@@ -725,5 +725,11 @@ config REGULATOR_WM8994
This driver provides support for the voltage regulators on the
WM8994 CODEC.
+config REGULATOR_MT6397
+ tristate "MediaTek MT6397 PMIC"
+ depends on MFD_MT6397
+ help
+ This driver provides support for the voltage regulators on the MediaTek MT6397 PMIC.
+
endif
@@ -95,6 +95,7 @@ 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-$(CONFIG_REGULATOR_MT6397) += mt6397-regulator.o
ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG
new file mode 100644
@@ -0,0 +1,547 @@
+/*
+ * Copyright (c) 2014 MediaTek Inc.
+ * Author: Flora.Fu <flora.fu@mediatek.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.
+ */
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/regulator/mt6397-regulator.h>
+#include <linux/mfd/mt6397/core.h>
+#include <linux/mfd/mt6397/registers.h>
+
+struct mt6397_buck_conf {
+ unsigned int vosel_reg;
+ unsigned int voselon_reg;
+ unsigned int nivosel_reg;
+ unsigned int vosel_mask;
+};
+
+struct mt6397_ldo_conf {
+ unsigned int is_fixed;
+ unsigned int vosel_reg;
+ unsigned int vosel_mask;
+ unsigned int vosel_shift;
+};
+
+struct mt6397_regulator_info {
+ struct regulator_desc desc;
+ struct mt6397_buck_conf buck_conf;
+ struct mt6397_ldo_conf ldo_conf;
+ unsigned int qi;
+ unsigned int qi_mask;
+};
+
+struct mt6397_regulator_data {
+ int id;
+ const char *name;
+ struct regulator_init_data *initdata;
+ struct device_node *reg_node;
+};
+
+struct mt6397_regulator_priv {
+ struct mt6397_regulator_data *regulators;
+ unsigned int num_regulators;
+};
+
+#define MT6397_BUCK(vreg, min, max, step, volt_ranges, \
+ enreg, vosel, voselon, nivosel) \
+[MT6397_ID_##vreg] = { \
+ .desc = { \
+ .name = #vreg, \
+ .ops = &mt6397_volt_range_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = MT6397_ID_##vreg, \
+ .owner = THIS_MODULE, \
+ .n_voltages = (max - min)/step + 1, \
+ .linear_ranges = volt_ranges, \
+ .n_linear_ranges = ARRAY_SIZE(volt_ranges), \
+ .enable_reg = enreg, \
+ .enable_mask = BIT(0), \
+ }, \
+ .qi = enreg, \
+ .qi_mask = BIT(13), \
+ .buck_conf = { \
+ .vosel_reg = vosel, \
+ .voselon_reg = voselon, \
+ .nivosel_reg = nivosel, \
+ .vosel_mask = 0x7f, \
+ }, \
+}
+
+#define MT6397_BUCK_TABLE(vreg, buck_volt_table, \
+ enreg, vosel, voselon, nivosel) \
+[MT6397_ID_##vreg] = { \
+ .desc = { \
+ .name = #vreg, \
+ .ops = &mt6397_volt_table_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = MT6397_ID_##vreg, \
+ .owner = THIS_MODULE, \
+ .n_voltages = 1, \
+ .volt_table = buck_volt_table, \
+ .enable_reg = enreg, \
+ .enable_mask = BIT(0), \
+ }, \
+ .qi = enreg, \
+ .qi_mask = BIT(13), \
+ .buck_conf = { \
+ .vosel_reg = vosel, \
+ .voselon_reg = voselon, \
+ .nivosel_reg = nivosel, \
+ .vosel_mask = 0x1f, \
+ }, \
+}
+
+#define MT6397_LDO(vreg, ldo_volt_table, \
+ enreg, enbit, fixed, vosel, _vosel_mask, \
+ _vosel_shift) \
+[MT6397_ID_##vreg] = { \
