps65910_reg_read(pmic, sr_reg_add);
+ if (opvsel & VDD1_OP_CMD_MASK) {
+ u8 reg_val = srvsel & VDD1_OP_SEL_MASK;
+ ret = tps65910_reg_write(pmic, op_reg_add, reg_val);
+ if (ret < 0) {
+ dev_err(mfd->dev,
+ "Error in configuring op register\n");
+ return ret;
+ }
+ }
+ ret = tps65910_reg_write(pmic, sr_reg_add, 0);
+ if (ret < 0) {
+ dev_err(mfd->dev, "Error in settting sr register\n");
+ return ret;
+ }
+ }
+
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_SLEEP_KEEP_LDO_ON + regoffs, bit_pos);
+ if (!ret) {
+ if (ext_sleep_config & TPS65911_SLEEP_CONTROL_EXT_INPUT_SLEEP)
+ ret = tps65910_set_bits(mfd,
+ TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
+ else
+ ret = tps65910_clear_bits(mfd,
+ TPS65910_SLEEP_SET_LDO_OFF + regoffs, bit_pos);
+ }
+ if (ret < 0)
+ dev_err(mfd->dev,
+ "Error in configuring SLEEP register\n");
+
+ return ret;
+}
+
+static __devinit int tps65910_probe(struct platform_device *pdev)
+{
+ struct tps65910 *tps65910 = dev_get_drvdata(pdev->dev.parent);
+ struct tps_info *info;
+ struct regulator_init_data *reg_data;
+ struct regulator_dev *rdev;
+ struct tps65910_reg *pmic;
+ struct tps65910_board *pmic_plat_data;
+ int i, err;
+
+ pmic_plat_data = dev_get_platdata(tps65910->dev);
+ if (!pmic_plat_data)
+ return -EINVAL;
+
+ pmic = kzalloc(sizeof(*pmic), GFP_KERNEL);
+ if (!pmic)
+ return -ENOMEM;
+
+ mutex_init(&pmic->mutex);
+ pmic->mfd = tps65910;
+ platform_set_drvdata(pdev, pmic);
+
+ /* Give control of all register to control port */
+ tps65910_set_bits(pmic->mfd, TPS65910_DEVCTRL,
+ DEVCTRL_SR_CTL_I2C_SEL_MASK);
+
+ switch(tps65910_chip_id(tps65910)) {
+ case TPS65910:
+ pmic->get_ctrl_reg = &tps65910_get_ctrl_register;
+ pmic->num_regulators = ARRAY_SIZE(tps65910_regs);
+ pmic->ext_sleep_control = tps65910_ext_sleep_control;
+ info = tps65910_regs;
+ break;
+ case TPS65911:
+ pmic->get_ctrl_reg = &tps65911_get_ctrl_register;
+ pmic->num_regulators = ARRAY_SIZE(tps65911_regs);
+ pmic->ext_sleep_control = tps65911_ext_sleep_control;
+ info = tps65911_regs;
+ break;
+ default:
+ pr_err("Invalid tps chip version\n");
+ kfree(pmic);
+ return -ENODEV;
+ }
+
+ pmic->desc = kcalloc(pmic->num_regulators,
+ sizeof(struct regulator_desc), GFP_KERNEL);
+ if (!pmic->desc) {
+ err = -ENOMEM;
+ goto err_free_pmic;
+ }
+
+ pmic->info = kcalloc(pmic->num_regulators,
+ sizeof(struct tps_info *), GFP_KERNEL);
+ if (!pmic->info) {
+ err = -ENOMEM;
+ goto err_free_desc;
+ }
+
+ pmic->rdev = kcalloc(pmic->num_regulators,
+ sizeof(struct regulator_dev *), GFP_KERNEL);
+ if (!pmic->rdev) {
+ err = -ENOMEM;
+ goto err_free_info;
+ }
+
+ for (i = 0; i < pmic->num_regulators && i < TPS65910_NUM_REGS;
+ i++, info++) {
+
+ reg_data = pmic_plat_data->tps65910_pmic_init_data[i];
+
+ /* Regulator API handles empty constraints but not NULL
+ * constraints */
+ if (!reg_data)
+ continue;
+
+ /* Register the regulators */
+ pmic->info[i] = info;
+
+ pmic->desc[i].name = info->name;
+ pmic->desc[i].id = i;
+ pmic->desc[i].n_voltages = info->n_voltages;
+
+ if (i == TPS65910_REG_VDD1 || i == TPS65910_REG_VDD2) {
+ pmic->desc[i].ops = &tps65910_ops_dcdc;
+ pmic->desc[i].n_voltages = VDD1_2_NUM_VOLT_FINE *
+ VDD1_2_NUM_VOLT_COARSE;
+ } else if (i == TPS65910_REG_VDD3) {
+ if (tps65910_chip_id(tps65910) == TPS65910)
+ pmic->desc[i].ops = &tps65910_ops_vdd3;
+ else
+ pmic->desc[i].ops = &tps65910_ops_dcdc;
+ } else {
+ if (tps65910_chip_id(tps65910) == TPS65910)
+ pmic->desc[i].ops = &tps65910_ops;
+ else
+ pmic->desc[i].ops = &tps65911_ops;
+ }
+
+ err = tps65910_set_ext_sleep_config(pmic, i,
+ pmic_plat_data->regulator_ext_sleep_control[i]);
+ /*
+ * Failing on regulator for configuring externally control
+ * is not a serious issue, just throw warning.
+ */
+ if (err < 0)
+ dev_warn(tps65910->dev,
+ "Failed to initialise ext control config\n");
+
+ pmic->desc[i].type = REGULATOR_VOLTAGE;
+ pmic->desc[i].owner = THIS_MODULE;
+
+ rdev = regulator_register(&pmic->desc[i],
+ tps65910->dev, reg_data, pmic, NULL);
+ if (IS_ERR(rdev)) {
+ dev_err(tps65910->dev,
+ "failed to register %s regulator\n",
+ pdev->name);
+ err = PTR_ERR(rdev);
+ goto err_unregister_regulator;
+ }
+
+ /* Save regulator for cleanup */
+ pmic->rdev[i] = rdev;
+ }
+ return 0;
+
+err_unregister_regulator:
+ while (--i >= 0)
+ regulator_unregister(pmic->rdev[i]);
+ kfree(pmic->rdev);
+err_free_info:
+ kfree(pmic->info);
+err_free_desc:
+ kfree(pmic->desc);
+err_free_pmic:
+ kfree(pmic);
+ return err;
+}
+
+static int __devexit tps65910_remove(struct platform_device *pdev)
+{
+ struct tps65910_reg *pmic = platform_get_drvdata(pdev);
+ int i;
+
+ for (i = 0; i < pmic->num_regulators; i++)
+ regulator_unregister(pmic->rdev[i]);
+
+ kfree(pmic->rdev);
+ kfree(pmic->info);
+ kfree(pmic->desc);
+ kfree(pmic);
+ return 0;
+}
+
+static void tps65910_shutdown(struct platform_device *pdev)
+{
+ struct tps65910_reg *pmic = platform_get_drvdata(pdev);
+ int i;
+
+ /*
+ * Before bootloader jumps to kernel, it makes sure that required
+ * external control signals are in desired state so that given rails
+ * can be configure accordingly.
+ * If rails are configured to be controlled from external control
+ * then before shutting down/rebooting the system, the external
+ * control configuration need to be remove from the rails so that
+ * its output will be available as per register programming even
+ * if external controls are removed. This is require when the POR
+ * value of the control signals are not in active state and before
+ * bootloader initializes it, the system requires the rail output
+ * to be active for booting.
+ */
+ for (i = 0; i < pmic->num_regulators; i++) {
+ int err;
+ if (!pmic->rdev[i])
+ continue;
+
+ err = tps65910_set_ext_sleep_config(pmic, i, 0);
+ if (err < 0)
+ dev_err(&pdev->dev,
+ "Error in clearing external control\n");
+ }
+}
+
+static struct platform_driver tps65910_driver = {
+ .driver = {
+ .name = "tps65910-pmic",
+ .owner = THIS_MODULE,
+ },
+ .probe = tps65910_probe,
+ .remove = __devexit_p(tps65910_remove),
+ .shutdown = tps65910_shutdown,
+};
+
+static int __init tps65910_init(void)
+{
+ return platform_driver_register(&tps65910_driver);
+}
+subsys_initcall(tps65910_init);
+
+static void __exit tps65910_cleanup(void)
+{
+ platform_driver_unregister(&tps65910_driver);
+}
+module_exit(tps65910_cleanup);
+
+MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>");
+MODULE_DESCRIPTION("TPS65910/TPS65911 voltage regulator driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:tps65910-pmic");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/tps65912-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/tps65912-regulator.c
new file mode 100644
index 0000000..b36799b
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/tps65912-regulator.c
@@ -0,0 +1,586 @@
+/*
+ * tps65912.c -- TI tps65912
+ *
+ * Copyright 2011 Texas Instruments Inc.
+ *
+ * Author: Margarita Olaya Cabrera <magi@slimlogic.co.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This driver is based on wm8350 implementation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/mfd/tps65912.h>
+
+/* DCDC's */
+#define TPS65912_REG_DCDC1 0
+#define TPS65912_REG_DCDC2 1
+#define TPS65912_REG_DCDC3 2
+#define TPS65912_REG_DCDC4 3
+
+/* LDOs */
+#define TPS65912_REG_LDO1 4
+#define TPS65912_REG_LDO2 5
+#define TPS65912_REG_LDO3 6
+#define TPS65912_REG_LDO4 7
+#define TPS65912_REG_LDO5 8
+#define TPS65912_REG_LDO6 9
+#define TPS65912_REG_LDO7 10
+#define TPS65912_REG_LDO8 11
+#define TPS65912_REG_LDO9 12
+#define TPS65912_REG_LDO10 13
+
+/* Number of step-down converters available */
+#define TPS65912_NUM_DCDC 4
+
+/* Number of LDO voltage regulators available */
+#define TPS65912_NUM_LDO 10
+
+/* Number of total regulators available */
+#define TPS65912_NUM_REGULATOR (TPS65912_NUM_DCDC + TPS65912_NUM_LDO)
+
+#define TPS65912_REG_ENABLED 0x80
+#define OP_SELREG_MASK 0x40
+#define OP_SELREG_SHIFT 6
+
+struct tps_info {
+ const char *name;
+};
+
+static struct tps_info tps65912_regs[] = {
+ {
+ .name = "DCDC1",
+ },
+ {
+ .name = "DCDC2",
+ },
+ {
+ .name = "DCDC3",
+ },
+ {
+ .name = "DCDC4",
+ },
+ {
+ .name = "LDO1",
+ },
+ {
+ .name = "LDO2",
+ },
+ {
+ .name = "LDO3",
+ },
+ {
+ .name = "LDO4",
+ },
+ {
+ .name = "LDO5",
+ },
+ {
+ .name = "LDO6",
+ },
+ {
+ .name = "LDO7",
+ },
+ {
+ .name = "LDO8",
+ },
+ {
+ .name = "LDO9",
+ },
+ {
+ .name = "LDO10",
+ },
+};
+
+struct tps65912_reg {
+ struct regulator_desc desc[TPS65912_NUM_REGULATOR];
+ struct tps65912 *mfd;
+ struct regulator_dev *rdev[TPS65912_NUM_REGULATOR];
+ struct tps_info *info[TPS65912_NUM_REGULATOR];
+ /* for read/write access */
+ struct mutex io_lock;
+ int mode;
+ int (*get_ctrl_reg)(int);
+ int dcdc_range[TPS65912_NUM_DCDC];
+ int pwm_mode_reg;
+ int eco_reg;
+};
+
+static int tps65912_get_range(struct tps65912_reg *pmic, int id)
+{
+ struct tps65912 *mfd = pmic->mfd;
+ int range;
+
+ switch (id) {
+ case TPS65912_REG_DCDC1:
+ range = tps65912_reg_read(mfd, TPS65912_DCDC1_LIMIT);
+ break;
+ case TPS65912_REG_DCDC2:
+ range = tps65912_reg_read(mfd, TPS65912_DCDC2_LIMIT);
+ break;
+ case TPS65912_REG_DCDC3:
+ range = tps65912_reg_read(mfd, TPS65912_DCDC3_LIMIT);
+ break;
+ case TPS65912_REG_DCDC4:
+ range = tps65912_reg_read(mfd, TPS65912_DCDC4_LIMIT);
+ break;
+ default:
+ return 0;
+ }
+
+ if (range >= 0)
+ range = (range & DCDC_LIMIT_RANGE_MASK)
+ >> DCDC_LIMIT_RANGE_SHIFT;
+
+ pmic->dcdc_range[id] = range;
+ return range;
+}
+
+static unsigned long tps65912_vsel_to_uv_range0(u8 vsel)
+{
+ unsigned long uv;
+
+ uv = ((vsel * 12500) + 500000);
+ return uv;
+}
+
+static unsigned long tps65912_vsel_to_uv_range1(u8 vsel)
+{
+ unsigned long uv;
+
+ uv = ((vsel * 12500) + 700000);
+ return uv;
+}
+
+static unsigned long tps65912_vsel_to_uv_range2(u8 vsel)
+{
+ unsigned long uv;
+
+ uv = ((vsel * 25000) + 500000);
+ return uv;
+}
+
+static unsigned long tps65912_vsel_to_uv_range3(u8 vsel)
+{
+ unsigned long uv;
+
+ if (vsel == 0x3f)
+ uv = 3800000;
+ else
+ uv = ((vsel * 50000) + 500000);
+
+ return uv;
+}
+
+static unsigned long tps65912_vsel_to_uv_ldo(u8 vsel)
+{
+ unsigned long uv = 0;
+
+ if (vsel <= 32)
+ uv = ((vsel * 25000) + 800000);
+ else if (vsel > 32 && vsel <= 60)
+ uv = (((vsel - 32) * 50000) + 1600000);
+ else if (vsel > 60)
+ uv = (((vsel - 60) * 100000) + 3000000);
+
+ return uv;
+}
+
+static int tps65912_get_ctrl_register(int id)
+{
+ if (id >= TPS65912_REG_DCDC1 && id <= TPS65912_REG_LDO4)
+ return id * 3 + TPS65912_DCDC1_AVS;
+ else if (id >= TPS65912_REG_LDO5 && id <= TPS65912_REG_LDO10)
+ return id - TPS65912_REG_LDO5 + TPS65912_LDO5;
+ else
+ return -EINVAL;
+}
+
+static int tps65912_get_sel_register(struct tps65912_reg *pmic, int id)
+{
+ struct tps65912 *mfd = pmic->mfd;
+ int opvsel;
+ u8 reg = 0;
+
+ if (id >= TPS65912_REG_DCDC1 && id <= TPS65912_REG_LDO4) {
+ opvsel = tps65912_reg_read(mfd, id * 3 + TPS65912_DCDC1_OP);
+ if (opvsel & OP_SELREG_MASK)
+ reg = id * 3 + TPS65912_DCDC1_AVS;
+ else
+ reg = id * 3 + TPS65912_DCDC1_OP;
+ } else if (id >= TPS65912_REG_LDO5 && id <= TPS65912_REG_LDO10) {
+ reg = id - TPS65912_REG_LDO5 + TPS65912_LDO5;
+ } else {
+ return -EINVAL;
+ }
+
+ return reg;
+}
+
+static int tps65912_get_mode_regiters(struct tps65912_reg *pmic, int id)
+{
+ switch (id) {
+ case TPS65912_REG_DCDC1:
+ pmic->pwm_mode_reg = TPS65912_DCDC1_CTRL;
+ pmic->eco_reg = TPS65912_DCDC1_AVS;
+ break;
+ case TPS65912_REG_DCDC2:
+ pmic->pwm_mode_reg = TPS65912_DCDC2_CTRL;
+ pmic->eco_reg = TPS65912_DCDC2_AVS;
+ break;
+ case TPS65912_REG_DCDC3:
+ pmic->pwm_mode_reg = TPS65912_DCDC3_CTRL;
+ pmic->eco_reg = TPS65912_DCDC3_AVS;
+ break;
+ case TPS65912_REG_DCDC4:
+ pmic->pwm_mode_reg = TPS65912_DCDC4_CTRL;
+ pmic->eco_reg = TPS65912_DCDC4_AVS;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int tps65912_reg_is_enabled(struct regulator_dev *dev)
+{
+ struct tps65912_reg *pmic = rdev_get_drvdata(dev);
+ struct tps65912 *mfd = pmic->mfd;
+ int reg, value, id = rdev_get_id(dev);
+
+ if (id < TPS65912_REG_DCDC1 || id > TPS65912_REG_LDO10)
+ return -EINVAL;
+
+ reg = pmic->get_ctrl_reg(id);
+ if (reg < 0)
+ return reg;
+
+ value = tps65912_reg_read(mfd, reg);
+ if (value < 0)
+ return value;
+
+ return value & TPS65912_REG_ENABLED;
+}
+
+static int tps65912_reg_enable(struct regulator_dev *dev)
+{
+ struct tps65912_reg *pmic = rdev_get_drvdata(dev);
+ struct tps65912 *mfd = pmic->mfd;
+ int id = rdev_get_id(dev);
+ int reg;
+
+ if (id < TPS65912_REG_DCDC1 || id > TPS65912_REG_LDO10)
+ return -EINVAL;
+
+ reg = pmic->get_ctrl_reg(id);
+ if (reg < 0)
+ return reg;
+
+ return tps65912_set_bits(mfd, reg, TPS65912_REG_ENABLED);
+}
+
+static int tps65912_reg_disable(struct regulator_dev *dev)
+{
+ struct tps65912_reg *pmic = rdev_get_drvdata(dev);
+ struct tps65912 *mfd = pmic->mfd;
+ int id = rdev_get_id(dev), reg;
+
+ reg = pmic->get_ctrl_reg(id);
+ if (reg < 0)
+ return reg;
+
+ return tps65912_clear_bits(mfd, reg, TPS65912_REG_ENABLED);
+}
+
+static int tps65912_set_mode(struct regulator_dev *dev, unsigned int mode)
+{
+ struct tps65912_reg *pmic = rdev_get_drvdata(dev);
+ struct tps65912 *mfd = pmic->mfd;
+ int pwm_mode, eco, id = rdev_get_id(dev);
+
+ tps65912_get_mode_regiters(pmic, id);
+
+ pwm_mode = tps65912_reg_read(mfd, pmic->pwm_mode_reg);
+ eco = tps65912_reg_read(mfd, pmic->eco_reg);
+
+ pwm_mode &= DCDCCTRL_DCDC_MODE_MASK;
+ eco &= DCDC_AVS_ECO_MASK;
+
+ switch (mode) {
+ case REGULATOR_MODE_FAST:
+ /* Verify if mode alredy set */
+ if (pwm_mode && !eco)
+ break;
+ tps65912_set_bits(mfd, pmic->pwm_mode_reg, DCDCCTRL_DCDC_MODE_MASK);
+ tps65912_clear_bits(mfd, pmic->eco_reg, DCDC_AVS_ECO_MASK);
+ break;
+ case REGULATOR_MODE_NORMAL:
+ case REGULATOR_MODE_IDLE:
+ if (!pwm_mode && !eco)
+ break;
+ tps65912_clear_bits(mfd, pmic->pwm_mode_reg, DCDCCTRL_DCDC_MODE_MASK);
+ tps65912_clear_bits(mfd, pmic->eco_reg, DCDC_AVS_ECO_MASK);
+ break;
+ case REGULATOR_MODE_STANDBY:
+ if (!pwm_mode && eco)
+ break;
+ tps65912_clear_bits(mfd, pmic->pwm_mode_reg, DCDCCTRL_DCDC_MODE_MASK);
+ tps65912_set_bits(mfd, pmic->eco_reg, DCDC_AVS_ECO_MASK);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static unsigned int tps65912_get_mode(struct regulator_dev *dev)
+{
+ struct tps65912_reg *pmic = rdev_get_drvdata(dev);
+ struct tps65912 *mfd = pmic->mfd;
+ int pwm_mode, eco, mode = 0, id = rdev_get_id(dev);
+
+ tps65912_get_mode_regiters(pmic, id);
+
+ pwm_mode = tps65912_reg_read(mfd, pmic->pwm_mode_reg);
+ eco = tps65912_reg_read(mfd, pmic->eco_reg);
+
+ pwm_mode &= DCDCCTRL_DCDC_MODE_MASK;
+ eco &= DCDC_AVS_ECO_MASK;
+
+ if (pwm_mode && !eco)
+ mode = REGULATOR_MODE_FAST;
+ else if (!pwm_mode && !eco)
+ mode = REGULATOR_MODE_NORMAL;
+ else if (!pwm_mode && eco)
+ mode = REGULATOR_MODE_STANDBY;
+
+ return mode;
+}
+
+static int tps65912_list_voltage_dcdc(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps65912_reg *pmic = rdev_get_drvdata(dev);
+ int range, voltage = 0, id = rdev_get_id(dev);
+
+ if (id > TPS65912_REG_DCDC4)
+ return -EINVAL;
+
+ range = pmic->dcdc_range[id];
+
+ switch (range) {
+ case 0:
+ /* 0.5 - 1.2875V in 12.5mV steps */
+ voltage = tps65912_vsel_to_uv_range0(selector);
+ break;
+ case 1:
+ /* 0.7 - 1.4875V in 12.5mV steps */
+ voltage = tps65912_vsel_to_uv_range1(selector);
+ break;
+ case 2:
+ /* 0.5 - 2.075V in 25mV steps */
+ voltage = tps65912_vsel_to_uv_range2(selector);
+ break;
+ case 3:
+ /* 0.5 - 3.8V in 50mV steps */
+ voltage = tps65912_vsel_to_uv_range3(selector);
+ break;
+ }
+ return voltage;
+}
+
+static int tps65912_get_voltage_dcdc(struct regulator_dev *dev)
+{
+ struct tps65912_reg *pmic = rdev_get_drvdata(dev);
+ struct tps65912 *mfd = pmic->mfd;
+ int id = rdev_get_id(dev);
+ int reg, vsel;
+
+ reg = tps65912_get_sel_register(pmic, id);
+ if (reg < 0)
+ return reg;
+
+ vsel = tps65912_reg_read(mfd, reg);
+ vsel &= 0x3F;
+
+ return tps65912_list_voltage_dcdc(dev, vsel);
+}
+
+static int tps65912_set_voltage_sel(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct tps65912_reg *pmic = rdev_get_drvdata(dev);
+ struct tps65912 *mfd = pmic->mfd;
+ int id = rdev_get_id(dev);
+ int value;
+ u8 reg;
+
+ reg = tps65912_get_sel_register(pmic, id);
+ value = tps65912_reg_read(mfd, reg);
+ value &= 0xC0;
+ return tps65912_reg_write(mfd, reg, selector | value);
+}
+
+static int tps65912_get_voltage_ldo(struct regulator_dev *dev)
+{
+ struct tps65912_reg *pmic = rdev_get_drvdata(dev);
+ struct tps65912 *mfd = pmic->mfd;
+ int id = rdev_get_id(dev);
+ int vsel = 0;
+ u8 reg;
+
+ reg = tps65912_get_sel_register(pmic, id);
+ vsel = tps65912_reg_read(mfd, reg);
+ vsel &= 0x3F;
+
+ return tps65912_vsel_to_uv_ldo(vsel);
+}
+
+static int tps65912_list_voltage_ldo(struct regulator_dev *dev,
+ unsigned selector)
+{
+ int ldo = rdev_get_id(dev);
+
+ if (ldo < TPS65912_REG_LDO1 || ldo > TPS65912_REG_LDO10)
+ return -EINVAL;
+
+ return tps65912_vsel_to_uv_ldo(selector);
+}
+
+/* Operations permitted on DCDCx */
+static struct regulator_ops tps65912_ops_dcdc = {
+ .is_enabled = tps65912_reg_is_enabled,
+ .enable = tps65912_reg_enable,
+ .disable = tps65912_reg_disable,
+ .set_mode = tps65912_set_mode,
+ .get_mode = tps65912_get_mode,
+ .get_voltage = tps65912_get_voltage_dcdc,
+ .set_voltage_sel = tps65912_set_voltage_sel,
+ .list_voltage = tps65912_list_voltage_dcdc,
+};
+
+/* Operations permitted on LDOx */
+static struct regulator_ops tps65912_ops_ldo = {
+ .is_enabled = tps65912_reg_is_enabled,
+ .enable = tps65912_reg_enable,
+ .disable = tps65912_reg_disable,
+ .get_voltage = tps65912_get_voltage_ldo,
+ .set_voltage_sel = tps65912_set_voltage_sel,
+ .list_voltage = tps65912_list_voltage_ldo,
+};
+
+static __devinit int tps65912_probe(struct platform_device *pdev)
+{
+ struct tps65912 *tps65912 = dev_get_drvdata(pdev->dev.parent);
+ struct tps_info *info;
+ struct regulator_init_data *reg_data;
+ struct regulator_dev *rdev;
+ struct tps65912_reg *pmic;
+ struct tps65912_board *pmic_plat_data;
+ int i, err;
+
+ pmic_plat_data = dev_get_platdata(tps65912->dev);
+ if (!pmic_plat_data)
+ return -EINVAL;
+
+ reg_data = pmic_plat_data->tps65912_pmic_init_data;
+
+ pmic = kzalloc(sizeof(*pmic), GFP_KERNEL);
+ if (!pmic)
+ return -ENOMEM;
+
+ mutex_init(&pmic->io_lock);
+ pmic->mfd = tps65912;
+ platform_set_drvdata(pdev, pmic);
+
+ pmic->get_ctrl_reg = &tps65912_get_ctrl_register;
+ info = tps65912_regs;
+
+ for (i = 0; i < TPS65912_NUM_REGULATOR; i++, info++, reg_data++) {
+ int range = 0;
+ /* Register the regulators */
+ pmic->info[i] = info;
+
+ pmic->desc[i].name = info->name;
+ pmic->desc[i].id = i;
+ pmic->desc[i].n_voltages = 64;
+ pmic->desc[i].ops = (i > TPS65912_REG_DCDC4 ?
+ &tps65912_ops_ldo : &tps65912_ops_dcdc);
+ pmic->desc[i].type = REGULATOR_VOLTAGE;
+ pmic->desc[i].owner = THIS_MODULE;
+ range = tps65912_get_range(pmic, i);
+ rdev = regulator_register(&pmic->desc[i],
+ tps65912->dev, reg_data, pmic, NULL);
+ if (IS_ERR(rdev)) {
+ dev_err(tps65912->dev,
+ "failed to register %s regulator\n",
+ pdev->name);
+ err = PTR_ERR(rdev);
+ goto err;
+ }
+
+ /* Save regulator for cleanup */
+ pmic->rdev[i] = rdev;
+ }
+ return 0;
+
+err:
+ while (--i >= 0)
+ regulator_unregister(pmic->rdev[i]);
+
+ kfree(pmic);
+ return err;
+}
+
+static int __devexit tps65912_remove(struct platform_device *pdev)
+{
+ struct tps65912_reg *tps65912_reg = platform_get_drvdata(pdev);
+ int i;
+
+ for (i = 0; i < TPS65912_NUM_REGULATOR; i++)
+ regulator_unregister(tps65912_reg->rdev[i]);
+
+ kfree(tps65912_reg);
+ return 0;
+}
+
+static struct platform_driver tps65912_driver = {
+ .driver = {
+ .name = "tps65912-pmic",
+ .owner = THIS_MODULE,
+ },
+ .probe = tps65912_probe,
+ .remove = __devexit_p(tps65912_remove),
+};
+
+static int __init tps65912_init(void)
+{
+ return platform_driver_register(&tps65912_driver);
+}
+subsys_initcall(tps65912_init);
+
+static void __exit tps65912_cleanup(void)
+{
+ platform_driver_unregister(&tps65912_driver);
+}
+module_exit(tps65912_cleanup);
+
+MODULE_AUTHOR("Margarita Olaya Cabrera <magi@slimlogic.co.uk>");
+MODULE_DESCRIPTION("TPS65912 voltage regulator driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:tps65912-pmic");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/twl-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/twl-regulator.c
new file mode 100644
index 0000000..1eb7a15
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/twl-regulator.c
@@ -0,0 +1,1334 @@
+/*
+ * twl-regulator.c -- support regulators in twl4030/twl6030 family chips
+ *
+ * Copyright (C) 2008 David Brownell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/i2c/twl.h>
+
+
+/*
+ * The TWL4030/TW5030/TPS659x0/TWL6030 family chips include power management, a
+ * USB OTG transceiver, an RTC, ADC, PWM, and lots more. Some versions
+ * include an audio codec, battery charger, and more voltage regulators.
+ * These chips are often used in OMAP-based systems.
+ *
+ * This driver implements software-based resource control for various
+ * voltage regulators. This is usually augmented with state machine
+ * based control.
+ */
+
+struct twlreg_info {
+ /* start of regulator's PM_RECEIVER control register bank */
+ u8 base;
+
+ /* twl resource ID, for resource control state machine */
+ u8 id;
+
+ /* voltage in mV = table[VSEL]; table_len must be a power-of-two */
+ u8 table_len;
+ const u16 *table;
+
+ /* regulator specific turn-on delay */
+ u16 delay;
+
+ /* State REMAP default configuration */
+ u8 remap;
+
+ /* chip constraints on regulator behavior */
+ u16 min_mV;
+ u16 max_mV;
+
+ u8 flags;
+
+ /* used by regulator core */
+ struct regulator_desc desc;
+
+ /* chip specific features */
+ unsigned long features;
+
+ /*
+ * optional override functions for voltage set/get
+ * these are currently only used for SMPS regulators
+ */
+ int (*get_voltage)(void *data);
+ int (*set_voltage)(void *data, int target_uV);
+
+ /* data passed from board for external get/set voltage */
+ void *data;
+};
+
+
+/* LDO control registers ... offset is from the base of its register bank.
+ * The first three registers of all power resource banks help hardware to
+ * manage the various resource groups.
+ */
+/* Common offset in TWL4030/6030 */
+#define VREG_GRP 0
+/* TWL4030 register offsets */
+#define VREG_TYPE 1
+#define VREG_REMAP 2
+#define VREG_DEDICATED 3 /* LDO control */
+#define VREG_VOLTAGE_SMPS_4030 9
+/* TWL6030 register offsets */
+#define VREG_TRANS 1
+#define VREG_STATE 2
+#define VREG_VOLTAGE 3
+#define VREG_VOLTAGE_SMPS 4
+/* TWL6030 Misc register offsets */
+#define VREG_BC_ALL 1
+#define VREG_BC_REF 2
+#define VREG_BC_PROC 3
+#define VREG_BC_CLK_RST 4
+
+/* TWL6030 LDO register values for CFG_STATE */
+#define TWL6030_CFG_STATE_OFF 0x00
+#define TWL6030_CFG_STATE_ON 0x01
+#define TWL6030_CFG_STATE_OFF2 0x02
+#define TWL6030_CFG_STATE_SLEEP 0x03
+#define TWL6030_CFG_STATE_GRP_SHIFT 5
+#define TWL6030_CFG_STATE_APP_SHIFT 2
+#define TWL6030_CFG_STATE_APP_MASK (0x03 << TWL6030_CFG_STATE_APP_SHIFT)
+#define TWL6030_CFG_STATE_APP(v) (((v) & TWL6030_CFG_STATE_APP_MASK) >>\
+ TWL6030_CFG_STATE_APP_SHIFT)
+
+/* Flags for SMPS Voltage reading */
+#define SMPS_OFFSET_EN BIT(0)
+#define SMPS_EXTENDED_EN BIT(1)
+
+/* twl6025 SMPS EPROM values */
+#define TWL6030_SMPS_OFFSET 0xB0
+#define TWL6030_SMPS_MULT 0xB3
+#define SMPS_MULTOFFSET_SMPS4 BIT(0)
+#define SMPS_MULTOFFSET_VIO BIT(1)
+#define SMPS_MULTOFFSET_SMPS3 BIT(6)
+
+static inline int
+twlreg_read(struct twlreg_info *info, unsigned slave_subgp, unsigned offset)
+{
+ u8 value;
+ int status;
+
+ status = twl_i2c_read_u8(slave_subgp,
+ &value, info->base + offset);
+ return (status < 0) ? status : value;
+}
+
+static inline int
+twlreg_write(struct twlreg_info *info, unsigned slave_subgp, unsigned offset,
+ u8 value)
+{
+ return twl_i2c_write_u8(slave_subgp,
+ value, info->base + offset);
+}
+
+/*----------------------------------------------------------------------*/
+
+/* generic power resource operations, which work on all regulators */
+
+static int twlreg_grp(struct regulator_dev *rdev)
+{
+ return twlreg_read(rdev_get_drvdata(rdev), TWL_MODULE_PM_RECEIVER,
+ VREG_GRP);
+}
+
+/*
+ * Enable/disable regulators by joining/leaving the P1 (processor) group.
+ * We assume nobody else is updating the DEV_GRP registers.
