[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/hwmon/emc1403.c b/src/kernel/linux/v4.14/drivers/hwmon/emc1403.c
new file mode 100644
index 0000000..1ea7ca5
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/hwmon/emc1403.c
@@ -0,0 +1,499 @@
+/*
+ * emc1403.c - SMSC Thermal Driver
+ *
+ * Copyright (C) 2008 Intel Corp
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * 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.
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/err.h>
+#include <linux/sysfs.h>
+#include <linux/mutex.h>
+#include <linux/regmap.h>
+
+#define THERMAL_PID_REG 0xfd
+#define THERMAL_SMSC_ID_REG 0xfe
+#define THERMAL_REVISION_REG 0xff
+
+enum emc1403_chip { emc1402, emc1403, emc1404 };
+
+struct thermal_data {
+ struct regmap *regmap;
+ struct mutex mutex;
+ const struct attribute_group *groups[4];
+};
+
+static ssize_t show_temp(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
+ struct thermal_data *data = dev_get_drvdata(dev);
+ unsigned int val;
+ int retval;
+
+ retval = regmap_read(data->regmap, sda->index, &val);
+ if (retval < 0)
+ return retval;
+ return sprintf(buf, "%d000\n", val);
+}
+
+static ssize_t show_bit(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct sensor_device_attribute_2 *sda = to_sensor_dev_attr_2(attr);
+ struct thermal_data *data = dev_get_drvdata(dev);
+ unsigned int val;
+ int retval;
+
+ retval = regmap_read(data->regmap, sda->nr, &val);
+ if (retval < 0)
+ return retval;
+ return sprintf(buf, "%d\n", !!(val & sda->index));
+}
+
+static ssize_t store_temp(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
+ struct thermal_data *data = dev_get_drvdata(dev);
+ unsigned long val;
+ int retval;
+
+ if (kstrtoul(buf, 10, &val))
+ return -EINVAL;
+ retval = regmap_write(data->regmap, sda->index,
+ DIV_ROUND_CLOSEST(val, 1000));
+ if (retval < 0)
+ return retval;
+ return count;
+}
+
+static ssize_t store_bit(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct sensor_device_attribute_2 *sda = to_sensor_dev_attr_2(attr);
+ struct thermal_data *data = dev_get_drvdata(dev);
+ unsigned long val;
+ int retval;
+
+ if (kstrtoul(buf, 10, &val))
+ return -EINVAL;
+
+ retval = regmap_update_bits(data->regmap, sda->nr, sda->index,
+ val ? sda->index : 0);
+ if (retval < 0)
+ return retval;
+ return count;
+}
+
+static ssize_t show_hyst_common(struct device *dev,
+ struct device_attribute *attr, char *buf,
+ bool is_min)
+{
+ struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
+ struct thermal_data *data = dev_get_drvdata(dev);
+ struct regmap *regmap = data->regmap;
+ unsigned int limit;
+ unsigned int hyst;
+ int retval;
+
+ retval = regmap_read(regmap, sda->index, &limit);
+ if (retval < 0)
+ return retval;
+
+ retval = regmap_read(regmap, 0x21, &hyst);
+ if (retval < 0)
+ return retval;
+
+ return sprintf(buf, "%d000\n", is_min ? limit + hyst : limit - hyst);
+}
+
+static ssize_t show_hyst(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return show_hyst_common(dev, attr, buf, false);
+}
+
+static ssize_t show_min_hyst(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return show_hyst_common(dev, attr, buf, true);
+}
+
+static ssize_t store_hyst(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
+ struct thermal_data *data = dev_get_drvdata(dev);
+ struct regmap *regmap = data->regmap;
+ unsigned int limit;
+ int retval;
+ int hyst;
+ unsigned long val;
+
+ if (kstrtoul(buf, 10, &val))
+ return -EINVAL;
+
+ mutex_lock(&data->mutex);
+ retval = regmap_read(regmap, sda->index, &limit);
+ if (retval < 0)
+ goto fail;
+
+ hyst = limit * 1000 - val;
+ hyst = clamp_val(DIV_ROUND_CLOSEST(hyst, 1000), 0, 255);
+ retval = regmap_write(regmap, 0x21, hyst);
+ if (retval == 0)
+ retval = count;
+fail:
+ mutex_unlock(&data->mutex);
+ return retval;
+}
+
+/*
+ * Sensors. We pass the actual i2c register to the methods.
