[v2,2/2] power: supply: mt6360_charger: add MT6360 charger support

From: Gene Chen <gene_chen@richtek.com>

Add basic support for the battery charger for MT6360 PMIC

Signed-off-by: Gene Chen <gene_chen@richtek.com>
---
 drivers/power/supply/Kconfig          |   10 +
 drivers/power/supply/Makefile         |    1 +
 drivers/power/supply/mt6360_charger.c | 1022 +++++++++++++++++++++++++++++++++
 3 files changed, 1033 insertions(+)
 create mode 100644 drivers/power/supply/mt6360_charger.c

Dear Reviewers,

   Please let me know if there is anything need to be revised.

Gene Chen <gene.chen.richtek@gmail.com> 於 2020年11月3日 週二 下午6:41寫道：
>

> From: Gene Chen <gene_chen@richtek.com>

>

> Add basic support for the battery charger for MT6360 PMIC

>

> Signed-off-by: Gene Chen <gene_chen@richtek.com>

> ---

>  drivers/power/supply/Kconfig          |   10 +

>  drivers/power/supply/Makefile         |    1 +

>  drivers/power/supply/mt6360_charger.c | 1022 +++++++++++++++++++++++++++++++++

>  3 files changed, 1033 insertions(+)

>  create mode 100644 drivers/power/supply/mt6360_charger.c

>

> diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig

> index faf2830..e2d53a3 100644

> --- a/drivers/power/supply/Kconfig

> +++ b/drivers/power/supply/Kconfig

> @@ -562,6 +562,16 @@ config CHARGER_MP2629

>           Battery charger. This driver provides Battery charger power management

>           functions on the systems.

>

> +config CHARGER_MT6360

> +       tristate "Mediatek MT6360 Charger Driver"

> +       depends on MFD_MT6360

> +       depends on REGULATOR

> +       help

> +         Say Y here to enable MT6360 Charger Part.

> +         The device supports High-Accuracy Voltage/Current Regulation,

> +         Average Input Current Regulation, Battery Tempature Sensing,

> +         Over-Temperature Protection, DPDM Detection for BC1.2

> +

>  config CHARGER_QCOM_SMBB

>         tristate "Qualcomm Switch-Mode Battery Charger and Boost"

>         depends on MFD_SPMI_PMIC || COMPILE_TEST

> diff --git a/drivers/power/supply/Makefile b/drivers/power/supply/Makefile

> index b3c694a..9abecb9c 100644

> --- a/drivers/power/supply/Makefile

> +++ b/drivers/power/supply/Makefile

> @@ -77,6 +77,7 @@ obj-$(CONFIG_CHARGER_MAX77693)        += max77693_charger.o

>  obj-$(CONFIG_CHARGER_MAX8997)  += max8997_charger.o

>  obj-$(CONFIG_CHARGER_MAX8998)  += max8998_charger.o

>  obj-$(CONFIG_CHARGER_MP2629)   += mp2629_charger.o

> +obj-$(CONFIG_CHARGER_MT6360)   += mt6360_charger.o

>  obj-$(CONFIG_CHARGER_QCOM_SMBB)        += qcom_smbb.o

>  obj-$(CONFIG_CHARGER_BQ2415X)  += bq2415x_charger.o

>  obj-$(CONFIG_CHARGER_BQ24190)  += bq24190_charger.o

> diff --git a/drivers/power/supply/mt6360_charger.c b/drivers/power/supply/mt6360_charger.c

> new file mode 100644

> index 0000000..5631875

> --- /dev/null

> +++ b/drivers/power/supply/mt6360_charger.c

> @@ -0,0 +1,1022 @@

> +// SPDX-License-Identifier: GPL-2.0

> +/*

> + * Copyright (c) 2019 MediaTek Inc.