+ */
+/* definition for 4030 family */
+#define P3_GRP_4030 BIT(7) /* "peripherals" */
+#define P2_GRP_4030 BIT(6) /* secondary processor, modem, etc */
+#define P1_GRP_4030 BIT(5) /* CPU/Linux */
+/* definition for 6030 family */
+#define P3_GRP_6030 BIT(2) /* secondary processor, modem, etc */
+#define P2_GRP_6030 BIT(1) /* "peripherals" */
+#define P1_GRP_6030 BIT(0) /* CPU/Linux */
+
+static int twl4030reg_is_enabled(struct regulator_dev *rdev)
+{
+ int state = twlreg_grp(rdev);
+
+ if (state < 0)
+ return state;
+
+ return state & P1_GRP_4030;
+}
+
+static int twl6030reg_is_enabled(struct regulator_dev *rdev)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int grp = 0, val;
+
+ if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS)))
+ grp = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_GRP);
+ if (grp < 0)
+ return grp;
+
+ if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS)))
+ grp &= P1_GRP_6030;
+ else
+ grp = 1;
+
+ val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
+ val = TWL6030_CFG_STATE_APP(val);
+
+ return grp && (val == TWL6030_CFG_STATE_ON);
+}
+
+static int twl4030reg_enable(struct regulator_dev *rdev)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int grp;
+ int ret;
+
+ grp = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_GRP);
+ if (grp < 0)
+ return grp;
+
+ grp |= P1_GRP_4030;
+
+ ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp);
+
+ udelay(info->delay);
+
+ return ret;
+}
+
+static int twl6030reg_enable(struct regulator_dev *rdev)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int grp = 0;
+ int ret;
+
+ if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS)))
+ grp = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_GRP);
+ if (grp < 0)
+ return grp;
+
+ ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE,
+ grp << TWL6030_CFG_STATE_GRP_SHIFT |
+ TWL6030_CFG_STATE_ON);
+
+ udelay(info->delay);
+
+ return ret;
+}
+
+static int twl4030reg_disable(struct regulator_dev *rdev)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int grp;
+ int ret;
+
+ grp = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_GRP);
+ if (grp < 0)
+ return grp;
+
+ grp &= ~(P1_GRP_4030 | P2_GRP_4030 | P3_GRP_4030);
+
+ ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp);
+
+ return ret;
+}
+
+static int twl6030reg_disable(struct regulator_dev *rdev)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int grp = 0;
+ int ret;
+
+ if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS)))
+ grp = P1_GRP_6030 | P2_GRP_6030 | P3_GRP_6030;
+
+ /* For 6030, set the off state for all grps enabled */
+ ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE,
+ (grp) << TWL6030_CFG_STATE_GRP_SHIFT |
+ TWL6030_CFG_STATE_OFF);
+
+ return ret;
+}
+
+static int twl4030reg_get_status(struct regulator_dev *rdev)
+{
+ int state = twlreg_grp(rdev);
+
+ if (state < 0)
+ return state;
+ state &= 0x0f;
+
+ /* assume state != WARM_RESET; we'd not be running... */
+ if (!state)
+ return REGULATOR_STATUS_OFF;
+ return (state & BIT(3))
+ ? REGULATOR_STATUS_NORMAL
+ : REGULATOR_STATUS_STANDBY;
+}
+
+static int twl6030reg_get_status(struct regulator_dev *rdev)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int val;
+
+ val = twlreg_grp(rdev);
+ if (val < 0)
+ return val;
+
+ val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
+
+ switch (TWL6030_CFG_STATE_APP(val)) {
+ case TWL6030_CFG_STATE_ON:
+ return REGULATOR_STATUS_NORMAL;
+
+ case TWL6030_CFG_STATE_SLEEP:
+ return REGULATOR_STATUS_STANDBY;
+
+ case TWL6030_CFG_STATE_OFF:
+ case TWL6030_CFG_STATE_OFF2:
+ default:
+ break;
+ }
+
+ return REGULATOR_STATUS_OFF;
+}
+
+static int twl4030reg_set_mode(struct regulator_dev *rdev, unsigned mode)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ unsigned message;
+ int status;
+
+ /* We can only set the mode through state machine commands... */
+ switch (mode) {
+ case REGULATOR_MODE_NORMAL:
+ message = MSG_SINGULAR(DEV_GRP_P1, info->id, RES_STATE_ACTIVE);
+ break;
+ case REGULATOR_MODE_STANDBY:
+ message = MSG_SINGULAR(DEV_GRP_P1, info->id, RES_STATE_SLEEP);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* Ensure the resource is associated with some group */
+ status = twlreg_grp(rdev);
+ if (status < 0)
+ return status;
+ if (!(status & (P3_GRP_4030 | P2_GRP_4030 | P1_GRP_4030)))
+ return -EACCES;
+
+ status = twl_i2c_write_u8(TWL_MODULE_PM_MASTER,
+ message >> 8, TWL4030_PM_MASTER_PB_WORD_MSB);
+ if (status < 0)
+ return status;
+
+ return twl_i2c_write_u8(TWL_MODULE_PM_MASTER,
+ message & 0xff, TWL4030_PM_MASTER_PB_WORD_LSB);
+}
+
+static int twl6030reg_set_mode(struct regulator_dev *rdev, unsigned mode)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int grp = 0;
+ int val;
+
+ if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS)))
+ grp = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_GRP);
+
+ if (grp < 0)
+ return grp;
+
+ /* Compose the state register settings */
+ val = grp << TWL6030_CFG_STATE_GRP_SHIFT;
+ /* We can only set the mode through state machine commands... */
+ switch (mode) {
+ case REGULATOR_MODE_NORMAL:
+ val |= TWL6030_CFG_STATE_ON;
+ break;
+ case REGULATOR_MODE_STANDBY:
+ val |= TWL6030_CFG_STATE_SLEEP;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, val);
+}
+
+/*----------------------------------------------------------------------*/
+
+/*
+ * Support for adjustable-voltage LDOs uses a four bit (or less) voltage
+ * select field in its control register. We use tables indexed by VSEL
+ * to record voltages in milliVolts. (Accuracy is about three percent.)
+ *
+ * Note that VSEL values for VAUX2 changed in twl5030 and newer silicon;
+ * currently handled by listing two slightly different VAUX2 regulators,
+ * only one of which will be configured.
+ *
+ * VSEL values documented as "TI cannot support these values" are flagged
+ * in these tables as UNSUP() values; we normally won't assign them.
+ *
+ * VAUX3 at 3V is incorrectly listed in some TI manuals as unsupported.
+ * TI are revising the twl5030/tps659x0 specs to support that 3.0V setting.
+ */
+#ifdef CONFIG_TWL4030_ALLOW_UNSUPPORTED
+#define UNSUP_MASK 0x0000
+#else
+#define UNSUP_MASK 0x8000
+#endif
+
+#define UNSUP(x) (UNSUP_MASK | (x))
+#define IS_UNSUP(x) (UNSUP_MASK & (x))
+#define LDO_MV(x) (~UNSUP_MASK & (x))
+
+
+static const u16 VAUX1_VSEL_table[] = {
+ UNSUP(1500), UNSUP(1800), 2500, 2800,
+ 3000, 3000, 3000, 3000,
+};
+static const u16 VAUX2_4030_VSEL_table[] = {
+ UNSUP(1000), UNSUP(1000), UNSUP(1200), 1300,
+ 1500, 1800, UNSUP(1850), 2500,
+ UNSUP(2600), 2800, UNSUP(2850), UNSUP(3000),
+ UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
+};
+static const u16 VAUX2_VSEL_table[] = {
+ 1700, 1700, 1900, 1300,
+ 1500, 1800, 2000, 2500,
+ 2100, 2800, 2200, 2300,
+ 2400, 2400, 2400, 2400,
+};
+static const u16 VAUX3_VSEL_table[] = {
+ 1500, 1800, 2500, 2800,
+ 3000, 3000, 3000, 3000,
+};
+static const u16 VAUX4_VSEL_table[] = {
+ 700, 1000, 1200, UNSUP(1300),
+ 1500, 1800, UNSUP(1850), 2500,
+ UNSUP(2600), 2800, UNSUP(2850), UNSUP(3000),
+ UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
+};
+static const u16 VMMC1_VSEL_table[] = {
+ 1850, 2850, 3000, 3150,
+};
+static const u16 VMMC2_VSEL_table[] = {
+ UNSUP(1000), UNSUP(1000), UNSUP(1200), UNSUP(1300),
+ UNSUP(1500), UNSUP(1800), 1850, UNSUP(2500),
+ 2600, 2800, 2850, 3000,
+ 3150, 3150, 3150, 3150,
+};
+static const u16 VPLL1_VSEL_table[] = {
+ 1000, 1200, 1300, 1800,
+ UNSUP(2800), UNSUP(3000), UNSUP(3000), UNSUP(3000),
+};
+static const u16 VPLL2_VSEL_table[] = {
+ 700, 1000, 1200, 1300,
+ UNSUP(1500), 1800, UNSUP(1850), UNSUP(2500),
+ UNSUP(2600), UNSUP(2800), UNSUP(2850), UNSUP(3000),
+ UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
+};
+static const u16 VSIM_VSEL_table[] = {
+ UNSUP(1000), UNSUP(1200), UNSUP(1300), 1800,
+ 2800, 3000, 3000, 3000,
+};
+static const u16 VDAC_VSEL_table[] = {
+ 1200, 1300, 1800, 1800,
+};
+static const u16 VDD1_VSEL_table[] = {
+ 800, 1450,
+};
+static const u16 VDD2_VSEL_table[] = {
+ 800, 1450, 1500,
+};
+static const u16 VIO_VSEL_table[] = {
+ 1800, 1850,
+};
+static const u16 VINTANA2_VSEL_table[] = {
+ 2500, 2750,
+};
+
+static int twl4030ldo_list_voltage(struct regulator_dev *rdev, unsigned index)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int mV = info->table[index];
+
+ return IS_UNSUP(mV) ? 0 : (LDO_MV(mV) * 1000);
+}
+
+static int
+twl4030ldo_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
+ unsigned *selector)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int vsel;
+
+ for (vsel = 0; vsel < info->table_len; vsel++) {
+ int mV = info->table[vsel];
+ int uV;
+
+ if (IS_UNSUP(mV))
+ continue;
+ uV = LDO_MV(mV) * 1000;
+
+ /* REVISIT for VAUX2, first match may not be best/lowest */
+
+ /* use the first in-range value */
+ if (min_uV <= uV && uV <= max_uV) {
+ *selector = vsel;
+ return twlreg_write(info, TWL_MODULE_PM_RECEIVER,
+ VREG_VOLTAGE, vsel);
+ }
+ }
+
+ return -EDOM;
+}
+
+static int twl4030ldo_get_voltage(struct regulator_dev *rdev)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER,
+ VREG_VOLTAGE);
+
+ if (vsel < 0)
+ return vsel;
+
+ vsel &= info->table_len - 1;
+ return LDO_MV(info->table[vsel]) * 1000;
+}
+
+static struct regulator_ops twl4030ldo_ops = {
+ .list_voltage = twl4030ldo_list_voltage,
+
+ .set_voltage = twl4030ldo_set_voltage,
+ .get_voltage = twl4030ldo_get_voltage,
+
+ .enable = twl4030reg_enable,
+ .disable = twl4030reg_disable,
+ .is_enabled = twl4030reg_is_enabled,
+
+ .set_mode = twl4030reg_set_mode,
+
+ .get_status = twl4030reg_get_status,
+};
+
+static int
+twl4030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
+ unsigned *selector)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int vsel = DIV_ROUND_UP(min_uV - 600000, 12500);
+
+ if (info->set_voltage) {
+ return info->set_voltage(info->data, min_uV);
+ } else {
+ twlreg_write(info, TWL_MODULE_PM_RECEIVER,
+ VREG_VOLTAGE_SMPS_4030, vsel);
+ }
+
+ return 0;
+}
+
+static int twl4030smps_get_voltage(struct regulator_dev *rdev)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int vsel;
+
+ if (info->get_voltage)
+ return info->get_voltage(info->data);
+
+ vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER,
+ VREG_VOLTAGE_SMPS_4030);
+
+ return vsel * 12500 + 600000;
+}
+
+static struct regulator_ops twl4030smps_ops = {
+ .set_voltage = twl4030smps_set_voltage,
+ .get_voltage = twl4030smps_get_voltage,
+};
+
+static int twl6030coresmps_set_voltage(struct regulator_dev *rdev, int min_uV,
+ int max_uV, unsigned *selector)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+
+ if (info->set_voltage)
+ return info->set_voltage(info->data, min_uV);
+
+ return -ENODEV;
+}
+
+static int twl6030coresmps_get_voltage(struct regulator_dev *rdev)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+
+ if (info->get_voltage)
+ return info->get_voltage(info->data);
+
+ return -ENODEV;
+}
+
+static struct regulator_ops twl6030coresmps_ops = {
+ .set_voltage = twl6030coresmps_set_voltage,
+ .get_voltage = twl6030coresmps_get_voltage,
+};
+
+static int twl6030ldo_list_voltage(struct regulator_dev *rdev, unsigned index)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+
+ return ((info->min_mV + (index * 100)) * 1000);
+}
+
+static int
+twl6030ldo_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
+ unsigned *selector)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int vsel;
+
+ if ((min_uV/1000 < info->min_mV) || (max_uV/1000 > info->max_mV))
+ return -EDOM;
+
+ /*
+ * Use the below formula to calculate vsel
+ * mV = 1000mv + 100mv * (vsel - 1)
+ */
+ vsel = (min_uV/1000 - 1000)/100 + 1;
+ *selector = vsel;
+ return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE, vsel);
+
+}
+
+static int twl6030ldo_get_voltage(struct regulator_dev *rdev)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER,
+ VREG_VOLTAGE);
+
+ if (vsel < 0)
+ return vsel;
+
+ /*
+ * Use the below formula to calculate vsel
+ * mV = 1000mv + 100mv * (vsel - 1)
+ */
+ return (1000 + (100 * (vsel - 1))) * 1000;
+}
+
+static struct regulator_ops twl6030ldo_ops = {
+ .list_voltage = twl6030ldo_list_voltage,
+
+ .set_voltage = twl6030ldo_set_voltage,
+ .get_voltage = twl6030ldo_get_voltage,
+
+ .enable = twl6030reg_enable,
+ .disable = twl6030reg_disable,
+ .is_enabled = twl6030reg_is_enabled,
+
+ .set_mode = twl6030reg_set_mode,
+
+ .get_status = twl6030reg_get_status,
+};
+
+/*----------------------------------------------------------------------*/
+
+/*
+ * Fixed voltage LDOs don't have a VSEL field to update.
+ */
+static int twlfixed_list_voltage(struct regulator_dev *rdev, unsigned index)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+
+ return info->min_mV * 1000;
+}
+
+static int twlfixed_get_voltage(struct regulator_dev *rdev)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+
+ return info->min_mV * 1000;
+}
+
+static struct regulator_ops twl4030fixed_ops = {
+ .list_voltage = twlfixed_list_voltage,
+
+ .get_voltage = twlfixed_get_voltage,
+
+ .enable = twl4030reg_enable,
+ .disable = twl4030reg_disable,
+ .is_enabled = twl4030reg_is_enabled,
+
+ .set_mode = twl4030reg_set_mode,
+
+ .get_status = twl4030reg_get_status,
+};
+
+static struct regulator_ops twl6030fixed_ops = {
+ .list_voltage = twlfixed_list_voltage,
+
+ .get_voltage = twlfixed_get_voltage,
+
+ .enable = twl6030reg_enable,
+ .disable = twl6030reg_disable,
+ .is_enabled = twl6030reg_is_enabled,
+
+ .set_mode = twl6030reg_set_mode,
+
+ .get_status = twl6030reg_get_status,
+};
+
+static struct regulator_ops twl6030_fixed_resource = {
+ .enable = twl6030reg_enable,
+ .disable = twl6030reg_disable,
+ .is_enabled = twl6030reg_is_enabled,
+ .get_status = twl6030reg_get_status,
+};
+
+/*
+ * SMPS status and control
+ */
+
+static int twl6030smps_list_voltage(struct regulator_dev *rdev, unsigned index)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+
+ int voltage = 0;
+
+ switch (info->flags) {
+ case SMPS_OFFSET_EN:
+ voltage = 100000;
+ /* fall through */
+ case 0:
+ switch (index) {
+ case 0:
+ voltage = 0;
+ break;
+ case 58:
+ voltage = 1350 * 1000;
+ break;
+ case 59:
+ voltage = 1500 * 1000;
+ break;
+ case 60:
+ voltage = 1800 * 1000;
+ break;
+ case 61:
+ voltage = 1900 * 1000;
+ break;
+ case 62:
+ voltage = 2100 * 1000;
+ break;
+ default:
+ voltage += (600000 + (12500 * (index - 1)));
+ }
+ break;
+ case SMPS_EXTENDED_EN:
+ switch (index) {
+ case 0:
+ voltage = 0;
+ break;
+ case 58:
+ voltage = 2084 * 1000;
+ break;
+ case 59:
+ voltage = 2315 * 1000;
+ break;
+ case 60:
+ voltage = 2778 * 1000;
+ break;
+ case 61:
+ voltage = 2932 * 1000;
+ break;
+ case 62:
+ voltage = 3241 * 1000;
+ break;
+ default:
+ voltage = (1852000 + (38600 * (index - 1)));
+ }
+ break;
+ case SMPS_OFFSET_EN | SMPS_EXTENDED_EN:
+ switch (index) {
+ case 0:
+ voltage = 0;
+ break;
+ case 58:
+ voltage = 4167 * 1000;
+ break;
+ case 59:
+ voltage = 2315 * 1000;
+ break;
+ case 60:
+ voltage = 2778 * 1000;
+ break;
+ case 61:
+ voltage = 2932 * 1000;
+ break;
+ case 62:
+ voltage = 3241 * 1000;
+ break;
+ default:
+ voltage = (2161000 + (38600 * (index - 1)));
+ }
+ break;
+ }
+
+ return voltage;
+}
+
+static int
+twl6030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
+ unsigned int *selector)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+ int vsel = 0;
+
+ switch (info->flags) {
+ case 0:
+ if (min_uV == 0)
+ vsel = 0;
+ else if ((min_uV >= 600000) && (min_uV <= 1300000)) {
+ int calc_uV;
+ vsel = (min_uV - 600000) / 125;
+ if (vsel % 100)
+ vsel += 100;
+ vsel /= 100;
+ vsel++;
+ calc_uV = twl6030smps_list_voltage(rdev, vsel);
+ if (calc_uV > max_uV)
+ return -EINVAL;
+ }
+ /* Values 1..57 for vsel are linear and can be calculated
+ * values 58..62 are non linear.
+ */
+ else if ((min_uV > 1900000) && (max_uV >= 2100000))
+ vsel = 62;
+ else if ((min_uV > 1800000) && (max_uV >= 1900000))
+ vsel = 61;
+ else if ((min_uV > 1500000) && (max_uV >= 1800000))
+ vsel = 60;
+ else if ((min_uV > 1350000) && (max_uV >= 1500000))
+ vsel = 59;
+ else if ((min_uV > 1300000) && (max_uV >= 1350000))
+ vsel = 58;
+ else
+ return -EINVAL;
+ break;
+ case SMPS_OFFSET_EN:
+ if (min_uV == 0)
+ vsel = 0;
+ else if ((min_uV >= 700000) && (min_uV <= 1420000)) {
+ int calc_uV;
+ vsel = (min_uV - 700000) / 125;
+ if (vsel % 100)
+ vsel += 100;
+ vsel /= 100;
+ vsel++;
+ calc_uV = twl6030smps_list_voltage(rdev, vsel);
+ if (calc_uV > max_uV)
+ return -EINVAL;
+ }
+ /* Values 1..57 for vsel are linear and can be calculated
+ * values 58..62 are non linear.
+ */
+ else if ((min_uV > 1900000) && (max_uV >= 2100000))
+ vsel = 62;
+ else if ((min_uV > 1800000) && (max_uV >= 1900000))
+ vsel = 61;
+ else if ((min_uV > 1350000) && (max_uV >= 1800000))
+ vsel = 60;
+ else if ((min_uV > 1350000) && (max_uV >= 1500000))
+ vsel = 59;
+ else if ((min_uV > 1300000) && (max_uV >= 1350000))
+ vsel = 58;
+ else
+ return -EINVAL;
+ break;
+ case SMPS_EXTENDED_EN:
+ if (min_uV == 0)
+ vsel = 0;
+ else if ((min_uV >= 1852000) && (max_uV <= 4013600)) {
+ vsel = (min_uV - 1852000) / 386;
+ if (vsel % 100)
+ vsel += 100;
+ vsel /= 100;
+ vsel++;
+ }
+ break;
+ case SMPS_OFFSET_EN|SMPS_EXTENDED_EN:
+ if (min_uV == 0)
+ vsel = 0;
+ else if ((min_uV >= 2161000) && (max_uV <= 4321000)) {
+ vsel = (min_uV - 2161000) / 386;
+ if (vsel % 100)
+ vsel += 100;
+ vsel /= 100;
+ vsel++;
+ }
+ break;
+ }
+
+ *selector = vsel;
+
+ return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS,
+ vsel);
+}
+
+static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct twlreg_info *info = rdev_get_drvdata(rdev);
+
+ return twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS);
+}
+
+static struct regulator_ops twlsmps_ops = {
+ .list_voltage = twl6030smps_list_voltage,
+
+ .set_voltage = twl6030smps_set_voltage,
+ .get_voltage_sel = twl6030smps_get_voltage_sel,
+
+ .enable = twl6030reg_enable,
+ .disable = twl6030reg_disable,
+ .is_enabled = twl6030reg_is_enabled,
+
+ .set_mode = twl6030reg_set_mode,
+
+ .get_status = twl6030reg_get_status,
+};
+
+/*----------------------------------------------------------------------*/
+
+#define TWL4030_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
+ remap_conf) \
+ TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
+ remap_conf, TWL4030, twl4030fixed_ops)
+#define TWL6030_FIXED_LDO(label, offset, mVolts, turnon_delay) \
+ TWL_FIXED_LDO(label, offset, mVolts, 0x0, turnon_delay, \
+ 0x0, TWL6030, twl6030fixed_ops)
+
+#define TWL4030_ADJUSTABLE_LDO(label, offset, num, turnon_delay, remap_conf) \
+static struct twlreg_info TWL4030_INFO_##label = { \
+ .base = offset, \
+ .id = num, \
+ .table_len = ARRAY_SIZE(label##_VSEL_table), \
+ .table = label##_VSEL_table, \
+ .delay = turnon_delay, \
+ .remap = remap_conf, \
+ .desc = { \
+ .name = #label, \
+ .id = TWL4030_REG_##label, \
+ .n_voltages = ARRAY_SIZE(label##_VSEL_table), \
+ .ops = &twl4030ldo_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ }, \
+ }
+
+#define TWL4030_ADJUSTABLE_SMPS(label, offset, num, turnon_delay, remap_conf) \
+static struct twlreg_info TWL4030_INFO_##label = { \
+ .base = offset, \
+ .id = num, \
+ .delay = turnon_delay, \
+ .remap = remap_conf, \
+ .desc = { \
+ .name = #label, \
+ .id = TWL4030_REG_##label, \
+ .ops = &twl4030smps_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ }, \
+ }
+
+#define TWL6030_ADJUSTABLE_SMPS(label) \
+static struct twlreg_info TWL6030_INFO_##label = { \
+ .desc = { \
+ .name = #label, \
+ .id = TWL6030_REG_##label, \
+ .ops = &twl6030coresmps_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ }, \
+ }
+
+#define TWL6030_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
+static struct twlreg_info TWL6030_INFO_##label = { \
+ .base = offset, \
+ .min_mV = min_mVolts, \
+ .max_mV = max_mVolts, \
+ .desc = { \
+ .name = #label, \
+ .id = TWL6030_REG_##label, \
+ .n_voltages = (max_mVolts - min_mVolts)/100 + 1, \
+ .ops = &twl6030ldo_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ }, \
+ }
+
+#define TWL6025_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
+static struct twlreg_info TWL6025_INFO_##label = { \
+ .base = offset, \
+ .min_mV = min_mVolts, \
+ .max_mV = max_mVolts, \
+ .desc = { \
+ .name = #label, \
+ .id = TWL6025_REG_##label, \
+ .n_voltages = ((max_mVolts - min_mVolts)/100) + 1, \
+ .ops = &twl6030ldo_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ }, \
+ }
+
+#define TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, remap_conf, \
+ family, operations) \
+static struct twlreg_info TWLFIXED_INFO_##label = { \
+ .base = offset, \
+ .id = num, \
+ .min_mV = mVolts, \
+ .delay = turnon_delay, \
+ .remap = remap_conf, \
+ .desc = { \
+ .name = #label, \
+ .id = family##_REG_##label, \
+ .n_voltages = 1, \
+ .ops = &operations, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ }, \
+ }
+
+#define TWL6030_FIXED_RESOURCE(label, offset, turnon_delay) \
+static struct twlreg_info TWLRES_INFO_##label = { \
+ .base = offset, \
+ .delay = turnon_delay, \
+ .desc = { \
+ .name = #label, \
+ .id = TWL6030_REG_##label, \
+ .ops = &twl6030_fixed_resource, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ }, \
+ }
+
+#define TWL6025_ADJUSTABLE_SMPS(label, offset) \
+static struct twlreg_info TWLSMPS_INFO_##label = { \
+ .base = offset, \
+ .min_mV = 600, \
+ .max_mV = 2100, \
+ .desc = { \
+ .name = #label, \
+ .id = TWL6025_REG_##label, \
+ .n_voltages = 63, \
+ .ops = &twlsmps_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .owner = THIS_MODULE, \
+ }, \
+ }
+
+/*
+ * We list regulators here if systems need some level of
+ * software control over them after boot.
+ */
+TWL4030_ADJUSTABLE_LDO(VAUX1, 0x17, 1, 100, 0x08);
+TWL4030_ADJUSTABLE_LDO(VAUX2_4030, 0x1b, 2, 100, 0x08);
+TWL4030_ADJUSTABLE_LDO(VAUX2, 0x1b, 2, 100, 0x08);
+TWL4030_ADJUSTABLE_LDO(VAUX3, 0x1f, 3, 100, 0x08);
+TWL4030_ADJUSTABLE_LDO(VAUX4, 0x23, 4, 100, 0x08);
+TWL4030_ADJUSTABLE_LDO(VMMC1, 0x27, 5, 100, 0x08);
+TWL4030_ADJUSTABLE_LDO(VMMC2, 0x2b, 6, 100, 0x08);
+TWL4030_ADJUSTABLE_LDO(VPLL1, 0x2f, 7, 100, 0x00);
+TWL4030_ADJUSTABLE_LDO(VPLL2, 0x33, 8, 100, 0x08);
+TWL4030_ADJUSTABLE_LDO(VSIM, 0x37, 9, 100, 0x00);
+TWL4030_ADJUSTABLE_LDO(VDAC, 0x3b, 10, 100, 0x08);
+TWL4030_ADJUSTABLE_LDO(VINTANA2, 0x43, 12, 100, 0x08);
+TWL4030_ADJUSTABLE_LDO(VIO, 0x4b, 14, 1000, 0x08);
+TWL4030_ADJUSTABLE_SMPS(VDD1, 0x55, 15, 1000, 0x08);
+TWL4030_ADJUSTABLE_SMPS(VDD2, 0x63, 16, 1000, 0x08);
+/* VUSBCP is managed *only* by the USB subchip */
+/* 6030 REG with base as PMC Slave Misc : 0x0030 */
+/* Turnon-delay and remap configuration values for 6030 are not
+ verified since the specification is not public */
+TWL6030_ADJUSTABLE_SMPS(VDD1);
+TWL6030_ADJUSTABLE_SMPS(VDD2);
+TWL6030_ADJUSTABLE_SMPS(VDD3);
+TWL6030_ADJUSTABLE_LDO(VAUX1_6030, 0x54, 1000, 3300);
+TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0x58, 1000, 3300);
+TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0x5c, 1000, 3300);
+TWL6030_ADJUSTABLE_LDO(VMMC, 0x68, 1000, 3300);
+TWL6030_ADJUSTABLE_LDO(VPP, 0x6c, 1000, 3300);
+TWL6030_ADJUSTABLE_LDO(VUSIM, 0x74, 1000, 3300);
+/* 6025 are renamed compared to 6030 versions */
+TWL6025_ADJUSTABLE_LDO(LDO2, 0x54, 1000, 3300);
+TWL6025_ADJUSTABLE_LDO(LDO4, 0x58, 1000, 3300);
+TWL6025_ADJUSTABLE_LDO(LDO3, 0x5c, 1000, 3300);
+TWL6025_ADJUSTABLE_LDO(LDO5, 0x68, 1000, 3300);
+TWL6025_ADJUSTABLE_LDO(LDO1, 0x6c, 1000, 3300);
+TWL6025_ADJUSTABLE_LDO(LDO7, 0x74, 1000, 3300);
+TWL6025_ADJUSTABLE_LDO(LDO6, 0x60, 1000, 3300);
+TWL6025_ADJUSTABLE_LDO(LDOLN, 0x64, 1000, 3300);
+TWL6025_ADJUSTABLE_LDO(LDOUSB, 0x70, 1000, 3300);
+TWL4030_FIXED_LDO(VINTANA1, 0x3f, 1500, 11, 100, 0x08);
+TWL4030_FIXED_LDO(VINTDIG, 0x47, 1500, 13, 100, 0x08);
+TWL4030_FIXED_LDO(VUSB1V5, 0x71, 1500, 17, 100, 0x08);
+TWL4030_FIXED_LDO(VUSB1V8, 0x74, 1800, 18, 100, 0x08);
+TWL4030_FIXED_LDO(VUSB3V1, 0x77, 3100, 19, 150, 0x08);
+TWL6030_FIXED_LDO(VANA, 0x50, 2100, 0);
+TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 0);
+TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 0);
+TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 0);
+TWL6030_FIXED_LDO(V1V8, 0x16, 1800, 0);
+TWL6030_FIXED_LDO(V2V1, 0x1c, 2100, 0);
+TWL6030_FIXED_RESOURCE(CLK32KG, 0x8C, 0);
+TWL6025_ADJUSTABLE_SMPS(SMPS3, 0x34);
+TWL6025_ADJUSTABLE_SMPS(SMPS4, 0x10);
+TWL6025_ADJUSTABLE_SMPS(VIO, 0x16);
+
+static u8 twl_get_smps_offset(void)
+{
+ u8 value;
+
+ twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value,
+ TWL6030_SMPS_OFFSET);
+ return value;
+}
+
+static u8 twl_get_smps_mult(void)
+{
+ u8 value;
+
+ twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value,
+ TWL6030_SMPS_MULT);
+ return value;
+}
+
+#define TWL_OF_MATCH(comp, family, label) \
+ { \
+ .compatible = comp, \
+ .data = &family##_INFO_##label, \
+ }
+
+#define TWL4030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL4030, label)
+#define TWL6030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6030, label)
+#define TWL6025_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6025, label)
+#define TWLFIXED_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLFIXED, label)
+#define TWLRES_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLRES, label)
+#define TWLSMPS_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLSMPS, label)
+
+static const struct of_device_id twl_of_match[] __devinitconst = {
+ TWL4030_OF_MATCH("ti,twl4030-vaux1", VAUX1),
+ TWL4030_OF_MATCH("ti,twl4030-vaux2", VAUX2_4030),
+ TWL4030_OF_MATCH("ti,twl5030-vaux2", VAUX2),
+ TWL4030_OF_MATCH("ti,twl4030-vaux3", VAUX3),
+ TWL4030_OF_MATCH("ti,twl4030-vaux4", VAUX4),
+ TWL4030_OF_MATCH("ti,twl4030-vmmc1", VMMC1),
+ TWL4030_OF_MATCH("ti,twl4030-vmmc2", VMMC2),
+ TWL4030_OF_MATCH("ti,twl4030-vpll1", VPLL1),
+ TWL4030_OF_MATCH("ti,twl4030-vpll2", VPLL2),
+ TWL4030_OF_MATCH("ti,twl4030-vsim", VSIM),
+ TWL4030_OF_MATCH("ti,twl4030-vdac", VDAC),
+ TWL4030_OF_MATCH("ti,twl4030-vintana2", VINTANA2),
+ TWL4030_OF_MATCH("ti,twl4030-vio", VIO),
+ TWL4030_OF_MATCH("ti,twl4030-vdd1", VDD1),
+ TWL4030_OF_MATCH("ti,twl4030-vdd2", VDD2),
+ TWL6030_OF_MATCH("ti,twl6030-vdd1", VDD1),
+ TWL6030_OF_MATCH("ti,twl6030-vdd2", VDD2),
+ TWL6030_OF_MATCH("ti,twl6030-vdd3", VDD3),
+ TWL6030_OF_MATCH("ti,twl6030-vaux1", VAUX1_6030),
+ TWL6030_OF_MATCH("ti,twl6030-vaux2", VAUX2_6030),
+ TWL6030_OF_MATCH("ti,twl6030-vaux3", VAUX3_6030),
+ TWL6030_OF_MATCH("ti,twl6030-vmmc", VMMC),
+ TWL6030_OF_MATCH("ti,twl6030-vpp", VPP),
+ TWL6030_OF_MATCH("ti,twl6030-vusim", VUSIM),
+ TWL6025_OF_MATCH("ti,twl6025-ldo2", LDO2),
+ TWL6025_OF_MATCH("ti,twl6025-ldo4", LDO4),
+ TWL6025_OF_MATCH("ti,twl6025-ldo3", LDO3),
+ TWL6025_OF_MATCH("ti,twl6025-ldo5", LDO5),
+ TWL6025_OF_MATCH("ti,twl6025-ldo1", LDO1),
+ TWL6025_OF_MATCH("ti,twl6025-ldo7", LDO7),
+ TWL6025_OF_MATCH("ti,twl6025-ldo6", LDO6),
+ TWL6025_OF_MATCH("ti,twl6025-ldoln", LDOLN),
+ TWL6025_OF_MATCH("ti,twl6025-ldousb", LDOUSB),
+ TWLFIXED_OF_MATCH("ti,twl4030-vintana1", VINTANA1),
+ TWLFIXED_OF_MATCH("ti,twl4030-vintdig", VINTDIG),
+ TWLFIXED_OF_MATCH("ti,twl4030-vusb1v5", VUSB1V5),
+ TWLFIXED_OF_MATCH("ti,twl4030-vusb1v8", VUSB1V8),
+ TWLFIXED_OF_MATCH("ti,twl4030-vusb3v1", VUSB3V1),
+ TWLFIXED_OF_MATCH("ti,twl6030-vana", VANA),
+ TWLFIXED_OF_MATCH("ti,twl6030-vcxio", VCXIO),
+ TWLFIXED_OF_MATCH("ti,twl6030-vdac", VDAC),
+ TWLFIXED_OF_MATCH("ti,twl6030-vusb", VUSB),
+ TWLFIXED_OF_MATCH("ti,twl6030-v1v8", V1V8),
+ TWLFIXED_OF_MATCH("ti,twl6030-v2v1", V2V1),
+ TWLRES_OF_MATCH("ti,twl6030-clk32kg", CLK32KG),
+ TWLSMPS_OF_MATCH("ti,twl6025-smps3", SMPS3),
+ TWLSMPS_OF_MATCH("ti,twl6025-smps4", SMPS4),
+ TWLSMPS_OF_MATCH("ti,twl6025-vio", VIO),
+ {},
+};
+MODULE_DEVICE_TABLE(of, twl_of_match);
+
+static int __devinit twlreg_probe(struct platform_device *pdev)
+{
+ int i, id;
+ struct twlreg_info *info;
+ struct regulator_init_data *initdata;
+ struct regulation_constraints *c;
+ struct regulator_dev *rdev;
+ struct twl_regulator_driver_data *drvdata;
+ const struct of_device_id *match;
+
+ match = of_match_device(twl_of_match, &pdev->dev);
+ if (match) {
+ info = match->data;
+ id = info->desc.id;
+ initdata = of_get_regulator_init_data(&pdev->dev,
+ pdev->dev.of_node);
+ drvdata = NULL;
+ } else {
+ id = pdev->id;
+ initdata = pdev->dev.platform_data;
+ for (i = 0, info = NULL; i < ARRAY_SIZE(twl_of_match); i++) {
+ info = twl_of_match[i].data;
+ if (!info || info->desc.id != id)
+ continue;
+ break;
+ }
+ drvdata = initdata->driver_data;
+ if (!drvdata)
+ return -EINVAL;
+ }
+
+ if (!info)
+ return -ENODEV;
+
+ if (!initdata)
+ return -EINVAL;
+
+ if (drvdata) {
+ /* copy the driver data into regulator data */
+ info->features = drvdata->features;
+ info->data = drvdata->data;
+ info->set_voltage = drvdata->set_voltage;
+ info->get_voltage = drvdata->get_voltage;
+ }
+
+ /* Constrain board-specific capabilities according to what
+ * this driver and the chip itself can actually do.