+ .desc = { \
+ .name = #vreg, \
+ .ops = &mt6397_volt_table_ops, \
+ .type = REGULATOR_VOLTAGE, \
+ .id = MT6397_ID_##vreg, \
+ .owner = THIS_MODULE, \
+ .n_voltages = ARRAY_SIZE(ldo_volt_table), \
+ .volt_table = ldo_volt_table, \
+ .enable_reg = enreg, \
+ .enable_mask = BIT(enbit), \
+ }, \
+ .qi = enreg, \
+ .qi_mask = BIT(15), \
+ .ldo_conf = { \
+ .is_fixed = fixed, \
+ .vosel_reg = vosel, \
+ .vosel_mask = _vosel_mask, \
+ .vosel_shift = _vosel_shift, \
+ }, \
+}
+
+static const struct regulator_linear_range buck_volt_range1[] = {
+ REGULATOR_LINEAR_RANGE(700000, 0, 0x7f, 6250),
+};
+
+static const struct regulator_linear_range buck_volt_range2[] = {
+ REGULATOR_LINEAR_RANGE(800000, 0, 0x7f, 6250),
+};
+
+static const unsigned int fixed_1800000_voltage[] = {
+ 1800000,
+};
+
+static const unsigned int fixed_2800000_voltage[] = {
+ 2800000,
+};
+
+static const unsigned int fixed_3300000_voltage[] = {
+ 3300000,
+};
+
+static const unsigned int ldo_volt_table1[] = {
+ 1500000, 1800000, 2500000, 2800000,
+};
+
+static const unsigned int ldo_volt_table2[] = {
+ 1800000, 3300000,
+};
+
+static const unsigned int ldo_volt_table3[] = {
+ 3000000, 3300000,
+};
+
+static const unsigned int ldo_volt_table4[] = {
+ 1220000, 1300000, 1500000, 1800000, 2500000, 2800000, 3000000, 3300000,
+};
+
+static const unsigned int ldo_volt_table5[] = {
+ 1200000, 1300000, 1500000, 1800000, 2500000, 2800000, 3000000, 3300000,
+};
+
+static const unsigned int ldo_volt_table5_v2[] = {
+ 1200000, 1000000, 1500000, 1800000, 2500000, 2800000, 3000000, 3300000,
+};
+
+static const unsigned int ldo_volt_table6[] = {
+ 1200000, 1300000, 1500000, 1800000, 2500000, 2800000, 3000000, 2000000,
+};
+
+static const unsigned int ldo_volt_table7[] = {
+ 1300000, 1500000, 1800000, 2000000, 2500000, 2800000, 3000000, 3300000,
+};
+
+static int mt6397_buck_set_voltage_sel(struct regulator_dev *rdev, unsigned sel)
+{
+ int ret;
+ unsigned int vosel;
+ unsigned int voselon;
+ unsigned int vosel_mask;
+ struct mt6397_regulator_info *info = rdev_get_drvdata(rdev);
+
+ vosel = info->buck_conf.vosel_reg;
+ voselon = info->buck_conf.voselon_reg;
+ vosel_mask = info->buck_conf.vosel_mask;
+
+ ret = regmap_update_bits(rdev->regmap, vosel, vosel_mask, sel);
+ if (ret != 0) {
+ dev_err(&rdev->dev, "Failed to update vosel: %d\n", ret);
+ return ret;
+ }
+
+ ret = regmap_update_bits(rdev->regmap, voselon, vosel_mask, sel);
+ if (ret != 0) {
+ dev_err(&rdev->dev, "Failed to update vosel_on: %d\n", ret);
+ return ret;
+ }
+ return 0;
+}
+
+static int mt6397_buck_get_voltage_sel(struct regulator_dev *rdev)
+{
+ int ret;
+ unsigned int nivosel;
+ unsigned int vosel_mask;
+ unsigned int regval;
+ struct mt6397_regulator_info *info = rdev_get_drvdata(rdev);
+
+ nivosel = info->buck_conf.nivosel_reg;
+ vosel_mask = info->buck_conf.vosel_mask;
+
+ ret = regmap_read(rdev->regmap, nivosel, ®val);
