ignore this one please, my script used the wrong SoB line will send V10
in a sec ... sorry for the noise

On 18/07/2016 14:09, John Crispin wrote:
> From: Chen Zhong <chen.zh...@mediatek.com>
> 
> The MT6323 is a regulator found on boards based on MediaTek MT7623 and
> probably other SoCs. It is a so called pmic and connects as a slave to
> SoC using SPI, wrapped inside the pmic-wrapper.
> 
> Signed-off-by: Chen Zhong <chen.zh...@mediatek.com>
> Signed-off-by: John Crispin <blo...@openwrt.org>
> ---
> This series was dropped from the v4.7 queue to avoid a merge conflict with
> the series adding mt6323 support to the MFD driver. These patches were
> merged during the v4.7 window, so this series is good to go for v4.8. The
> relevant started with
> commit feec4799ac4d ("mfd: mt6397: int_con and int_status may vary ...")
> through to
> commit 44760cf3bf0a ("mfd: mt6397: Add MT6323 support to MT6397 driver")
> 
> Changes in V9
> * drop compatible string from devicetree
> 
> Changes in V6
> * add back the set/get mode callbacks
> 
> Changes in V5
> * remove the code that modifies constraints
> * remove the code allows mode changes
> 
> Changes in V4:
> * add id_table and of_match_table
> * use short GPL text
> * change MODULE_LICENSE to GPL V2
> 
> Changes in V2:
> * send to the the proper maintainer
> 
>  drivers/regulator/Kconfig                  |    9 +
>  drivers/regulator/Makefile                 |    1 +
>  drivers/regulator/mt6323-regulator.c       |  432 
> ++++++++++++++++++++++++++++
>  include/linux/regulator/mt6323-regulator.h |   52 ++++
>  4 files changed, 494 insertions(+)
>  create mode 100644 drivers/regulator/mt6323-regulator.c
>  create mode 100644 include/linux/regulator/mt6323-regulator.h
> 
> diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
> index ae9cbd6..6c88e31 100644
> --- a/drivers/regulator/Kconfig
> +++ b/drivers/regulator/Kconfig
> @@ -498,6 +498,15 @@ config REGULATOR_MT6311
>         This driver supports the control of different power rails of device
>         through regulator interface.
>  
> +config REGULATOR_MT6323
> +     tristate "MediaTek MT6323 PMIC"
> +     depends on MFD_MT6397
> +     help
> +       Say y here to select this option to enable the power regulator of
> +       MediaTek MT6323 PMIC.
> +       This driver supports the control of different power rails of device
> +       through regulator interface.
> +
>  config REGULATOR_MT6397
>       tristate "MediaTek MT6397 PMIC"
>       depends on MFD_MT6397
> diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
> index 85a1d44..f3da9ee 100644
> --- a/drivers/regulator/Makefile
> +++ b/drivers/regulator/Makefile
> @@ -65,6 +65,7 @@ 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_MT6311) += mt6311-regulator.o
> +obj-$(CONFIG_REGULATOR_MT6323)       += mt6323-regulator.o
>  obj-$(CONFIG_REGULATOR_MT6397)       += mt6397-regulator.o
>  obj-$(CONFIG_REGULATOR_QCOM_RPM) += qcom_rpm-regulator.o
>  obj-$(CONFIG_REGULATOR_QCOM_SMD_RPM) += qcom_smd-regulator.o
> diff --git a/drivers/regulator/mt6323-regulator.c 
> b/drivers/regulator/mt6323-regulator.c
> new file mode 100644
> index 0000000..28ebbda
> --- /dev/null
> +++ b/drivers/regulator/mt6323-regulator.c
> @@ -0,0 +1,432 @@
> +/*
> + * Copyright (c) 2016 MediaTek Inc.
> + * Author: Chen Zhong <chen.zh...@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.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/platform_device.h>
> +#include <linux/regmap.h>
> +#include <linux/mfd/mt6397/core.h>
> +#include <linux/mfd/mt6323/registers.h>
> +#include <linux/regulator/driver.h>
> +#include <linux/regulator/machine.h>
> +#include <linux/regulator/mt6323-regulator.h>
> +#include <linux/regulator/of_regulator.h>
> +
> +#define MT6323_LDO_MODE_NORMAL       0
> +#define MT6323_LDO_MODE_LP   1
> +
> +/*
> + * MT6323 regulators' information
> + *
> + * @desc: standard fields of regulator description.