+ */
+ c = &initdata->constraints;
+ c->valid_modes_mask &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY;
+ c->valid_ops_mask &= REGULATOR_CHANGE_VOLTAGE
+ | REGULATOR_CHANGE_MODE
+ | REGULATOR_CHANGE_STATUS;
+ switch (id) {
+ case TWL4030_REG_VIO:
+ case TWL4030_REG_VDD1:
+ case TWL4030_REG_VDD2:
+ case TWL4030_REG_VPLL1:
+ case TWL4030_REG_VINTANA1:
+ case TWL4030_REG_VINTANA2:
+ case TWL4030_REG_VINTDIG:
+ c->always_on = true;
+ break;
+ default:
+ break;
+ }
+
+ switch (id) {
+ case TWL6025_REG_SMPS3:
+ if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS3)
+ info->flags |= SMPS_EXTENDED_EN;
+ if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS3)
+ info->flags |= SMPS_OFFSET_EN;
+ break;
+ case TWL6025_REG_SMPS4:
+ if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS4)
+ info->flags |= SMPS_EXTENDED_EN;
+ if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS4)
+ info->flags |= SMPS_OFFSET_EN;
+ break;
+ case TWL6025_REG_VIO:
+ if (twl_get_smps_mult() & SMPS_MULTOFFSET_VIO)
+ info->flags |= SMPS_EXTENDED_EN;
+ if (twl_get_smps_offset() & SMPS_MULTOFFSET_VIO)
+ info->flags |= SMPS_OFFSET_EN;
+ break;
+ }
+
+ rdev = regulator_register(&info->desc, &pdev->dev, initdata, info,
+ pdev->dev.of_node);
+ if (IS_ERR(rdev)) {
+ dev_err(&pdev->dev, "can't register %s, %ld\n",
+ info->desc.name, PTR_ERR(rdev));
+ return PTR_ERR(rdev);
+ }
+ platform_set_drvdata(pdev, rdev);
+
+ if (twl_class_is_4030())
+ twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_REMAP,
+ info->remap);
+
+ /* NOTE: many regulators support short-circuit IRQs (presentable
+ * as REGULATOR_OVER_CURRENT notifications?) configured via:
+ * - SC_CONFIG
+ * - SC_DETECT1 (vintana2, vmmc1/2, vaux1/2/3/4)
+ * - SC_DETECT2 (vusb, vdac, vio, vdd1/2, vpll2)
+ * - IT_CONFIG
+ */
+
+ return 0;
+}
+
+static int __devexit twlreg_remove(struct platform_device *pdev)
+{
+ regulator_unregister(platform_get_drvdata(pdev));
+ return 0;
+}
+
+MODULE_ALIAS("platform:twl_reg");
+
+static struct platform_driver twlreg_driver = {
+ .probe = twlreg_probe,
+ .remove = __devexit_p(twlreg_remove),
+ /* NOTE: short name, to work around driver model truncation of
+ * "twl_regulator.12" (and friends) to "twl_regulator.1".
+ */
+ .driver = {
+ .name = "twl_reg",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(twl_of_match),
+ },
+};
+
+static int __init twlreg_init(void)
+{
+ return platform_driver_register(&twlreg_driver);
+}
+subsys_initcall(twlreg_init);
+
+static void __exit twlreg_exit(void)
+{
+ platform_driver_unregister(&twlreg_driver);
+}
+module_exit(twlreg_exit)
+
+MODULE_DESCRIPTION("TWL regulator driver");
+MODULE_LICENSE("GPL");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/userspace-consumer.c b/ap/os/linux/linux-3.4.x/drivers/regulator/userspace-consumer.c
new file mode 100644
index 0000000..518667e
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/userspace-consumer.c
@@ -0,0 +1,192 @@
+/*
+ * userspace-consumer.c
+ *
+ * Copyright 2009 CompuLab, Ltd.
+ *
+ * Author: Mike Rapoport <mike@compulab.co.il>
+ *
+ * Based of virtual consumer driver:
+ * Copyright 2008 Wolfson Microelectronics PLC.
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/regulator/userspace-consumer.h>
+#include <linux/slab.h>
+
+struct userspace_consumer_data {
+ const char *name;
+
+ struct mutex lock;
+ bool enabled;
+
+ int num_supplies;
+ struct regulator_bulk_data *supplies;
+};
+
+static ssize_t reg_show_name(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct userspace_consumer_data *data = dev_get_drvdata(dev);
+
+ return sprintf(buf, "%s\n", data->name);
+}
+
+static ssize_t reg_show_state(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct userspace_consumer_data *data = dev_get_drvdata(dev);
+
+ if (data->enabled)
+ return sprintf(buf, "enabled\n");
+
+ return sprintf(buf, "disabled\n");
+}
+
+static ssize_t reg_set_state(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct userspace_consumer_data *data = dev_get_drvdata(dev);
+ bool enabled;
+ int ret;
+
+ /*
+ * sysfs_streq() doesn't need the \n's, but we add them so the strings
+ * will be shared with show_state(), above.
+ */
+ if (sysfs_streq(buf, "enabled\n") || sysfs_streq(buf, "1"))
+ enabled = true;
+ else if (sysfs_streq(buf, "disabled\n") || sysfs_streq(buf, "0"))
+ enabled = false;
+ else {
+ dev_err(dev, "Configuring invalid mode\n");
+ return count;
+ }
+
+ mutex_lock(&data->lock);
+ if (enabled != data->enabled) {
+ if (enabled)
+ ret = regulator_bulk_enable(data->num_supplies,
+ data->supplies);
+ else
+ ret = regulator_bulk_disable(data->num_supplies,
+ data->supplies);
+
+ if (ret == 0)
+ data->enabled = enabled;
+ else
+ dev_err(dev, "Failed to configure state: %d\n", ret);
+ }
+ mutex_unlock(&data->lock);
+
+ return count;
+}
+
+static DEVICE_ATTR(name, 0444, reg_show_name, NULL);
+static DEVICE_ATTR(state, 0644, reg_show_state, reg_set_state);
+
+static struct attribute *attributes[] = {
+ &dev_attr_name.attr,
+ &dev_attr_state.attr,
+ NULL,
+};
+
+static const struct attribute_group attr_group = {
+ .attrs = attributes,
+};
+
+static int regulator_userspace_consumer_probe(struct platform_device *pdev)
+{
+ struct regulator_userspace_consumer_data *pdata;
+ struct userspace_consumer_data *drvdata;
+ int ret;
+
+ pdata = pdev->dev.platform_data;
+ if (!pdata)
+ return -EINVAL;
+
+ drvdata = kzalloc(sizeof(struct userspace_consumer_data), GFP_KERNEL);
+ if (drvdata == NULL)
+ return -ENOMEM;
+
+ drvdata->name = pdata->name;
+ drvdata->num_supplies = pdata->num_supplies;
+ drvdata->supplies = pdata->supplies;
+
+ mutex_init(&drvdata->lock);
+
+ ret = regulator_bulk_get(&pdev->dev, drvdata->num_supplies,
+ drvdata->supplies);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to get supplies: %d\n", ret);
+ goto err_alloc_supplies;
+ }
+
+ ret = sysfs_create_group(&pdev->dev.kobj, &attr_group);
+ if (ret != 0)
+ goto err_create_attrs;
+
+ if (pdata->init_on) {
+ ret = regulator_bulk_enable(drvdata->num_supplies,
+ drvdata->supplies);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "Failed to set initial state: %d\n", ret);
+ goto err_enable;
+ }
+ }
+
+ drvdata->enabled = pdata->init_on;
+ platform_set_drvdata(pdev, drvdata);
+
+ return 0;
+
+err_enable:
+ sysfs_remove_group(&pdev->dev.kobj, &attr_group);
+
+err_create_attrs:
+ regulator_bulk_free(drvdata->num_supplies, drvdata->supplies);
+
+err_alloc_supplies:
+ kfree(drvdata);
+ return ret;
+}
+
+static int regulator_userspace_consumer_remove(struct platform_device *pdev)
+{
+ struct userspace_consumer_data *data = platform_get_drvdata(pdev);
+
+ sysfs_remove_group(&pdev->dev.kobj, &attr_group);
+
+ if (data->enabled)
+ regulator_bulk_disable(data->num_supplies, data->supplies);
+
+ regulator_bulk_free(data->num_supplies, data->supplies);
+ kfree(data);
+
+ return 0;
+}
+
+static struct platform_driver regulator_userspace_consumer_driver = {
+ .probe = regulator_userspace_consumer_probe,
+ .remove = regulator_userspace_consumer_remove,
+ .driver = {
+ .name = "reg-userspace-consumer",
+ },
+};
+
+module_platform_driver(regulator_userspace_consumer_driver);
+
+MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
+MODULE_DESCRIPTION("Userspace consumer for voltage and current regulators");
+MODULE_LICENSE("GPL");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/virtual.c b/ap/os/linux/linux-3.4.x/drivers/regulator/virtual.c
new file mode 100644
index 0000000..ee0b161
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/virtual.c
@@ -0,0 +1,360 @@
+/*
+ * reg-virtual-consumer.c
+ *
+ * Copyright 2008 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ */
+
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+
+struct virtual_consumer_data {
+ struct mutex lock;
+ struct regulator *regulator;
+ bool enabled;
+ int min_uV;
+ int max_uV;
+ int min_uA;
+ int max_uA;
+ unsigned int mode;
+};
+
+static void update_voltage_constraints(struct device *dev,
+ struct virtual_consumer_data *data)
+{
+ int ret;
+
+ if (data->min_uV && data->max_uV
+ && data->min_uV <= data->max_uV) {
+ dev_dbg(dev, "Requesting %d-%duV\n",
+ data->min_uV, data->max_uV);
+ ret = regulator_set_voltage(data->regulator,
+ data->min_uV, data->max_uV);
+ if (ret != 0) {
+ dev_err(dev,
+ "regulator_set_voltage() failed: %d\n", ret);
+ return;
+ }
+ }
+
+ if (data->min_uV && data->max_uV && !data->enabled) {
+ dev_dbg(dev, "Enabling regulator\n");
+ ret = regulator_enable(data->regulator);
+ if (ret == 0)
+ data->enabled = true;
+ else
+ dev_err(dev, "regulator_enable() failed: %d\n",
+ ret);
+ }
+
+ if (!(data->min_uV && data->max_uV) && data->enabled) {
+ dev_dbg(dev, "Disabling regulator\n");
+ ret = regulator_disable(data->regulator);
+ if (ret == 0)
+ data->enabled = false;
+ else
+ dev_err(dev, "regulator_disable() failed: %d\n",
+ ret);
+ }
+}
+
+static void update_current_limit_constraints(struct device *dev,
+ struct virtual_consumer_data *data)
+{
+ int ret;
+
+ if (data->max_uA
+ && data->min_uA <= data->max_uA) {
+ dev_dbg(dev, "Requesting %d-%duA\n",
+ data->min_uA, data->max_uA);
+ ret = regulator_set_current_limit(data->regulator,
+ data->min_uA, data->max_uA);
+ if (ret != 0) {
+ dev_err(dev,
+ "regulator_set_current_limit() failed: %d\n",
+ ret);
+ return;
+ }
+ }
+
+ if (data->max_uA && !data->enabled) {
+ dev_dbg(dev, "Enabling regulator\n");
+ ret = regulator_enable(data->regulator);
+ if (ret == 0)
+ data->enabled = true;
+ else
+ dev_err(dev, "regulator_enable() failed: %d\n",
+ ret);
+ }
+
+ if (!(data->min_uA && data->max_uA) && data->enabled) {
+ dev_dbg(dev, "Disabling regulator\n");
+ ret = regulator_disable(data->regulator);
+ if (ret == 0)
+ data->enabled = false;
+ else
+ dev_err(dev, "regulator_disable() failed: %d\n",
+ ret);
+ }
+}
+
+static ssize_t show_min_uV(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct virtual_consumer_data *data = dev_get_drvdata(dev);
+ return sprintf(buf, "%d\n", data->min_uV);
+}
+
+static ssize_t set_min_uV(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct virtual_consumer_data *data = dev_get_drvdata(dev);
+ long val;
+
+ if (strict_strtol(buf, 10, &val) != 0)
+ return count;
+
+ mutex_lock(&data->lock);
+
+ data->min_uV = val;
+ update_voltage_constraints(dev, data);
+
+ mutex_unlock(&data->lock);
+
+ return count;
+}
+
+static ssize_t show_max_uV(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct virtual_consumer_data *data = dev_get_drvdata(dev);
+ return sprintf(buf, "%d\n", data->max_uV);
+}
+
+static ssize_t set_max_uV(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct virtual_consumer_data *data = dev_get_drvdata(dev);
+ long val;
+
+ if (strict_strtol(buf, 10, &val) != 0)
+ return count;
+
+ mutex_lock(&data->lock);
+
+ data->max_uV = val;
+ update_voltage_constraints(dev, data);
+
+ mutex_unlock(&data->lock);
+
+ return count;
+}
+
+static ssize_t show_min_uA(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct virtual_consumer_data *data = dev_get_drvdata(dev);
+ return sprintf(buf, "%d\n", data->min_uA);
+}
+
+static ssize_t set_min_uA(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct virtual_consumer_data *data = dev_get_drvdata(dev);
+ long val;
+
+ if (strict_strtol(buf, 10, &val) != 0)
+ return count;
+
+ mutex_lock(&data->lock);
+
+ data->min_uA = val;
+ update_current_limit_constraints(dev, data);
+
+ mutex_unlock(&data->lock);
+
+ return count;
+}
+
+static ssize_t show_max_uA(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct virtual_consumer_data *data = dev_get_drvdata(dev);
+ return sprintf(buf, "%d\n", data->max_uA);
+}
+
+static ssize_t set_max_uA(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct virtual_consumer_data *data = dev_get_drvdata(dev);
+ long val;
+
+ if (strict_strtol(buf, 10, &val) != 0)
+ return count;
+
+ mutex_lock(&data->lock);
+
+ data->max_uA = val;
+ update_current_limit_constraints(dev, data);
+
+ mutex_unlock(&data->lock);
+
+ return count;
+}
+
+static ssize_t show_mode(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct virtual_consumer_data *data = dev_get_drvdata(dev);
+
+ switch (data->mode) {
+ case REGULATOR_MODE_FAST:
+ return sprintf(buf, "fast\n");
+ case REGULATOR_MODE_NORMAL:
+ return sprintf(buf, "normal\n");
+ case REGULATOR_MODE_IDLE:
+ return sprintf(buf, "idle\n");
+ case REGULATOR_MODE_STANDBY:
+ return sprintf(buf, "standby\n");
+ default:
+ return sprintf(buf, "unknown\n");
+ }
+}
+
+static ssize_t set_mode(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct virtual_consumer_data *data = dev_get_drvdata(dev);
+ unsigned int mode;
+ int ret;
+
+ /*
+ * sysfs_streq() doesn't need the \n's, but we add them so the strings
+ * will be shared with show_mode(), above.
+ */
+ if (sysfs_streq(buf, "fast\n"))
+ mode = REGULATOR_MODE_FAST;
+ else if (sysfs_streq(buf, "normal\n"))
+ mode = REGULATOR_MODE_NORMAL;
+ else if (sysfs_streq(buf, "idle\n"))
+ mode = REGULATOR_MODE_IDLE;
+ else if (sysfs_streq(buf, "standby\n"))
+ mode = REGULATOR_MODE_STANDBY;
+ else {
+ dev_err(dev, "Configuring invalid mode\n");
+ return count;
+ }
+
+ mutex_lock(&data->lock);
+ ret = regulator_set_mode(data->regulator, mode);
+ if (ret == 0)
+ data->mode = mode;
+ else
+ dev_err(dev, "Failed to configure mode: %d\n", ret);
+ mutex_unlock(&data->lock);
+
+ return count;
+}
+
+static DEVICE_ATTR(min_microvolts, 0666, show_min_uV, set_min_uV);
+static DEVICE_ATTR(max_microvolts, 0666, show_max_uV, set_max_uV);
+static DEVICE_ATTR(min_microamps, 0666, show_min_uA, set_min_uA);
+static DEVICE_ATTR(max_microamps, 0666, show_max_uA, set_max_uA);
+static DEVICE_ATTR(mode, 0666, show_mode, set_mode);
+
+static struct attribute *regulator_virtual_attributes[] = {
+ &dev_attr_min_microvolts.attr,
+ &dev_attr_max_microvolts.attr,
+ &dev_attr_min_microamps.attr,
+ &dev_attr_max_microamps.attr,
+ &dev_attr_mode.attr,
+ NULL
+};
+
+static const struct attribute_group regulator_virtual_attr_group = {
+ .attrs = regulator_virtual_attributes,
+};
+
+static int __devinit regulator_virtual_probe(struct platform_device *pdev)
+{
+ char *reg_id = pdev->dev.platform_data;
+ struct virtual_consumer_data *drvdata;
+ int ret;
+
+ drvdata = kzalloc(sizeof(struct virtual_consumer_data), GFP_KERNEL);
+ if (drvdata == NULL)
+ return -ENOMEM;
+
+ mutex_init(&drvdata->lock);
+
+ drvdata->regulator = regulator_get(&pdev->dev, reg_id);
+ if (IS_ERR(drvdata->regulator)) {
+ ret = PTR_ERR(drvdata->regulator);
+ dev_err(&pdev->dev, "Failed to obtain supply '%s': %d\n",
+ reg_id, ret);
+ goto err;
+ }
+
+ ret = sysfs_create_group(&pdev->dev.kobj,
+ ®ulator_virtual_attr_group);
+ if (ret != 0) {
+ dev_err(&pdev->dev,
+ "Failed to create attribute group: %d\n", ret);
+ goto err_regulator;
+ }
+
+ drvdata->mode = regulator_get_mode(drvdata->regulator);
+
+ platform_set_drvdata(pdev, drvdata);
+
+ return 0;
+
+err_regulator:
+ regulator_put(drvdata->regulator);
+err:
+ kfree(drvdata);
+ return ret;
+}
+
+static int __devexit regulator_virtual_remove(struct platform_device *pdev)
+{
+ struct virtual_consumer_data *drvdata = platform_get_drvdata(pdev);
+
+ sysfs_remove_group(&pdev->dev.kobj, ®ulator_virtual_attr_group);
+
+ if (drvdata->enabled)
+ regulator_disable(drvdata->regulator);
+ regulator_put(drvdata->regulator);
+
+ kfree(drvdata);
+
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static struct platform_driver regulator_virtual_consumer_driver = {
+ .probe = regulator_virtual_probe,
+ .remove = __devexit_p(regulator_virtual_remove),
+ .driver = {
+ .name = "reg-virt-consumer",
+ .owner = THIS_MODULE,
+ },
+};
+
+module_platform_driver(regulator_virtual_consumer_driver);
+
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("Virtual regulator consumer");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:reg-virt-consumer");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/wm831x-dcdc.c b/ap/os/linux/linux-3.4.x/drivers/regulator/wm831x-dcdc.c
new file mode 100644
index 0000000..97bb31d
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/wm831x-dcdc.c
@@ -0,0 +1,1053 @@
+/*
+ * wm831x-dcdc.c -- DC-DC buck convertor driver for the WM831x series
+ *
+ * Copyright 2009 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/gpio.h>
+#include <linux/slab.h>
+
+#include <linux/mfd/wm831x/core.h>
+#include <linux/mfd/wm831x/regulator.h>
+#include <linux/mfd/wm831x/pdata.h>
+
+#define WM831X_BUCKV_MAX_SELECTOR 0x68
+#define WM831X_BUCKP_MAX_SELECTOR 0x66
+
+#define WM831X_DCDC_MODE_FAST 0
+#define WM831X_DCDC_MODE_NORMAL 1
+#define WM831X_DCDC_MODE_IDLE 2
+#define WM831X_DCDC_MODE_STANDBY 3
+
+#define WM831X_DCDC_MAX_NAME 6
+
+/* Register offsets in control block */
+#define WM831X_DCDC_CONTROL_1 0
+#define WM831X_DCDC_CONTROL_2 1
+#define WM831X_DCDC_ON_CONFIG 2
+#define WM831X_DCDC_SLEEP_CONTROL 3
+#define WM831X_DCDC_DVS_CONTROL 4
+
+/*
+ * Shared
+ */
+
+struct wm831x_dcdc {
+ char name[WM831X_DCDC_MAX_NAME];
+ struct regulator_desc desc;
+ int base;
+ struct wm831x *wm831x;
+ struct regulator_dev *regulator;
+ int dvs_gpio;
+ int dvs_gpio_state;
+ int on_vsel;
+ int dvs_vsel;
+};
+
+static int wm831x_dcdc_is_enabled(struct regulator_dev *rdev)
+{
+ struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = dcdc->wm831x;
+ int mask = 1 << rdev_get_id(rdev);
+ int reg;
+
+ reg = wm831x_reg_read(wm831x, WM831X_DCDC_ENABLE);
+ if (reg < 0)
+ return reg;
+
+ if (reg & mask)
+ return 1;
+ else
+ return 0;
+}
+
+static int wm831x_dcdc_enable(struct regulator_dev *rdev)
+{
+ struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = dcdc->wm831x;
+ int mask = 1 << rdev_get_id(rdev);
+
+ return wm831x_set_bits(wm831x, WM831X_DCDC_ENABLE, mask, mask);
+}
+
+static int wm831x_dcdc_disable(struct regulator_dev *rdev)
+{
+ struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = dcdc->wm831x;
+ int mask = 1 << rdev_get_id(rdev);
+
+ return wm831x_set_bits(wm831x, WM831X_DCDC_ENABLE, mask, 0);
+}
+
+static unsigned int wm831x_dcdc_get_mode(struct regulator_dev *rdev)
+
+{
+ struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = dcdc->wm831x;
+ u16 reg = dcdc->base + WM831X_DCDC_ON_CONFIG;
+ int val;
+
+ val = wm831x_reg_read(wm831x, reg);
+ if (val < 0)
+ return val;
+
+ val = (val & WM831X_DC1_ON_MODE_MASK) >> WM831X_DC1_ON_MODE_SHIFT;
+
+ switch (val) {
+ case WM831X_DCDC_MODE_FAST:
+ return REGULATOR_MODE_FAST;
+ case WM831X_DCDC_MODE_NORMAL:
+ return REGULATOR_MODE_NORMAL;
+ case WM831X_DCDC_MODE_STANDBY:
+ return REGULATOR_MODE_STANDBY;
+ case WM831X_DCDC_MODE_IDLE:
+ return REGULATOR_MODE_IDLE;
+ default:
+ BUG();
+ return -EINVAL;
+ }
+}
+
+static int wm831x_dcdc_set_mode_int(struct wm831x *wm831x, int reg,
+ unsigned int mode)
+{
+ int val;
+
+ switch (mode) {
+ case REGULATOR_MODE_FAST:
+ val = WM831X_DCDC_MODE_FAST;
+ break;
+ case REGULATOR_MODE_NORMAL:
+ val = WM831X_DCDC_MODE_NORMAL;
+ break;
+ case REGULATOR_MODE_STANDBY:
+ val = WM831X_DCDC_MODE_STANDBY;
+ break;
+ case REGULATOR_MODE_IDLE:
+ val = WM831X_DCDC_MODE_IDLE;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return wm831x_set_bits(wm831x, reg, WM831X_DC1_ON_MODE_MASK,
+ val << WM831X_DC1_ON_MODE_SHIFT);
+}
+
+static int wm831x_dcdc_set_mode(struct regulator_dev *rdev, unsigned int mode)
+{
+ struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = dcdc->wm831x;
+ u16 reg = dcdc->base + WM831X_DCDC_ON_CONFIG;
+
+ return wm831x_dcdc_set_mode_int(wm831x, reg, mode);
+}
+
+static int wm831x_dcdc_set_suspend_mode(struct regulator_dev *rdev,
+ unsigned int mode)
+{
+ struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = dcdc->wm831x;
+ u16 reg = dcdc->base + WM831X_DCDC_SLEEP_CONTROL;
+
+ return wm831x_dcdc_set_mode_int(wm831x, reg, mode);
+}
+
+static int wm831x_dcdc_get_status(struct regulator_dev *rdev)
+{
+ struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = dcdc->wm831x;
+ int ret;
+
+ /* First, check for errors */
+ ret = wm831x_reg_read(wm831x, WM831X_DCDC_UV_STATUS);
+ if (ret < 0)
+ return ret;
+
+ if (ret & (1 << rdev_get_id(rdev))) {
+ dev_dbg(wm831x->dev, "DCDC%d under voltage\n",
+ rdev_get_id(rdev) + 1);
+ return REGULATOR_STATUS_ERROR;
+ }
+
+ /* DCDC1 and DCDC2 can additionally detect high voltage/current */
+ if (rdev_get_id(rdev) < 2) {
+ if (ret & (WM831X_DC1_OV_STS << rdev_get_id(rdev))) {
+ dev_dbg(wm831x->dev, "DCDC%d over voltage\n",
+ rdev_get_id(rdev) + 1);
+ return REGULATOR_STATUS_ERROR;
+ }
+
+ if (ret & (WM831X_DC1_HC_STS << rdev_get_id(rdev))) {
+ dev_dbg(wm831x->dev, "DCDC%d over current\n",
+ rdev_get_id(rdev) + 1);
+ return REGULATOR_STATUS_ERROR;
+ }
+ }
+
+ /* Is the regulator on? */
+ ret = wm831x_reg_read(wm831x, WM831X_DCDC_STATUS);
+ if (ret < 0)
+ return ret;
+ if (!(ret & (1 << rdev_get_id(rdev))))
+ return REGULATOR_STATUS_OFF;
+
+ /* TODO: When we handle hardware control modes so we can report the
+ * current mode. */
+ return REGULATOR_STATUS_ON;
+}
+
+static irqreturn_t wm831x_dcdc_uv_irq(int irq, void *data)
+{
+ struct wm831x_dcdc *dcdc = data;
+
+ regulator_notifier_call_chain(dcdc->regulator,
+ REGULATOR_EVENT_UNDER_VOLTAGE,
+ NULL);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t wm831x_dcdc_oc_irq(int irq, void *data)
+{
+ struct wm831x_dcdc *dcdc = data;
+
+ regulator_notifier_call_chain(dcdc->regulator,
+ REGULATOR_EVENT_OVER_CURRENT,
+ NULL);
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * BUCKV specifics
+ */
+
+static int wm831x_buckv_list_voltage(struct regulator_dev *rdev,
+ unsigned selector)
+{
+ if (selector <= 0x8)
+ return 600000;
+ if (selector <= WM831X_BUCKV_MAX_SELECTOR)
+ return 600000 + ((selector - 0x8) * 12500);
+ return -EINVAL;
+}
+
+static int wm831x_buckv_select_min_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV)
+{
+ u16 vsel;
+
+ if (min_uV < 600000)
+ vsel = 0;
+ else if (min_uV <= 1800000)
+ vsel = ((min_uV - 600000) / 12500) + 8;
+ else
+ return -EINVAL;
+
+ if (wm831x_buckv_list_voltage(rdev, vsel) > max_uV)
+ return -EINVAL;
+
+ return vsel;
+}
+
+static int wm831x_buckv_set_dvs(struct regulator_dev *rdev, int state)
+{
+ struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
+
+ if (state == dcdc->dvs_gpio_state)
+ return 0;
+
+ dcdc->dvs_gpio_state = state;
+ gpio_set_value(dcdc->dvs_gpio, state);
+
+ /* Should wait for DVS state change to be asserted if we have
+ * a GPIO for it, for now assume the device is configured
+ * for the fastest possible transition.
+ */
+
+ return 0;
+}
+
+static int wm831x_buckv_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = dcdc->wm831x;
+ int on_reg = dcdc->base + WM831X_DCDC_ON_CONFIG;
+ int dvs_reg = dcdc->base + WM831X_DCDC_DVS_CONTROL;
+ int vsel, ret;
+
+ vsel = wm831x_buckv_select_min_voltage(rdev, min_uV, max_uV);
+ if (vsel < 0)
+ return vsel;
+
+ *selector = vsel;
+
+ /* If this value is already set then do a GPIO update if we can */
+ if (dcdc->dvs_gpio && dcdc->on_vsel == vsel)
+ return wm831x_buckv_set_dvs(rdev, 0);
+
+ if (dcdc->dvs_gpio && dcdc->dvs_vsel == vsel)
+ return wm831x_buckv_set_dvs(rdev, 1);
+
+ /* Always set the ON status to the minimum voltage */
+ ret = wm831x_set_bits(wm831x, on_reg, WM831X_DC1_ON_VSEL_MASK, vsel);
+ if (ret < 0)
+ return ret;
+ dcdc->on_vsel = vsel;
+
+ if (!dcdc->dvs_gpio)
+ return ret;
+
+ /* Kick the voltage transition now */
+ ret = wm831x_buckv_set_dvs(rdev, 0);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * If this VSEL is higher than the last one we've seen then
+ * remember it as the DVS VSEL. This is optimised for CPUfreq
+ * usage where we want to get to the highest voltage very
+ * quickly.