+ */
+
+static SENSOR_DEVICE_ATTR(temp1_min, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x06);
+static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x05);
+static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x20);
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0x00);
+static SENSOR_DEVICE_ATTR_2(temp1_min_alarm, S_IRUGO,
+ show_bit, NULL, 0x36, 0x01);
+static SENSOR_DEVICE_ATTR_2(temp1_max_alarm, S_IRUGO,
+ show_bit, NULL, 0x35, 0x01);
+static SENSOR_DEVICE_ATTR_2(temp1_crit_alarm, S_IRUGO,
+ show_bit, NULL, 0x37, 0x01);
+static SENSOR_DEVICE_ATTR(temp1_min_hyst, S_IRUGO, show_min_hyst, NULL, 0x06);
+static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_hyst, NULL, 0x05);
+static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO | S_IWUSR,
+ show_hyst, store_hyst, 0x20);
+
+static SENSOR_DEVICE_ATTR(temp2_min, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x08);
+static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x07);
+static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x19);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 0x01);
+static SENSOR_DEVICE_ATTR_2(temp2_fault, S_IRUGO, show_bit, NULL, 0x1b, 0x02);
+static SENSOR_DEVICE_ATTR_2(temp2_min_alarm, S_IRUGO,
+ show_bit, NULL, 0x36, 0x02);
+static SENSOR_DEVICE_ATTR_2(temp2_max_alarm, S_IRUGO,
+ show_bit, NULL, 0x35, 0x02);
+static SENSOR_DEVICE_ATTR_2(temp2_crit_alarm, S_IRUGO,
+ show_bit, NULL, 0x37, 0x02);
+static SENSOR_DEVICE_ATTR(temp2_min_hyst, S_IRUGO, show_min_hyst, NULL, 0x08);
+static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO, show_hyst, NULL, 0x07);
+static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IRUGO, show_hyst, NULL, 0x19);
+
+static SENSOR_DEVICE_ATTR(temp3_min, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x16);
+static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x15);
+static SENSOR_DEVICE_ATTR(temp3_crit, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x1A);
+static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 0x23);
+static SENSOR_DEVICE_ATTR_2(temp3_fault, S_IRUGO, show_bit, NULL, 0x1b, 0x04);
+static SENSOR_DEVICE_ATTR_2(temp3_min_alarm, S_IRUGO,
+ show_bit, NULL, 0x36, 0x04);
+static SENSOR_DEVICE_ATTR_2(temp3_max_alarm, S_IRUGO,
+ show_bit, NULL, 0x35, 0x04);
+static SENSOR_DEVICE_ATTR_2(temp3_crit_alarm, S_IRUGO,
+ show_bit, NULL, 0x37, 0x04);
+static SENSOR_DEVICE_ATTR(temp3_min_hyst, S_IRUGO, show_min_hyst, NULL, 0x16);
+static SENSOR_DEVICE_ATTR(temp3_max_hyst, S_IRUGO, show_hyst, NULL, 0x15);
+static SENSOR_DEVICE_ATTR(temp3_crit_hyst, S_IRUGO, show_hyst, NULL, 0x1A);
+
+static SENSOR_DEVICE_ATTR(temp4_min, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x2D);
+static SENSOR_DEVICE_ATTR(temp4_max, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x2C);
+static SENSOR_DEVICE_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
+ show_temp, store_temp, 0x30);
+static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 0x2A);
+static SENSOR_DEVICE_ATTR_2(temp4_fault, S_IRUGO, show_bit, NULL, 0x1b, 0x08);
+static SENSOR_DEVICE_ATTR_2(temp4_min_alarm, S_IRUGO,
+ show_bit, NULL, 0x36, 0x08);
+static SENSOR_DEVICE_ATTR_2(temp4_max_alarm, S_IRUGO,
+ show_bit, NULL, 0x35, 0x08);
+static SENSOR_DEVICE_ATTR_2(temp4_crit_alarm, S_IRUGO,
+ show_bit, NULL, 0x37, 0x08);
+static SENSOR_DEVICE_ATTR(temp4_min_hyst, S_IRUGO, show_min_hyst, NULL, 0x2D);
+static SENSOR_DEVICE_ATTR(temp4_max_hyst, S_IRUGO, show_hyst, NULL, 0x2C);
+static SENSOR_DEVICE_ATTR(temp4_crit_hyst, S_IRUGO, show_hyst, NULL, 0x30);
+
+static SENSOR_DEVICE_ATTR_2(power_state, S_IRUGO | S_IWUSR,