> + */

> +

> +#include <linux/init.h>

> +#include <linux/module.h>

> +#include <linux/kernel.h>

> +#include <linux/regmap.h>

> +#include <linux/platform_device.h>

> +#include <linux/of.h>

> +#include <linux/interrupt.h>

> +#include <linux/power_supply.h>

> +#include <linux/regulator/driver.h>

> +

> +#define MT6360_PMU_CHG_CTRL1   0x311

> +#define MT6360_PMU_CHG_CTRL2   0x312

> +#define MT6360_PMU_CHG_CTRL3   0x313

> +#define MT6360_PMU_CHG_CTRL4   0x314

> +#define MT6360_PMU_CHG_CTRL5   0x315

> +#define MT6360_PMU_CHG_CTRL6   0x316

> +#define MT6360_PMU_CHG_CTRL7   0x317

> +#define MT6360_PMU_CHG_CTRL8   0x318

> +#define MT6360_PMU_CHG_CTRL9   0x319

> +#define MT6360_PMU_CHG_CTRL10  0x31A

> +#define MT6360_PMU_CHG_CTRL11  0x31B

> +#define MT6360_PMU_CHG_CTRL12  0x31C

> +#define MT6360_PMU_CHG_CTRL13  0x31D

> +#define MT6360_PMU_DEVICE_TYPE 0x322

> +#define MT6360_PMU_USB_STATUS1 0x327

> +#define MT6360_PMU_CHG_CTRL17  0x32B

> +#define MT6360_PMU_CHG_CTRL18  0x32C

> +#define MT6360_PMU_CHG_STAT    0x34A

> +#define MT6360_PMU_CHG_CTRL19  0x361

> +#define MT6360_PMU_FOD_STAT    0x3E7

> +

> +/* MT6360_PMU_CHG_CTRL1 */

> +#define MT6360_FSLP_SHFT       (3)

> +#define MT6360_FSLP_MASK       BIT(MT6360_FSLP_SHFT)

> +#define MT6360_HIZ_SHFT                (2)

> +#define MT6360_HIZ_MASK                BIT(MT6360_HIZ_SHFT)

> +#define MT6360_OPA_MODE_SHFT   (0)

> +#define MT6360_OPA_MODE_MASK   BIT(MT6360_OPA_MODE_SHFT)

> +/* MT6360_PMU_CHG_CTRL2 */

> +#define MT6360_TE_SHFT         (4)

> +#define MT6360_TE_MASK         BIT(MT6360_TE_SHFT)

> +#define MT6360_IINLMTSEL_SHFT  (2)

> +#define MT6360_IINLMTSEL_MASK  GENMASK(3, 2)

> +#define MT6360_CHG_EN_SHFT     (0)

> +#define MT6360_CHG_EN_MASK     BIT(MT6360_CHG_EN_SHFT)

> +/* MT6360_PMU_CHG_CTRL3 */

> +#define MT6360_IAICR_SHFT      (2)

> +#define MT6360_IAICR_MASK      GENMASK(7, 2)

> +#define MT6360_ILIM_EN_MASK    BIT(0)

> +/* MT6360_PMU_CHG_CTRL4 */

> +#define MT6360_VOREG_SHFT      (1)

> +#define MT6360_VOREG_MASK      GENMASK(7, 1)

> +/* MT6360_PMU_CHG_CTRL5 */

> +#define MT6360_VOBST_MASK      GENMASK(7, 2)

> +/* MT6360_PMU_CHG_CTRL6 */

> +#define MT6360_VMIVR_SHFT      (1)

> +#define MT6360_VMIVR_MASK      GENMASK(7, 1)

> +/* MT6360_PMU_CHG_CTRL7 */

> +#define MT6360_ICHG_SHFT       (2)

> +#define MT6360_ICHG_MASK       GENMASK(7, 2)

> +/* MT6360_PMU_CHG_CTRL8 */

> +#define MT6360_IPREC_SHFT      (0)

> +#define MT6360_IPREC_MASK      GENMASK(3, 0)

> +/* MT6360_PMU_CHG_CTRL9 */

> +#define MT6360_IEOC_SHFT       (4)

> +#define MT6360_IEOC_MASK       GENMASK(7, 4)

> +/* MT6360_PMU_CHG_CTRL10 */

> +#define MT6360_LBP_SHFT                (4)

> +#define MT6360_LBP_MASK                GENMASK(7, 4)

> +#define MT6360_OTG_OC_SHFT     (0)

> +#define MT6360_OTG_OC_MASK     GENMASK(3, 0)

> +/* MT6360_PMU_CHG_CTRL11 */

> +#define MT6360_SYSREG_SHFT     (2)

> +#define MT6360_SYSREG_MASK     GENMASK(4, 2)

> +#define MT6360_VREC_SHFT       (0)

> +#define MT6360_VREC_MASK       GENMASK(2, 0)

> +/* MT6360_PMU_CHG_CTRL12 */

> +#define MT6360_WT_FC_SHFT      (5)

> +#define MT6360_WT_FC_MASK      GENMASK(7, 5)