+ */
+ if (vsel > dcdc->dvs_vsel) {
+ ret = wm831x_set_bits(wm831x, dvs_reg,
+ WM831X_DC1_DVS_VSEL_MASK,
+ vsel);
+ if (ret == 0)
+ dcdc->dvs_vsel = vsel;
+ else
+ dev_warn(wm831x->dev,
+ "Failed to set DCDC DVS VSEL: %d\n", ret);
+ }
+
+ return 0;
+}
+
+static int wm831x_buckv_set_suspend_voltage(struct regulator_dev *rdev,
+ int uV)
+{
+ struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = dcdc->wm831x;
+ u16 reg = dcdc->base + WM831X_DCDC_SLEEP_CONTROL;
+ int vsel;
+
+ vsel = wm831x_buckv_select_min_voltage(rdev, uV, uV);
+ if (vsel < 0)
+ return vsel;
+
+ return wm831x_set_bits(wm831x, reg, WM831X_DC1_SLP_VSEL_MASK, vsel);
+}
+
+static int wm831x_buckv_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
+
+ if (dcdc->dvs_gpio && dcdc->dvs_gpio_state)
+ return dcdc->dvs_vsel;
+ else
+ return dcdc->on_vsel;
+}
+
+/* Current limit options */
+static u16 wm831x_dcdc_ilim[] = {
+ 125, 250, 375, 500, 625, 750, 875, 1000
+};
+
+static int wm831x_buckv_set_current_limit(struct regulator_dev *rdev,
+ int min_uA, int max_uA)
+{
+ struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = dcdc->wm831x;
+ u16 reg = dcdc->base + WM831X_DCDC_CONTROL_2;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(wm831x_dcdc_ilim); i++) {
+ if ((min_uA <= wm831x_dcdc_ilim[i]) &&
+ (wm831x_dcdc_ilim[i] <= max_uA))
+ break;
+ }
+ if (i == ARRAY_SIZE(wm831x_dcdc_ilim))
+ return -EINVAL;
+
+ return wm831x_set_bits(wm831x, reg, WM831X_DC1_HC_THR_MASK,
+ i << WM831X_DC1_HC_THR_SHIFT);
+}
+
+static int wm831x_buckv_get_current_limit(struct regulator_dev *rdev)
+{
+ struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = dcdc->wm831x;
+ u16 reg = dcdc->base + WM831X_DCDC_CONTROL_2;
+ int val;
+
+ val = wm831x_reg_read(wm831x, reg);
+ if (val < 0)
+ return val;
+
+ val = (val & WM831X_DC1_HC_THR_MASK) >> WM831X_DC1_HC_THR_SHIFT;
+ return wm831x_dcdc_ilim[val];
+}
+
+static struct regulator_ops wm831x_buckv_ops = {
+ .set_voltage = wm831x_buckv_set_voltage,
+ .get_voltage_sel = wm831x_buckv_get_voltage_sel,
+ .list_voltage = wm831x_buckv_list_voltage,
+ .set_suspend_voltage = wm831x_buckv_set_suspend_voltage,
+ .set_current_limit = wm831x_buckv_set_current_limit,
+ .get_current_limit = wm831x_buckv_get_current_limit,
+
+ .is_enabled = wm831x_dcdc_is_enabled,
+ .enable = wm831x_dcdc_enable,
+ .disable = wm831x_dcdc_disable,
+ .get_status = wm831x_dcdc_get_status,
+ .get_mode = wm831x_dcdc_get_mode,
+ .set_mode = wm831x_dcdc_set_mode,
+ .set_suspend_mode = wm831x_dcdc_set_suspend_mode,
+};
+
+/*
+ * Set up DVS control. We just log errors since we can still run
+ * (with reduced performance) if we fail.
+ */
+static __devinit void wm831x_buckv_dvs_init(struct wm831x_dcdc *dcdc,
+ struct wm831x_buckv_pdata *pdata)
+{
+ struct wm831x *wm831x = dcdc->wm831x;
+ int ret;
+ u16 ctrl;
+
+ if (!pdata || !pdata->dvs_gpio)
+ return;
+
+ ret = gpio_request(pdata->dvs_gpio, "DCDC DVS");
+ if (ret < 0) {
+ dev_err(wm831x->dev, "Failed to get %s DVS GPIO: %d\n",
+ dcdc->name, ret);
+ return;
+ }
+
+ /* gpiolib won't let us read the GPIO status so pick the higher
+ * of the two existing voltages so we take it as platform data.
+ */
+ dcdc->dvs_gpio_state = pdata->dvs_init_state;
+
+ ret = gpio_direction_output(pdata->dvs_gpio, dcdc->dvs_gpio_state);
+ if (ret < 0) {
+ dev_err(wm831x->dev, "Failed to enable %s DVS GPIO: %d\n",
+ dcdc->name, ret);
+ gpio_free(pdata->dvs_gpio);
+ return;
+ }
+
+ dcdc->dvs_gpio = pdata->dvs_gpio;
+
+ switch (pdata->dvs_control_src) {
+ case 1:
+ ctrl = 2 << WM831X_DC1_DVS_SRC_SHIFT;
+ break;
+ case 2:
+ ctrl = 3 << WM831X_DC1_DVS_SRC_SHIFT;
+ break;
+ default:
+ dev_err(wm831x->dev, "Invalid DVS control source %d for %s\n",
+ pdata->dvs_control_src, dcdc->name);
+ return;
+ }
+
+ /* If DVS_VSEL is set to the minimum value then raise it to ON_VSEL
+ * to make bootstrapping a bit smoother.
+ */
+ if (!dcdc->dvs_vsel) {
+ ret = wm831x_set_bits(wm831x,
+ dcdc->base + WM831X_DCDC_DVS_CONTROL,
+ WM831X_DC1_DVS_VSEL_MASK, dcdc->on_vsel);
+ if (ret == 0)
+ dcdc->dvs_vsel = dcdc->on_vsel;
+ else
+ dev_warn(wm831x->dev, "Failed to set DVS_VSEL: %d\n",
+ ret);
+ }
+
+ ret = wm831x_set_bits(wm831x, dcdc->base + WM831X_DCDC_DVS_CONTROL,
+ WM831X_DC1_DVS_SRC_MASK, ctrl);
+ if (ret < 0) {
+ dev_err(wm831x->dev, "Failed to set %s DVS source: %d\n",
+ dcdc->name, ret);
+ }
+}
+
+static __devinit int wm831x_buckv_probe(struct platform_device *pdev)
+{
+ struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
+ struct wm831x_pdata *pdata = wm831x->dev->platform_data;
+ int id;
+ struct wm831x_dcdc *dcdc;
+ struct resource *res;
+ int ret, irq;
+
+ if (pdata && pdata->wm831x_num)
+ id = (pdata->wm831x_num * 10) + 1;
+ else
+ id = 0;
+ id = pdev->id - id;
+
+ dev_dbg(&pdev->dev, "Probing DCDC%d\n", id + 1);
+
+ if (pdata == NULL || pdata->dcdc[id] == NULL)
+ return -ENODEV;
+
+ dcdc = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_dcdc),
+ GFP_KERNEL);
+ if (dcdc == NULL) {
+ dev_err(&pdev->dev, "Unable to allocate private data\n");
+ return -ENOMEM;
+ }
+
+ dcdc->wm831x = wm831x;
+
+ res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "No I/O resource\n");
+ ret = -EINVAL;
+ goto err;
+ }
+ dcdc->base = res->start;
+
+ snprintf(dcdc->name, sizeof(dcdc->name), "DCDC%d", id + 1);
+ dcdc->desc.name = dcdc->name;
+ dcdc->desc.id = id;
+ dcdc->desc.type = REGULATOR_VOLTAGE;
+ dcdc->desc.n_voltages = WM831X_BUCKV_MAX_SELECTOR + 1;
+ dcdc->desc.ops = &wm831x_buckv_ops;
+ dcdc->desc.owner = THIS_MODULE;
+
+ ret = wm831x_reg_read(wm831x, dcdc->base + WM831X_DCDC_ON_CONFIG);
+ if (ret < 0) {
+ dev_err(wm831x->dev, "Failed to read ON VSEL: %d\n", ret);
+ goto err;
+ }
+ dcdc->on_vsel = ret & WM831X_DC1_ON_VSEL_MASK;
+
+ ret = wm831x_reg_read(wm831x, dcdc->base + WM831X_DCDC_DVS_CONTROL);
+ if (ret < 0) {
+ dev_err(wm831x->dev, "Failed to read DVS VSEL: %d\n", ret);
+ goto err;
+ }
+ dcdc->dvs_vsel = ret & WM831X_DC1_DVS_VSEL_MASK;
+
+ if (pdata->dcdc[id])
+ wm831x_buckv_dvs_init(dcdc, pdata->dcdc[id]->driver_data);
+
+ dcdc->regulator = regulator_register(&dcdc->desc, &pdev->dev,
+ pdata->dcdc[id], dcdc, NULL);
+ if (IS_ERR(dcdc->regulator)) {
+ ret = PTR_ERR(dcdc->regulator);
+ dev_err(wm831x->dev, "Failed to register DCDC%d: %d\n",
+ id + 1, ret);
+ goto err;
+ }
+
+ irq = platform_get_irq_byname(pdev, "UV");
+ ret = request_threaded_irq(irq, NULL, wm831x_dcdc_uv_irq,
+ IRQF_TRIGGER_RISING, dcdc->name, dcdc);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
+ irq, ret);
+ goto err_regulator;
+ }
+
+ irq = platform_get_irq_byname(pdev, "HC");
+ ret = request_threaded_irq(irq, NULL, wm831x_dcdc_oc_irq,
+ IRQF_TRIGGER_RISING, dcdc->name, dcdc);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "Failed to request HC IRQ %d: %d\n",
+ irq, ret);
+ goto err_uv;
+ }
+
+ platform_set_drvdata(pdev, dcdc);
+
+ return 0;
+
+err_uv:
+ free_irq(platform_get_irq_byname(pdev, "UV"), dcdc);
+err_regulator:
+ regulator_unregister(dcdc->regulator);
+err:
+ if (dcdc->dvs_gpio)
+ gpio_free(dcdc->dvs_gpio);
+ return ret;
+}
+
+static __devexit int wm831x_buckv_remove(struct platform_device *pdev)
+{
+ struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+
+ free_irq(platform_get_irq_byname(pdev, "HC"), dcdc);
+ free_irq(platform_get_irq_byname(pdev, "UV"), dcdc);
+ regulator_unregister(dcdc->regulator);
+ if (dcdc->dvs_gpio)
+ gpio_free(dcdc->dvs_gpio);
+
+ return 0;
+}
+
+static struct platform_driver wm831x_buckv_driver = {
+ .probe = wm831x_buckv_probe,
+ .remove = __devexit_p(wm831x_buckv_remove),
+ .driver = {
+ .name = "wm831x-buckv",
+ .owner = THIS_MODULE,
+ },
+};
+
+/*
+ * BUCKP specifics
+ */
+
+static int wm831x_buckp_list_voltage(struct regulator_dev *rdev,
+ unsigned selector)
+{
+ if (selector <= WM831X_BUCKP_MAX_SELECTOR)
+ return 850000 + (selector * 25000);
+ else
+ return -EINVAL;
+}
+
+static int wm831x_buckp_set_voltage_int(struct regulator_dev *rdev, int reg,
+ int min_uV, int max_uV, int *selector)
+{
+ struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = dcdc->wm831x;
+ u16 vsel;
+
+ if (min_uV <= 34000000)
+ vsel = (min_uV - 850000) / 25000;
+ else
+ return -EINVAL;
+
+ if (wm831x_buckp_list_voltage(rdev, vsel) > max_uV)
+ return -EINVAL;
+
+ *selector = vsel;
+
+ return wm831x_set_bits(wm831x, reg, WM831X_DC3_ON_VSEL_MASK, vsel);
+}
+
+static int wm831x_buckp_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV,
+ unsigned *selector)
+{
+ struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
+ u16 reg = dcdc->base + WM831X_DCDC_ON_CONFIG;
+
+ return wm831x_buckp_set_voltage_int(rdev, reg, min_uV, max_uV,
+ selector);
+}
+
+static int wm831x_buckp_set_suspend_voltage(struct regulator_dev *rdev,
+ int uV)
+{
+ struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
+ u16 reg = dcdc->base + WM831X_DCDC_SLEEP_CONTROL;
+ unsigned selector;
+
+ return wm831x_buckp_set_voltage_int(rdev, reg, uV, uV, &selector);
+}
+
+static int wm831x_buckp_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = dcdc->wm831x;
+ u16 reg = dcdc->base + WM831X_DCDC_ON_CONFIG;
+ int val;
+
+ val = wm831x_reg_read(wm831x, reg);
+ if (val < 0)
+ return val;
+
+ return val & WM831X_DC3_ON_VSEL_MASK;
+}
+
+static struct regulator_ops wm831x_buckp_ops = {
+ .set_voltage = wm831x_buckp_set_voltage,
+ .get_voltage_sel = wm831x_buckp_get_voltage_sel,
+ .list_voltage = wm831x_buckp_list_voltage,
+ .set_suspend_voltage = wm831x_buckp_set_suspend_voltage,
+
+ .is_enabled = wm831x_dcdc_is_enabled,
+ .enable = wm831x_dcdc_enable,
+ .disable = wm831x_dcdc_disable,
+ .get_status = wm831x_dcdc_get_status,
+ .get_mode = wm831x_dcdc_get_mode,
+ .set_mode = wm831x_dcdc_set_mode,
+ .set_suspend_mode = wm831x_dcdc_set_suspend_mode,
+};
+
+static __devinit int wm831x_buckp_probe(struct platform_device *pdev)
+{
+ struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
+ struct wm831x_pdata *pdata = wm831x->dev->platform_data;
+ int id;
+ struct wm831x_dcdc *dcdc;
+ struct resource *res;
+ int ret, irq;
+
+ if (pdata && pdata->wm831x_num)
+ id = (pdata->wm831x_num * 10) + 1;
+ else
+ id = 0;
+ id = pdev->id - id;
+
+ dev_dbg(&pdev->dev, "Probing DCDC%d\n", id + 1);
+
+ if (pdata == NULL || pdata->dcdc[id] == NULL)
+ return -ENODEV;
+
+ dcdc = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_dcdc),
+ GFP_KERNEL);
+ if (dcdc == NULL) {
+ dev_err(&pdev->dev, "Unable to allocate private data\n");
+ return -ENOMEM;
+ }
+
+ dcdc->wm831x = wm831x;
+
+ res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "No I/O resource\n");
+ ret = -EINVAL;
+ goto err;
+ }
+ dcdc->base = res->start;
+
+ snprintf(dcdc->name, sizeof(dcdc->name), "DCDC%d", id + 1);
+ dcdc->desc.name = dcdc->name;
+ dcdc->desc.id = id;
+ dcdc->desc.type = REGULATOR_VOLTAGE;
+ dcdc->desc.n_voltages = WM831X_BUCKP_MAX_SELECTOR + 1;
+ dcdc->desc.ops = &wm831x_buckp_ops;
+ dcdc->desc.owner = THIS_MODULE;
+
+ dcdc->regulator = regulator_register(&dcdc->desc, &pdev->dev,
+ pdata->dcdc[id], dcdc, NULL);
+ if (IS_ERR(dcdc->regulator)) {
+ ret = PTR_ERR(dcdc->regulator);
+ dev_err(wm831x->dev, "Failed to register DCDC%d: %d\n",
+ id + 1, ret);
+ goto err;
+ }
+
+ irq = platform_get_irq_byname(pdev, "UV");
+ ret = request_threaded_irq(irq, NULL, wm831x_dcdc_uv_irq,
+ IRQF_TRIGGER_RISING, dcdc->name, dcdc);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
+ irq, ret);
+ goto err_regulator;
+ }
+
+ platform_set_drvdata(pdev, dcdc);
+
+ return 0;
+
+err_regulator:
+ regulator_unregister(dcdc->regulator);
+err:
+ return ret;
+}
+
+static __devexit int wm831x_buckp_remove(struct platform_device *pdev)
+{
+ struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+
+ free_irq(platform_get_irq_byname(pdev, "UV"), dcdc);
+ regulator_unregister(dcdc->regulator);
+
+ return 0;
+}
+
+static struct platform_driver wm831x_buckp_driver = {
+ .probe = wm831x_buckp_probe,
+ .remove = __devexit_p(wm831x_buckp_remove),
+ .driver = {
+ .name = "wm831x-buckp",
+ .owner = THIS_MODULE,
+ },
+};
+
+/*
+ * DCDC boost convertors
+ */
+
+static int wm831x_boostp_get_status(struct regulator_dev *rdev)
+{
+ struct wm831x_dcdc *dcdc = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = dcdc->wm831x;
+ int ret;
+
+ /* First, check for errors */
+ ret = wm831x_reg_read(wm831x, WM831X_DCDC_UV_STATUS);
+ if (ret < 0)
+ return ret;
+
+ if (ret & (1 << rdev_get_id(rdev))) {
+ dev_dbg(wm831x->dev, "DCDC%d under voltage\n",
+ rdev_get_id(rdev) + 1);
+ return REGULATOR_STATUS_ERROR;
+ }
+
+ /* Is the regulator on? */
+ ret = wm831x_reg_read(wm831x, WM831X_DCDC_STATUS);
+ if (ret < 0)
+ return ret;
+ if (ret & (1 << rdev_get_id(rdev)))
+ return REGULATOR_STATUS_ON;
+ else
+ return REGULATOR_STATUS_OFF;
+}
+
+static struct regulator_ops wm831x_boostp_ops = {
+ .get_status = wm831x_boostp_get_status,
+
+ .is_enabled = wm831x_dcdc_is_enabled,
+ .enable = wm831x_dcdc_enable,
+ .disable = wm831x_dcdc_disable,
+};
+
+static __devinit int wm831x_boostp_probe(struct platform_device *pdev)
+{
+ struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
+ struct wm831x_pdata *pdata = wm831x->dev->platform_data;
+ int id = pdev->id % ARRAY_SIZE(pdata->dcdc);
+ struct wm831x_dcdc *dcdc;
+ struct resource *res;
+ int ret, irq;
+
+ dev_dbg(&pdev->dev, "Probing DCDC%d\n", id + 1);
+
+ if (pdata == NULL || pdata->dcdc[id] == NULL)
+ return -ENODEV;
+
+ dcdc = kzalloc(sizeof(struct wm831x_dcdc), GFP_KERNEL);
+ if (dcdc == NULL) {
+ dev_err(&pdev->dev, "Unable to allocate private data\n");
+ return -ENOMEM;
+ }
+
+ dcdc->wm831x = wm831x;
+
+ res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "No I/O resource\n");
+ ret = -EINVAL;
+ goto err;
+ }
+ dcdc->base = res->start;
+
+ snprintf(dcdc->name, sizeof(dcdc->name), "DCDC%d", id + 1);
+ dcdc->desc.name = dcdc->name;
+ dcdc->desc.id = id;
+ dcdc->desc.type = REGULATOR_VOLTAGE;
+ dcdc->desc.ops = &wm831x_boostp_ops;
+ dcdc->desc.owner = THIS_MODULE;
+
+ dcdc->regulator = regulator_register(&dcdc->desc, &pdev->dev,
+ pdata->dcdc[id], dcdc, NULL);
+ if (IS_ERR(dcdc->regulator)) {
+ ret = PTR_ERR(dcdc->regulator);
+ dev_err(wm831x->dev, "Failed to register DCDC%d: %d\n",
+ id + 1, ret);
+ goto err;
+ }
+
+ irq = platform_get_irq_byname(pdev, "UV");
+ ret = request_threaded_irq(irq, NULL, wm831x_dcdc_uv_irq,
+ IRQF_TRIGGER_RISING, dcdc->name,
+ dcdc);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
+ irq, ret);
+ goto err_regulator;
+ }
+
+ platform_set_drvdata(pdev, dcdc);
+
+ return 0;
+
+err_regulator:
+ regulator_unregister(dcdc->regulator);
+err:
+ kfree(dcdc);
+ return ret;
+}
+
+static __devexit int wm831x_boostp_remove(struct platform_device *pdev)
+{
+ struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+
+ free_irq(platform_get_irq_byname(pdev, "UV"), dcdc);
+ regulator_unregister(dcdc->regulator);
+ kfree(dcdc);
+
+ return 0;
+}
+
+static struct platform_driver wm831x_boostp_driver = {
+ .probe = wm831x_boostp_probe,
+ .remove = __devexit_p(wm831x_boostp_remove),
+ .driver = {
+ .name = "wm831x-boostp",
+ .owner = THIS_MODULE,
+ },
+};
+
+/*
+ * External Power Enable
+ *
+ * These aren't actually DCDCs but look like them in hardware so share
+ * code.
+ */
+
+#define WM831X_EPE_BASE 6
+
+static struct regulator_ops wm831x_epe_ops = {
+ .is_enabled = wm831x_dcdc_is_enabled,
+ .enable = wm831x_dcdc_enable,
+ .disable = wm831x_dcdc_disable,
+ .get_status = wm831x_dcdc_get_status,
+};
+
+static __devinit int wm831x_epe_probe(struct platform_device *pdev)
+{
+ struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
+ struct wm831x_pdata *pdata = wm831x->dev->platform_data;
+ int id = pdev->id % ARRAY_SIZE(pdata->epe);
+ struct wm831x_dcdc *dcdc;
+ int ret;
+
+ dev_dbg(&pdev->dev, "Probing EPE%d\n", id + 1);
+
+ if (pdata == NULL || pdata->epe[id] == NULL)
+ return -ENODEV;
+
+ dcdc = kzalloc(sizeof(struct wm831x_dcdc), GFP_KERNEL);
+ if (dcdc == NULL) {
+ dev_err(&pdev->dev, "Unable to allocate private data\n");
+ return -ENOMEM;
+ }
+
+ dcdc->wm831x = wm831x;
+
+ /* For current parts this is correct; probably need to revisit
+ * in future.
+ */
+ snprintf(dcdc->name, sizeof(dcdc->name), "EPE%d", id + 1);
+ dcdc->desc.name = dcdc->name;
+ dcdc->desc.id = id + WM831X_EPE_BASE; /* Offset in DCDC registers */
+ dcdc->desc.ops = &wm831x_epe_ops;
+ dcdc->desc.type = REGULATOR_VOLTAGE;
+ dcdc->desc.owner = THIS_MODULE;
+
+ dcdc->regulator = regulator_register(&dcdc->desc, &pdev->dev,
+ pdata->epe[id], dcdc, NULL);
+ if (IS_ERR(dcdc->regulator)) {
+ ret = PTR_ERR(dcdc->regulator);
+ dev_err(wm831x->dev, "Failed to register EPE%d: %d\n",
+ id + 1, ret);
+ goto err;
+ }
+
+ platform_set_drvdata(pdev, dcdc);
+
+ return 0;
+
+err:
+ kfree(dcdc);
+ return ret;
+}
+
+static __devexit int wm831x_epe_remove(struct platform_device *pdev)
+{
+ struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+
+ regulator_unregister(dcdc->regulator);
+ kfree(dcdc);
+
+ return 0;
+}
+
+static struct platform_driver wm831x_epe_driver = {
+ .probe = wm831x_epe_probe,
+ .remove = __devexit_p(wm831x_epe_remove),
+ .driver = {
+ .name = "wm831x-epe",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init wm831x_dcdc_init(void)
+{
+ int ret;
+ ret = platform_driver_register(&wm831x_buckv_driver);
+ if (ret != 0)
+ pr_err("Failed to register WM831x BUCKV driver: %d\n", ret);
+
+ ret = platform_driver_register(&wm831x_buckp_driver);
+ if (ret != 0)
+ pr_err("Failed to register WM831x BUCKP driver: %d\n", ret);
+
+ ret = platform_driver_register(&wm831x_boostp_driver);
+ if (ret != 0)
+ pr_err("Failed to register WM831x BOOST driver: %d\n", ret);
+
+ ret = platform_driver_register(&wm831x_epe_driver);
+ if (ret != 0)
+ pr_err("Failed to register WM831x EPE driver: %d\n", ret);
+
+ return 0;
+}
+subsys_initcall(wm831x_dcdc_init);
+
+static void __exit wm831x_dcdc_exit(void)
+{
+ platform_driver_unregister(&wm831x_epe_driver);
+ platform_driver_unregister(&wm831x_boostp_driver);
+ platform_driver_unregister(&wm831x_buckp_driver);
+ platform_driver_unregister(&wm831x_buckv_driver);
+}
+module_exit(wm831x_dcdc_exit);
+
+/* Module information */
+MODULE_AUTHOR("Mark Brown");
+MODULE_DESCRIPTION("WM831x DC-DC convertor driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:wm831x-buckv");
+MODULE_ALIAS("platform:wm831x-buckp");
+MODULE_ALIAS("platform:wm831x-epe");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/wm831x-isink.c b/ap/os/linux/linux-3.4.x/drivers/regulator/wm831x-isink.c
new file mode 100644
index 0000000..b414e09
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/wm831x-isink.c
@@ -0,0 +1,263 @@
+/*
+ * wm831x-isink.c -- Current sink driver for the WM831x series
+ *
+ * Copyright 2009 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/slab.h>
+
+#include <linux/mfd/wm831x/core.h>
+#include <linux/mfd/wm831x/regulator.h>
+#include <linux/mfd/wm831x/pdata.h>
+
+#define WM831X_ISINK_MAX_NAME 7
+
+struct wm831x_isink {
+ char name[WM831X_ISINK_MAX_NAME];
+ struct regulator_desc desc;
+ int reg;
+ struct wm831x *wm831x;
+ struct regulator_dev *regulator;
+};
+
+static int wm831x_isink_enable(struct regulator_dev *rdev)
+{
+ struct wm831x_isink *isink = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = isink->wm831x;
+ int ret;
+
+ /* We have a two stage enable: first start the ISINK... */
+ ret = wm831x_set_bits(wm831x, isink->reg, WM831X_CS1_ENA,
+ WM831X_CS1_ENA);
+ if (ret != 0)
+ return ret;
+
+ /* ...then enable drive */
+ ret = wm831x_set_bits(wm831x, isink->reg, WM831X_CS1_DRIVE,
+ WM831X_CS1_DRIVE);
+ if (ret != 0)
+ wm831x_set_bits(wm831x, isink->reg, WM831X_CS1_ENA, 0);
+
+ return ret;
+
+}
+
+static int wm831x_isink_disable(struct regulator_dev *rdev)
+{
+ struct wm831x_isink *isink = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = isink->wm831x;
+ int ret;
+
+ ret = wm831x_set_bits(wm831x, isink->reg, WM831X_CS1_DRIVE, 0);
+ if (ret < 0)
+ return ret;
+
+ ret = wm831x_set_bits(wm831x, isink->reg, WM831X_CS1_ENA, 0);
+ if (ret < 0)
+ return ret;
+
+ return ret;
+
+}
+
+static int wm831x_isink_is_enabled(struct regulator_dev *rdev)
+{
+ struct wm831x_isink *isink = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = isink->wm831x;
+ int ret;
+
+ ret = wm831x_reg_read(wm831x, isink->reg);
+ if (ret < 0)
+ return ret;
+
+ if ((ret & (WM831X_CS1_ENA | WM831X_CS1_DRIVE)) ==
+ (WM831X_CS1_ENA | WM831X_CS1_DRIVE))
+ return 1;
+ else
+ return 0;
+}
+
+static int wm831x_isink_set_current(struct regulator_dev *rdev,
+ int min_uA, int max_uA)
+{
+ struct wm831x_isink *isink = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = isink->wm831x;
+ int ret, i;
+
+ for (i = 0; i < ARRAY_SIZE(wm831x_isinkv_values); i++) {
+ int val = wm831x_isinkv_values[i];
+ if (min_uA <= val && val <= max_uA) {
+ ret = wm831x_set_bits(wm831x, isink->reg,
+ WM831X_CS1_ISEL_MASK, i);
+ return ret;
+ }
+ }
+
+ return -EINVAL;
+}
+
+static int wm831x_isink_get_current(struct regulator_dev *rdev)
+{
+ struct wm831x_isink *isink = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = isink->wm831x;
+ int ret;
+
+ ret = wm831x_reg_read(wm831x, isink->reg);
+ if (ret < 0)
+ return ret;
+
+ ret &= WM831X_CS1_ISEL_MASK;
+ if (ret > WM831X_ISINK_MAX_ISEL)
+ ret = WM831X_ISINK_MAX_ISEL;
+
+ return wm831x_isinkv_values[ret];
+}
+
+static struct regulator_ops wm831x_isink_ops = {
+ .is_enabled = wm831x_isink_is_enabled,
+ .enable = wm831x_isink_enable,
+ .disable = wm831x_isink_disable,
+ .set_current_limit = wm831x_isink_set_current,
+ .get_current_limit = wm831x_isink_get_current,
+};
+
+static irqreturn_t wm831x_isink_irq(int irq, void *data)
+{
+ struct wm831x_isink *isink = data;
+
+ regulator_notifier_call_chain(isink->regulator,
+ REGULATOR_EVENT_OVER_CURRENT,
+ NULL);
+
+ return IRQ_HANDLED;
+}
+
+
+static __devinit int wm831x_isink_probe(struct platform_device *pdev)
+{
+ struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
+ struct wm831x_pdata *pdata = wm831x->dev->platform_data;
+ struct wm831x_isink *isink;
+ int id = pdev->id % ARRAY_SIZE(pdata->isink);
+ struct resource *res;
+ int ret, irq;
+
+ dev_dbg(&pdev->dev, "Probing ISINK%d\n", id + 1);
+
+ if (pdata == NULL || pdata->isink[id] == NULL)
+ return -ENODEV;
+
+ isink = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_isink),
+ GFP_KERNEL);
+ if (isink == NULL) {
+ dev_err(&pdev->dev, "Unable to allocate private data\n");
+ return -ENOMEM;
+ }
+
+ isink->wm831x = wm831x;
+
+ res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "No I/O resource\n");
+ ret = -EINVAL;
+ goto err;
+ }
+ isink->reg = res->start;
+
+ /* For current parts this is correct; probably need to revisit
+ * in future.