> + * @qi: Mask for query enable signal status of regulators
> + * @vselon_reg: Register sections for hardware control mode of bucks
> + * @vselctrl_reg: Register for controlling the buck control mode.
> + * @vselctrl_mask: Mask for query buck's voltage control mode.
> + */
> +struct mt6323_regulator_info {
> +     struct regulator_desc desc;
> +     u32 qi;
> +     u32 vselon_reg;
> +     u32 vselctrl_reg;
> +     u32 vselctrl_mask;
> +     u32 modeset_reg;
> +     u32 modeset_mask;
> +};
> +
> +#define MT6323_BUCK(match, vreg, min, max, step, volt_ranges, enreg, \
> +             vosel, vosel_mask, voselon, vosel_ctrl)                 \
> +[MT6323_ID_##vreg] = {                                                       
> \
> +     .desc = {                                                       \
> +             .name = #vreg,                                          \
> +             .of_match = of_match_ptr(match),                        \
> +             .ops = &mt6323_volt_range_ops,                          \
> +             .type = REGULATOR_VOLTAGE,                              \
> +             .id = MT6323_ID_##vreg,                                 \
> +             .owner = THIS_MODULE,                                   \
> +             .n_voltages = (max - min)/step + 1,                     \
> +             .linear_ranges = volt_ranges,                           \
> +             .n_linear_ranges = ARRAY_SIZE(volt_ranges),             \
> +             .vsel_reg = vosel,                                      \
> +             .vsel_mask = vosel_mask,                                \
> +             .enable_reg = enreg,                                    \
> +             .enable_mask = BIT(0),                                  \
> +     },                                                              \
> +     .qi = BIT(13),                                                  \
> +     .vselon_reg = voselon,                                          \
> +     .vselctrl_reg = vosel_ctrl,                                     \
> +     .vselctrl_mask = BIT(1),                                        \
> +}
> +
> +#define MT6323_LDO(match, vreg, ldo_volt_table, enreg, enbit, vosel, \
> +             vosel_mask, _modeset_reg, _modeset_mask)                \
> +[MT6323_ID_##vreg] = {                                                       
> \
> +     .desc = {                                                       \
> +             .name = #vreg,                                          \
> +             .of_match = of_match_ptr(match),                        \
> +             .ops = &mt6323_volt_table_ops,                          \
> +             .type = REGULATOR_VOLTAGE,                              \
> +             .id = MT6323_ID_##vreg,                                 \
> +             .owner = THIS_MODULE,                                   \
> +             .n_voltages = ARRAY_SIZE(ldo_volt_table),               \
> +             .volt_table = ldo_volt_table,                           \
> +             .vsel_reg = vosel,                                      \
> +             .vsel_mask = vosel_mask,                                \
> +             .enable_reg = enreg,                                    \
> +             .enable_mask = BIT(enbit),                              \
> +     },                                                              \
> +     .qi = BIT(15),                                                  \
> +     .modeset_reg = _modeset_reg,                                    \
> +     .modeset_mask = _modeset_mask,                                  \
> +}
> +
> +#define MT6323_REG_FIXED(match, vreg, enreg, enbit, volt,            \