+ if (ret != 0) {
+ dev_err(&rdev->dev, "Failed to get vosel: %d\n", ret);
+ return ret;
+ }
+
+ regval &= vosel_mask;
+ regval >>= ffs(vosel_mask) - 1;
+
+ return regval;
+}
+
+
+static int mt6397_ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned sel)
+{
+ int ret;
+ unsigned int is_fixed;
+ unsigned int vosel;
+ unsigned int vosel_mask;
+ unsigned int vosel_shift;
+
+ struct mt6397_regulator_info *info = rdev_get_drvdata(rdev);
+
+ is_fixed = info->ldo_conf.is_fixed;
+ vosel = info->ldo_conf.vosel_reg;
+ vosel_mask = info->ldo_conf.vosel_mask;
+ vosel_shift = info->ldo_conf.vosel_shift;
+
+ if (is_fixed)
+ return 0;
+
+ sel <<= vosel_shift;
+ ret = regmap_update_bits(rdev->regmap, vosel, vosel_mask, sel);
+ if (ret != 0) {
+ dev_err(&rdev->dev, "Failed to update vosel: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int mt6397_ldo_get_voltage_sel(struct regulator_dev *rdev)
+{
+ int ret;
+ unsigned int vosel;
+ unsigned int vosel_mask;
+ unsigned int regval;
+ struct mt6397_regulator_info *info = rdev_get_drvdata(rdev);
+
+ vosel = info->ldo_conf.vosel_reg;
+ vosel_mask = info->ldo_conf.vosel_mask;
+
+ ret = regmap_read(rdev->regmap, vosel, ®val);
+ if (ret != 0) {
+ dev_err(&rdev->dev, "Failed to get vosel: %d\n", ret);
+ return ret;
+ }
+
+ regval &= vosel_mask;
+ regval >>= ffs(vosel_mask) - 1;
+
+ return regval;
+}
+
+static int mt6397_regulator_is_enabled(struct regulator_dev *rdev)
+{
+ int ret;
+ unsigned int regaddr;
+ unsigned int regmask;
+ unsigned int regval;
+ struct mt6397_regulator_info *info = rdev_get_drvdata(rdev);
+
+ regaddr = info->qi;
+ regmask = info->qi_mask;
+
+ ret = regmap_read(rdev->regmap, regaddr, ®val);
+ if (ret != 0) {
+ dev_err(&rdev->dev, "Failed to get vosel: %d\n", ret);
+ return ret;
+ }
+
+ return (regval & info->qi_mask) ? 1 : 0;
+}
+
+static struct regulator_ops mt6397_volt_range_ops = {
+ .list_voltage = regulator_list_voltage_linear_range,
+ .map_voltage = regulator_map_voltage_linear_range,
+ .set_voltage_sel = mt6397_buck_set_voltage_sel,
+ .get_voltage_sel = mt6397_buck_get_voltage_sel,
+ .set_voltage_time_sel = regulator_set_voltage_time_sel,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = mt6397_regulator_is_enabled,
+};
+
+static struct regulator_ops mt6397_volt_table_ops = {
+ .list_voltage = regulator_list_voltage_table,
+ .map_voltage = regulator_map_voltage_iterate,
+ .set_voltage_sel = mt6397_ldo_set_voltage_sel,
+ .get_voltage_sel = mt6397_ldo_get_voltage_sel,
+ .set_voltage_time_sel = regulator_set_voltage_time_sel,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .is_enabled = mt6397_regulator_is_enabled,
+};
+
+/* The array is indexed by id(MT6397_ID_XXX) */
+static struct mt6397_regulator_info mt6397_regulators[] = {
+ MT6397_BUCK(VPCA15, 700000, 1493750, 6250, buck_volt_range1,
+ MT6397_VCA15_CON7, MT6397_VCA15_CON9,
+ MT6397_VCA15_CON10, MT6397_VCA15_CON12),