+ */
+ snprintf(isink->name, sizeof(isink->name), "ISINK%d", id + 1);
+ isink->desc.name = isink->name;
+ isink->desc.id = id;
+ isink->desc.ops = &wm831x_isink_ops;
+ isink->desc.type = REGULATOR_CURRENT;
+ isink->desc.owner = THIS_MODULE;
+
+ isink->regulator = regulator_register(&isink->desc, &pdev->dev,
+ pdata->isink[id], isink, NULL);
+ if (IS_ERR(isink->regulator)) {
+ ret = PTR_ERR(isink->regulator);
+ dev_err(wm831x->dev, "Failed to register ISINK%d: %d\n",
+ id + 1, ret);
+ goto err;
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ ret = request_threaded_irq(irq, NULL, wm831x_isink_irq,
+ IRQF_TRIGGER_RISING, isink->name, isink);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "Failed to request ISINK IRQ %d: %d\n",
+ irq, ret);
+ goto err_regulator;
+ }
+
+ platform_set_drvdata(pdev, isink);
+
+ return 0;
+
+err_regulator:
+ regulator_unregister(isink->regulator);
+err:
+ return ret;
+}
+
+static __devexit int wm831x_isink_remove(struct platform_device *pdev)
+{
+ struct wm831x_isink *isink = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+
+ free_irq(platform_get_irq(pdev, 0), isink);
+
+ regulator_unregister(isink->regulator);
+
+ return 0;
+}
+
+static struct platform_driver wm831x_isink_driver = {
+ .probe = wm831x_isink_probe,
+ .remove = __devexit_p(wm831x_isink_remove),
+ .driver = {
+ .name = "wm831x-isink",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init wm831x_isink_init(void)
+{
+ int ret;
+ ret = platform_driver_register(&wm831x_isink_driver);
+ if (ret != 0)
+ pr_err("Failed to register WM831x ISINK driver: %d\n", ret);
+
+ return ret;
+}
+subsys_initcall(wm831x_isink_init);
+
+static void __exit wm831x_isink_exit(void)
+{
+ platform_driver_unregister(&wm831x_isink_driver);
+}
+module_exit(wm831x_isink_exit);
+
+/* Module information */
+MODULE_AUTHOR("Mark Brown");
+MODULE_DESCRIPTION("WM831x current sink driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:wm831x-isink");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/wm831x-ldo.c b/ap/os/linux/linux-3.4.x/drivers/regulator/wm831x-ldo.c
new file mode 100644
index 0000000..641e9f6
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/wm831x-ldo.c
@@ -0,0 +1,883 @@
+/*
+ * wm831x-ldo.c -- LDO driver for the WM831x series
+ *
+ * Copyright 2009 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/slab.h>
+
+#include <linux/mfd/wm831x/core.h>
+#include <linux/mfd/wm831x/regulator.h>
+#include <linux/mfd/wm831x/pdata.h>
+
+#define WM831X_LDO_MAX_NAME 6
+
+#define WM831X_LDO_CONTROL 0
+#define WM831X_LDO_ON_CONTROL 1
+#define WM831X_LDO_SLEEP_CONTROL 2
+
+#define WM831X_ALIVE_LDO_ON_CONTROL 0
+#define WM831X_ALIVE_LDO_SLEEP_CONTROL 1
+
+struct wm831x_ldo {
+ char name[WM831X_LDO_MAX_NAME];
+ struct regulator_desc desc;
+ int base;
+ struct wm831x *wm831x;
+ struct regulator_dev *regulator;
+};
+
+/*
+ * Shared
+ */
+
+static int wm831x_ldo_is_enabled(struct regulator_dev *rdev)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = ldo->wm831x;
+ int mask = 1 << rdev_get_id(rdev);
+ int reg;
+
+ reg = wm831x_reg_read(wm831x, WM831X_LDO_ENABLE);
+ if (reg < 0)
+ return reg;
+
+ if (reg & mask)
+ return 1;
+ else
+ return 0;
+}
+
+static int wm831x_ldo_enable(struct regulator_dev *rdev)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = ldo->wm831x;
+ int mask = 1 << rdev_get_id(rdev);
+
+ return wm831x_set_bits(wm831x, WM831X_LDO_ENABLE, mask, mask);
+}
+
+static int wm831x_ldo_disable(struct regulator_dev *rdev)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = ldo->wm831x;
+ int mask = 1 << rdev_get_id(rdev);
+
+ return wm831x_set_bits(wm831x, WM831X_LDO_ENABLE, mask, 0);
+}
+
+static irqreturn_t wm831x_ldo_uv_irq(int irq, void *data)
+{
+ struct wm831x_ldo *ldo = data;
+
+ regulator_notifier_call_chain(ldo->regulator,
+ REGULATOR_EVENT_UNDER_VOLTAGE,
+ NULL);
+
+ return IRQ_HANDLED;
+}
+
+/*
+ * General purpose LDOs
+ */
+
+#define WM831X_GP_LDO_SELECTOR_LOW 0xe
+#define WM831X_GP_LDO_MAX_SELECTOR 0x1f
+
+static int wm831x_gp_ldo_list_voltage(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ /* 0.9-1.6V in 50mV steps */
+ if (selector <= WM831X_GP_LDO_SELECTOR_LOW)
+ return 900000 + (selector * 50000);
+ /* 1.7-3.3V in 50mV steps */
+ if (selector <= WM831X_GP_LDO_MAX_SELECTOR)
+ return 1600000 + ((selector - WM831X_GP_LDO_SELECTOR_LOW)
+ * 100000);
+ return -EINVAL;
+}
+
+static int wm831x_gp_ldo_set_voltage_int(struct regulator_dev *rdev, int reg,
+ int min_uV, int max_uV,
+ unsigned *selector)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = ldo->wm831x;
+ int vsel, ret;
+
+ if (min_uV < 900000)
+ vsel = 0;
+ else if (min_uV < 1700000)
+ vsel = ((min_uV - 900000) / 50000);
+ else
+ vsel = ((min_uV - 1700000) / 100000)
+ + WM831X_GP_LDO_SELECTOR_LOW + 1;
+
+ ret = wm831x_gp_ldo_list_voltage(rdev, vsel);
+ if (ret < 0)
+ return ret;
+ if (ret < min_uV || ret > max_uV)
+ return -EINVAL;
+
+ *selector = vsel;
+
+ return wm831x_set_bits(wm831x, reg, WM831X_LDO1_ON_VSEL_MASK, vsel);
+}
+
+static int wm831x_gp_ldo_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV,
+ unsigned *selector)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ int reg = ldo->base + WM831X_LDO_ON_CONTROL;
+
+ return wm831x_gp_ldo_set_voltage_int(rdev, reg, min_uV, max_uV,
+ selector);
+}
+
+static int wm831x_gp_ldo_set_suspend_voltage(struct regulator_dev *rdev,
+ int uV)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ int reg = ldo->base + WM831X_LDO_SLEEP_CONTROL;
+ unsigned int selector;
+
+ return wm831x_gp_ldo_set_voltage_int(rdev, reg, uV, uV, &selector);
+}
+
+static int wm831x_gp_ldo_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = ldo->wm831x;
+ int reg = ldo->base + WM831X_LDO_ON_CONTROL;
+ int ret;
+
+ ret = wm831x_reg_read(wm831x, reg);
+ if (ret < 0)
+ return ret;
+
+ ret &= WM831X_LDO1_ON_VSEL_MASK;
+
+ return ret;
+}
+
+static unsigned int wm831x_gp_ldo_get_mode(struct regulator_dev *rdev)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = ldo->wm831x;
+ int ctrl_reg = ldo->base + WM831X_LDO_CONTROL;
+ int on_reg = ldo->base + WM831X_LDO_ON_CONTROL;
+ int ret;
+
+ ret = wm831x_reg_read(wm831x, on_reg);
+ if (ret < 0)
+ return ret;
+
+ if (!(ret & WM831X_LDO1_ON_MODE))
+ return REGULATOR_MODE_NORMAL;
+
+ ret = wm831x_reg_read(wm831x, ctrl_reg);
+ if (ret < 0)
+ return ret;
+
+ if (ret & WM831X_LDO1_LP_MODE)
+ return REGULATOR_MODE_STANDBY;
+ else
+ return REGULATOR_MODE_IDLE;
+}
+
+static int wm831x_gp_ldo_set_mode(struct regulator_dev *rdev,
+ unsigned int mode)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = ldo->wm831x;
+ int ctrl_reg = ldo->base + WM831X_LDO_CONTROL;
+ int on_reg = ldo->base + WM831X_LDO_ON_CONTROL;
+ int ret;
+
+
+ switch (mode) {
+ case REGULATOR_MODE_NORMAL:
+ ret = wm831x_set_bits(wm831x, on_reg,
+ WM831X_LDO1_ON_MODE, 0);
+ if (ret < 0)
+ return ret;
+ break;
+
+ case REGULATOR_MODE_IDLE:
+ ret = wm831x_set_bits(wm831x, ctrl_reg,
+ WM831X_LDO1_LP_MODE, 0);
+ if (ret < 0)
+ return ret;
+
+ ret = wm831x_set_bits(wm831x, on_reg,
+ WM831X_LDO1_ON_MODE,
+ WM831X_LDO1_ON_MODE);
+ if (ret < 0)
+ return ret;
+ break;
+
+ case REGULATOR_MODE_STANDBY:
+ ret = wm831x_set_bits(wm831x, ctrl_reg,
+ WM831X_LDO1_LP_MODE,
+ WM831X_LDO1_LP_MODE);
+ if (ret < 0)
+ return ret;
+
+ ret = wm831x_set_bits(wm831x, on_reg,
+ WM831X_LDO1_ON_MODE,
+ WM831X_LDO1_ON_MODE);
+ if (ret < 0)
+ return ret;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int wm831x_gp_ldo_get_status(struct regulator_dev *rdev)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = ldo->wm831x;
+ int mask = 1 << rdev_get_id(rdev);
+ int ret;
+
+ /* Is the regulator on? */
+ ret = wm831x_reg_read(wm831x, WM831X_LDO_STATUS);
+ if (ret < 0)
+ return ret;
+ if (!(ret & mask))
+ return REGULATOR_STATUS_OFF;
+
+ /* Is it reporting under voltage? */
+ ret = wm831x_reg_read(wm831x, WM831X_LDO_UV_STATUS);
+ if (ret & mask)
+ return REGULATOR_STATUS_ERROR;
+
+ ret = wm831x_gp_ldo_get_mode(rdev);
+ if (ret < 0)
+ return ret;
+ else
+ return regulator_mode_to_status(ret);
+}
+
+static unsigned int wm831x_gp_ldo_get_optimum_mode(struct regulator_dev *rdev,
+ int input_uV,
+ int output_uV, int load_uA)
+{
+ if (load_uA < 20000)
+ return REGULATOR_MODE_STANDBY;
+ if (load_uA < 50000)
+ return REGULATOR_MODE_IDLE;
+ return REGULATOR_MODE_NORMAL;
+}
+
+
+static struct regulator_ops wm831x_gp_ldo_ops = {
+ .list_voltage = wm831x_gp_ldo_list_voltage,
+ .get_voltage_sel = wm831x_gp_ldo_get_voltage_sel,
+ .set_voltage = wm831x_gp_ldo_set_voltage,
+ .set_suspend_voltage = wm831x_gp_ldo_set_suspend_voltage,
+ .get_mode = wm831x_gp_ldo_get_mode,
+ .set_mode = wm831x_gp_ldo_set_mode,
+ .get_status = wm831x_gp_ldo_get_status,
+ .get_optimum_mode = wm831x_gp_ldo_get_optimum_mode,
+
+ .is_enabled = wm831x_ldo_is_enabled,
+ .enable = wm831x_ldo_enable,
+ .disable = wm831x_ldo_disable,
+};
+
+static __devinit int wm831x_gp_ldo_probe(struct platform_device *pdev)
+{
+ struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
+ struct wm831x_pdata *pdata = wm831x->dev->platform_data;
+ int id;
+ struct wm831x_ldo *ldo;
+ struct resource *res;
+ int ret, irq;
+
+ if (pdata && pdata->wm831x_num)
+ id = (pdata->wm831x_num * 10) + 1;
+ else
+ id = 0;
+ id = pdev->id - id;
+
+ dev_dbg(&pdev->dev, "Probing LDO%d\n", id + 1);
+
+ if (pdata == NULL || pdata->ldo[id] == NULL)
+ return -ENODEV;
+
+ ldo = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_ldo), GFP_KERNEL);
+ if (ldo == NULL) {
+ dev_err(&pdev->dev, "Unable to allocate private data\n");
+ return -ENOMEM;
+ }
+
+ ldo->wm831x = wm831x;
+
+ res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "No I/O resource\n");
+ ret = -EINVAL;
+ goto err;
+ }
+ ldo->base = res->start;
+
+ snprintf(ldo->name, sizeof(ldo->name), "LDO%d", id + 1);
+ ldo->desc.name = ldo->name;
+ ldo->desc.id = id;
+ ldo->desc.type = REGULATOR_VOLTAGE;
+ ldo->desc.n_voltages = WM831X_GP_LDO_MAX_SELECTOR + 1;
+ ldo->desc.ops = &wm831x_gp_ldo_ops;
+ ldo->desc.owner = THIS_MODULE;
+
+ ldo->regulator = regulator_register(&ldo->desc, &pdev->dev,
+ pdata->ldo[id], ldo, NULL);
+ if (IS_ERR(ldo->regulator)) {
+ ret = PTR_ERR(ldo->regulator);
+ dev_err(wm831x->dev, "Failed to register LDO%d: %d\n",
+ id + 1, ret);
+ goto err;
+ }
+
+ irq = platform_get_irq_byname(pdev, "UV");
+ ret = request_threaded_irq(irq, NULL, wm831x_ldo_uv_irq,
+ IRQF_TRIGGER_RISING, ldo->name,
+ ldo);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
+ irq, ret);
+ goto err_regulator;
+ }
+
+ platform_set_drvdata(pdev, ldo);
+
+ return 0;
+
+err_regulator:
+ regulator_unregister(ldo->regulator);
+err:
+ return ret;
+}
+
+static __devexit int wm831x_gp_ldo_remove(struct platform_device *pdev)
+{
+ struct wm831x_ldo *ldo = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+
+ free_irq(platform_get_irq_byname(pdev, "UV"), ldo);
+ regulator_unregister(ldo->regulator);
+
+ return 0;
+}
+
+static struct platform_driver wm831x_gp_ldo_driver = {
+ .probe = wm831x_gp_ldo_probe,
+ .remove = __devexit_p(wm831x_gp_ldo_remove),
+ .driver = {
+ .name = "wm831x-ldo",
+ .owner = THIS_MODULE,
+ },
+};
+
+/*
+ * Analogue LDOs
+ */
+
+
+#define WM831X_ALDO_SELECTOR_LOW 0xc
+#define WM831X_ALDO_MAX_SELECTOR 0x1f
+
+static int wm831x_aldo_list_voltage(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ /* 1-1.6V in 50mV steps */
+ if (selector <= WM831X_ALDO_SELECTOR_LOW)
+ return 1000000 + (selector * 50000);
+ /* 1.7-3.5V in 50mV steps */
+ if (selector <= WM831X_ALDO_MAX_SELECTOR)
+ return 1600000 + ((selector - WM831X_ALDO_SELECTOR_LOW)
+ * 100000);
+ return -EINVAL;
+}
+
+static int wm831x_aldo_set_voltage_int(struct regulator_dev *rdev, int reg,
+ int min_uV, int max_uV,
+ unsigned *selector)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = ldo->wm831x;
+ int vsel, ret;
+
+ if (min_uV < 1000000)
+ vsel = 0;
+ else if (min_uV < 1700000)
+ vsel = ((min_uV - 1000000) / 50000);
+ else
+ vsel = ((min_uV - 1700000) / 100000)
+ + WM831X_ALDO_SELECTOR_LOW + 1;
+
+ ret = wm831x_aldo_list_voltage(rdev, vsel);
+ if (ret < 0)
+ return ret;
+ if (ret < min_uV || ret > max_uV)
+ return -EINVAL;
+
+ *selector = vsel;
+
+ return wm831x_set_bits(wm831x, reg, WM831X_LDO7_ON_VSEL_MASK, vsel);
+}
+
+static int wm831x_aldo_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ int reg = ldo->base + WM831X_LDO_ON_CONTROL;
+
+ return wm831x_aldo_set_voltage_int(rdev, reg, min_uV, max_uV,
+ selector);
+}
+
+static int wm831x_aldo_set_suspend_voltage(struct regulator_dev *rdev,
+ int uV)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ int reg = ldo->base + WM831X_LDO_SLEEP_CONTROL;
+ unsigned int selector;
+
+ return wm831x_aldo_set_voltage_int(rdev, reg, uV, uV, &selector);
+}
+
+static int wm831x_aldo_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = ldo->wm831x;
+ int reg = ldo->base + WM831X_LDO_ON_CONTROL;
+ int ret;
+
+ ret = wm831x_reg_read(wm831x, reg);
+ if (ret < 0)
+ return ret;
+
+ ret &= WM831X_LDO7_ON_VSEL_MASK;
+
+ return ret;
+}
+
+static unsigned int wm831x_aldo_get_mode(struct regulator_dev *rdev)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = ldo->wm831x;
+ int on_reg = ldo->base + WM831X_LDO_ON_CONTROL;
+ int ret;
+
+ ret = wm831x_reg_read(wm831x, on_reg);
+ if (ret < 0)
+ return 0;
+
+ if (ret & WM831X_LDO7_ON_MODE)
+ return REGULATOR_MODE_IDLE;
+ else
+ return REGULATOR_MODE_NORMAL;
+}
+
+static int wm831x_aldo_set_mode(struct regulator_dev *rdev,
+ unsigned int mode)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = ldo->wm831x;
+ int on_reg = ldo->base + WM831X_LDO_ON_CONTROL;
+ int ret;
+
+
+ switch (mode) {
+ case REGULATOR_MODE_NORMAL:
+ ret = wm831x_set_bits(wm831x, on_reg, WM831X_LDO7_ON_MODE, 0);
+ if (ret < 0)
+ return ret;
+ break;
+
+ case REGULATOR_MODE_IDLE:
+ ret = wm831x_set_bits(wm831x, on_reg, WM831X_LDO7_ON_MODE,
+ WM831X_LDO7_ON_MODE);
+ if (ret < 0)
+ return ret;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int wm831x_aldo_get_status(struct regulator_dev *rdev)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = ldo->wm831x;
+ int mask = 1 << rdev_get_id(rdev);
+ int ret;
+
+ /* Is the regulator on? */
+ ret = wm831x_reg_read(wm831x, WM831X_LDO_STATUS);
+ if (ret < 0)
+ return ret;
+ if (!(ret & mask))
+ return REGULATOR_STATUS_OFF;
+
+ /* Is it reporting under voltage? */
+ ret = wm831x_reg_read(wm831x, WM831X_LDO_UV_STATUS);
+ if (ret & mask)
+ return REGULATOR_STATUS_ERROR;
+
+ ret = wm831x_aldo_get_mode(rdev);
+ if (ret < 0)
+ return ret;
+ else
+ return regulator_mode_to_status(ret);
+}
+
+static struct regulator_ops wm831x_aldo_ops = {
+ .list_voltage = wm831x_aldo_list_voltage,
+ .get_voltage_sel = wm831x_aldo_get_voltage_sel,
+ .set_voltage = wm831x_aldo_set_voltage,
+ .set_suspend_voltage = wm831x_aldo_set_suspend_voltage,
+ .get_mode = wm831x_aldo_get_mode,
+ .set_mode = wm831x_aldo_set_mode,
+ .get_status = wm831x_aldo_get_status,
+
+ .is_enabled = wm831x_ldo_is_enabled,
+ .enable = wm831x_ldo_enable,
+ .disable = wm831x_ldo_disable,
+};
+
+static __devinit int wm831x_aldo_probe(struct platform_device *pdev)
+{
+ struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
+ struct wm831x_pdata *pdata = wm831x->dev->platform_data;
+ int id;
+ struct wm831x_ldo *ldo;
+ struct resource *res;
+ int ret, irq;
+
+ if (pdata && pdata->wm831x_num)
+ id = (pdata->wm831x_num * 10) + 1;
+ else
+ id = 0;
+ id = pdev->id - id;
+
+ dev_dbg(&pdev->dev, "Probing LDO%d\n", id + 1);
+
+ if (pdata == NULL || pdata->ldo[id] == NULL)
+ return -ENODEV;
+
+ ldo = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_ldo), GFP_KERNEL);
+ if (ldo == NULL) {
+ dev_err(&pdev->dev, "Unable to allocate private data\n");
+ return -ENOMEM;
+ }
+
+ ldo->wm831x = wm831x;
+
+ res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "No I/O resource\n");
+ ret = -EINVAL;
+ goto err;
+ }
+ ldo->base = res->start;
+
+ snprintf(ldo->name, sizeof(ldo->name), "LDO%d", id + 1);
+ ldo->desc.name = ldo->name;
+ ldo->desc.id = id;
+ ldo->desc.type = REGULATOR_VOLTAGE;
+ ldo->desc.n_voltages = WM831X_ALDO_MAX_SELECTOR + 1;
+ ldo->desc.ops = &wm831x_aldo_ops;
+ ldo->desc.owner = THIS_MODULE;
+
+ ldo->regulator = regulator_register(&ldo->desc, &pdev->dev,
+ pdata->ldo[id], ldo, NULL);
+ if (IS_ERR(ldo->regulator)) {
+ ret = PTR_ERR(ldo->regulator);
+ dev_err(wm831x->dev, "Failed to register LDO%d: %d\n",
+ id + 1, ret);
+ goto err;
+ }
+
+ irq = platform_get_irq_byname(pdev, "UV");
+ ret = request_threaded_irq(irq, NULL, wm831x_ldo_uv_irq,
+ IRQF_TRIGGER_RISING, ldo->name, ldo);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
+ irq, ret);
+ goto err_regulator;
+ }
+
+ platform_set_drvdata(pdev, ldo);
+
+ return 0;
+
+err_regulator:
+ regulator_unregister(ldo->regulator);
+err:
+ return ret;
+}
+
+static __devexit int wm831x_aldo_remove(struct platform_device *pdev)
+{
+ struct wm831x_ldo *ldo = platform_get_drvdata(pdev);
+
+ free_irq(platform_get_irq_byname(pdev, "UV"), ldo);
+ regulator_unregister(ldo->regulator);
+
+ return 0;
+}
+
+static struct platform_driver wm831x_aldo_driver = {
+ .probe = wm831x_aldo_probe,
+ .remove = __devexit_p(wm831x_aldo_remove),
+ .driver = {
+ .name = "wm831x-aldo",
+ .owner = THIS_MODULE,
+ },
+};
+
+/*
+ * Alive LDO
+ */
+
+#define WM831X_ALIVE_LDO_MAX_SELECTOR 0xf
+
+static int wm831x_alive_ldo_list_voltage(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ /* 0.8-1.55V in 50mV steps */
+ if (selector <= WM831X_ALIVE_LDO_MAX_SELECTOR)
+ return 800000 + (selector * 50000);
+ return -EINVAL;
+}
+
+static int wm831x_alive_ldo_set_voltage_int(struct regulator_dev *rdev,
+ int reg,
+ int min_uV, int max_uV,
+ unsigned *selector)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = ldo->wm831x;
+ int vsel, ret;
+
+ vsel = (min_uV - 800000) / 50000;
+
+ ret = wm831x_alive_ldo_list_voltage(rdev, vsel);
+ if (ret < 0)
+ return ret;
+ if (ret < min_uV || ret > max_uV)
+ return -EINVAL;
+
+ *selector = vsel;
+
+ return wm831x_set_bits(wm831x, reg, WM831X_LDO11_ON_VSEL_MASK, vsel);
+}
+
+static int wm831x_alive_ldo_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV,
+ unsigned *selector)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ int reg = ldo->base + WM831X_ALIVE_LDO_ON_CONTROL;
+
+ return wm831x_alive_ldo_set_voltage_int(rdev, reg, min_uV, max_uV,
+ selector);
+}
+
+static int wm831x_alive_ldo_set_suspend_voltage(struct regulator_dev *rdev,
+ int uV)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ int reg = ldo->base + WM831X_ALIVE_LDO_SLEEP_CONTROL;
+ unsigned selector;
+
+ return wm831x_alive_ldo_set_voltage_int(rdev, reg, uV, uV, &selector);
+}
+
+static int wm831x_alive_ldo_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = ldo->wm831x;
+ int reg = ldo->base + WM831X_ALIVE_LDO_ON_CONTROL;
+ int ret;
+
+ ret = wm831x_reg_read(wm831x, reg);
+ if (ret < 0)
+ return ret;
+
+ ret &= WM831X_LDO11_ON_VSEL_MASK;
+
+ return ret;
+}
+
+static int wm831x_alive_ldo_get_status(struct regulator_dev *rdev)
+{
+ struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
+ struct wm831x *wm831x = ldo->wm831x;
+ int mask = 1 << rdev_get_id(rdev);
+ int ret;
+
+ /* Is the regulator on? */
+ ret = wm831x_reg_read(wm831x, WM831X_LDO_STATUS);
+ if (ret < 0)
+ return ret;
+ if (ret & mask)
+ return REGULATOR_STATUS_ON;
+ else
+ return REGULATOR_STATUS_OFF;
+}
+
+static struct regulator_ops wm831x_alive_ldo_ops = {
+ .list_voltage = wm831x_alive_ldo_list_voltage,
+ .get_voltage_sel = wm831x_alive_ldo_get_voltage_sel,
+ .set_voltage = wm831x_alive_ldo_set_voltage,
+ .set_suspend_voltage = wm831x_alive_ldo_set_suspend_voltage,
+ .get_status = wm831x_alive_ldo_get_status,
+
+ .is_enabled = wm831x_ldo_is_enabled,
+ .enable = wm831x_ldo_enable,
+ .disable = wm831x_ldo_disable,
+};
+
+static __devinit int wm831x_alive_ldo_probe(struct platform_device *pdev)
+{
+ struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
+ struct wm831x_pdata *pdata = wm831x->dev->platform_data;
+ int id;
+ struct wm831x_ldo *ldo;
+ struct resource *res;
+ int ret;
+
+ if (pdata && pdata->wm831x_num)
+ id = (pdata->wm831x_num * 10) + 1;
+ else
+ id = 0;
+ id = pdev->id - id;
+
+
+ dev_dbg(&pdev->dev, "Probing LDO%d\n", id + 1);
+
+ if (pdata == NULL || pdata->ldo[id] == NULL)
+ return -ENODEV;
+
+ ldo = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_ldo), GFP_KERNEL);
+ if (ldo == NULL) {
+ dev_err(&pdev->dev, "Unable to allocate private data\n");
+ return -ENOMEM;
+ }
+
+ ldo->wm831x = wm831x;
+
+ res = platform_get_resource(pdev, IORESOURCE_IO, 0);
+ if (res == NULL) {
+ dev_err(&pdev->dev, "No I/O resource\n");
+ ret = -EINVAL;
+ goto err;
+ }
+ ldo->base = res->start;
+
+ snprintf(ldo->name, sizeof(ldo->name), "LDO%d", id + 1);
+ ldo->desc.name = ldo->name;
+ ldo->desc.id = id;
+ ldo->desc.type = REGULATOR_VOLTAGE;
+ ldo->desc.n_voltages = WM831X_ALIVE_LDO_MAX_SELECTOR + 1;
+ ldo->desc.ops = &wm831x_alive_ldo_ops;
+ ldo->desc.owner = THIS_MODULE;
+
+ ldo->regulator = regulator_register(&ldo->desc, &pdev->dev,
+ pdata->ldo[id], ldo, NULL);
+ if (IS_ERR(ldo->regulator)) {
+ ret = PTR_ERR(ldo->regulator);
+ dev_err(wm831x->dev, "Failed to register LDO%d: %d\n",
+ id + 1, ret);
+ goto err;
+ }
+
+ platform_set_drvdata(pdev, ldo);
+
+ return 0;
+
+err:
+ return ret;
+}
+
+static __devexit int wm831x_alive_ldo_remove(struct platform_device *pdev)
+{
+ struct wm831x_ldo *ldo = platform_get_drvdata(pdev);
+
+ regulator_unregister(ldo->regulator);
+
+ return 0;
+}
+
+static struct platform_driver wm831x_alive_ldo_driver = {
+ .probe = wm831x_alive_ldo_probe,
+ .remove = __devexit_p(wm831x_alive_ldo_remove),
+ .driver = {
+ .name = "wm831x-alive-ldo",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init wm831x_ldo_init(void)
+{
+ int ret;
+
+ ret = platform_driver_register(&wm831x_gp_ldo_driver);
+ if (ret != 0)
+ pr_err("Failed to register WM831x GP LDO driver: %d\n", ret);
+
+ ret = platform_driver_register(&wm831x_aldo_driver);
+ if (ret != 0)
+ pr_err("Failed to register WM831x ALDO driver: %d\n", ret);
+
+ ret = platform_driver_register(&wm831x_alive_ldo_driver);
+ if (ret != 0)
+ pr_err("Failed to register WM831x alive LDO driver: %d\n",
+ ret);
+
+ return 0;
+}
+subsys_initcall(wm831x_ldo_init);
+
+static void __exit wm831x_ldo_exit(void)
+{
+ platform_driver_unregister(&wm831x_alive_ldo_driver);
+ platform_driver_unregister(&wm831x_aldo_driver);
+ platform_driver_unregister(&wm831x_gp_ldo_driver);
+}
+module_exit(wm831x_ldo_exit);
+
+/* Module information */
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("WM831x LDO driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:wm831x-ldo");
+MODULE_ALIAS("platform:wm831x-aldo");
+MODULE_ALIAS("platform:wm831x-aliveldo");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/wm8350-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/wm8350-regulator.c
new file mode 100644
index 0000000..05ecfb8
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/wm8350-regulator.c
@@ -0,0 +1,1623 @@
+/*
+ * wm8350.c -- Voltage and current regulation for the Wolfson WM8350 PMIC
+ *
+ * Copyright 2007, 2008 Wolfson Microelectronics PLC.