> +             _modeset_reg, _modeset_mask)                            \
> +[MT6323_ID_##vreg] = {                                                       
> \
> +     .desc = {                                                       \
> +             .name = #vreg,                                          \
> +             .of_match = of_match_ptr(match),                        \
> +             .ops = &mt6323_volt_fixed_ops,                          \
> +             .type = REGULATOR_VOLTAGE,                              \
> +             .id = MT6323_ID_##vreg,                                 \
> +             .owner = THIS_MODULE,                                   \
> +             .n_voltages = 1,                                        \
> +             .enable_reg = enreg,                                    \
> +             .enable_mask = BIT(enbit),                              \
> +             .min_uV = volt,                                         \
> +     },                                                              \
> +     .qi = BIT(15),                                                  \
> +     .modeset_reg = _modeset_reg,                                    \
> +     .modeset_mask = _modeset_mask,                                  \
> +}
> +
> +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(1400000, 0, 0x7f, 12500),
> +};
> +
> +static const struct regulator_linear_range buck_volt_range3[] = {
> +     REGULATOR_LINEAR_RANGE(500000, 0, 0x3f, 50000),
> +};
> +
> +static const u32 ldo_volt_table1[] = {
> +     3300000, 3400000, 3500000, 3600000,
> +};
> +
> +static const u32 ldo_volt_table2[] = {
> +     1500000, 1800000, 2500000, 2800000,
> +};
> +
> +static const u32 ldo_volt_table3[] = {
> +     1800000, 3300000,
> +};
> +
> +static const u32 ldo_volt_table4[] = {
> +     3000000, 3300000,
> +};
> +
> +static const u32 ldo_volt_table5[] = {
> +     1200000, 1300000, 1500000, 1800000, 2000000, 2800000, 3000000, 3300000,
> +};
> +
> +static const u32 ldo_volt_table6[] = {
> +     1200000, 1300000, 1500000, 1800000, 2500000, 2800000, 3000000, 2000000,
> +};
> +
> +static const u32 ldo_volt_table7[] = {
> +     1200000, 1300000, 1500000, 1800000,
> +};
> +
> +static const u32 ldo_volt_table8[] = {
> +     1800000, 3000000,
> +};
> +
> +static const u32 ldo_volt_table9[] = {
> +     1200000, 1350000, 1500000, 1800000,
> +};
> +
> +static const u32 ldo_volt_table10[] = {
> +     1200000, 1300000, 1500000, 1800000,
> +};
> +
> +static int mt6323_get_status(struct regulator_dev *rdev)
> +{
> +     int ret;
> +     u32 regval;
> +     struct mt6323_regulator_info *info = rdev_get_drvdata(rdev);
> +
> +     ret = regmap_read(rdev->regmap, info->desc.enable_reg, &regval);
> +     if (ret != 0) {
> +             dev_err(&rdev->dev, "Failed to get enable reg: %d\n", ret);
> +             return ret;
> +     }
> +
> +     return (regval & info->qi) ? REGULATOR_STATUS_ON : REGULATOR_STATUS_OFF;
> +}
> +
> +static int mt6323_ldo_set_mode(struct regulator_dev *rdev, unsigned int mode)
> +{
> +     int ret, val = 0;
> +     struct mt6323_regulator_info *info = rdev_get_drvdata(rdev);
> +
> +     if (!info->modeset_mask) {
> +             dev_err(&rdev->dev, "regulator %s doesn't support set_mode\n",
> +                     info->desc.name);
> +             return -EINVAL;
> +     }
> +
> +     switch (mode) {
> +     case REGULATOR_MODE_STANDBY:
> +             val = MT6323_LDO_MODE_LP;
> +             break;
> +     case REGULATOR_MODE_NORMAL:
> +             val = MT6323_LDO_MODE_NORMAL;
> +             break;
> +     default:
> +             return -EINVAL;
> +     }
> +
> +     val <<= ffs(info->modeset_mask) - 1;
> +
> +     ret = regmap_update_bits(rdev->regmap, info->modeset_reg,