+ MT6397_BUCK(VPCA7, 700000, 1493750, 6250, buck_volt_range1,
+ MT6397_VPCA7_CON7, MT6397_VPCA7_CON9,
+ MT6397_VPCA7_CON10, MT6397_VPCA7_CON12),
+ MT6397_BUCK(VSRAMCA15, 700000, 1493750, 6250, buck_volt_range1,
+ MT6397_VSRMCA15_CON7, MT6397_VSRMCA15_CON9,
+ MT6397_VSRMCA15_CON10, MT6397_VSRMCA15_CON12),
+ MT6397_BUCK(VSRAMCA7, 700000, 1493750, 6250, buck_volt_range1,
+ MT6397_VSRMCA7_CON7, MT6397_VSRMCA7_CON9,
+ MT6397_VSRMCA7_CON10, MT6397_VSRMCA7_CON12),
+ MT6397_BUCK(VCORE, 700000, 1493750, 6250, buck_volt_range1,
+ MT6397_VCORE_CON7, MT6397_VCORE_CON9,
+ MT6397_VCORE_CON10, MT6397_VCORE_CON12),
+ MT6397_BUCK(VGPU, 700000, 1493750, 6250, buck_volt_range1,
+ MT6397_VGPU_CON7, MT6397_VGPU_CON9,
+ MT6397_VGPU_CON10, MT6397_VCORE_CON12),
+ MT6397_BUCK(VDRM, 800000, 1593750, 6250, buck_volt_range2,
+ MT6397_VDRM_CON7, MT6397_VDRM_CON9,
+ MT6397_VDRM_CON10, MT6397_VDRM_CON12),
+ MT6397_BUCK_TABLE(VIO18, fixed_1800000_voltage,
+ MT6397_VIO18_CON7, MT6397_VIO18_CON9,
+ MT6397_VIO18_CON10, MT6397_VIO18_CON12),
+ MT6397_LDO(VTCXO, fixed_2800000_voltage,
+ MT6397_ANALDO_CON0, 10, 1, 0, 0, 0),
+ MT6397_LDO(VA28, fixed_2800000_voltage,
+ MT6397_ANALDO_CON1, 14, 1, 0, 0, 0),
+ MT6397_LDO(VCAMA, ldo_volt_table1,
+ MT6397_ANALDO_CON2, 15, 0, MT6397_ANALDO_CON6, 0xC0, 6),
+ MT6397_LDO(VIO28, fixed_2800000_voltage,
+ MT6397_DIGLDO_CON0, 14, 1, 0, 0, 0),
+ MT6397_LDO(USB, fixed_3300000_voltage,
+ MT6397_DIGLDO_CON1, 14, 1, 0, 0, 0),
+ MT6397_LDO(VMC, ldo_volt_table2,
+ MT6397_DIGLDO_CON2, 12, 0, MT6397_DIGLDO_CON29, 0x10, 4),
+ MT6397_LDO(VMCH, ldo_volt_table3,
+ MT6397_DIGLDO_CON3, 14, 0, MT6397_DIGLDO_CON17, 0x80, 7),
+ MT6397_LDO(VEMC3V3, ldo_volt_table3,
+ MT6397_DIGLDO_CON4, 14, 0, MT6397_DIGLDO_CON18, 0x10, 4),
+ MT6397_LDO(VCAMD, ldo_volt_table4,
+ MT6397_DIGLDO_CON5, 15, 0, MT6397_DIGLDO_CON19, 0xE0, 5),
+ MT6397_LDO(VCAMIO, ldo_volt_table5,
+ MT6397_DIGLDO_CON6, 15, 0, MT6397_DIGLDO_CON20, 0xE0, 5),
+ MT6397_LDO(VCAMAF, ldo_volt_table5,
+ MT6397_DIGLDO_CON7, 15, 0, MT6397_DIGLDO_CON21, 0xE0, 5),
+ MT6397_LDO(VGP4, ldo_volt_table5,
+ MT6397_DIGLDO_CON8, 15, 0, MT6397_DIGLDO_CON22, 0xE0, 5),
+ MT6397_LDO(VGP5, ldo_volt_table6,
+ MT6397_DIGLDO_CON9, 15, 0, MT6397_DIGLDO_CON23, 0xE0, 5),
+ MT6397_LDO(VGP6, ldo_volt_table5,
+ MT6397_DIGLDO_CON10, 15, 0, MT6397_DIGLDO_CON33, 0xE0, 5),
+ MT6397_LDO(VIBR, ldo_volt_table7,
+ MT6397_DIGLDO_CON24, 15, 0, MT6397_DIGLDO_CON25, 0xE00, 9),
+};
+
+#define MT6397_REGULATOR_OF_MATCH(_name, _id) \
+[MT6397_ID_##_id] = { \
+ .name = #_name, \
+ .driver_data = &mt6397_regulators[MT6397_ID_##_id], \
+}
+
+static struct of_regulator_match mt6397_regulator_matches[] = {
+ MT6397_REGULATOR_OF_MATCH(buck_vpca15, VPCA15),
+ MT6397_REGULATOR_OF_MATCH(buck_vpca7, VPCA7),
+ MT6397_REGULATOR_OF_MATCH(buck_vsramca15, VSRAMCA15),
+ MT6397_REGULATOR_OF_MATCH(buck_vsramca7, VSRAMCA7),
+ MT6397_REGULATOR_OF_MATCH(buck_vcore, VCORE),