+ *
+ * Author: Liam Girdwood
+ * linux@wolfsonmicro.com
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/mfd/wm8350/core.h>
+#include <linux/mfd/wm8350/pmic.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+
+/* Maximum value possible for VSEL */
+#define WM8350_DCDC_MAX_VSEL 0x66
+
+/* Microamps */
+static const int isink_cur[] = {
+ 4,
+ 5,
+ 6,
+ 7,
+ 8,
+ 10,
+ 11,
+ 14,
+ 16,
+ 19,
+ 23,
+ 27,
+ 32,
+ 39,
+ 46,
+ 54,
+ 65,
+ 77,
+ 92,
+ 109,
+ 130,
+ 154,
+ 183,
+ 218,
+ 259,
+ 308,
+ 367,
+ 436,
+ 518,
+ 616,
+ 733,
+ 872,
+ 1037,
+ 1233,
+ 1466,
+ 1744,
+ 2073,
+ 2466,
+ 2933,
+ 3487,
+ 4147,
+ 4932,
+ 5865,
+ 6975,
+ 8294,
+ 9864,
+ 11730,
+ 13949,
+ 16589,
+ 19728,
+ 23460,
+ 27899,
+ 33178,
+ 39455,
+ 46920,
+ 55798,
+ 66355,
+ 78910,
+ 93840,
+ 111596,
+ 132710,
+ 157820,
+ 187681,
+ 223191
+};
+
+static int get_isink_val(int min_uA, int max_uA, u16 *setting)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(isink_cur); i++) {
+ if (min_uA <= isink_cur[i] && max_uA >= isink_cur[i]) {
+ *setting = i;
+ return 0;
+ }
+ }
+ return -EINVAL;
+}
+
+static inline int wm8350_ldo_val_to_mvolts(unsigned int val)
+{
+ if (val < 16)
+ return (val * 50) + 900;
+ else
+ return ((val - 16) * 100) + 1800;
+
+}
+
+static inline unsigned int wm8350_ldo_mvolts_to_val(int mV)
+{
+ if (mV < 1800)
+ return (mV - 900) / 50;
+ else
+ return ((mV - 1800) / 100) + 16;
+}
+
+static inline int wm8350_dcdc_val_to_mvolts(unsigned int val)
+{
+ return (val * 25) + 850;
+}
+
+static inline unsigned int wm8350_dcdc_mvolts_to_val(int mV)
+{
+ return (mV - 850) / 25;
+}
+
+static int wm8350_isink_set_current(struct regulator_dev *rdev, int min_uA,
+ int max_uA)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int isink = rdev_get_id(rdev);
+ u16 val, setting;
+ int ret;
+
+ ret = get_isink_val(min_uA, max_uA, &setting);
+ if (ret != 0)
+ return ret;
+
+ switch (isink) {
+ case WM8350_ISINK_A:
+ val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_A) &
+ ~WM8350_CS1_ISEL_MASK;
+ wm8350_reg_write(wm8350, WM8350_CURRENT_SINK_DRIVER_A,
+ val | setting);
+ break;
+ case WM8350_ISINK_B:
+ val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_B) &
+ ~WM8350_CS1_ISEL_MASK;
+ wm8350_reg_write(wm8350, WM8350_CURRENT_SINK_DRIVER_B,
+ val | setting);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int wm8350_isink_get_current(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int isink = rdev_get_id(rdev);
+ u16 val;
+
+ switch (isink) {
+ case WM8350_ISINK_A:
+ val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_A) &
+ WM8350_CS1_ISEL_MASK;
+ break;
+ case WM8350_ISINK_B:
+ val = wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_B) &
+ WM8350_CS1_ISEL_MASK;
+ break;
+ default:
+ return 0;
+ }
+
+ return isink_cur[val];
+}
+
+/* turn on ISINK followed by DCDC */
+static int wm8350_isink_enable(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int isink = rdev_get_id(rdev);
+
+ switch (isink) {
+ case WM8350_ISINK_A:
+ switch (wm8350->pmic.isink_A_dcdc) {
+ case WM8350_DCDC_2:
+ case WM8350_DCDC_5:
+ wm8350_set_bits(wm8350, WM8350_POWER_MGMT_7,
+ WM8350_CS1_ENA);
+ wm8350_set_bits(wm8350, WM8350_CSA_FLASH_CONTROL,
+ WM8350_CS1_DRIVE);
+ wm8350_set_bits(wm8350, WM8350_DCDC_LDO_REQUESTED,
+ 1 << (wm8350->pmic.isink_A_dcdc -
+ WM8350_DCDC_1));
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ case WM8350_ISINK_B:
+ switch (wm8350->pmic.isink_B_dcdc) {
+ case WM8350_DCDC_2:
+ case WM8350_DCDC_5:
+ wm8350_set_bits(wm8350, WM8350_POWER_MGMT_7,
+ WM8350_CS2_ENA);
+ wm8350_set_bits(wm8350, WM8350_CSB_FLASH_CONTROL,
+ WM8350_CS2_DRIVE);
+ wm8350_set_bits(wm8350, WM8350_DCDC_LDO_REQUESTED,
+ 1 << (wm8350->pmic.isink_B_dcdc -
+ WM8350_DCDC_1));
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int wm8350_isink_disable(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int isink = rdev_get_id(rdev);
+
+ switch (isink) {
+ case WM8350_ISINK_A:
+ switch (wm8350->pmic.isink_A_dcdc) {
+ case WM8350_DCDC_2:
+ case WM8350_DCDC_5:
+ wm8350_clear_bits(wm8350, WM8350_DCDC_LDO_REQUESTED,
+ 1 << (wm8350->pmic.isink_A_dcdc -
+ WM8350_DCDC_1));
+ wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_7,
+ WM8350_CS1_ENA);
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ case WM8350_ISINK_B:
+ switch (wm8350->pmic.isink_B_dcdc) {
+ case WM8350_DCDC_2:
+ case WM8350_DCDC_5:
+ wm8350_clear_bits(wm8350, WM8350_DCDC_LDO_REQUESTED,
+ 1 << (wm8350->pmic.isink_B_dcdc -
+ WM8350_DCDC_1));
+ wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_7,
+ WM8350_CS2_ENA);
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int wm8350_isink_is_enabled(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int isink = rdev_get_id(rdev);
+
+ switch (isink) {
+ case WM8350_ISINK_A:
+ return wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_A) &
+ 0x8000;
+ case WM8350_ISINK_B:
+ return wm8350_reg_read(wm8350, WM8350_CURRENT_SINK_DRIVER_B) &
+ 0x8000;
+ }
+ return -EINVAL;
+}
+
+static int wm8350_isink_enable_time(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int isink = rdev_get_id(rdev);
+ int reg;
+
+ switch (isink) {
+ case WM8350_ISINK_A:
+ reg = wm8350_reg_read(wm8350, WM8350_CSA_FLASH_CONTROL);
+ break;
+ case WM8350_ISINK_B:
+ reg = wm8350_reg_read(wm8350, WM8350_CSB_FLASH_CONTROL);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (reg & WM8350_CS1_FLASH_MODE) {
+ switch (reg & WM8350_CS1_ON_RAMP_MASK) {
+ case 0:
+ return 0;
+ case 1:
+ return 1950;
+ case 2:
+ return 3910;
+ case 3:
+ return 7800;
+ }
+ } else {
+ switch (reg & WM8350_CS1_ON_RAMP_MASK) {
+ case 0:
+ return 0;
+ case 1:
+ return 250000;
+ case 2:
+ return 500000;
+ case 3:
+ return 1000000;
+ }
+ }
+
+ return -EINVAL;
+}
+
+
+int wm8350_isink_set_flash(struct wm8350 *wm8350, int isink, u16 mode,
+ u16 trigger, u16 duration, u16 on_ramp, u16 off_ramp,
+ u16 drive)
+{
+ switch (isink) {
+ case WM8350_ISINK_A:
+ wm8350_reg_write(wm8350, WM8350_CSA_FLASH_CONTROL,
+ (mode ? WM8350_CS1_FLASH_MODE : 0) |
+ (trigger ? WM8350_CS1_TRIGSRC : 0) |
+ duration | on_ramp | off_ramp | drive);
+ break;
+ case WM8350_ISINK_B:
+ wm8350_reg_write(wm8350, WM8350_CSB_FLASH_CONTROL,
+ (mode ? WM8350_CS2_FLASH_MODE : 0) |
+ (trigger ? WM8350_CS2_TRIGSRC : 0) |
+ duration | on_ramp | off_ramp | drive);
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+EXPORT_SYMBOL_GPL(wm8350_isink_set_flash);
+
+static int wm8350_dcdc_set_voltage(struct regulator_dev *rdev, int min_uV,
+ int max_uV, unsigned *selector)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int volt_reg, dcdc = rdev_get_id(rdev), mV,
+ min_mV = min_uV / 1000, max_mV = max_uV / 1000;
+ u16 val;
+
+ if (min_mV < 850 || min_mV > 4025)
+ return -EINVAL;
+ if (max_mV < 850 || max_mV > 4025)
+ return -EINVAL;
+
+ /* step size is 25mV */
+ mV = (min_mV - 826) / 25;
+ if (wm8350_dcdc_val_to_mvolts(mV) > max_mV)
+ return -EINVAL;
+ BUG_ON(wm8350_dcdc_val_to_mvolts(mV) < min_mV);
+
+ switch (dcdc) {
+ case WM8350_DCDC_1:
+ volt_reg = WM8350_DCDC1_CONTROL;
+ break;
+ case WM8350_DCDC_3:
+ volt_reg = WM8350_DCDC3_CONTROL;
+ break;
+ case WM8350_DCDC_4:
+ volt_reg = WM8350_DCDC4_CONTROL;
+ break;
+ case WM8350_DCDC_6:
+ volt_reg = WM8350_DCDC6_CONTROL;
+ break;
+ case WM8350_DCDC_2:
+ case WM8350_DCDC_5:
+ default:
+ return -EINVAL;
+ }
+
+ *selector = mV;
+
+ /* all DCDCs have same mV bits */
+ val = wm8350_reg_read(wm8350, volt_reg) & ~WM8350_DC1_VSEL_MASK;
+ wm8350_reg_write(wm8350, volt_reg, val | mV);
+ return 0;
+}
+
+static int wm8350_dcdc_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int volt_reg, dcdc = rdev_get_id(rdev);
+
+ switch (dcdc) {
+ case WM8350_DCDC_1:
+ volt_reg = WM8350_DCDC1_CONTROL;
+ break;
+ case WM8350_DCDC_3:
+ volt_reg = WM8350_DCDC3_CONTROL;
+ break;
+ case WM8350_DCDC_4:
+ volt_reg = WM8350_DCDC4_CONTROL;
+ break;
+ case WM8350_DCDC_6:
+ volt_reg = WM8350_DCDC6_CONTROL;
+ break;
+ case WM8350_DCDC_2:
+ case WM8350_DCDC_5:
+ default:
+ return -EINVAL;
+ }
+
+ /* all DCDCs have same mV bits */
+ return wm8350_reg_read(wm8350, volt_reg) & WM8350_DC1_VSEL_MASK;
+}
+
+static int wm8350_dcdc_list_voltage(struct regulator_dev *rdev,
+ unsigned selector)
+{
+ if (selector > WM8350_DCDC_MAX_VSEL)
+ return -EINVAL;
+ return wm8350_dcdc_val_to_mvolts(selector) * 1000;
+}
+
+static int wm8350_dcdc_set_suspend_voltage(struct regulator_dev *rdev, int uV)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int volt_reg, mV = uV / 1000, dcdc = rdev_get_id(rdev);
+ u16 val;
+
+ dev_dbg(wm8350->dev, "%s %d mV %d\n", __func__, dcdc, mV);
+
+ if (mV && (mV < 850 || mV > 4025)) {
+ dev_err(wm8350->dev,
+ "DCDC%d suspend voltage %d mV out of range\n",
+ dcdc, mV);
+ return -EINVAL;
+ }
+ if (mV == 0)
+ mV = 850;
+
+ switch (dcdc) {
+ case WM8350_DCDC_1:
+ volt_reg = WM8350_DCDC1_LOW_POWER;
+ break;
+ case WM8350_DCDC_3:
+ volt_reg = WM8350_DCDC3_LOW_POWER;
+ break;
+ case WM8350_DCDC_4:
+ volt_reg = WM8350_DCDC4_LOW_POWER;
+ break;
+ case WM8350_DCDC_6:
+ volt_reg = WM8350_DCDC6_LOW_POWER;
+ break;
+ case WM8350_DCDC_2:
+ case WM8350_DCDC_5:
+ default:
+ return -EINVAL;
+ }
+
+ /* all DCDCs have same mV bits */
+ val = wm8350_reg_read(wm8350, volt_reg) & ~WM8350_DC1_VSEL_MASK;
+ wm8350_reg_write(wm8350, volt_reg,
+ val | wm8350_dcdc_mvolts_to_val(mV));
+ return 0;
+}
+
+static int wm8350_dcdc_set_suspend_enable(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int dcdc = rdev_get_id(rdev);
+ u16 val;
+
+ switch (dcdc) {
+ case WM8350_DCDC_1:
+ val = wm8350_reg_read(wm8350, WM8350_DCDC1_LOW_POWER)
+ & ~WM8350_DCDC_HIB_MODE_MASK;
+ wm8350_reg_write(wm8350, WM8350_DCDC1_LOW_POWER,
+ val | wm8350->pmic.dcdc1_hib_mode);
+ break;
+ case WM8350_DCDC_3:
+ val = wm8350_reg_read(wm8350, WM8350_DCDC3_LOW_POWER)
+ & ~WM8350_DCDC_HIB_MODE_MASK;
+ wm8350_reg_write(wm8350, WM8350_DCDC3_LOW_POWER,
+ val | wm8350->pmic.dcdc3_hib_mode);
+ break;
+ case WM8350_DCDC_4:
+ val = wm8350_reg_read(wm8350, WM8350_DCDC4_LOW_POWER)
+ & ~WM8350_DCDC_HIB_MODE_MASK;
+ wm8350_reg_write(wm8350, WM8350_DCDC4_LOW_POWER,
+ val | wm8350->pmic.dcdc4_hib_mode);
+ break;
+ case WM8350_DCDC_6:
+ val = wm8350_reg_read(wm8350, WM8350_DCDC6_LOW_POWER)
+ & ~WM8350_DCDC_HIB_MODE_MASK;
+ wm8350_reg_write(wm8350, WM8350_DCDC6_LOW_POWER,
+ val | wm8350->pmic.dcdc6_hib_mode);
+ break;
+ case WM8350_DCDC_2:
+ case WM8350_DCDC_5:
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int wm8350_dcdc_set_suspend_disable(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int dcdc = rdev_get_id(rdev);
+ u16 val;
+
+ switch (dcdc) {
+ case WM8350_DCDC_1:
+ val = wm8350_reg_read(wm8350, WM8350_DCDC1_LOW_POWER);
+ wm8350->pmic.dcdc1_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK;
+ wm8350_reg_write(wm8350, WM8350_DCDC1_LOW_POWER,
+ val | WM8350_DCDC_HIB_MODE_DIS);
+ break;
+ case WM8350_DCDC_3:
+ val = wm8350_reg_read(wm8350, WM8350_DCDC3_LOW_POWER);
+ wm8350->pmic.dcdc3_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK;
+ wm8350_reg_write(wm8350, WM8350_DCDC3_LOW_POWER,
+ val | WM8350_DCDC_HIB_MODE_DIS);
+ break;
+ case WM8350_DCDC_4:
+ val = wm8350_reg_read(wm8350, WM8350_DCDC4_LOW_POWER);
+ wm8350->pmic.dcdc4_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK;
+ wm8350_reg_write(wm8350, WM8350_DCDC4_LOW_POWER,
+ val | WM8350_DCDC_HIB_MODE_DIS);
+ break;
+ case WM8350_DCDC_6:
+ val = wm8350_reg_read(wm8350, WM8350_DCDC6_LOW_POWER);
+ wm8350->pmic.dcdc6_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK;
+ wm8350_reg_write(wm8350, WM8350_DCDC6_LOW_POWER,
+ val | WM8350_DCDC_HIB_MODE_DIS);
+ break;
+ case WM8350_DCDC_2:
+ case WM8350_DCDC_5:
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int wm8350_dcdc25_set_suspend_enable(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int dcdc = rdev_get_id(rdev);
+ u16 val;
+
+ switch (dcdc) {
+ case WM8350_DCDC_2:
+ val = wm8350_reg_read(wm8350, WM8350_DCDC2_CONTROL)
+ & ~WM8350_DC2_HIB_MODE_MASK;
+ wm8350_reg_write(wm8350, WM8350_DCDC2_CONTROL, val |
+ (WM8350_DC2_HIB_MODE_ACTIVE << WM8350_DC2_HIB_MODE_SHIFT));
+ break;
+ case WM8350_DCDC_5:
+ val = wm8350_reg_read(wm8350, WM8350_DCDC5_CONTROL)
+ & ~WM8350_DC5_HIB_MODE_MASK;
+ wm8350_reg_write(wm8350, WM8350_DCDC5_CONTROL, val |
+ (WM8350_DC5_HIB_MODE_ACTIVE << WM8350_DC5_HIB_MODE_SHIFT));
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int wm8350_dcdc25_set_suspend_disable(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int dcdc = rdev_get_id(rdev);
+ u16 val;
+
+ switch (dcdc) {
+ case WM8350_DCDC_2:
+ val = wm8350_reg_read(wm8350, WM8350_DCDC2_CONTROL)
+ & ~WM8350_DC2_HIB_MODE_MASK;
+ wm8350_reg_write(wm8350, WM8350_DCDC2_CONTROL, val |
+ (WM8350_DC2_HIB_MODE_DISABLE << WM8350_DC2_HIB_MODE_SHIFT));
+ break;
+ case WM8350_DCDC_5:
+ val = wm8350_reg_read(wm8350, WM8350_DCDC5_CONTROL)
+ & ~WM8350_DC5_HIB_MODE_MASK;
+ wm8350_reg_write(wm8350, WM8350_DCDC5_CONTROL, val |
+ (WM8350_DC5_HIB_MODE_DISABLE << WM8350_DC5_HIB_MODE_SHIFT));
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int wm8350_dcdc_set_suspend_mode(struct regulator_dev *rdev,
+ unsigned int mode)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int dcdc = rdev_get_id(rdev);
+ u16 *hib_mode;
+
+ switch (dcdc) {
+ case WM8350_DCDC_1:
+ hib_mode = &wm8350->pmic.dcdc1_hib_mode;
+ break;
+ case WM8350_DCDC_3:
+ hib_mode = &wm8350->pmic.dcdc3_hib_mode;
+ break;
+ case WM8350_DCDC_4:
+ hib_mode = &wm8350->pmic.dcdc4_hib_mode;
+ break;
+ case WM8350_DCDC_6:
+ hib_mode = &wm8350->pmic.dcdc6_hib_mode;
+ break;
+ case WM8350_DCDC_2:
+ case WM8350_DCDC_5:
+ default:
+ return -EINVAL;
+ }
+
+ switch (mode) {
+ case REGULATOR_MODE_NORMAL:
+ *hib_mode = WM8350_DCDC_HIB_MODE_IMAGE;
+ break;
+ case REGULATOR_MODE_IDLE:
+ *hib_mode = WM8350_DCDC_HIB_MODE_STANDBY;
+ break;
+ case REGULATOR_MODE_STANDBY:
+ *hib_mode = WM8350_DCDC_HIB_MODE_LDO_IM;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int wm8350_ldo_set_suspend_voltage(struct regulator_dev *rdev, int uV)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int volt_reg, mV = uV / 1000, ldo = rdev_get_id(rdev);
+ u16 val;
+
+ dev_dbg(wm8350->dev, "%s %d mV %d\n", __func__, ldo, mV);
+
+ if (mV < 900 || mV > 3300) {
+ dev_err(wm8350->dev, "LDO%d voltage %d mV out of range\n",
+ ldo, mV);
+ return -EINVAL;
+ }
+
+ switch (ldo) {
+ case WM8350_LDO_1:
+ volt_reg = WM8350_LDO1_LOW_POWER;
+ break;
+ case WM8350_LDO_2:
+ volt_reg = WM8350_LDO2_LOW_POWER;
+ break;
+ case WM8350_LDO_3:
+ volt_reg = WM8350_LDO3_LOW_POWER;
+ break;
+ case WM8350_LDO_4:
+ volt_reg = WM8350_LDO4_LOW_POWER;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* all LDOs have same mV bits */
+ val = wm8350_reg_read(wm8350, volt_reg) & ~WM8350_LDO1_VSEL_MASK;
+ wm8350_reg_write(wm8350, volt_reg,
+ val | wm8350_ldo_mvolts_to_val(mV));
+ return 0;
+}
+
+static int wm8350_ldo_set_suspend_enable(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int volt_reg, ldo = rdev_get_id(rdev);
+ u16 val;
+
+ switch (ldo) {
+ case WM8350_LDO_1:
+ volt_reg = WM8350_LDO1_LOW_POWER;
+ break;
+ case WM8350_LDO_2:
+ volt_reg = WM8350_LDO2_LOW_POWER;
+ break;
+ case WM8350_LDO_3:
+ volt_reg = WM8350_LDO3_LOW_POWER;
+ break;
+ case WM8350_LDO_4:
+ volt_reg = WM8350_LDO4_LOW_POWER;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* all LDOs have same mV bits */
+ val = wm8350_reg_read(wm8350, volt_reg) & ~WM8350_LDO1_HIB_MODE_MASK;
+ wm8350_reg_write(wm8350, volt_reg, val);
+ return 0;
+}
+
+static int wm8350_ldo_set_suspend_disable(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int volt_reg, ldo = rdev_get_id(rdev);
+ u16 val;
+
+ switch (ldo) {
+ case WM8350_LDO_1:
+ volt_reg = WM8350_LDO1_LOW_POWER;
+ break;
+ case WM8350_LDO_2:
+ volt_reg = WM8350_LDO2_LOW_POWER;
+ break;
+ case WM8350_LDO_3:
+ volt_reg = WM8350_LDO3_LOW_POWER;
+ break;
+ case WM8350_LDO_4:
+ volt_reg = WM8350_LDO4_LOW_POWER;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* all LDOs have same mV bits */
+ val = wm8350_reg_read(wm8350, volt_reg) & ~WM8350_LDO1_HIB_MODE_MASK;
+ wm8350_reg_write(wm8350, volt_reg, val | WM8350_LDO1_HIB_MODE_DIS);
+ return 0;
+}
+
+static int wm8350_ldo_set_voltage(struct regulator_dev *rdev, int min_uV,
+ int max_uV, unsigned *selector)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int volt_reg, ldo = rdev_get_id(rdev), mV, min_mV = min_uV / 1000,
+ max_mV = max_uV / 1000;
+ u16 val;
+
+ if (min_mV < 900 || min_mV > 3300)
+ return -EINVAL;
+ if (max_mV < 900 || max_mV > 3300)
+ return -EINVAL;
+
+ if (min_mV < 1800) {
+ /* step size is 50mV < 1800mV */
+ mV = (min_mV - 851) / 50;
+ if (wm8350_ldo_val_to_mvolts(mV) > max_mV)
+ return -EINVAL;
+ BUG_ON(wm8350_ldo_val_to_mvolts(mV) < min_mV);
+ } else {
+ /* step size is 100mV > 1800mV */
+ mV = ((min_mV - 1701) / 100) + 16;
+ if (wm8350_ldo_val_to_mvolts(mV) > max_mV)
+ return -EINVAL;
+ BUG_ON(wm8350_ldo_val_to_mvolts(mV) < min_mV);
+ }
+
+ switch (ldo) {
+ case WM8350_LDO_1:
+ volt_reg = WM8350_LDO1_CONTROL;
+ break;
+ case WM8350_LDO_2:
+ volt_reg = WM8350_LDO2_CONTROL;
+ break;
+ case WM8350_LDO_3:
+ volt_reg = WM8350_LDO3_CONTROL;
+ break;
+ case WM8350_LDO_4:
+ volt_reg = WM8350_LDO4_CONTROL;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ *selector = mV;
+
+ /* all LDOs have same mV bits */
+ val = wm8350_reg_read(wm8350, volt_reg) & ~WM8350_LDO1_VSEL_MASK;
+ wm8350_reg_write(wm8350, volt_reg, val | mV);
+ return 0;
+}
+
+static int wm8350_ldo_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int volt_reg, ldo = rdev_get_id(rdev);
+
+ switch (ldo) {
+ case WM8350_LDO_1:
+ volt_reg = WM8350_LDO1_CONTROL;
+ break;
+ case WM8350_LDO_2:
+ volt_reg = WM8350_LDO2_CONTROL;
+ break;
+ case WM8350_LDO_3:
+ volt_reg = WM8350_LDO3_CONTROL;
+ break;
+ case WM8350_LDO_4:
+ volt_reg = WM8350_LDO4_CONTROL;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* all LDOs have same mV bits */
+ return wm8350_reg_read(wm8350, volt_reg) & WM8350_LDO1_VSEL_MASK;
+}
+
+static int wm8350_ldo_list_voltage(struct regulator_dev *rdev,
+ unsigned selector)
+{
+ if (selector > WM8350_LDO1_VSEL_MASK)
+ return -EINVAL;
+ return wm8350_ldo_val_to_mvolts(selector) * 1000;
+}
+
+int wm8350_dcdc_set_slot(struct wm8350 *wm8350, int dcdc, u16 start,
+ u16 stop, u16 fault)
+{
+ int slot_reg;
+ u16 val;
+
+ dev_dbg(wm8350->dev, "%s %d start %d stop %d\n",
+ __func__, dcdc, start, stop);
+
+ /* slot valid ? */
+ if (start > 15 || stop > 15)
+ return -EINVAL;
+
+ switch (dcdc) {
+ case WM8350_DCDC_1:
+ slot_reg = WM8350_DCDC1_TIMEOUTS;
+ break;
+ case WM8350_DCDC_2:
+ slot_reg = WM8350_DCDC2_TIMEOUTS;
+ break;
+ case WM8350_DCDC_3:
+ slot_reg = WM8350_DCDC3_TIMEOUTS;
+ break;
+ case WM8350_DCDC_4:
+ slot_reg = WM8350_DCDC4_TIMEOUTS;
+ break;
+ case WM8350_DCDC_5:
+ slot_reg = WM8350_DCDC5_TIMEOUTS;
+ break;
+ case WM8350_DCDC_6:
+ slot_reg = WM8350_DCDC6_TIMEOUTS;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ val = wm8350_reg_read(wm8350, slot_reg) &
+ ~(WM8350_DC1_ENSLOT_MASK | WM8350_DC1_SDSLOT_MASK |
+ WM8350_DC1_ERRACT_MASK);
+ wm8350_reg_write(wm8350, slot_reg,
+ val | (start << WM8350_DC1_ENSLOT_SHIFT) |
+ (stop << WM8350_DC1_SDSLOT_SHIFT) |
+ (fault << WM8350_DC1_ERRACT_SHIFT));
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(wm8350_dcdc_set_slot);
+
+int wm8350_ldo_set_slot(struct wm8350 *wm8350, int ldo, u16 start, u16 stop)
+{
+ int slot_reg;
+ u16 val;
+
+ dev_dbg(wm8350->dev, "%s %d start %d stop %d\n",
+ __func__, ldo, start, stop);
+
+ /* slot valid ? */
+ if (start > 15 || stop > 15)
+ return -EINVAL;
+
+ switch (ldo) {
+ case WM8350_LDO_1:
+ slot_reg = WM8350_LDO1_TIMEOUTS;
+ break;
+ case WM8350_LDO_2:
+ slot_reg = WM8350_LDO2_TIMEOUTS;
+ break;
+ case WM8350_LDO_3:
+ slot_reg = WM8350_LDO3_TIMEOUTS;
+ break;
+ case WM8350_LDO_4:
+ slot_reg = WM8350_LDO4_TIMEOUTS;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ val = wm8350_reg_read(wm8350, slot_reg) & ~WM8350_LDO1_SDSLOT_MASK;
+ wm8350_reg_write(wm8350, slot_reg, val | ((start << 10) | (stop << 6)));
+ return 0;
+}
+EXPORT_SYMBOL_GPL(wm8350_ldo_set_slot);
+
+int wm8350_dcdc25_set_mode(struct wm8350 *wm8350, int dcdc, u16 mode,
+ u16 ilim, u16 ramp, u16 feedback)
+{
+ u16 val;
+
+ dev_dbg(wm8350->dev, "%s %d mode: %s %s\n", __func__, dcdc,
+ mode ? "normal" : "boost", ilim ? "low" : "normal");
+
+ switch (dcdc) {
+ case WM8350_DCDC_2:
+ val = wm8350_reg_read(wm8350, WM8350_DCDC2_CONTROL)
+ & ~(WM8350_DC2_MODE_MASK | WM8350_DC2_ILIM_MASK |
+ WM8350_DC2_RMP_MASK | WM8350_DC2_FBSRC_MASK);
+ wm8350_reg_write(wm8350, WM8350_DCDC2_CONTROL, val |
+ (mode << WM8350_DC2_MODE_SHIFT) |
+ (ilim << WM8350_DC2_ILIM_SHIFT) |
+ (ramp << WM8350_DC2_RMP_SHIFT) |
+ (feedback << WM8350_DC2_FBSRC_SHIFT));
+ break;
+ case WM8350_DCDC_5:
+ val = wm8350_reg_read(wm8350, WM8350_DCDC5_CONTROL)
+ & ~(WM8350_DC5_MODE_MASK | WM8350_DC5_ILIM_MASK |
+ WM8350_DC5_RMP_MASK | WM8350_DC5_FBSRC_MASK);
+ wm8350_reg_write(wm8350, WM8350_DCDC5_CONTROL, val |
+ (mode << WM8350_DC5_MODE_SHIFT) |
+ (ilim << WM8350_DC5_ILIM_SHIFT) |
+ (ramp << WM8350_DC5_RMP_SHIFT) |
+ (feedback << WM8350_DC5_FBSRC_SHIFT));
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(wm8350_dcdc25_set_mode);
+
+static int wm8350_dcdc_enable(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int dcdc = rdev_get_id(rdev);
+ u16 shift;
+
+ if (dcdc < WM8350_DCDC_1 || dcdc > WM8350_DCDC_6)
+ return -EINVAL;
+
+ shift = dcdc - WM8350_DCDC_1;
+ wm8350_set_bits(wm8350, WM8350_DCDC_LDO_REQUESTED, 1 << shift);
+ return 0;
+}
+
+static int wm8350_dcdc_disable(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int dcdc = rdev_get_id(rdev);
+ u16 shift;
+
+ if (dcdc < WM8350_DCDC_1 || dcdc > WM8350_DCDC_6)
+ return -EINVAL;
+
+ shift = dcdc - WM8350_DCDC_1;
+ wm8350_clear_bits(wm8350, WM8350_DCDC_LDO_REQUESTED, 1 << shift);
+
+ return 0;
+}
+
+static int wm8350_ldo_enable(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int ldo = rdev_get_id(rdev);
+ u16 shift;
+
+ if (ldo < WM8350_LDO_1 || ldo > WM8350_LDO_4)
+ return -EINVAL;
+
+ shift = (ldo - WM8350_LDO_1) + 8;
+ wm8350_set_bits(wm8350, WM8350_DCDC_LDO_REQUESTED, 1 << shift);
+ return 0;
+}
+
+static int wm8350_ldo_disable(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int ldo = rdev_get_id(rdev);
+ u16 shift;
+
+ if (ldo < WM8350_LDO_1 || ldo > WM8350_LDO_4)
+ return -EINVAL;
+
+ shift = (ldo - WM8350_LDO_1) + 8;
+ wm8350_clear_bits(wm8350, WM8350_DCDC_LDO_REQUESTED, 1 << shift);
+ return 0;
+}
+
+static int force_continuous_enable(struct wm8350 *wm8350, int dcdc, int enable)
+{
+ int reg = 0, ret;
+
+ switch (dcdc) {
+ case WM8350_DCDC_1:
+ reg = WM8350_DCDC1_FORCE_PWM;
+ break;
+ case WM8350_DCDC_3:
+ reg = WM8350_DCDC3_FORCE_PWM;
+ break;
+ case WM8350_DCDC_4:
+ reg = WM8350_DCDC4_FORCE_PWM;
+ break;
+ case WM8350_DCDC_6:
+ reg = WM8350_DCDC6_FORCE_PWM;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (enable)
+ ret = wm8350_set_bits(wm8350, reg,
+ WM8350_DCDC1_FORCE_PWM_ENA);
+ else
+ ret = wm8350_clear_bits(wm8350, reg,
+ WM8350_DCDC1_FORCE_PWM_ENA);
+ return ret;
+}
+
+static int wm8350_dcdc_set_mode(struct regulator_dev *rdev, unsigned int mode)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int dcdc = rdev_get_id(rdev);
+ u16 val;
+
+ if (dcdc < WM8350_DCDC_1 || dcdc > WM8350_DCDC_6)
+ return -EINVAL;
+
+ if (dcdc == WM8350_DCDC_2 || dcdc == WM8350_DCDC_5)
+ return -EINVAL;
+
+ val = 1 << (dcdc - WM8350_DCDC_1);
+
+ switch (mode) {
+ case REGULATOR_MODE_FAST:
+ /* force continuous mode */
+ wm8350_set_bits(wm8350, WM8350_DCDC_ACTIVE_OPTIONS, val);
+ wm8350_clear_bits(wm8350, WM8350_DCDC_SLEEP_OPTIONS, val);
+ force_continuous_enable(wm8350, dcdc, 1);
+ break;
+ case REGULATOR_MODE_NORMAL:
+ /* active / pulse skipping */
+ wm8350_set_bits(wm8350, WM8350_DCDC_ACTIVE_OPTIONS, val);
+ wm8350_clear_bits(wm8350, WM8350_DCDC_SLEEP_OPTIONS, val);
+ force_continuous_enable(wm8350, dcdc, 0);
+ break;
+ case REGULATOR_MODE_IDLE:
+ /* standby mode */
+ force_continuous_enable(wm8350, dcdc, 0);
+ wm8350_clear_bits(wm8350, WM8350_DCDC_SLEEP_OPTIONS, val);
+ wm8350_clear_bits(wm8350, WM8350_DCDC_ACTIVE_OPTIONS, val);
+ break;
+ case REGULATOR_MODE_STANDBY:
+ /* LDO mode */
+ force_continuous_enable(wm8350, dcdc, 0);
+ wm8350_set_bits(wm8350, WM8350_DCDC_SLEEP_OPTIONS, val);
+ break;
+ }
+
+ return 0;
+}
+
+static unsigned int wm8350_dcdc_get_mode(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int dcdc = rdev_get_id(rdev);
+ u16 mask, sleep, active, force;
+ int mode = REGULATOR_MODE_NORMAL;
+ int reg;
+
+ switch (dcdc) {
+ case WM8350_DCDC_1:
+ reg = WM8350_DCDC1_FORCE_PWM;
+ break;
+ case WM8350_DCDC_3:
+ reg = WM8350_DCDC3_FORCE_PWM;
+ break;
+ case WM8350_DCDC_4:
+ reg = WM8350_DCDC4_FORCE_PWM;
+ break;
+ case WM8350_DCDC_6:
+ reg = WM8350_DCDC6_FORCE_PWM;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ mask = 1 << (dcdc - WM8350_DCDC_1);
+ active = wm8350_reg_read(wm8350, WM8350_DCDC_ACTIVE_OPTIONS) & mask;
+ force = wm8350_reg_read(wm8350, reg) & WM8350_DCDC1_FORCE_PWM_ENA;
+ sleep = wm8350_reg_read(wm8350, WM8350_DCDC_SLEEP_OPTIONS) & mask;
+
+ dev_dbg(wm8350->dev, "mask %x active %x sleep %x force %x",
+ mask, active, sleep, force);
+
+ if (active && !sleep) {
+ if (force)
+ mode = REGULATOR_MODE_FAST;
+ else
+ mode = REGULATOR_MODE_NORMAL;
+ } else if (!active && !sleep)
+ mode = REGULATOR_MODE_IDLE;
+ else if (sleep)
+ mode = REGULATOR_MODE_STANDBY;
+
+ return mode;
+}
+
+static unsigned int wm8350_ldo_get_mode(struct regulator_dev *rdev)
+{
+ return REGULATOR_MODE_NORMAL;
+}
+
+struct wm8350_dcdc_efficiency {
+ int uA_load_min;
+ int uA_load_max;
+ unsigned int mode;
+};
+
+static const struct wm8350_dcdc_efficiency dcdc1_6_efficiency[] = {
+ {0, 10000, REGULATOR_MODE_STANDBY}, /* 0 - 10mA - LDO */
+ {10000, 100000, REGULATOR_MODE_IDLE}, /* 10mA - 100mA - Standby */
+ {100000, 1000000, REGULATOR_MODE_NORMAL}, /* > 100mA - Active */
+ {-1, -1, REGULATOR_MODE_NORMAL},
+};
+
+static const struct wm8350_dcdc_efficiency dcdc3_4_efficiency[] = {
+ {0, 10000, REGULATOR_MODE_STANDBY}, /* 0 - 10mA - LDO */
+ {10000, 100000, REGULATOR_MODE_IDLE}, /* 10mA - 100mA - Standby */
+ {100000, 800000, REGULATOR_MODE_NORMAL}, /* > 100mA - Active */
+ {-1, -1, REGULATOR_MODE_NORMAL},
+};
+
+static unsigned int get_mode(int uA, const struct wm8350_dcdc_efficiency *eff)
+{
+ int i = 0;
+
+ while (eff[i].uA_load_min != -1) {
+ if (uA >= eff[i].uA_load_min && uA <= eff[i].uA_load_max)
+ return eff[i].mode;
+ }
+ return REGULATOR_MODE_NORMAL;
+}
+
+/* Query the regulator for it's most efficient mode @ uV,uA
+ * WM8350 regulator efficiency is pretty similar over
+ * different input and output uV.