> +                               info->modeset_mask, val);
> +
> +     return ret;
> +}
> +
> +static unsigned int mt6323_ldo_get_mode(struct regulator_dev *rdev)
> +{
> +     unsigned int val;
> +     unsigned int mode;
> +     int ret;
> +     struct mt6323_regulator_info *info = rdev_get_drvdata(rdev);
> +
> +     if (!info->modeset_mask) {
> +             dev_err(&rdev->dev, "regulator %s doesn't support get_mode\n",
> +                     info->desc.name);
> +             return -EINVAL;
> +     }
> +
> +     ret = regmap_read(rdev->regmap, info->modeset_reg, &val);
> +     if (ret < 0)
> +             return ret;
> +
> +     val &= info->modeset_mask;
> +     val >>= ffs(info->modeset_mask) - 1;
> +
> +     if (val & 0x1)
> +             mode = REGULATOR_MODE_STANDBY;
> +     else
> +             mode = REGULATOR_MODE_NORMAL;
> +
> +     return mode;
> +}
> +
> +static struct regulator_ops mt6323_volt_range_ops = {
> +     .list_voltage = regulator_list_voltage_linear_range,
> +     .map_voltage = regulator_map_voltage_linear_range,
> +     .set_voltage_sel = regulator_set_voltage_sel_regmap,
> +     .get_voltage_sel = regulator_get_voltage_sel_regmap,
> +     .set_voltage_time_sel = regulator_set_voltage_time_sel,
> +     .enable = regulator_enable_regmap,
> +     .disable = regulator_disable_regmap,
> +     .is_enabled = regulator_is_enabled_regmap,
> +     .get_status = mt6323_get_status,
> +};
> +
> +static struct regulator_ops mt6323_volt_table_ops = {
> +     .list_voltage = regulator_list_voltage_table,
> +     .map_voltage = regulator_map_voltage_iterate,
> +     .set_voltage_sel = regulator_set_voltage_sel_regmap,
> +     .get_voltage_sel = regulator_get_voltage_sel_regmap,
> +     .set_voltage_time_sel = regulator_set_voltage_time_sel,
> +     .enable = regulator_enable_regmap,
> +     .disable = regulator_disable_regmap,
> +     .is_enabled = regulator_is_enabled_regmap,
> +     .get_status = mt6323_get_status,
> +     .set_mode = mt6323_ldo_set_mode,
> +     .get_mode = mt6323_ldo_get_mode,
> +};
> +
> +static struct regulator_ops mt6323_volt_fixed_ops = {
> +     .list_voltage = regulator_list_voltage_linear,
> +     .enable = regulator_enable_regmap,
> +     .disable = regulator_disable_regmap,
> +     .is_enabled = regulator_is_enabled_regmap,
> +     .get_status = mt6323_get_status,
> +     .set_mode = mt6323_ldo_set_mode,
> +     .get_mode = mt6323_ldo_get_mode,
> +};
> +
> +/* The array is indexed by id(MT6323_ID_XXX) */
> +static struct mt6323_regulator_info mt6323_regulators[] = {
> +     MT6323_BUCK("buck_vproc", VPROC, 700000, 1493750, 6250,
> +             buck_volt_range1, MT6323_VPROC_CON7, MT6323_VPROC_CON9, 0x7f,
> +             MT6323_VPROC_CON10, MT6323_VPROC_CON5),
> +     MT6323_BUCK("buck_vsys", VSYS, 1400000, 2987500, 12500,
> +             buck_volt_range2, MT6323_VSYS_CON7, MT6323_VSYS_CON9, 0x7f,
> +             MT6323_VSYS_CON10, MT6323_VSYS_CON5),
> +     MT6323_BUCK("buck_vpa", VPA, 500000, 3650000, 50000,
> +             buck_volt_range3, MT6323_VPA_CON7, MT6323_VPA_CON9,
> +             0x3f, MT6323_VPA_CON10, MT6323_VPA_CON5),
> +     MT6323_REG_FIXED("ldo_vtcxo", VTCXO, MT6323_ANALDO_CON1, 10, 2800000,
> +             MT6323_ANALDO_CON1, 0x2),
> +     MT6323_REG_FIXED("ldo_vcn28", VCN28, MT6323_ANALDO_CON19, 12, 2800000,
> +             MT6323_ANALDO_CON20, 0x2),
> +     MT6323_LDO("ldo_vcn33_bt", VCN33_BT, ldo_volt_table1,
> +             MT6323_ANALDO_CON16, 7, MT6323_ANALDO_CON16, 0xC,
> +             MT6323_ANALDO_CON21, 0x2),
> +     MT6323_LDO("ldo_vcn33_wifi", VCN33_WIFI, ldo_volt_table1,
> +             MT6323_ANALDO_CON17, 12, MT6323_ANALDO_CON16, 0xC,
> +             MT6323_ANALDO_CON21, 0x2),
