[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/gpio/gpio-palmas.c b/src/kernel/linux/v4.14/drivers/gpio/gpio-palmas.c
new file mode 100644
index 0000000..3d81819
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/gpio/gpio-palmas.c
@@ -0,0 +1,218 @@
+/*
+ * TI Palma series PMIC's GPIO driver.
+ *
+ * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
+ *
+ * Author: Laxman Dewangan <ldewangan@nvidia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/gpio.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/mfd/palmas.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+
+struct palmas_gpio {
+ struct gpio_chip gpio_chip;
+ struct palmas *palmas;
+};
+
+struct palmas_device_data {
+ int ngpio;
+};
+
+static int palmas_gpio_get(struct gpio_chip *gc, unsigned offset)
+{
+ struct palmas_gpio *pg = gpiochip_get_data(gc);
+ struct palmas *palmas = pg->palmas;
+ unsigned int val;
+ int ret;
+ unsigned int reg;
+ int gpio16 = (offset/8);
+
+ offset %= 8;
+ reg = (gpio16) ? PALMAS_GPIO_DATA_DIR2 : PALMAS_GPIO_DATA_DIR;
+
+ ret = palmas_read(palmas, PALMAS_GPIO_BASE, reg, &val);
+ if (ret < 0) {
+ dev_err(gc->parent, "Reg 0x%02x read failed, %d\n", reg, ret);
+ return ret;
+ }
+
+ if (val & BIT(offset))
+ reg = (gpio16) ? PALMAS_GPIO_DATA_OUT2 : PALMAS_GPIO_DATA_OUT;
+ else
+ reg = (gpio16) ? PALMAS_GPIO_DATA_IN2 : PALMAS_GPIO_DATA_IN;
+
+ ret = palmas_read(palmas, PALMAS_GPIO_BASE, reg, &val);
+ if (ret < 0) {
+ dev_err(gc->parent, "Reg 0x%02x read failed, %d\n", reg, ret);
+ return ret;
+ }
+ return !!(val & BIT(offset));
+}
+
+static void palmas_gpio_set(struct gpio_chip *gc, unsigned offset,
+ int value)
+{
+ struct palmas_gpio *pg = gpiochip_get_data(gc);
+ struct palmas *palmas = pg->palmas;
+ int ret;
+ unsigned int reg;
+ int gpio16 = (offset/8);
+
+ offset %= 8;
+ if (gpio16)
+ reg = (value) ?
+ PALMAS_GPIO_SET_DATA_OUT2 : PALMAS_GPIO_CLEAR_DATA_OUT2;
+ else
+ reg = (value) ?
+ PALMAS_GPIO_SET_DATA_OUT : PALMAS_GPIO_CLEAR_DATA_OUT;
+
+ ret = palmas_write(palmas, PALMAS_GPIO_BASE, reg, BIT(offset));
+ if (ret < 0)
+ dev_err(gc->parent, "Reg 0x%02x write failed, %d\n", reg, ret);
+}
+
+static int palmas_gpio_output(struct gpio_chip *gc, unsigned offset,
+ int value)
+{
+ struct palmas_gpio *pg = gpiochip_get_data(gc);
+ struct palmas *palmas = pg->palmas;
+ int ret;
+ unsigned int reg;
+ int gpio16 = (offset/8);
+
+ offset %= 8;
+ reg = (gpio16) ? PALMAS_GPIO_DATA_DIR2 : PALMAS_GPIO_DATA_DIR;
+
+ /* Set the initial value */
+ palmas_gpio_set(gc, offset, value);
+
+ ret = palmas_update_bits(palmas, PALMAS_GPIO_BASE, reg,
+ BIT(offset), BIT(offset));
+ if (ret < 0)
+ dev_err(gc->parent, "Reg 0x%02x update failed, %d\n", reg,
+ ret);
+ return ret;
+}
+
+static int palmas_gpio_input(struct gpio_chip *gc, unsigned offset)
+{
+ struct palmas_gpio *pg = gpiochip_get_data(gc);
+ struct palmas *palmas = pg->palmas;
+ int ret;
+ unsigned int reg;
+ int gpio16 = (offset/8);
+
+ offset %= 8;