+ */
+static unsigned int wm8350_dcdc_get_optimum_mode(struct regulator_dev *rdev,
+ int input_uV, int output_uV,
+ int output_uA)
+{
+ int dcdc = rdev_get_id(rdev), mode;
+
+ switch (dcdc) {
+ case WM8350_DCDC_1:
+ case WM8350_DCDC_6:
+ mode = get_mode(output_uA, dcdc1_6_efficiency);
+ break;
+ case WM8350_DCDC_3:
+ case WM8350_DCDC_4:
+ mode = get_mode(output_uA, dcdc3_4_efficiency);
+ break;
+ default:
+ mode = REGULATOR_MODE_NORMAL;
+ break;
+ }
+ return mode;
+}
+
+static int wm8350_dcdc_is_enabled(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int dcdc = rdev_get_id(rdev), shift;
+
+ if (dcdc < WM8350_DCDC_1 || dcdc > WM8350_DCDC_6)
+ return -EINVAL;
+
+ shift = dcdc - WM8350_DCDC_1;
+ return wm8350_reg_read(wm8350, WM8350_DCDC_LDO_REQUESTED)
+ & (1 << shift);
+}
+
+static int wm8350_ldo_is_enabled(struct regulator_dev *rdev)
+{
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+ int ldo = rdev_get_id(rdev), shift;
+
+ if (ldo < WM8350_LDO_1 || ldo > WM8350_LDO_4)
+ return -EINVAL;
+
+ shift = (ldo - WM8350_LDO_1) + 8;
+ return wm8350_reg_read(wm8350, WM8350_DCDC_LDO_REQUESTED)
+ & (1 << shift);
+}
+
+static struct regulator_ops wm8350_dcdc_ops = {
+ .set_voltage = wm8350_dcdc_set_voltage,
+ .get_voltage_sel = wm8350_dcdc_get_voltage_sel,
+ .list_voltage = wm8350_dcdc_list_voltage,
+ .enable = wm8350_dcdc_enable,
+ .disable = wm8350_dcdc_disable,
+ .get_mode = wm8350_dcdc_get_mode,
+ .set_mode = wm8350_dcdc_set_mode,
+ .get_optimum_mode = wm8350_dcdc_get_optimum_mode,
+ .is_enabled = wm8350_dcdc_is_enabled,
+ .set_suspend_voltage = wm8350_dcdc_set_suspend_voltage,
+ .set_suspend_enable = wm8350_dcdc_set_suspend_enable,
+ .set_suspend_disable = wm8350_dcdc_set_suspend_disable,
+ .set_suspend_mode = wm8350_dcdc_set_suspend_mode,
+};
+
+static struct regulator_ops wm8350_dcdc2_5_ops = {
+ .enable = wm8350_dcdc_enable,
+ .disable = wm8350_dcdc_disable,
+ .is_enabled = wm8350_dcdc_is_enabled,
+ .set_suspend_enable = wm8350_dcdc25_set_suspend_enable,
+ .set_suspend_disable = wm8350_dcdc25_set_suspend_disable,
+};
+
+static struct regulator_ops wm8350_ldo_ops = {
+ .set_voltage = wm8350_ldo_set_voltage,
+ .get_voltage_sel = wm8350_ldo_get_voltage_sel,
+ .list_voltage = wm8350_ldo_list_voltage,
+ .enable = wm8350_ldo_enable,
+ .disable = wm8350_ldo_disable,
+ .is_enabled = wm8350_ldo_is_enabled,
+ .get_mode = wm8350_ldo_get_mode,
+ .set_suspend_voltage = wm8350_ldo_set_suspend_voltage,
+ .set_suspend_enable = wm8350_ldo_set_suspend_enable,
+ .set_suspend_disable = wm8350_ldo_set_suspend_disable,
+};
+
+static struct regulator_ops wm8350_isink_ops = {
+ .set_current_limit = wm8350_isink_set_current,
+ .get_current_limit = wm8350_isink_get_current,
+ .enable = wm8350_isink_enable,
+ .disable = wm8350_isink_disable,
+ .is_enabled = wm8350_isink_is_enabled,
+ .enable_time = wm8350_isink_enable_time,
+};
+
+static struct regulator_desc wm8350_reg[NUM_WM8350_REGULATORS] = {
+ {
+ .name = "DCDC1",
+ .id = WM8350_DCDC_1,
+ .ops = &wm8350_dcdc_ops,
+ .irq = WM8350_IRQ_UV_DC1,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8350_DCDC_MAX_VSEL + 1,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "DCDC2",
+ .id = WM8350_DCDC_2,
+ .ops = &wm8350_dcdc2_5_ops,
+ .irq = WM8350_IRQ_UV_DC2,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "DCDC3",
+ .id = WM8350_DCDC_3,
+ .ops = &wm8350_dcdc_ops,
+ .irq = WM8350_IRQ_UV_DC3,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8350_DCDC_MAX_VSEL + 1,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "DCDC4",
+ .id = WM8350_DCDC_4,
+ .ops = &wm8350_dcdc_ops,
+ .irq = WM8350_IRQ_UV_DC4,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8350_DCDC_MAX_VSEL + 1,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "DCDC5",
+ .id = WM8350_DCDC_5,
+ .ops = &wm8350_dcdc2_5_ops,
+ .irq = WM8350_IRQ_UV_DC5,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "DCDC6",
+ .id = WM8350_DCDC_6,
+ .ops = &wm8350_dcdc_ops,
+ .irq = WM8350_IRQ_UV_DC6,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8350_DCDC_MAX_VSEL + 1,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO1",
+ .id = WM8350_LDO_1,
+ .ops = &wm8350_ldo_ops,
+ .irq = WM8350_IRQ_UV_LDO1,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8350_LDO1_VSEL_MASK + 1,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO2",
+ .id = WM8350_LDO_2,
+ .ops = &wm8350_ldo_ops,
+ .irq = WM8350_IRQ_UV_LDO2,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8350_LDO2_VSEL_MASK + 1,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO3",
+ .id = WM8350_LDO_3,
+ .ops = &wm8350_ldo_ops,
+ .irq = WM8350_IRQ_UV_LDO3,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8350_LDO3_VSEL_MASK + 1,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO4",
+ .id = WM8350_LDO_4,
+ .ops = &wm8350_ldo_ops,
+ .irq = WM8350_IRQ_UV_LDO4,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8350_LDO4_VSEL_MASK + 1,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "ISINKA",
+ .id = WM8350_ISINK_A,
+ .ops = &wm8350_isink_ops,
+ .irq = WM8350_IRQ_CS1,
+ .type = REGULATOR_CURRENT,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "ISINKB",
+ .id = WM8350_ISINK_B,
+ .ops = &wm8350_isink_ops,
+ .irq = WM8350_IRQ_CS2,
+ .type = REGULATOR_CURRENT,
+ .owner = THIS_MODULE,
+ },
+};
+
+static irqreturn_t pmic_uv_handler(int irq, void *data)
+{
+ struct regulator_dev *rdev = (struct regulator_dev *)data;
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+
+ mutex_lock(&rdev->mutex);
+ if (irq == WM8350_IRQ_CS1 || irq == WM8350_IRQ_CS2)
+ regulator_notifier_call_chain(rdev,
+ REGULATOR_EVENT_REGULATION_OUT,
+ wm8350);
+ else
+ regulator_notifier_call_chain(rdev,
+ REGULATOR_EVENT_UNDER_VOLTAGE,
+ wm8350);
+ mutex_unlock(&rdev->mutex);
+
+ return IRQ_HANDLED;
+}
+
+static int wm8350_regulator_probe(struct platform_device *pdev)
+{
+ struct wm8350 *wm8350 = dev_get_drvdata(&pdev->dev);
+ struct regulator_dev *rdev;
+ int ret;
+ u16 val;
+
+ if (pdev->id < WM8350_DCDC_1 || pdev->id > WM8350_ISINK_B)
+ return -ENODEV;
+
+ /* do any regulatior specific init */
+ switch (pdev->id) {
+ case WM8350_DCDC_1:
+ val = wm8350_reg_read(wm8350, WM8350_DCDC1_LOW_POWER);
+ wm8350->pmic.dcdc1_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK;
+ break;
+ case WM8350_DCDC_3:
+ val = wm8350_reg_read(wm8350, WM8350_DCDC3_LOW_POWER);
+ wm8350->pmic.dcdc3_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK;
+ break;
+ case WM8350_DCDC_4:
+ val = wm8350_reg_read(wm8350, WM8350_DCDC4_LOW_POWER);
+ wm8350->pmic.dcdc4_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK;
+ break;
+ case WM8350_DCDC_6:
+ val = wm8350_reg_read(wm8350, WM8350_DCDC6_LOW_POWER);
+ wm8350->pmic.dcdc6_hib_mode = val & WM8350_DCDC_HIB_MODE_MASK;
+ break;
+ }
+
+ /* register regulator */
+ rdev = regulator_register(&wm8350_reg[pdev->id], &pdev->dev,
+ pdev->dev.platform_data,
+ dev_get_drvdata(&pdev->dev), NULL);
+ if (IS_ERR(rdev)) {
+ dev_err(&pdev->dev, "failed to register %s\n",
+ wm8350_reg[pdev->id].name);
+ return PTR_ERR(rdev);
+ }
+
+ /* register regulator IRQ */
+ ret = wm8350_register_irq(wm8350, wm8350_reg[pdev->id].irq,
+ pmic_uv_handler, 0, "UV", rdev);
+ if (ret < 0) {
+ regulator_unregister(rdev);
+ dev_err(&pdev->dev, "failed to register regulator %s IRQ\n",
+ wm8350_reg[pdev->id].name);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int wm8350_regulator_remove(struct platform_device *pdev)
+{
+ struct regulator_dev *rdev = platform_get_drvdata(pdev);
+ struct wm8350 *wm8350 = rdev_get_drvdata(rdev);
+
+ wm8350_free_irq(wm8350, wm8350_reg[pdev->id].irq, rdev);
+
+ regulator_unregister(rdev);
+
+ return 0;
+}
+
+int wm8350_register_regulator(struct wm8350 *wm8350, int reg,
+ struct regulator_init_data *initdata)
+{
+ struct platform_device *pdev;
+ int ret;
+ if (reg < 0 || reg >= NUM_WM8350_REGULATORS)
+ return -EINVAL;
+
+ if (wm8350->pmic.pdev[reg])
+ return -EBUSY;
+
+ if (reg >= WM8350_DCDC_1 && reg <= WM8350_DCDC_6 &&
+ reg > wm8350->pmic.max_dcdc)
+ return -ENODEV;
+ if (reg >= WM8350_ISINK_A && reg <= WM8350_ISINK_B &&
+ reg > wm8350->pmic.max_isink)
+ return -ENODEV;
+
+ pdev = platform_device_alloc("wm8350-regulator", reg);
+ if (!pdev)
+ return -ENOMEM;
+
+ wm8350->pmic.pdev[reg] = pdev;
+
+ initdata->driver_data = wm8350;
+
+ pdev->dev.platform_data = initdata;
+ pdev->dev.parent = wm8350->dev;
+ platform_set_drvdata(pdev, wm8350);
+
+ ret = platform_device_add(pdev);
+
+ if (ret != 0) {
+ dev_err(wm8350->dev, "Failed to register regulator %d: %d\n",
+ reg, ret);
+ platform_device_put(pdev);
+ wm8350->pmic.pdev[reg] = NULL;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(wm8350_register_regulator);
+
+/**
+ * wm8350_register_led - Register a WM8350 LED output
+ *
+ * @param wm8350 The WM8350 device to configure.
+ * @param lednum LED device index to create.
+ * @param dcdc The DCDC to use for the LED.
+ * @param isink The ISINK to use for the LED.
+ * @param pdata Configuration for the LED.
+ *
+ * The WM8350 supports the use of an ISINK together with a DCDC to
+ * provide a power-efficient LED driver. This function registers the
+ * regulators and instantiates the platform device for a LED. The
+ * operating modes for the LED regulators must be configured using
+ * wm8350_isink_set_flash(), wm8350_dcdc25_set_mode() and
+ * wm8350_dcdc_set_slot() prior to calling this function.
+ */
+int wm8350_register_led(struct wm8350 *wm8350, int lednum, int dcdc, int isink,
+ struct wm8350_led_platform_data *pdata)
+{
+ struct wm8350_led *led;
+ struct platform_device *pdev;
+ int ret;
+
+ if (lednum >= ARRAY_SIZE(wm8350->pmic.led) || lednum < 0) {
+ dev_err(wm8350->dev, "Invalid LED index %d\n", lednum);
+ return -ENODEV;
+ }
+
+ led = &wm8350->pmic.led[lednum];
+
+ if (led->pdev) {
+ dev_err(wm8350->dev, "LED %d already allocated\n", lednum);
+ return -EINVAL;
+ }
+
+ pdev = platform_device_alloc("wm8350-led", lednum);
+ if (pdev == NULL) {
+ dev_err(wm8350->dev, "Failed to allocate LED %d\n", lednum);
+ return -ENOMEM;
+ }
+
+ led->isink_consumer.dev_name = dev_name(&pdev->dev);
+ led->isink_consumer.supply = "led_isink";
+ led->isink_init.num_consumer_supplies = 1;
+ led->isink_init.consumer_supplies = &led->isink_consumer;
+ led->isink_init.constraints.min_uA = 0;
+ led->isink_init.constraints.max_uA = pdata->max_uA;
+ led->isink_init.constraints.valid_ops_mask
+ = REGULATOR_CHANGE_CURRENT | REGULATOR_CHANGE_STATUS;
+ led->isink_init.constraints.valid_modes_mask = REGULATOR_MODE_NORMAL;
+ ret = wm8350_register_regulator(wm8350, isink, &led->isink_init);
+ if (ret != 0) {
+ platform_device_put(pdev);
+ return ret;
+ }
+
+ led->dcdc_consumer.dev_name = dev_name(&pdev->dev);
+ led->dcdc_consumer.supply = "led_vcc";
+ led->dcdc_init.num_consumer_supplies = 1;
+ led->dcdc_init.consumer_supplies = &led->dcdc_consumer;
+ led->dcdc_init.constraints.valid_modes_mask = REGULATOR_MODE_NORMAL;
+ led->dcdc_init.constraints.valid_ops_mask = REGULATOR_CHANGE_STATUS;
+ ret = wm8350_register_regulator(wm8350, dcdc, &led->dcdc_init);
+ if (ret != 0) {
+ platform_device_put(pdev);
+ return ret;
+ }
+
+ switch (isink) {
+ case WM8350_ISINK_A:
+ wm8350->pmic.isink_A_dcdc = dcdc;
+ break;
+ case WM8350_ISINK_B:
+ wm8350->pmic.isink_B_dcdc = dcdc;
+ break;
+ }
+
+ pdev->dev.platform_data = pdata;
+ pdev->dev.parent = wm8350->dev;
+ ret = platform_device_add(pdev);
+ if (ret != 0) {
+ dev_err(wm8350->dev, "Failed to register LED %d: %d\n",
+ lednum, ret);
+ platform_device_put(pdev);
+ return ret;
+ }
+
+ led->pdev = pdev;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(wm8350_register_led);
+
+static struct platform_driver wm8350_regulator_driver = {
+ .probe = wm8350_regulator_probe,
+ .remove = wm8350_regulator_remove,
+ .driver = {
+ .name = "wm8350-regulator",
+ },
+};
+
+static int __init wm8350_regulator_init(void)
+{
+ return platform_driver_register(&wm8350_regulator_driver);
+}
+subsys_initcall(wm8350_regulator_init);
+
+static void __exit wm8350_regulator_exit(void)
+{
+ platform_driver_unregister(&wm8350_regulator_driver);
+}
+module_exit(wm8350_regulator_exit);
+
+/* Module information */
+MODULE_AUTHOR("Liam Girdwood");
+MODULE_DESCRIPTION("WM8350 voltage and current regulator driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:wm8350-regulator");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/wm8400-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/wm8400-regulator.c
new file mode 100644
index 0000000..8477153
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/wm8400-regulator.c
@@ -0,0 +1,402 @@
+/*
+ * Regulator support for WM8400
+ *
+ * Copyright 2008 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/bug.h>
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/regulator/driver.h>
+#include <linux/mfd/wm8400-private.h>
+
+static int wm8400_ldo_is_enabled(struct regulator_dev *dev)
+{
+ struct wm8400 *wm8400 = rdev_get_drvdata(dev);
+ u16 val;
+
+ val = wm8400_reg_read(wm8400, WM8400_LDO1_CONTROL + rdev_get_id(dev));
+ return (val & WM8400_LDO1_ENA) != 0;
+}
+
+static int wm8400_ldo_enable(struct regulator_dev *dev)
+{
+ struct wm8400 *wm8400 = rdev_get_drvdata(dev);
+
+ return wm8400_set_bits(wm8400, WM8400_LDO1_CONTROL + rdev_get_id(dev),
+ WM8400_LDO1_ENA, WM8400_LDO1_ENA);
+}
+
+static int wm8400_ldo_disable(struct regulator_dev *dev)
+{
+ struct wm8400 *wm8400 = rdev_get_drvdata(dev);
+
+ return wm8400_set_bits(wm8400, WM8400_LDO1_CONTROL + rdev_get_id(dev),
+ WM8400_LDO1_ENA, 0);
+}
+
+static int wm8400_ldo_list_voltage(struct regulator_dev *dev,
+ unsigned selector)
+{
+ if (selector > WM8400_LDO1_VSEL_MASK)
+ return -EINVAL;
+
+ if (selector < 15)
+ return 900000 + (selector * 50000);
+ else
+ return 1600000 + ((selector - 14) * 100000);
+}
+
+static int wm8400_ldo_get_voltage_sel(struct regulator_dev *dev)
+{
+ struct wm8400 *wm8400 = rdev_get_drvdata(dev);
+ u16 val;
+
+ val = wm8400_reg_read(wm8400, WM8400_LDO1_CONTROL + rdev_get_id(dev));
+ val &= WM8400_LDO1_VSEL_MASK;
+
+ return val;
+}
+
+static int wm8400_ldo_set_voltage(struct regulator_dev *dev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct wm8400 *wm8400 = rdev_get_drvdata(dev);
+ u16 val;
+
+ if (min_uV < 900000 || min_uV > 3300000)
+ return -EINVAL;
+
+ if (min_uV < 1700000) {
+ /* Steps of 50mV from 900mV; */
+ val = DIV_ROUND_UP(min_uV - 900000, 50000);
+
+ if ((val * 50000) + 900000 > max_uV)
+ return -EINVAL;
+ BUG_ON((val * 50000) + 900000 < min_uV);
+ } else {
+ /* Steps of 100mV from 1700mV */
+ val = DIV_ROUND_UP(min_uV - 1700000, 100000);
+
+ if ((val * 100000) + 1700000 > max_uV)
+ return -EINVAL;
+ BUG_ON((val * 100000) + 1700000 < min_uV);
+
+ val += 0xf;
+ }
+
+ *selector = val;
+
+ return wm8400_set_bits(wm8400, WM8400_LDO1_CONTROL + rdev_get_id(dev),
+ WM8400_LDO1_VSEL_MASK, val);
+}
+
+static struct regulator_ops wm8400_ldo_ops = {
+ .is_enabled = wm8400_ldo_is_enabled,
+ .enable = wm8400_ldo_enable,
+ .disable = wm8400_ldo_disable,
+ .list_voltage = wm8400_ldo_list_voltage,
+ .get_voltage_sel = wm8400_ldo_get_voltage_sel,
+ .set_voltage = wm8400_ldo_set_voltage,
+};
+
+static int wm8400_dcdc_is_enabled(struct regulator_dev *dev)
+{
+ struct wm8400 *wm8400 = rdev_get_drvdata(dev);
+ int offset = (rdev_get_id(dev) - WM8400_DCDC1) * 2;
+ u16 val;
+
+ val = wm8400_reg_read(wm8400, WM8400_DCDC1_CONTROL_1 + offset);
+ return (val & WM8400_DC1_ENA) != 0;
+}
+
+static int wm8400_dcdc_enable(struct regulator_dev *dev)
+{
+ struct wm8400 *wm8400 = rdev_get_drvdata(dev);
+ int offset = (rdev_get_id(dev) - WM8400_DCDC1) * 2;
+
+ return wm8400_set_bits(wm8400, WM8400_DCDC1_CONTROL_1 + offset,
+ WM8400_DC1_ENA, WM8400_DC1_ENA);
+}
+
+static int wm8400_dcdc_disable(struct regulator_dev *dev)
+{
+ struct wm8400 *wm8400 = rdev_get_drvdata(dev);
+ int offset = (rdev_get_id(dev) - WM8400_DCDC1) * 2;
+
+ return wm8400_set_bits(wm8400, WM8400_DCDC1_CONTROL_1 + offset,
+ WM8400_DC1_ENA, 0);
+}
+
+static int wm8400_dcdc_list_voltage(struct regulator_dev *dev,
+ unsigned selector)
+{
+ if (selector > WM8400_DC1_VSEL_MASK)
+ return -EINVAL;
+
+ return 850000 + (selector * 25000);
+}
+
+static int wm8400_dcdc_get_voltage_sel(struct regulator_dev *dev)
+{
+ struct wm8400 *wm8400 = rdev_get_drvdata(dev);
+ u16 val;
+ int offset = (rdev_get_id(dev) - WM8400_DCDC1) * 2;
+
+ val = wm8400_reg_read(wm8400, WM8400_DCDC1_CONTROL_1 + offset);
+ val &= WM8400_DC1_VSEL_MASK;
+
+ return val;
+}
+
+static int wm8400_dcdc_set_voltage(struct regulator_dev *dev,
+ int min_uV, int max_uV, unsigned *selector)
+{
+ struct wm8400 *wm8400 = rdev_get_drvdata(dev);
+ u16 val;
+ int offset = (rdev_get_id(dev) - WM8400_DCDC1) * 2;
+
+ if (min_uV < 850000)
+ return -EINVAL;
+
+ val = DIV_ROUND_UP(min_uV - 850000, 25000);
+
+ if (850000 + (25000 * val) > max_uV)
+ return -EINVAL;
+ BUG_ON(850000 + (25000 * val) < min_uV);
+
+ *selector = val;
+
+ return wm8400_set_bits(wm8400, WM8400_DCDC1_CONTROL_1 + offset,
+ WM8400_DC1_VSEL_MASK, val);
+}
+
+static unsigned int wm8400_dcdc_get_mode(struct regulator_dev *dev)
+{
+ struct wm8400 *wm8400 = rdev_get_drvdata(dev);
+ int offset = (rdev_get_id(dev) - WM8400_DCDC1) * 2;
+ u16 data[2];
+ int ret;
+
+ ret = wm8400_block_read(wm8400, WM8400_DCDC1_CONTROL_1 + offset, 2,
+ data);
+ if (ret != 0)
+ return 0;
+
+ /* Datasheet: hibernate */
+ if (data[0] & WM8400_DC1_SLEEP)
+ return REGULATOR_MODE_STANDBY;
+
+ /* Datasheet: standby */
+ if (!(data[0] & WM8400_DC1_ACTIVE))
+ return REGULATOR_MODE_IDLE;
+
+ /* Datasheet: active with or without force PWM */
+ if (data[1] & WM8400_DC1_FRC_PWM)
+ return REGULATOR_MODE_FAST;
+ else
+ return REGULATOR_MODE_NORMAL;
+}
+
+static int wm8400_dcdc_set_mode(struct regulator_dev *dev, unsigned int mode)
+{
+ struct wm8400 *wm8400 = rdev_get_drvdata(dev);
+ int offset = (rdev_get_id(dev) - WM8400_DCDC1) * 2;
+ int ret;
+
+ switch (mode) {
+ case REGULATOR_MODE_FAST:
+ /* Datasheet: active with force PWM */
+ ret = wm8400_set_bits(wm8400, WM8400_DCDC1_CONTROL_2 + offset,
+ WM8400_DC1_FRC_PWM, WM8400_DC1_FRC_PWM);
+ if (ret != 0)
+ return ret;
+
+ return wm8400_set_bits(wm8400, WM8400_DCDC1_CONTROL_1 + offset,
+ WM8400_DC1_ACTIVE | WM8400_DC1_SLEEP,
+ WM8400_DC1_ACTIVE);
+
+ case REGULATOR_MODE_NORMAL:
+ /* Datasheet: active */
+ ret = wm8400_set_bits(wm8400, WM8400_DCDC1_CONTROL_2 + offset,
+ WM8400_DC1_FRC_PWM, 0);
+ if (ret != 0)
+ return ret;
+
+ return wm8400_set_bits(wm8400, WM8400_DCDC1_CONTROL_1 + offset,
+ WM8400_DC1_ACTIVE | WM8400_DC1_SLEEP,
+ WM8400_DC1_ACTIVE);
+
+ case REGULATOR_MODE_IDLE:
+ /* Datasheet: standby */
+ ret = wm8400_set_bits(wm8400, WM8400_DCDC1_CONTROL_1 + offset,
+ WM8400_DC1_ACTIVE, 0);
+ if (ret != 0)
+ return ret;
+ return wm8400_set_bits(wm8400, WM8400_DCDC1_CONTROL_1 + offset,
+ WM8400_DC1_SLEEP, 0);
+
+ default:
+ return -EINVAL;
+ }
+}
+
+static unsigned int wm8400_dcdc_get_optimum_mode(struct regulator_dev *dev,
+ int input_uV, int output_uV,
+ int load_uA)
+{
+ return REGULATOR_MODE_NORMAL;
+}
+
+static struct regulator_ops wm8400_dcdc_ops = {
+ .is_enabled = wm8400_dcdc_is_enabled,
+ .enable = wm8400_dcdc_enable,
+ .disable = wm8400_dcdc_disable,
+ .list_voltage = wm8400_dcdc_list_voltage,
+ .get_voltage_sel = wm8400_dcdc_get_voltage_sel,
+ .set_voltage = wm8400_dcdc_set_voltage,
+ .get_mode = wm8400_dcdc_get_mode,
+ .set_mode = wm8400_dcdc_set_mode,
+ .get_optimum_mode = wm8400_dcdc_get_optimum_mode,
+};
+
+static struct regulator_desc regulators[] = {
+ {
+ .name = "LDO1",
+ .id = WM8400_LDO1,
+ .ops = &wm8400_ldo_ops,
+ .n_voltages = WM8400_LDO1_VSEL_MASK + 1,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO2",
+ .id = WM8400_LDO2,
+ .ops = &wm8400_ldo_ops,
+ .n_voltages = WM8400_LDO2_VSEL_MASK + 1,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO3",
+ .id = WM8400_LDO3,
+ .ops = &wm8400_ldo_ops,
+ .n_voltages = WM8400_LDO3_VSEL_MASK + 1,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO4",
+ .id = WM8400_LDO4,
+ .ops = &wm8400_ldo_ops,
+ .n_voltages = WM8400_LDO4_VSEL_MASK + 1,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "DCDC1",
+ .id = WM8400_DCDC1,
+ .ops = &wm8400_dcdc_ops,
+ .n_voltages = WM8400_DC1_VSEL_MASK + 1,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "DCDC2",
+ .id = WM8400_DCDC2,
+ .ops = &wm8400_dcdc_ops,
+ .n_voltages = WM8400_DC2_VSEL_MASK + 1,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __devinit wm8400_regulator_probe(struct platform_device *pdev)
+{
+ struct wm8400 *wm8400 = container_of(pdev, struct wm8400, regulators[pdev->id]);
+ struct regulator_dev *rdev;
+
+ rdev = regulator_register(®ulators[pdev->id], &pdev->dev,
+ pdev->dev.platform_data, wm8400, NULL);
+
+ if (IS_ERR(rdev))
+ return PTR_ERR(rdev);
+
+ platform_set_drvdata(pdev, rdev);
+
+ return 0;
+}
+
+static int __devexit wm8400_regulator_remove(struct platform_device *pdev)
+{
+ struct regulator_dev *rdev = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+ regulator_unregister(rdev);
+
+ return 0;
+}
+
+static struct platform_driver wm8400_regulator_driver = {
+ .driver = {
+ .name = "wm8400-regulator",
+ },
+ .probe = wm8400_regulator_probe,
+ .remove = __devexit_p(wm8400_regulator_remove),
+};
+
+/**
+ * wm8400_register_regulator - enable software control of a WM8400 regulator
+ *
+ * This function enables software control of a WM8400 regulator via
+ * the regulator API. It is intended to be called from the
+ * platform_init() callback of the WM8400 MFD driver.
+ *
+ * @param dev The WM8400 device to operate on.
+ * @param reg The regulator to control.
+ * @param initdata Regulator initdata for the regulator.