> +     MT6323_REG_FIXED("ldo_va", VA, MT6323_ANALDO_CON2, 14, 2800000,
> +             MT6323_ANALDO_CON2, 0x2),
> +     MT6323_LDO("ldo_vcama", VCAMA, ldo_volt_table2,
> +             MT6323_ANALDO_CON4, 15, MT6323_ANALDO_CON10, 0x60, -1, 0),
> +     MT6323_REG_FIXED("ldo_vio28", VIO28, MT6323_DIGLDO_CON0, 14, 2800000,
> +             MT6323_DIGLDO_CON0, 0x2),
> +     MT6323_REG_FIXED("ldo_vusb", VUSB, MT6323_DIGLDO_CON2, 14, 3300000,
> +             MT6323_DIGLDO_CON2, 0x2),
> +     MT6323_LDO("ldo_vmc", VMC, ldo_volt_table3,
> +             MT6323_DIGLDO_CON3, 12, MT6323_DIGLDO_CON24, 0x10,
> +             MT6323_DIGLDO_CON3, 0x2),
> +     MT6323_LDO("ldo_vmch", VMCH, ldo_volt_table4,
> +             MT6323_DIGLDO_CON5, 14, MT6323_DIGLDO_CON26, 0x80,
> +             MT6323_DIGLDO_CON5, 0x2),
> +     MT6323_LDO("ldo_vemc3v3", VEMC3V3, ldo_volt_table4,
> +             MT6323_DIGLDO_CON6, 14, MT6323_DIGLDO_CON27, 0x80,
> +             MT6323_DIGLDO_CON6, 0x2),
> +     MT6323_LDO("ldo_vgp1", VGP1, ldo_volt_table5,
> +             MT6323_DIGLDO_CON7, 15, MT6323_DIGLDO_CON28, 0xE0,
> +             MT6323_DIGLDO_CON7, 0x2),
> +     MT6323_LDO("ldo_vgp2", VGP2, ldo_volt_table6,
> +             MT6323_DIGLDO_CON8, 15, MT6323_DIGLDO_CON29, 0xE0,
> +             MT6323_DIGLDO_CON8, 0x2),
> +     MT6323_LDO("ldo_vgp3", VGP3, ldo_volt_table7,
> +             MT6323_DIGLDO_CON9, 15, MT6323_DIGLDO_CON30, 0x60,
> +             MT6323_DIGLDO_CON9, 0x2),
> +     MT6323_REG_FIXED("ldo_vcn18", VCN18, MT6323_DIGLDO_CON11, 14, 1800000,
> +             MT6323_DIGLDO_CON11, 0x2),
> +     MT6323_LDO("ldo_vsim1", VSIM1, ldo_volt_table8,
> +             MT6323_DIGLDO_CON13, 15, MT6323_DIGLDO_CON34, 0x20,
> +             MT6323_DIGLDO_CON13, 0x2),
> +     MT6323_LDO("ldo_vsim2", VSIM2, ldo_volt_table8,
> +             MT6323_DIGLDO_CON14, 15, MT6323_DIGLDO_CON35, 0x20,
> +             MT6323_DIGLDO_CON14, 0x2),
> +     MT6323_REG_FIXED("ldo_vrtc", VRTC, MT6323_DIGLDO_CON15, 8, 2800000,
> +             -1, 0),
> +     MT6323_LDO("ldo_vcamaf", VCAMAF, ldo_volt_table5,
> +             MT6323_DIGLDO_CON31, 15, MT6323_DIGLDO_CON32, 0xE0,
> +             MT6323_DIGLDO_CON31, 0x2),
> +     MT6323_LDO("ldo_vibr", VIBR, ldo_volt_table5,
> +             MT6323_DIGLDO_CON39, 15, MT6323_DIGLDO_CON40, 0xE0,
> +             MT6323_DIGLDO_CON39, 0x2),
> +     MT6323_REG_FIXED("ldo_vrf18", VRF18, MT6323_DIGLDO_CON45, 15, 1825000,
> +             MT6323_DIGLDO_CON45, 0x2),
> +     MT6323_LDO("ldo_vm", VM, ldo_volt_table9,
> +             MT6323_DIGLDO_CON47, 14, MT6323_DIGLDO_CON48, 0x30,
> +             MT6323_DIGLDO_CON47, 0x2),
> +     MT6323_REG_FIXED("ldo_vio18", VIO18, MT6323_DIGLDO_CON49, 14, 1800000,
> +             MT6323_DIGLDO_CON49, 0x2),
> +     MT6323_LDO("ldo_vcamd", VCAMD, ldo_volt_table10,
> +             MT6323_DIGLDO_CON51, 14, MT6323_DIGLDO_CON52, 0x60,
> +             MT6323_DIGLDO_CON51, 0x2),
> +     MT6323_REG_FIXED("ldo_vcamio", VCAMIO, MT6323_DIGLDO_CON53, 14, 1800000,
> +             MT6323_DIGLDO_CON53, 0x2),
> +};
> +
> +static int mt6323_set_buck_vosel_reg(struct platform_device *pdev)
> +{
> +     struct mt6397_chip *mt6323 = dev_get_drvdata(pdev->dev.parent);
> +     int i;
> +     u32 regval;
> +
> +     for (i = 0; i < MT6323_MAX_REGULATOR; i++) {
> +             if (mt6323_regulators[i].vselctrl_reg) {
> +                     if (regmap_read(mt6323->regmap,
> +                             mt6323_regulators[i].vselctrl_reg,
> +                             &regval) < 0) {
> +                             dev_err(&pdev->dev,
> +                                     "Failed to read buck ctrl\n");
> +                             return -EIO;
> +                     }
> +