+ show_bit, store_bit, 0x03, 0x40);
+
+static struct attribute *emc1402_attrs[] = {
+ &sensor_dev_attr_temp1_min.dev_attr.attr,
+ &sensor_dev_attr_temp1_max.dev_attr.attr,
+ &sensor_dev_attr_temp1_crit.dev_attr.attr,
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
+ &sensor_dev_attr_temp1_min_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
+
+ &sensor_dev_attr_temp2_min.dev_attr.attr,
+ &sensor_dev_attr_temp2_max.dev_attr.attr,
+ &sensor_dev_attr_temp2_crit.dev_attr.attr,
+ &sensor_dev_attr_temp2_input.dev_attr.attr,
+ &sensor_dev_attr_temp2_min_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr,
+
+ &sensor_dev_attr_power_state.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group emc1402_group = {
+ .attrs = emc1402_attrs,
+};
+
+static struct attribute *emc1403_attrs[] = {
+ &sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
+
+ &sensor_dev_attr_temp2_fault.dev_attr.attr,
+ &sensor_dev_attr_temp2_min_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr,
+
+ &sensor_dev_attr_temp3_min.dev_attr.attr,
+ &sensor_dev_attr_temp3_max.dev_attr.attr,
+ &sensor_dev_attr_temp3_crit.dev_attr.attr,
+ &sensor_dev_attr_temp3_input.dev_attr.attr,
+ &sensor_dev_attr_temp3_fault.dev_attr.attr,
+ &sensor_dev_attr_temp3_min_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp3_max_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp3_min_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group emc1403_group = {
+ .attrs = emc1403_attrs,
+};
+
+static struct attribute *emc1404_attrs[] = {
+ &sensor_dev_attr_temp4_min.dev_attr.attr,
+ &sensor_dev_attr_temp4_max.dev_attr.attr,
+ &sensor_dev_attr_temp4_crit.dev_attr.attr,
+ &sensor_dev_attr_temp4_input.dev_attr.attr,
+ &sensor_dev_attr_temp4_fault.dev_attr.attr,
+ &sensor_dev_attr_temp4_min_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp4_max_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp4_crit_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp4_min_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp4_max_hyst.dev_attr.attr,
+ &sensor_dev_attr_temp4_crit_hyst.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group emc1404_group = {
+ .attrs = emc1404_attrs,
+};
+
+/*
+ * EMC14x2 uses a different register and different bits to report alarm and
+ * fault status. For simplicity, provide a separate attribute group for this
+ * chip series.
+ * Since we can not re-use the same attribute names, create a separate attribute
+ * array.
+ */
+static struct sensor_device_attribute_2 emc1402_alarms[] = {
+ SENSOR_ATTR_2(temp1_min_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x20),
+ SENSOR_ATTR_2(temp1_max_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x40),
+ SENSOR_ATTR_2(temp1_crit_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x01),
+
+ SENSOR_ATTR_2(temp2_fault, S_IRUGO, show_bit, NULL, 0x02, 0x04),
+ SENSOR_ATTR_2(temp2_min_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x08),
+ SENSOR_ATTR_2(temp2_max_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x10),
+ SENSOR_ATTR_2(temp2_crit_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x02),
+};
+
+static struct attribute *emc1402_alarm_attrs[] = {
+ &emc1402_alarms[0].dev_attr.attr,
+ &emc1402_alarms[1].dev_attr.attr,
+ &emc1402_alarms[2].dev_attr.attr,
+ &emc1402_alarms[3].dev_attr.attr,
+ &emc1402_alarms[4].dev_attr.attr,
+ &emc1402_alarms[5].dev_attr.attr,
+ &emc1402_alarms[6].dev_attr.attr,
+ NULL,
+};
+
+static const struct attribute_group emc1402_alarm_group = {
+ .attrs = emc1402_alarm_attrs,
+};
+
+static int emc1403_detect(struct i2c_client *client,