+ */
+int wm8400_register_regulator(struct device *dev, int reg,
+ struct regulator_init_data *initdata)
+{
+ struct wm8400 *wm8400 = dev_get_drvdata(dev);
+
+ if (wm8400->regulators[reg].name)
+ return -EBUSY;
+
+ initdata->driver_data = wm8400;
+
+ wm8400->regulators[reg].name = "wm8400-regulator";
+ wm8400->regulators[reg].id = reg;
+ wm8400->regulators[reg].dev.parent = dev;
+ wm8400->regulators[reg].dev.platform_data = initdata;
+
+ return platform_device_register(&wm8400->regulators[reg]);
+}
+EXPORT_SYMBOL_GPL(wm8400_register_regulator);
+
+static int __init wm8400_regulator_init(void)
+{
+ return platform_driver_register(&wm8400_regulator_driver);
+}
+subsys_initcall(wm8400_regulator_init);
+
+static void __exit wm8400_regulator_exit(void)
+{
+ platform_driver_unregister(&wm8400_regulator_driver);
+}
+module_exit(wm8400_regulator_exit);
+
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("WM8400 regulator driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:wm8400-regulator");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/wm8994-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/wm8994-regulator.c
new file mode 100644
index 0000000..75ed402
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/wm8994-regulator.c
@@ -0,0 +1,335 @@
+/*
+ * wm8994-regulator.c -- Regulator driver for the WM8994
+ *
+ * Copyright 2009 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/gpio.h>
+#include <linux/slab.h>
+
+#include <linux/mfd/wm8994/core.h>
+#include <linux/mfd/wm8994/registers.h>
+#include <linux/mfd/wm8994/pdata.h>
+
+struct wm8994_ldo {
+ int enable;
+ bool is_enabled;
+ struct regulator_dev *regulator;
+ struct wm8994 *wm8994;
+};
+
+#define WM8994_LDO1_MAX_SELECTOR 0x7
+#define WM8994_LDO2_MAX_SELECTOR 0x3
+
+static int wm8994_ldo_enable(struct regulator_dev *rdev)
+{
+ struct wm8994_ldo *ldo = rdev_get_drvdata(rdev);
+
+ /* If we have no soft control assume that the LDO is always enabled. */
+ if (!ldo->enable)
+ return 0;
+
+ gpio_set_value_cansleep(ldo->enable, 1);
+ ldo->is_enabled = true;
+
+ return 0;
+}
+
+static int wm8994_ldo_disable(struct regulator_dev *rdev)
+{
+ struct wm8994_ldo *ldo = rdev_get_drvdata(rdev);
+
+ /* If we have no soft control assume that the LDO is always enabled. */
+ if (!ldo->enable)
+ return -EINVAL;
+
+ gpio_set_value_cansleep(ldo->enable, 0);
+ ldo->is_enabled = false;
+
+ return 0;
+}
+
+static int wm8994_ldo_is_enabled(struct regulator_dev *rdev)
+{
+ struct wm8994_ldo *ldo = rdev_get_drvdata(rdev);
+
+ return ldo->is_enabled;
+}
+
+static int wm8994_ldo_enable_time(struct regulator_dev *rdev)
+{
+ /* 3ms is fairly conservative but this shouldn't be too performance
+ * critical; can be tweaked per-system if required. */
+ return 3000;
+}
+
+static int wm8994_ldo1_list_voltage(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ if (selector > WM8994_LDO1_MAX_SELECTOR)
+ return -EINVAL;
+
+ return (selector * 100000) + 2400000;
+}
+
+static int wm8994_ldo1_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct wm8994_ldo *ldo = rdev_get_drvdata(rdev);
+ int val;
+
+ val = wm8994_reg_read(ldo->wm8994, WM8994_LDO_1);
+ if (val < 0)
+ return val;
+
+ return (val & WM8994_LDO1_VSEL_MASK) >> WM8994_LDO1_VSEL_SHIFT;
+}
+
+static int wm8994_ldo1_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *s)
+{
+ struct wm8994_ldo *ldo = rdev_get_drvdata(rdev);
+ int selector, v;
+
+ selector = (min_uV - 2400000) / 100000;
+ v = wm8994_ldo1_list_voltage(rdev, selector);
+ if (v < 0 || v > max_uV)
+ return -EINVAL;
+
+ *s = selector;
+ selector <<= WM8994_LDO1_VSEL_SHIFT;
+
+ return wm8994_set_bits(ldo->wm8994, WM8994_LDO_1,
+ WM8994_LDO1_VSEL_MASK, selector);
+}
+
+static struct regulator_ops wm8994_ldo1_ops = {
+ .enable = wm8994_ldo_enable,
+ .disable = wm8994_ldo_disable,
+ .is_enabled = wm8994_ldo_is_enabled,
+ .enable_time = wm8994_ldo_enable_time,
+
+ .list_voltage = wm8994_ldo1_list_voltage,
+ .get_voltage_sel = wm8994_ldo1_get_voltage_sel,
+ .set_voltage = wm8994_ldo1_set_voltage,
+};
+
+static int wm8994_ldo2_list_voltage(struct regulator_dev *rdev,
+ unsigned int selector)
+{
+ struct wm8994_ldo *ldo = rdev_get_drvdata(rdev);
+
+ if (selector > WM8994_LDO2_MAX_SELECTOR)
+ return -EINVAL;
+
+ switch (ldo->wm8994->type) {
+ case WM8994:
+ return (selector * 100000) + 900000;
+ case WM8958:
+ return (selector * 100000) + 1000000;
+ case WM1811:
+ switch (selector) {
+ case 0:
+ return -EINVAL;
+ default:
+ return (selector * 100000) + 950000;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+}
+
+static int wm8994_ldo2_get_voltage_sel(struct regulator_dev *rdev)
+{
+ struct wm8994_ldo *ldo = rdev_get_drvdata(rdev);
+ int val;
+
+ val = wm8994_reg_read(ldo->wm8994, WM8994_LDO_2);
+ if (val < 0)
+ return val;
+
+ return (val & WM8994_LDO2_VSEL_MASK) >> WM8994_LDO2_VSEL_SHIFT;
+}
+
+static int wm8994_ldo2_set_voltage(struct regulator_dev *rdev,
+ int min_uV, int max_uV, unsigned *s)
+{
+ struct wm8994_ldo *ldo = rdev_get_drvdata(rdev);
+ int selector, v;
+
+ switch (ldo->wm8994->type) {
+ case WM8994:
+ selector = (min_uV - 900000) / 100000;
+ break;
+ case WM8958:
+ selector = (min_uV - 1000000) / 100000;
+ break;
+ case WM1811:
+ selector = (min_uV - 950000) / 100000;
+ if (selector == 0)
+ selector = 1;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ v = wm8994_ldo2_list_voltage(rdev, selector);
+ if (v < 0 || v > max_uV)
+ return -EINVAL;
+
+ *s = selector;
+ selector <<= WM8994_LDO2_VSEL_SHIFT;
+
+ return wm8994_set_bits(ldo->wm8994, WM8994_LDO_2,
+ WM8994_LDO2_VSEL_MASK, selector);
+}
+
+static struct regulator_ops wm8994_ldo2_ops = {
+ .enable = wm8994_ldo_enable,
+ .disable = wm8994_ldo_disable,
+ .is_enabled = wm8994_ldo_is_enabled,
+ .enable_time = wm8994_ldo_enable_time,
+
+ .list_voltage = wm8994_ldo2_list_voltage,
+ .get_voltage_sel = wm8994_ldo2_get_voltage_sel,
+ .set_voltage = wm8994_ldo2_set_voltage,
+};
+
+static struct regulator_desc wm8994_ldo_desc[] = {
+ {
+ .name = "LDO1",
+ .id = 1,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8994_LDO1_MAX_SELECTOR + 1,
+ .ops = &wm8994_ldo1_ops,
+ .owner = THIS_MODULE,
+ },
+ {
+ .name = "LDO2",
+ .id = 2,
+ .type = REGULATOR_VOLTAGE,
+ .n_voltages = WM8994_LDO2_MAX_SELECTOR + 1,
+ .ops = &wm8994_ldo2_ops,
+ .owner = THIS_MODULE,
+ },
+};
+
+static __devinit int wm8994_ldo_probe(struct platform_device *pdev)
+{
+ struct wm8994 *wm8994 = dev_get_drvdata(pdev->dev.parent);
+ struct wm8994_pdata *pdata = wm8994->dev->platform_data;
+ int id = pdev->id % ARRAY_SIZE(pdata->ldo);
+ struct wm8994_ldo *ldo;
+ int ret;
+
+ dev_dbg(&pdev->dev, "Probing LDO%d\n", id + 1);
+
+ if (!pdata)
+ return -ENODEV;
+
+ ldo = devm_kzalloc(&pdev->dev, sizeof(struct wm8994_ldo), GFP_KERNEL);
+ if (ldo == NULL) {
+ dev_err(&pdev->dev, "Unable to allocate private data\n");
+ return -ENOMEM;
+ }
+
+ ldo->wm8994 = wm8994;
+
+ if (pdata->ldo[id].enable && gpio_is_valid(pdata->ldo[id].enable)) {
+ ldo->enable = pdata->ldo[id].enable;
+
+ ret = gpio_request(ldo->enable, "WM8994 LDO enable");
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to get enable GPIO: %d\n",
+ ret);
+ goto err;
+ }
+
+ ret = gpio_direction_output(ldo->enable, ldo->is_enabled);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Failed to set GPIO up: %d\n",
+ ret);
+ goto err_gpio;
+ }
+ } else
+ ldo->is_enabled = true;
+
+ ldo->regulator = regulator_register(&wm8994_ldo_desc[id], &pdev->dev,
+ pdata->ldo[id].init_data, ldo, NULL);
+ if (IS_ERR(ldo->regulator)) {
+ ret = PTR_ERR(ldo->regulator);
+ dev_err(wm8994->dev, "Failed to register LDO%d: %d\n",
+ id + 1, ret);
+ goto err_gpio;
+ }
+
+ platform_set_drvdata(pdev, ldo);
+
+ return 0;
+
+err_gpio:
+ if (gpio_is_valid(ldo->enable))
+ gpio_free(ldo->enable);
+err:
+ return ret;
+}
+
+static __devexit int wm8994_ldo_remove(struct platform_device *pdev)
+{
+ struct wm8994_ldo *ldo = platform_get_drvdata(pdev);
+
+ platform_set_drvdata(pdev, NULL);
+
+ regulator_unregister(ldo->regulator);
+ if (gpio_is_valid(ldo->enable))
+ gpio_free(ldo->enable);
+
+ return 0;
+}
+
+static struct platform_driver wm8994_ldo_driver = {
+ .probe = wm8994_ldo_probe,
+ .remove = __devexit_p(wm8994_ldo_remove),
+ .driver = {
+ .name = "wm8994-ldo",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init wm8994_ldo_init(void)
+{
+ int ret;
+
+ ret = platform_driver_register(&wm8994_ldo_driver);
+ if (ret != 0)
+ pr_err("Failed to register Wm8994 GP LDO driver: %d\n", ret);
+
+ return ret;
+}
+subsys_initcall(wm8994_ldo_init);
+
+static void __exit wm8994_ldo_exit(void)
+{
+ platform_driver_unregister(&wm8994_ldo_driver);
+}
+module_exit(wm8994_ldo_exit);
+
+/* Module information */
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("WM8994 LDO driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:wm8994-ldo");
diff --git a/ap/os/linux/linux-3.4.x/drivers/regulator/zx234290-regulator.c b/ap/os/linux/linux-3.4.x/drivers/regulator/zx234290-regulator.c
new file mode 100644
index 0000000..9fd17d6
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/drivers/regulator/zx234290-regulator.c
@@ -0,0 +1,705 @@
+/*
+ * zx234290-regulator.c -- ZTE zx234290
+ *
+ * Copyright 2013 ZTE Corporation.
+ *
+ * Author: Dong Jian <>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This driver is based on wm8350 implementation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/mfd/zx234290.h>
+
+//#define ZX234290_REG_VCOIN 16 /* 0x02 */
+//#define ZX234290_REG_VRF 17 /* fixed */
+
+/* Number of step-down converters available */
+#define ZX234290_NUM_DCDC 5
+
+/* Number of LDO voltage regulators available */
+#define ZX234290_NUM_LDO 11
+
+/* Number of total regulators available */
+#define ZX234290_NUM_REGULATOR (ZX234290_NUM_DCDC + ZX234290_NUM_LDO)
+
+
+struct zx_info {
+ const char *name;
+};
+
+static struct zx_info zx234290_regs[] = {
+ {
+ .name = "LDO1",
+ },
+ {
+ .name = "LDO2",
+ },
+ {
+ .name = "LDO3",
+ },
+ {
+ .name = "LDO4",
+ },
+ {
+ .name = "LDO5",
+ },
+ {
+ .name = "LDO6",
+ },
+ {
+ .name = "LDO7",
+ },
+ {
+ .name = "LDO8",
+ },
+ {
+ .name = "LDO9",
+ },
+ {
+ .name = "LDO10",
+ },
+ {
+ .name = "LDO11",
+ },
+ {
+ .name = "DCDC0",
+ },
+ {
+ .name = "DCDC1",
+ },
+ {
+ .name = "DCDC2",
+ },
+ {
+ .name = "DCDC3",
+ },
+ {
+ .name = "DCDC4",
+ },
+};
+
+struct zx234290_reg {
+ struct regulator_desc desc[ZX234290_NUM_REGULATOR];
+ struct zx234290 *mfd;
+ struct regulator_dev *rdev[ZX234290_NUM_REGULATOR];
+ struct zx_info *info[ZX234290_NUM_REGULATOR];
+ /* for read/write access */
+ struct mutex io_lock;
+ int mode;
+ int (*get_ctrl_reg)(int);
+ int normal_mode_reg;
+ int sleep_mode_reg;
+};
+
+
+/* LDO output enable mask */
+#define ZX234290_EN1_LDO1_EN BIT(0)
+#define ZX234290_EN1_LDO2_EN BIT(1)
+#define ZX234290_EN1_LDO3_EN BIT(2)
+#define ZX234290_EN1_LDO4_EN BIT(3)
+#define ZX234290_EN1_LDO5_EN BIT(4)
+#define ZX234290_EN1_LDO6_EN BIT(5)
+#define ZX234290_EN1_LDO7_EN BIT(6)
+#define ZX234290_EN1_LDO8_EN BIT(7)
+
+#define ZX234290_EN2_LDO9_EN BIT(0)
+#define ZX234290_EN2_LDO10_EN BIT(1)
+#define ZX234290_EN2_LDO11_EN BIT(2)
+#define ZX234290_EN2_BUCK0_EN BIT(3)
+#define ZX234290_EN2_BUCK1_EN BIT(4)
+#define ZX234290_EN2_BUCK2_EN BIT(5)
+#define ZX234290_EN2_BUCK3_EN BIT(6)
+#define ZX234290_EN2_BUCK4_EN BIT(7)
+
+
+#if 1
+static const int ldo5_voltage_map[] = {
+ 3300,
+};
+
+/* VLA - ldo1/2/3/10 */
+static const int ldoa_voltage_map[] = {
+ 0, 800, 850, 900, 950, 1000, 1050, 1100,
+ 1200, 1500, 1800, 2000, 2500, 2800, 3000, 3300,
+};
+
+/* VLB - VCOIN 2bit */
+static const int ldob_voltage_map[] = {
+ 1800, 2500, 3000, 3300,
+};
+
+/* VLAC - ldo11 */
+static const int ldoc_voltage_map[] = {
+ 0, 800, 825, 850, 875, 900, 925, 950,
+ 975, 1000, 1025, 1050, 1075, 1100, 1800, 2800,
+};
+
+/* VLD - ldo4/6/7/8/9 */
+static const int ldod_voltage_map[] = {
+ 0, 1500, 1600, 1800, 1850, 2000, 2005, 2500,
+ 2550, 2700, 2750, 2800, 2850, 2900, 2950, 3000,
+};
+
+/* VBA - BUCK0/1 5bit 0x1f */
+static const int bucka_voltage_map[] = {
+ 0, 700, 725, 750, 775, 800, 825, 850,
+ 875, 900, 925, 950, 975, 1000, 1025, 1050,
+ 1075, 1100, 1125, 1150, 1175, 1200, 1225, 1250,
+ 1250, 1250, 1250, 1250, 1250, 1250, 1250, 1250,
+};
+
+/* VBC - BUCK2 4bit 0x0f 0000 1111 */
+static const int buckc_voltage_map[] = {
+ 0, 900, 950, 1000, 1050, 1100,
+ 1150, 1200, 1250, 1300, 1350, 1400,
+ 1450, 1500, 1550, 1600,
+};
+
+/* VBD-BUCK3 */
+static const int buck3_voltage_map[] = {
+ 1600,
+};
+
+/* VBE-BUCK4 */
+static const int buck4_voltage_map[] = {
+ 3600,
+};
+
+/* BUCK3/4 EXTERNAL ADJUSTABLE */
+/* LDO5- FIXED */
+/* VLA-ldo1/2/3/10 VLB-VCOIN-2bit VLAC-ldo11 VLD-ldo4/6/7/8/9 */
+static const int *ldo_voltage_map[] = {
+ ldoa_voltage_map, /* ldo1 */
+ ldoa_voltage_map,
+ ldoa_voltage_map, /* ldo3 */
+ ldod_voltage_map, /* ldo4 */
+ ldo5_voltage_map, /* ldo5 */
+ ldod_voltage_map, /* ldo6 */
+ ldod_voltage_map,
+ ldod_voltage_map,
+ ldod_voltage_map, /* ldo9 */
+ ldoa_voltage_map, /* ldo10 */
+ ldoc_voltage_map, /* ldo11 */
+ ldob_voltage_map, /* coin */
+};
+
+/* VBA-BUCK0/1 VBC-BUCK2 EXTERNAL ADJUSTABLE-BUCK3/4 */
+static const int *buck_voltage_map[] = {
+ bucka_voltage_map, /* buck0 */
+ bucka_voltage_map, /* buck1 */
+ buckc_voltage_map, /* buck2 */
+ buck3_voltage_map, /* buck3 */
+ buck4_voltage_map, /* buck4 */
+};
+
+#if 1
+static const int ldo_output_enable_mask[] = {
+ ZX234290_EN1_LDO1_EN,
+ ZX234290_EN1_LDO2_EN,
+ ZX234290_EN1_LDO3_EN,
+ ZX234290_EN1_LDO4_EN,
+ ZX234290_EN1_LDO5_EN,
+ ZX234290_EN1_LDO6_EN,
+ ZX234290_EN1_LDO7_EN,
+ ZX234290_EN1_LDO8_EN,
+
+ ZX234290_EN2_LDO9_EN,
+ ZX234290_EN2_LDO10_EN,
+ ZX234290_EN2_LDO11_EN,
+ ZX234290_EN2_BUCK0_EN,
+ ZX234290_EN2_BUCK1_EN,
+ ZX234290_EN2_BUCK2_EN,
+ ZX234290_EN2_BUCK3_EN,
+ ZX234290_EN2_BUCK4_EN,
+};
+
+/* ²»ÓøÃÊý×é ÓÃÄǸöº¯Êý zx234290_get_ctrl_register */
+static const int ldo_output_enable_addr[] = {
+ ZX234290_REG_ADDR_LDO_EN1,
+ ZX234290_REG_ADDR_LDO_EN2,
+};
+#endif
+
+#endif
+
+#define ZX234290_COIN_VOL_MASK 0x02
+
+#define ZX234290_LDO_VOL_VALUE_MAP(x) (ldo_voltage_map[x])
+#define ZX234290_LDO_VOL_MASK(x) (((x) % 2) ? 0xf0 : 0x0f)
+
+/* enable */
+#define ZX234290_LDO_OUTPUT_ENABLE_MASK(x) (ldo_output_enable_mask[x])
+
+#define ZX234290_BUCK_VOL_VALUE_MAP(x) (buck_voltage_map[x])
+#define ZX234290_BUCK_VOL_MASK(x) (((x) != 13) ? 0x1f : 0x0f) /* 0001 1111 or 0000 1111 */
+
+/* ͨ¹ýLDO id »ñÈ¡¸ÃLDOµÄ ʹÄÜ ¼Ä´æÆ÷ */
+static int zx234290_get_ctrl_register(int id)
+{
+ if (id >= ZX234290_REG_LDO1 && id <= ZX234290_REG_LDO8)
+ return ZX234290_REG_ADDR_LDO_EN1;
+ else if (id >= ZX234290_REG_LDO9 && id <= ZX234290_REG_DCDC4)
+ return ZX234290_REG_ADDR_LDO_EN2;
+ else
+ return -EINVAL;
+}
+
+/* Ñ¡ÔñµçѹÉèÖüĴæÆ÷*/
+static int zx234290_get_sel_register(struct zx234290_reg *pmic, int id)
+{
+ u8 reg = 0;
+
+ switch(id) {
+ case ZX234290_REG_DCDC0: /* 0x1f */
+ reg = ZX234290_REG_ADDR_BUCK0_VOL;
+ case ZX234290_REG_DCDC1: /* 0x1f */
+ reg = ZX234290_REG_ADDR_BUCK1_VOL;
+ break;
+ case ZX234290_REG_DCDC2: /* 0x0f */
+ reg = ZX234290_REG_ADDR_BUCK2_VOL;
+ break;
+ case ZX234290_REG_LDO1: /* 0x0f */
+ case ZX234290_REG_LDO2: /* 0xf0 */
+ reg = ZX234290_REG_ADDR_LDO12_VOL;
+ break;
+ case ZX234290_REG_LDO3: /* 0x0f */
+ case ZX234290_REG_LDO4: /* 0xf0 */
+ reg = ZX234290_REG_ADDR_LDO34_VOL;
+ break;
+ case ZX234290_REG_LDO6: /* 0xf0 */
+ reg = ZX234290_REG_ADDR_LDO6_VOL;
+ break;
+ case ZX234290_REG_LDO7: /* 0x0f */
+ case ZX234290_REG_LDO8: /* 0xf0 */
+ reg = ZX234290_REG_ADDR_LDO78_VOL;
+ break;
+ case ZX234290_REG_LDO9: /* 0x0f */
+ case ZX234290_REG_LDO10: /* 0xf0 */
+ reg = ZX234290_REG_ADDR_LDO910_VOL;
+ break;
+ case ZX234290_REG_LDO11: /* 0xf0 */
+ reg = ZX234290_REG_ADDR_LDO11_VOL;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return reg;
+}
+
+static int zx234290_get_mode_regiters(struct zx234290_reg *pmic, int id)
+{
+ switch (id) {
+ case ZX234290_REG_DCDC0:
+ case ZX234290_REG_DCDC1:
+ pmic->normal_mode_reg = ZX234290_REG_ADDR_BUCK01_MODE;/* 0x0c */
+ pmic->normal_mode_reg = ZX234290_REG_ADDR_BUCK01_MODE; /* 0x03 */
+ break;
+ case ZX234290_REG_DCDC2:
+ case ZX234290_REG_DCDC3:
+ pmic->normal_mode_reg = ZX234290_REG_ADDR_BUCK23_MODE;
+ pmic->normal_mode_reg = ZX234290_REG_ADDR_BUCK23_MODE;
+ break;
+ case ZX234290_REG_DCDC4:
+ pmic->normal_mode_reg = ZX234290_REG_ADDR_BUCK4_MODE;
+ pmic->normal_mode_reg = ZX234290_REG_ADDR_BUCK4_MODE;
+ break;
+ case ZX234290_REG_LDO1:
+ case ZX234290_REG_LDO2:
+ case ZX234290_REG_LDO3:
+ case ZX234290_REG_LDO4:
+ pmic->normal_mode_reg = ZX234290_REG_ADDR_LDO1234_MODE;
+ pmic->normal_mode_reg = ZX234290_REG_ADDR_LDO1234_MODE;
+ break;
+ case ZX234290_REG_LDO5:
+ case ZX234290_REG_LDO6:
+ case ZX234290_REG_LDO7:
+ case ZX234290_REG_LDO8:
+ pmic->normal_mode_reg = ZX234290_REG_ADDR_LDO5678_MODE;
+ pmic->normal_mode_reg = ZX234290_REG_ADDR_LDO5678_MODE;
+ break;
+ case ZX234290_REG_LDO9:
+ case ZX234290_REG_LDO10:
+ case ZX234290_REG_LDO11:
+ pmic->normal_mode_reg = ZX234290_REG_ADDR_LDO91011_MODE;
+ pmic->normal_mode_reg = ZX234290_REG_ADDR_LDO91011_MODE;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+#if 1 /* enable */
+static int zx234290_reg_is_enabled(struct regulator_dev *dev)
+{
+ struct zx234290_reg *pmic = rdev_get_drvdata(dev);
+ struct zx234290 *mfd = pmic->mfd;
+ int reg, value, id = rdev_get_id(dev);
+
+ if (id < ZX234290_REG_LDO1 || id > ZX234290_REG_DCDC4)
+ return -EINVAL;
+
+ reg = pmic->get_ctrl_reg(id);
+ if (reg < 0)
+ return reg;
+
+ value = zx234290_reg_read(mfd, reg);
+ if (value < 0)
+ return value;
+
+ return value & (ZX234290_LDO_OUTPUT_ENABLE_MASK(id));
+}
+
+static int zx234290_reg_enable(struct regulator_dev *dev)
+{
+ struct zx234290_reg *pmic = rdev_get_drvdata(dev);
+ struct zx234290 *mfd = pmic->mfd;
+ int id = rdev_get_id(dev);
+ int reg;
+
+ if (id < ZX234290_REG_LDO1 || id > ZX234290_REG_DCDC4)
+ return -EINVAL;
+
+ /* »ñȡʹÄܼĴæÆ÷ */
+ reg = pmic->get_ctrl_reg(id);
+ if (reg < 0)
+ return reg;
+
+ /* ¶Ô ZX234290_REG_ENABLED 1000 0000 ¸ßλ Öà 1 */
+ return zx234290_set_bits(mfd, reg, ZX234290_LDO_OUTPUT_ENABLE_MASK(id));
+}
+
+static int zx234290_reg_disable(struct regulator_dev *dev)
+{
+ struct zx234290_reg *pmic = rdev_get_drvdata(dev);
+ struct zx234290 *mfd = pmic->mfd;
+ int id = rdev_get_id(dev), reg;
+
+ reg = pmic->get_ctrl_reg(id);
+ if (reg < 0)
+ return reg;
+
+ return zx234290_clear_bits(mfd, reg, ZX234290_LDO_OUTPUT_ENABLE_MASK(id));
+}
+#endif
+
+static int zx234290_set_voltage_sel(struct regulator_dev *dev,
+ unsigned selector)
+{
+ struct zx234290_reg *pmic = rdev_get_drvdata(dev);
+ struct zx234290 *mfd = pmic->mfd;
+ int id = rdev_get_id(dev);
+ int value;
+ u8 reg;
+
+ reg = zx234290_get_sel_register(pmic, id);
+ value = zx234290_reg_read(mfd, reg);
+
+ if (id >= ZX234290_REG_LDO1 && id <= ZX234290_REG_LDO11 && id != ZX234290_REG_LDO5)
+ {
+ value &= ~(ZX234290_LDO_VOL_MASK(id));
+ if (id%2)selector *=16; /* leftshit 5bits */
+ }
+ else if (id >= ZX234290_REG_DCDC1 && id <= ZX234290_REG_DCDC2)
+ value &= ~(ZX234290_BUCK_VOL_MASK(id));
+ else
+ return -EINVAL;
+
+ return zx234290_reg_write(mfd, reg, selector | value);
+}
+
+
+
+#if 1
+static int zx234290_ldo_list_voltage(struct regulator_dev *dev, unsigned selector)
+{
+ int ldo = rdev_get_id(dev) - ZX234290_REG_LDO1;
+ return 1000 * ZX234290_LDO_VOL_VALUE_MAP(ldo)[selector];
+}
+
+static int zx234290_ldo_get_voltage(struct regulator_dev *dev)
+{
+ struct zx234290_reg *pmic = rdev_get_drvdata(dev);
+ struct zx234290 *mfd = pmic->mfd;
+ int id = rdev_get_id(dev);
+ int reg, vsel;
+
+ /* Ñ¡ÔñµçѹÉèÖüĴæÆ÷ */
+ reg = zx234290_get_sel_register(pmic, id);
+ if (reg < 0)
+ return reg;
+
+ /* ¶ÁÈ¡µçѹ */
+ vsel = zx234290_reg_read(mfd, reg);
+ vsel &= ZX234290_LDO_VOL_MASK(id); /* 0000 1111 */
+ /* ldo2/4/6/8/10 ¸ß4λ */
+ if(id%2)
+ vsel/=16;
+
+ /* »ñÈ¡vsel slector ¼´µçѹµÄÐòÁÐ È»ºóͨ¹ýlist·µ»Øµçѹ */
+ return zx234290_ldo_list_voltage(dev, vsel);
+}
+
+/* Operations permitted on LDOx */
+static struct regulator_ops zx234290_ops_ldo = {
+ .is_enabled = zx234290_reg_is_enabled,
+ .enable = zx234290_reg_enable,
+ .disable = zx234290_reg_disable,
+ .get_voltage = zx234290_ldo_get_voltage,
+ .set_voltage_sel = zx234290_set_voltage_sel,
+ .list_voltage = zx234290_ldo_list_voltage,
+};
+#endif
+
+
+
+#if 1
+static int zx234290_dcdc_list_voltage(struct regulator_dev *dev, unsigned index)
+{
+ int buck = rdev_get_id(dev) - ZX234290_REG_DCDC0;
+ return 1000 * buck_voltage_map[buck][index];
+}
+
+#if 0
+static int zx234290_set_mode(struct regulator_dev *dev, unsigned int mode)
+{
+ struct zx234290_reg *pmic = rdev_get_drvdata(dev);
+ struct zx234290 *mfd = pmic->mfd;
+ int normal_mode, sleep_mode, id = rdev_get_id(dev);
+
+ zx234290_get_mode_regiters(pmic, id);
+
+ normal_mode = zx234290_reg_read(mfd, pmic->normal_mode_reg);
+ sleep_mode = zx234290_reg_read(mfd, pmic->sleep_mode_reg);
+
+ normal_mode &= DCDCCTRL_DCDC_MODE_MASK;
+ sleep_mode &= DCDC_AVS_ECO_MASK;
+
+ switch (mode) {
+ case REGULATOR_MODE_FAST:
+ /* Verify if mode alredy set */
+ if (normal_mode && !sleep_mode)
+ break;
+ zx234290_set_bits(mfd, pmic->normal_mode, DCDCCTRL_DCDC_MODE_MASK);
+ zx234290_clear_bits(mfd, pmic->eco_reg, DCDC_AVS_ECO_MASK);
+ break;
+ case REGULATOR_MODE_NORMAL:
+ case REGULATOR_MODE_IDLE:
+ if (!normal_mode && !sleep_mode)
+ break;
+ zx234290_clear_bits(mfd, pmic->normal_mode, DCDCCTRL_DCDC_MODE_MASK);
+ zx234290_clear_bits(mfd, pmic->eco_reg, DCDC_AVS_ECO_MASK);
+ break;
+ case REGULATOR_MODE_STANDBY:
+ if (!normal_mode && sleep_mode)
+ break;
+ zx234290_clear_bits(mfd, pmic->normal_mode, DCDCCTRL_DCDC_MODE_MASK);
+ zx234290_set_bits(mfd, pmic->eco_reg, DCDC_AVS_ECO_MASK);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static unsigned int zx234290_get_mode(struct regulator_dev *dev)
+{
+ struct zx234290_reg *pmic = rdev_get_drvdata(dev);
+ struct zx234290 *mfd = pmic->mfd;
+ int pwm_mode, eco, mode = 0, id = rdev_get_id(dev);
+
+ zx234290_get_mode_regiters(pmic, id);
+
+ pwm_mode = zx234290_reg_read(mfd, pmic->normal_mode_reg);
+ eco = zx234290_reg_read(mfd, pmic->sleep_mode_reg);
+
+ pwm_mode &= DCDCCTRL_DCDC_MODE_MASK;
+ eco &= DCDC_AVS_ECO_MASK;
+
+ if (pwm_mode && !eco)
+ mode = REGULATOR_MODE_FAST;
+ else if (!pwm_mode && !eco)
+ mode = REGULATOR_MODE_NORMAL;
+ else if (!pwm_mode && eco)
+ mode = REGULATOR_MODE_STANDBY;
+
+ return mode;
+}
+#endif
+
+static int zx234290_dcdc_get_voltage(struct regulator_dev *dev)
+{
+ struct zx234290_reg *pmic = rdev_get_drvdata(dev);
+ struct zx234290 *mfd = pmic->mfd;
+ int id = rdev_get_id(dev);
+ int reg, vsel;
+
+ /* Ñ¡ÔñµçѹÉèÖüĴæÆ÷ */
+ reg = zx234290_get_sel_register(pmic, id);
+ if (reg < 0)
+ return reg;
+
+ /* ¶ÁÈ¡µçѹ */
+ vsel = zx234290_reg_read(mfd, reg);
+ vsel &= ZX234290_BUCK_VOL_MASK(id); /* 0001 1111 */
+
+ /* »ñÈ¡vsel slector ¼´µçѹµÄÐòÁÐ È»ºóͨ¹ýlist·µ»Øµçѹ */
+ return zx234290_dcdc_list_voltage(dev, vsel);
+}
+
+/* Operations permitted on DCDCx */
+static struct regulator_ops zx234290_ops_dcdc = {
+ .is_enabled = zx234290_reg_is_enabled,
+ .enable = zx234290_reg_enable,
+ .disable = zx234290_reg_disable,
+/* .set_mode = zx234290_set_mode,
+ .get_mode = zx234290_get_mode,
+*/ .get_voltage = zx234290_dcdc_get_voltage,
+ .set_voltage_sel = zx234290_set_voltage_sel,
+ .list_voltage = zx234290_dcdc_list_voltage,
+};
+#endif
+
+static __devinit int zx234290_probe(struct platform_device *pdev)
+{
+ struct zx234290 *zx234290 = dev_get_drvdata(pdev->dev.parent);
+ struct zx_info *info;
+ struct regulator_init_data *reg_data;
+ struct regulator_dev *rdev;
+ struct zx234290_reg *pmic;
+ struct zx234290_board *pmic_plat_data;
+ struct zx234290_platform_data *zx234290_plat_data;
+
+ int i, err;
+
+ pr_info("%s hello \n", __func__);
+
+ pmic_plat_data = dev_get_platdata(pdev->dev.parent);
+ if (!pmic_plat_data)
+ return -EINVAL;
+
+ pmic = kzalloc(sizeof(*pmic), GFP_KERNEL);
+ if (!pmic)
+ return -ENOMEM;
+
+ mutex_init(&pmic->io_lock);
+ pmic->mfd = zx234290;
+ platform_set_drvdata(pdev, pmic);
+
+ pmic->get_ctrl_reg = &zx234290_get_ctrl_register;
+ info = zx234290_regs;
+
+#if 1
+ pmic->desc[0].n_voltages = // 1/2/3/10
+ pmic->desc[1].n_voltages =
+ pmic->desc[2].n_voltages =
+ pmic->desc[9].n_voltages = ARRAY_SIZE(ldoa_voltage_map);
+ pmic->desc[3].n_voltages =
+ pmic->desc[5].n_voltages =
+ pmic->desc[6].n_voltages =
+ pmic->desc[7].n_voltages =
+ pmic->desc[8].n_voltages = ARRAY_SIZE(ldod_voltage_map); // 4/6/7/8/9
+ pmic->desc[10].n_voltages = ARRAY_SIZE(ldoc_voltage_map); // 11
+ pmic->desc[11].n_voltages =
+ pmic->desc[12].n_voltages = ARRAY_SIZE(bucka_voltage_map); // buck0/1
+ pmic->desc[13].n_voltages = ARRAY_SIZE(buckc_voltage_map); // buck2
+ pmic->desc[4].n_voltages =
+ pmic->desc[14].n_voltages =
+ pmic->desc[15].n_voltages = 1;
+#endif
+
+
+ for (i = 0; i < ZX234290_NUM_REGULATOR; i++, info++) {
+ /* Register the regulators */
+ pmic->info[i] = info;
+ pmic->desc[i].name = info->name;
+ pmic->desc[i].id = i;
+ pmic->desc[i].ops = (i > ZX234290_REG_LDO11 ?
+ &zx234290_ops_dcdc : &zx234290_ops_ldo);
+ pmic->desc[i].type = REGULATOR_VOLTAGE;
+ pmic->desc[i].owner = THIS_MODULE;
+
+ zx234290_plat_data= pmic_plat_data->regulator_pdata[i];
+ reg_data = zx234290_plat_data->reg_init_data;
+
+ rdev = regulator_register(&pmic->desc[i],
+ zx234290->dev, reg_data, pmic, NULL);
+
+
+ if (IS_ERR(rdev)) {
+ dev_err(zx234290->dev,
+ "failed to register %s regulator\n",
+ pdev->name);
+ err = PTR_ERR(rdev);
+ goto err;
+ }
+
+ /* Save regulator for cleanup */
+ pmic->rdev[i] = rdev;
+ }
+ return 0;
+
+err:
+ while (--i >= 0)
+ regulator_unregister(pmic->rdev[i]);
+
+ kfree(pmic);
+ return err;
+}
+
+static int __devexit zx234290_remove(struct platform_device *pdev)
+{
+ struct zx234290_reg *zx234290_reg = platform_get_drvdata(pdev);
+ int i;
+
+ for (i = 0; i < ZX234290_NUM_REGULATOR; i++)
+ regulator_unregister(zx234290_reg->rdev[i]);
+
+ kfree(zx234290_reg);
+ return 0;
+}
+
+static struct platform_driver zx234290_driver = {
+ .driver = {
+ .name = "zx234290-regulators",
+ .owner = THIS_MODULE,
+ },
+ .probe = zx234290_probe,
+ .remove = __devexit_p(zx234290_remove),
+};
+
+static int __init zx234290_init(void)
+{
+ pr_info("%s hello\n", __func__);
+ return platform_driver_register(&zx234290_driver);
+}
+subsys_initcall(zx234290_init);
+
+static void __exit zx234290_cleanup(void)
+{
+ platform_driver_unregister(&zx234290_driver);
+}
+module_exit(zx234290_cleanup);
+
+MODULE_AUTHOR("DongJian");
+MODULE_DESCRIPTION("ZX234290 voltage regulator driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:zx234290-regulator");