+ reg = (gpio16) ? PALMAS_GPIO_DATA_DIR2 : PALMAS_GPIO_DATA_DIR;
+
+ ret = palmas_update_bits(palmas, PALMAS_GPIO_BASE, reg, BIT(offset), 0);
+ if (ret < 0)
+ dev_err(gc->parent, "Reg 0x%02x update failed, %d\n", reg,
+ ret);
+ return ret;
+}
+
+static int palmas_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
+{
+ struct palmas_gpio *pg = gpiochip_get_data(gc);
+ struct palmas *palmas = pg->palmas;
+
+ return palmas_irq_get_virq(palmas, PALMAS_GPIO_0_IRQ + offset);
+}
+
+static const struct palmas_device_data palmas_dev_data = {
+ .ngpio = 8,
+};
+
+static const struct palmas_device_data tps80036_dev_data = {
+ .ngpio = 16,
+};
+
+static const struct of_device_id of_palmas_gpio_match[] = {
+ { .compatible = "ti,palmas-gpio", .data = &palmas_dev_data,},
+ { .compatible = "ti,tps65913-gpio", .data = &palmas_dev_data,},
+ { .compatible = "ti,tps65914-gpio", .data = &palmas_dev_data,},
+ { .compatible = "ti,tps80036-gpio", .data = &tps80036_dev_data,},
+ { },
+};
+
+static int palmas_gpio_probe(struct platform_device *pdev)
+{
+ struct palmas *palmas = dev_get_drvdata(pdev->dev.parent);
+ struct palmas_platform_data *palmas_pdata;
+ struct palmas_gpio *palmas_gpio;
+ int ret;
+ const struct of_device_id *match;
+ const struct palmas_device_data *dev_data;
+
+ match = of_match_device(of_palmas_gpio_match, &pdev->dev);
+ if (!match)
+ return -ENODEV;
+ dev_data = match->data;
+ if (!dev_data)
+ dev_data = &palmas_dev_data;
+
+ palmas_gpio = devm_kzalloc(&pdev->dev,
+ sizeof(*palmas_gpio), GFP_KERNEL);
+ if (!palmas_gpio)
+ return -ENOMEM;
+
+ palmas_gpio->palmas = palmas;
+ palmas_gpio->gpio_chip.owner = THIS_MODULE;
+ palmas_gpio->gpio_chip.label = dev_name(&pdev->dev);
+ palmas_gpio->gpio_chip.ngpio = dev_data->ngpio;
+ palmas_gpio->gpio_chip.can_sleep = true;
+ palmas_gpio->gpio_chip.direction_input = palmas_gpio_input;
+ palmas_gpio->gpio_chip.direction_output = palmas_gpio_output;
+ palmas_gpio->gpio_chip.to_irq = palmas_gpio_to_irq;
+ palmas_gpio->gpio_chip.set = palmas_gpio_set;
+ palmas_gpio->gpio_chip.get = palmas_gpio_get;
+ palmas_gpio->gpio_chip.parent = &pdev->dev;
+#ifdef CONFIG_OF_GPIO
+ palmas_gpio->gpio_chip.of_node = pdev->dev.of_node;
+#endif
+ palmas_pdata = dev_get_platdata(palmas->dev);
+ if (palmas_pdata && palmas_pdata->gpio_base)
+ palmas_gpio->gpio_chip.base = palmas_pdata->gpio_base;
+ else
+ palmas_gpio->gpio_chip.base = -1;
+
+ ret = devm_gpiochip_add_data(&pdev->dev, &palmas_gpio->gpio_chip,
+ palmas_gpio);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Could not register gpiochip, %d\n", ret);
+ return ret;
+ }
+
+ platform_set_drvdata(pdev, palmas_gpio);
+ return ret;
+}
+
+static struct platform_driver palmas_gpio_driver = {
+ .driver.name = "palmas-gpio",
+ .driver.of_match_table = of_palmas_gpio_match,
+ .probe = palmas_gpio_probe,
+};
+
+static int __init palmas_gpio_init(void)
+{
+ return platform_driver_register(&palmas_gpio_driver);
+}
+subsys_initcall(palmas_gpio_init);