+ MT6397_REGULATOR_OF_MATCH(buck_vgpu, VGPU),
+ MT6397_REGULATOR_OF_MATCH(buck_vdrm, VDRM),
+ MT6397_REGULATOR_OF_MATCH(buck_vio18, VIO18),
+ MT6397_REGULATOR_OF_MATCH(ldo_vtcxo, VTCXO),
+ MT6397_REGULATOR_OF_MATCH(ldo_va28, VA28),
+ MT6397_REGULATOR_OF_MATCH(ldo_vcama, VCAMA),
+ MT6397_REGULATOR_OF_MATCH(ldo_vio28, VIO28),
+ MT6397_REGULATOR_OF_MATCH(ldo_usb, USB),
+ MT6397_REGULATOR_OF_MATCH(ldo_vmc, VMC),
+ MT6397_REGULATOR_OF_MATCH(ldo_vmch, VMCH),
+ MT6397_REGULATOR_OF_MATCH(ldo_vemc3v3, VEMC3V3),
+ MT6397_REGULATOR_OF_MATCH(ldo_vcamd, VCAMD),
+ MT6397_REGULATOR_OF_MATCH(ldo_vcamio, VCAMIO),
+ MT6397_REGULATOR_OF_MATCH(ldo_vcamaf, VCAMAF),
+ MT6397_REGULATOR_OF_MATCH(ldo_vgp4, VGP4),
+ MT6397_REGULATOR_OF_MATCH(ldo_vgp5, VGP5),
+ MT6397_REGULATOR_OF_MATCH(ldo_vgp6, VGP6),
+ MT6397_REGULATOR_OF_MATCH(ldo_vibr, VIBR),
+};
+
+static int mt6397_regulator_dt_init(struct platform_device *pdev,
+ struct mt6397_regulator_priv *priv)
+{
+ struct mt6397_chip *mt6397 = dev_get_drvdata(pdev->dev.parent);
+ struct device_node *np, *regulators;
+ struct mt6397_regulator_data *rdata;
+ int matched, i, j, ret;
+ unsigned int reg_value;
+
+ if (!priv) {
+ dev_err(&pdev->dev, "regulator private data missing\n");
+ return -EINVAL;
+ }
+
+ np = of_node_get(pdev->dev.parent->of_node);
+ if (!np)
+ return -EINVAL;
+
+ regulators = of_get_child_by_name(np, "regulators");
+ if (!regulators) {
+ dev_err(&pdev->dev, "regulators node not found\n");
+ ret = -EINVAL;
+ goto out;
+ }
+ of_node_put(np);
+ matched = of_regulator_match(&pdev->dev, regulators,
+ mt6397_regulator_matches,
+ ARRAY_SIZE(mt6397_regulator_matches));
+ of_node_put(regulators);
+ if (matched < 0) {
+ dev_err(&pdev->dev, "Error parsing regulator init data: %d\n",
+ matched);
+ return matched;
+ }
+
+ priv->num_regulators = matched;
+ priv->regulators = devm_kzalloc(&pdev->dev,
+ (sizeof(struct mt6397_regulator_data) *
+ ARRAY_SIZE(mt6397_regulator_matches)), GFP_KERNEL);
+ if (!priv->regulators)
+ return -ENOMEM;
+
+ /* Read PMIC chip revision to update constraints and voltage table */
+ if (regmap_read(mt6397->regmap, MT6397_CID, ®_value) < 0) {
+ dev_err(&pdev->dev, "Failed to read Chip ID\n");
+ return -EIO;
+ }
+ dev_info(&pdev->dev, "Chip ID = 0x%x\n", reg_value);
+
+ if ((reg_value & 0xFF) == MT6397_REGULATOR_ID91) {
+ j = MT6397_ID_VCAMIO;
+ mt6397_regulator_matches[j].init_data->constraints.min_uV =
+ 1000000;
+ mt6397_regulators[j].desc.volt_table = ldo_volt_table5_v2;
+ }
+
+ rdata = priv->regulators;
+ for (i = 0; i < ARRAY_SIZE(mt6397_regulator_matches); i++) {
+ rdata->id = i;
+ rdata->name = mt6397_regulator_matches[i].name;
+ rdata->initdata = mt6397_regulator_matches[i].init_data;
+ rdata->reg_node = mt6397_regulator_matches[i].of_node;
+ rdata++;
+ }
+ return 0;
+
+out:
+ of_node_put(np);
+ return ret;
+}
+
+static int mt6397_regulator_probe(struct platform_device *pdev)