> +/* MT6360_PMU_CHG_CTRL13 */

> +#define MT6360_CHG_WDT_EN_SHFT (7)

> +#define MT6360_CHG_WDT_EN_MASK BIT(MT6360_CHG_WDT_EN_SHFT)

> +#define MT6360_CHG_WDT_SHFT    (4)

> +#define MT6360_CHG_WDT_MASK    GENMASK(5, 4)

> +/* MT6360_PMU_DEVICE_TYPE */

> +#define MT6360_USBCHGEN_SHFT   (7)

> +#define MT6360_USBCHGEN_MASK   BIT(MT6360_USBCHGEN_SHFT)

> +/* MT6360_PMU_USB_STATUS1 */

> +#define MT6360_USB_STATUS_SHFT (4)

> +#define MT6360_USB_STATUS_MASK GENMASK(6, 4)

> +/* MT6360_PMU_CHG_CTRL18 */

> +#define MT6360_BAT_COMP_SHFT   (3)

> +#define MT6360_BAT_COMP_MASK   GENMASK(5, 3)

> +#define MT6360_VCLAMP_SHFT     (0)

> +#define MT6360_VCLAMP_MASK     GENMASK(2, 0)

> +/* MT6360_PMU_CHG_STAT */

> +#define MT6360_CHG_STAT_SHFT   (6)

> +#define MT6360_CHG_STAT_MASK   GENMASK(7, 6)

> +#define MT6360_VBAT_LVL_MASK   BIT(5)

> +/* MT6360_PMU_CHG_CTRL19 */

> +#define MT6360_VINOVP_SHFT     (5)

> +#define MT6360_VINOVP_MASK     GENMASK(6, 5)

> +/* MT6360_PMU_FOD_STAT */

> +#define MT6360_CHRDET_EXT_SHFT (4)

> +#define MT6360_CHRDET_EXT_MASK BIT(4)

> +

> +/* uA */

> +#define MT6360_ICHG_MIN                100000

> +#define MT6360_ICHG_MAX                5000000

> +#define MT6360_ICHG_STEP       100000

> +/* uV */

> +#define MT6360_VOREG_MIN       3900000

> +#define MT6360_VOREG_MAX       4710000

> +#define MT6360_VOREG_STEP      10000

> +/* uA */

> +#define MT6360_AICR_MIN                100000

> +#define MT6360_AICR_MAX                3250000

> +#define MT6360_AICR_STEP       50000

> +/* uA */

> +#define MT6360_IPREC_MIN       100000

> +#define MT6360_IPREC_MAX       850000

> +#define MT6360_IPREC_STEP      50000

> +/* uA */

> +#define MT6360_IEOC_MIN                100000

> +#define MT6360_IEOC_MAX                850000

> +#define MT6360_IEOC_STEP       50000

> +

> +struct mt6360_chg_platform_data {

> +       u32 vinovp;

> +};

> +

> +struct mt6360_chg_info {

> +       struct device *dev;

> +       struct mt6360_chg_platform_data *pdata;

> +       struct regmap *regmap;

> +       struct power_supply_desc psy_desc;

> +       struct power_supply *psy;

> +       struct regulator_dev *otg_rdev;

> +       struct mutex chgdet_lock;

> +       bool pwr_rdy;

> +       bool bc12_en;

> +       int psy_usb_type;

> +       struct work_struct chrdet_work;

> +};

> +

> +static struct mt6360_chg_platform_data def_platform_data = {

> +       .vinovp = 6500000,

> +};

> +

> +enum mt6360_iinlmtsel {

> +       MT6360_IINLMTSEL_AICR_3250 = 0,

> +       MT6360_IINLMTSEL_CHG_TYPE,

> +       MT6360_IINLMTSEL_AICR,

> +       MT6360_IINLMTSEL_LOWER_LEVEL,

> +};

> +

> +enum mt6360_pmu_chg_type {

> +       MT6360_CHG_TYPE_NOVBUS = 0,

> +       MT6360_CHG_TYPE_UNDER_GOING,

> +       MT6360_CHG_TYPE_SDP,

> +       MT6360_CHG_TYPE_SDPNSTD,

> +       MT6360_CHG_TYPE_DCP,

> +       MT6360_CHG_TYPE_CDP,

> +       MT6360_CHG_TYPE_MAX,

> +};