> +                     if (regval & mt6323_regulators[i].vselctrl_mask) {
> +                             mt6323_regulators[i].desc.vsel_reg =
> +                             mt6323_regulators[i].vselon_reg;
> +                     }
> +             }
> +     }
> +
> +     return 0;
> +}
> +
> +static int mt6323_regulator_probe(struct platform_device *pdev)
> +{
> +     struct mt6397_chip *mt6323 = dev_get_drvdata(pdev->dev.parent);
> +     struct regulator_config config = {};
> +     struct regulator_dev *rdev;
> +     int i;
> +     u32 reg_value;
> +
> +     /* Query buck controller to select activated voltage register part */
> +     if (mt6323_set_buck_vosel_reg(pdev))
> +             return -EIO;
> +
> +     /* Read PMIC chip revision to update constraints and voltage table */
> +     if (regmap_read(mt6323->regmap, MT6323_CID, &reg_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);
> +
> +     for (i = 0; i < MT6323_MAX_REGULATOR; i++) {
> +             config.dev = &pdev->dev;
> +             config.driver_data = &mt6323_regulators[i];
> +             config.regmap = mt6323->regmap;
> +             rdev = devm_regulator_register(&pdev->dev,
> +                             &mt6323_regulators[i].desc, &config);
> +             if (IS_ERR(rdev)) {
> +                     dev_err(&pdev->dev, "failed to register %s\n",
> +                             mt6323_regulators[i].desc.name);
> +                     return PTR_ERR(rdev);
> +             }
> +     }
> +     return 0;
> +}
> +
> +static const struct platform_device_id mt6323_platform_ids[] = {
> +     {"mt6323-regulator", 0},
> +     { /* sentinel */ },
> +};
> +MODULE_DEVICE_TABLE(platform, mt6323_platform_ids);
> +
> +static const struct of_device_id mt6323_of_match[] = {
> +     { .compatible = "mediatek,mt6323-regulator", },
> +     { /* sentinel */ },
> +};
> +MODULE_DEVICE_TABLE(of, mt6323_of_match);
> +
> +static struct platform_driver mt6323_regulator_driver = {
> +     .driver = {
> +             .name = "mt6323-regulator",
> +             .of_match_table = of_match_ptr(mt6323_of_match),
> +     },
> +     .probe = mt6323_regulator_probe,
> +     .id_table = mt6323_platform_ids,
> +};
> +
> +module_platform_driver(mt6323_regulator_driver);
> +
> +MODULE_AUTHOR("Chen Zhong <chen.zh...@mediatek.com>");
> +MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6397 PMIC");
> +MODULE_LICENSE("GPL v2");
> diff --git a/include/linux/regulator/mt6323-regulator.h 
> b/include/linux/regulator/mt6323-regulator.h
> new file mode 100644
> index 0000000..67011cd
> --- /dev/null
> +++ b/include/linux/regulator/mt6323-regulator.h
> @@ -0,0 +1,52 @@
> +/*
> + * Copyright (c) 2016 MediaTek Inc.
> + * Author: Chen Zhong <chen.zh...@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_MT6323_H
> +#define __LINUX_REGULATOR_MT6323_H
> +
> +enum {
> +     MT6323_ID_VPROC = 0,
> +     MT6323_ID_VSYS,
> +     MT6323_ID_VPA,
> +     MT6323_ID_VTCXO,
> +     MT6323_ID_VCN28,
> +     MT6323_ID_VCN33_BT,
> +     MT6323_ID_VCN33_WIFI,
> +     MT6323_ID_VA,
> +     MT6323_ID_VCAMA,
> +     MT6323_ID_VIO28 = 9,
> +     MT6323_ID_VUSB,
> +     MT6323_ID_VMC,
> +     MT6323_ID_VMCH,
> +     MT6323_ID_VEMC3V3,
> +     MT6323_ID_VGP1,
> +     MT6323_ID_VGP2,
> +     MT6323_ID_VGP3,
> +     MT6323_ID_VCN18,
> +     MT6323_ID_VSIM1,
> +     MT6323_ID_VSIM2,
> +     MT6323_ID_VRTC,
> +     MT6323_ID_VCAMAF,
> +     MT6323_ID_VIBR,
> +     MT6323_ID_VRF18,
> +     MT6323_ID_VM,
> +     MT6323_ID_VIO18,
> +     MT6323_ID_VCAMD,
> +     MT6323_ID_VCAMIO,
> +     MT6323_ID_RG_MAX,
> +};
> +
> +#define MT6323_MAX_REGULATOR MT6323_ID_RG_MAX
> +
> +#endif /* __LINUX_REGULATOR_MT6323_H */
> 

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