+ struct i2c_board_info *info)
+{
+ int id;
+ /* Check if thermal chip is SMSC and EMC1403 or EMC1423 */
+
+ id = i2c_smbus_read_byte_data(client, THERMAL_SMSC_ID_REG);
+ if (id != 0x5d)
+ return -ENODEV;
+
+ id = i2c_smbus_read_byte_data(client, THERMAL_PID_REG);
+ switch (id) {
+ case 0x20:
+ strlcpy(info->type, "emc1402", I2C_NAME_SIZE);
+ break;
+ case 0x21:
+ strlcpy(info->type, "emc1403", I2C_NAME_SIZE);
+ break;
+ case 0x22:
+ strlcpy(info->type, "emc1422", I2C_NAME_SIZE);
+ break;
+ case 0x23:
+ strlcpy(info->type, "emc1423", I2C_NAME_SIZE);
+ break;
+ case 0x25:
+ strlcpy(info->type, "emc1404", I2C_NAME_SIZE);
+ break;
+ case 0x27:
+ strlcpy(info->type, "emc1424", I2C_NAME_SIZE);
+ break;
+ default:
+ return -ENODEV;
+ }
+
+ id = i2c_smbus_read_byte_data(client, THERMAL_REVISION_REG);
+ if (id < 0x01 || id > 0x04)
+ return -ENODEV;
+
+ return 0;
+}
+
+static bool emc1403_regmap_is_volatile(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case 0x00: /* internal diode high byte */
+ case 0x01: /* external diode 1 high byte */
+ case 0x02: /* status */
+ case 0x10: /* external diode 1 low byte */
+ case 0x1b: /* external diode fault */
+ case 0x23: /* external diode 2 high byte */
+ case 0x24: /* external diode 2 low byte */
+ case 0x29: /* internal diode low byte */
+ case 0x2a: /* externl diode 3 high byte */
+ case 0x2b: /* external diode 3 low byte */
+ case 0x35: /* high limit status */
+ case 0x36: /* low limit status */
+ case 0x37: /* therm limit status */
+ return true;
+ default:
+ return false;
+ }
+}
+
+static const struct regmap_config emc1403_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .cache_type = REGCACHE_RBTREE,
+ .volatile_reg = emc1403_regmap_is_volatile,
+};
+
+static int emc1403_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct thermal_data *data;
+ struct device *hwmon_dev;
+
+ data = devm_kzalloc(&client->dev, sizeof(struct thermal_data),
+ GFP_KERNEL);
+ if (data == NULL)
+ return -ENOMEM;
+
+ data->regmap = devm_regmap_init_i2c(client, &emc1403_regmap_config);
+ if (IS_ERR(data->regmap))
+ return PTR_ERR(data->regmap);
+
+ mutex_init(&data->mutex);
+
+ switch (id->driver_data) {
+ case emc1404:
+ data->groups[2] = &emc1404_group;
+ case emc1403:
+ data->groups[1] = &emc1403_group;
+ case emc1402:
+ data->groups[0] = &emc1402_group;
+ }
+
+ if (id->driver_data == emc1402)
+ data->groups[1] = &emc1402_alarm_group;
+
+ hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev,
+ client->name, data,
+ data->groups);
+ if (IS_ERR(hwmon_dev))
+ return PTR_ERR(hwmon_dev);
+
+ dev_info(&client->dev, "%s Thermal chip found\n", id->name);
+ return 0;
+}
+
+static const unsigned short emc1403_address_list[] = {
+ 0x18, 0x1c, 0x29, 0x4c, 0x4d, 0x5c, I2C_CLIENT_END
+};
+
+/* Last digit of chip name indicates number of channels */
+static const struct i2c_device_id emc1403_idtable[] = {
+ { "emc1402", emc1402 },
+ { "emc1403", emc1403 },
+ { "emc1404", emc1404 },
+ { "emc1412", emc1402 },
+ { "emc1413", emc1403 },
+ { "emc1414", emc1404 },
+ { "emc1422", emc1402 },
+ { "emc1423", emc1403 },
+ { "emc1424", emc1404 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, emc1403_idtable);
+
+static struct i2c_driver sensor_emc1403 = {
+ .class = I2C_CLASS_HWMON,
+ .driver = {
+ .name = "emc1403",
+ },
+ .detect = emc1403_detect,
+ .probe = emc1403_probe,
+ .id_table = emc1403_idtable,
+ .address_list = emc1403_address_list,
+};
+
+module_i2c_driver(sensor_emc1403);
+
+MODULE_AUTHOR("Kalhan Trisal <kalhan.trisal@intel.com");
+MODULE_DESCRIPTION("emc1403 Thermal Driver");
+MODULE_LICENSE("GPL v2");