> +

> +static enum power_supply_usb_type mt6360_charger_usb_types[] = {

> +       POWER_SUPPLY_USB_TYPE_UNKNOWN,

> +       POWER_SUPPLY_USB_TYPE_SDP,

> +       POWER_SUPPLY_USB_TYPE_DCP,

> +       POWER_SUPPLY_USB_TYPE_CDP,

> +       POWER_SUPPLY_USB_TYPE_C,

> +       POWER_SUPPLY_USB_TYPE_PD,

> +       POWER_SUPPLY_USB_TYPE_PD_DRP,

> +       POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID

> +};

> +

> +static unsigned int mt6360_trans_reg_sel(u32 data, u32 min_val, u32 step,

> +                                               u32 max_sel)

> +{

> +       unsigned int target = 0;

> +

> +       if (data >= min_val)

> +               target = (data - min_val) / step;

> +       if (target > max_sel)

> +               target = max_sel;

> +       return target;

> +}

> +

> +static int mt6360_get_chrdet_ext_stat(struct mt6360_chg_info *mci,

> +                                            bool *pwr_rdy)

> +{

> +       int ret;

> +       unsigned int regval;

> +

> +       ret = regmap_read(mci->regmap, MT6360_PMU_FOD_STAT, &regval);

> +       if (ret < 0)

> +               return ret;

> +       *pwr_rdy = (regval & MT6360_CHRDET_EXT_MASK) ? true : false;

> +       return 0;

> +}

> +

> +static int mt6360_charger_get_online(struct mt6360_chg_info *mci,

> +                                    union power_supply_propval *val)

> +{

> +       int ret;

> +       bool pwr_rdy;

> +

> +       ret = mt6360_get_chrdet_ext_stat(mci, &pwr_rdy);

> +       if (ret < 0)

> +               return ret;

> +       val->intval = pwr_rdy ? true : false;

> +       return 0;

> +}

> +

> +static int mt6360_charger_get_status(struct mt6360_chg_info *mci,

> +                                    union power_supply_propval *val)

> +{

> +       int status, ret;

> +       unsigned int regval;

> +       bool pwr_rdy;

> +

> +       ret = mt6360_get_chrdet_ext_stat(mci, &pwr_rdy);

> +       if (ret < 0)

> +               return ret;

> +       if (!pwr_rdy) {

> +               status = POWER_SUPPLY_STATUS_DISCHARGING;

> +               goto out;

> +       }

> +

> +       ret = regmap_read(mci->regmap, MT6360_PMU_CHG_STAT, &regval);

> +       if (ret < 0)

> +               return ret;

> +       regval &= MT6360_CHG_STAT_MASK;

> +       regval >>= MT6360_CHG_STAT_SHFT;

> +       switch (regval) {

> +       case 0x0:

> +               status = POWER_SUPPLY_STATUS_NOT_CHARGING;

> +               break;

> +       case 0x1:

> +               status = POWER_SUPPLY_STATUS_CHARGING;

> +               break;

> +       case 0x2:

> +               status = POWER_SUPPLY_STATUS_FULL;

> +               break;

> +       default:

> +               ret = -EIO;

> +       }

> +out:

> +       if (!ret)

> +               val->intval = status;

> +       return ret;

> +}

> +

> +static int mt6360_charger_get_charge_type(struct mt6360_chg_info *mci,

> +                                         union power_supply_propval *val)

> +{

> +       int type, ret;

> +       unsigned int regval;

> +       u8 chg_stat;

> +

> +       ret = regmap_read(mci->regmap, MT6360_PMU_CHG_STAT, &regval);

> +       if (ret < 0)

> +               return ret;

> +

> +       chg_stat = (regval & MT6360_CHG_STAT_MASK) >> MT6360_CHG_STAT_SHFT;

> +       switch (chg_stat) {

> +       case 0x01: /* Charge in Progress */

> +               if (regval & MT6360_VBAT_LVL_MASK)

> +                       type = POWER_SUPPLY_CHARGE_TYPE_FAST;

> +               else

> +                       type = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;

> +               break;

> +       case 0x00: /* Not Charging */

> +       case 0x02: /* Charge Done */

> +       case 0x03: /* Charge Fault */

> +       default:

> +               type = POWER_SUPPLY_CHARGE_TYPE_NONE;

> +               break;

> +       }

> +

> +       val->intval = type;

> +       return 0;

> +}

> +

> +static int mt6360_charger_get_ichg(struct mt6360_chg_info *mci,

> +                                  union power_supply_propval *val)

> +{

> +       int ichg, ret;

> +       unsigned int regval;

> +

> +       ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL7, &regval);