+{
+ struct mt6397_chip *mt6397 = dev_get_drvdata(pdev->dev.parent);
+ int ret, i, id, size;
+ struct regulator_config config = {};
+ struct regulator_dev *rdev;
+ struct mt6397_regulator_priv *priv;
+
+ size = sizeof(struct mt6397_regulator_priv);
+ priv = devm_kzalloc(&pdev->dev, size, GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, priv);
+ ret = mt6397_regulator_dt_init(pdev, priv);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < MT6397_ID_RG_MAX; i++) {
+ id = priv->regulators[i].id;
+ config.dev = &pdev->dev;
+ config.init_data = priv->regulators[i].initdata;
+ config.of_node = priv->regulators[i].reg_node;
+ config.driver_data = mt6397_regulator_matches[i].driver_data;
+ config.regmap = mt6397->regmap;
+
+ rdev = devm_regulator_register(&pdev->dev,
+ &mt6397_regulators[i].desc, &config);
+ if (IS_ERR(rdev)) {
+ dev_err(&pdev->dev, "failed to register %s\n",
+ mt6397_regulators[id].desc.name);
+ return PTR_ERR(rdev);
+ }
+ }
+
+ return 0;
+}
+
+static const struct platform_device_id mt6397_regulator_id[] = {
+ {"mt6397-regulator", 0},
+ { },
+};
+
+static struct platform_driver mt6397_regulator_driver = {
+ .driver = {
+ .name = "mt6397-regulator",
+ .owner = THIS_MODULE,
+ },
+ .probe = mt6397_regulator_probe,
+ .id_table = mt6397_regulator_id,
+};
+
+module_platform_driver(mt6397_regulator_driver);
+
+MODULE_AUTHOR("Flora Fu <flora.fu@mediatek.com>");
+MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6397 PMIC");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:mt6397-regulator");
new file mode 100644
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2014 MediaTek Inc.
+ * Author: Flora.Fu <flora.fu@mediatek.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.
+ */
+
+#ifndef __LINUX_REGULATOR_MT6397_H
+#define __LINUX_REGULATOR_MT6397_H
+
+enum {
+ MT6397_ID_VPCA15 = 0,
+ MT6397_ID_VPCA7,
+ MT6397_ID_VSRAMCA15,
+ MT6397_ID_VSRAMCA7,
+ MT6397_ID_VCORE,
+ MT6397_ID_VGPU,
+ MT6397_ID_VDRM,
+ MT6397_ID_VIO18 = 7,
+
+ MT6397_ID_VTCXO,
+ MT6397_ID_VA28,
+ MT6397_ID_VCAMA,
+ MT6397_ID_VIO28,
+ MT6397_ID_USB,
+ MT6397_ID_VMC,
+ MT6397_ID_VMCH,
+ MT6397_ID_VEMC3V3,
+ MT6397_ID_VCAMD,
+ MT6397_ID_VCAMIO,
+ MT6397_ID_VCAMAF,
+ MT6397_ID_VGP4,
+ MT6397_ID_VGP5,
+ MT6397_ID_VGP6,
+ MT6397_ID_VIBR,
+
+ MT6397_ID_RG_MAX,
+};
+#define MT6397_MAX_REGULATOR MT6397_ID_RG_MAX
+#define MT6397_REGULATOR_ID97 0x97
+#define MT6397_REGULATOR_ID91 0x91
+
+#endif /* __LINUX_REGULATOR_MT6397_H */
This patch is MT6397 regulator driver. signed-off-by: Flora Fu <flora.fu@mediatek.com> --- drivers/regulator/Kconfig | 6 + drivers/regulator/Makefile | 1 + drivers/regulator/mt6397-regulator.c | 547 +++++++++++++++++++++++++++++ include/linux/regulator/mt6397-regulator.h | 50 +++ 4 files changed, 604 insertions(+) create mode 100644 drivers/regulator/mt6397-regulator.c create mode 100644 include/linux/regulator/mt6397-regulator.h