> +       if (ret < 0)

> +               return ret;

> +       regval = (regval & MT6360_ICHG_MASK) >> MT6360_ICHG_SHFT;

> +       ichg = MT6360_ICHG_MIN + (regval * MT6360_ICHG_STEP);

> +       if (ichg > MT6360_ICHG_MAX)

> +               ichg = MT6360_ICHG_MAX;

> +       val->intval = ichg;

> +       return 0;

> +}

> +

> +static int mt6360_charger_get_max_ichg(struct mt6360_chg_info *mci,

> +                                      union power_supply_propval *val)

> +{

> +       val->intval = MT6360_ICHG_MAX;

> +       return 0;

> +}

> +

> +static int mt6360_charger_get_cv(struct mt6360_chg_info *mci,

> +                                union power_supply_propval *val)

> +{

> +       int cv, ret;

> +       unsigned int regval;

> +

> +       ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL4, &regval);

> +       if (ret < 0)

> +               return ret;

> +       regval = (regval & MT6360_VOREG_MASK) >> MT6360_VOREG_SHFT;

> +       cv = MT6360_VOREG_MIN + (regval * MT6360_VOREG_STEP);

> +       if (cv > MT6360_VOREG_MAX)

> +               cv = MT6360_VOREG_MAX;

> +       val->intval = cv;

> +       return 0;

> +}

> +

> +static int mt6360_charger_get_max_cv(struct mt6360_chg_info *mci,

> +                                    union power_supply_propval *val)

> +{

> +       val->intval = MT6360_VOREG_MAX;

> +       return 0;

> +}

> +

> +static int mt6360_charger_get_aicr(struct mt6360_chg_info *mci,

> +                                  union power_supply_propval *val)

> +{

> +       int ret;

> +       unsigned int regval;

> +

> +       ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL3, &regval);

> +       if (ret < 0)

> +               return ret;

> +       regval = (regval & MT6360_IAICR_MASK) >> MT6360_IAICR_SHFT;

> +       val->intval = MT6360_AICR_MIN + (regval * MT6360_AICR_STEP);

> +       return 0;

> +}

> +

> +static int mt6360_charger_get_iprechg(struct mt6360_chg_info *mci,

> +                                     union power_supply_propval *val)

> +{

> +       int ret;

> +       unsigned int regval;

> +

> +       ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL8, &regval);

> +       if (ret < 0)

> +               return ret;

> +       regval = (regval & MT6360_IPREC_MASK) >> MT6360_IPREC_SHFT;

> +       val->intval = MT6360_IPREC_MIN + (regval * MT6360_IPREC_STEP);

> +       return 0;

> +}

> +

> +static int mt6360_charger_get_ieoc(struct mt6360_chg_info *mci,

> +                                  union power_supply_propval *val)

> +{

> +       int ret;

> +       unsigned int regval;

> +

> +       ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL9, &regval);

> +       if (ret < 0)

> +               return ret;

> +       regval = (regval & MT6360_IEOC_MASK) >> MT6360_IEOC_SHFT;

> +       val->intval = MT6360_IEOC_MIN + (regval * MT6360_IEOC_STEP);

> +       return 0;

> +}

> +

> +static int mt6360_charger_set_online(struct mt6360_chg_info *mci,

> +                                    const union power_supply_propval *val)

> +{

> +       u8 force_sleep = val->intval ? 0 : 1;

> +

> +       return regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL1,

> +                                 MT6360_FSLP_MASK,

> +                                 force_sleep << MT6360_FSLP_SHFT);

> +}

> +

> +static int mt6360_charger_set_ichg(struct mt6360_chg_info *mci,

> +                                  const union power_supply_propval *val)

> +{

> +       unsigned int regval;

> +

> +       regval = mt6360_trans_reg_sel(val->intval, 100000, 100000, 0x31);

> +       return regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL7,

> +                                 MT6360_ICHG_MASK, regval << MT6360_ICHG_SHFT);

> +}

> +

> +static int mt6360_charger_set_cv(struct mt6360_chg_info *mci,

> +                                const union power_supply_propval *val)

> +{

> +       unsigned int regval;

> +

> +       regval = mt6360_trans_reg_sel(val->intval, 3900000, 10000, 0x51);

> +       return regmap_update_bits(mci->regmap,

> +                                 MT6360_PMU_CHG_CTRL4,

> +                                 MT6360_VOREG_MASK,

> +                                 regval << MT6360_VOREG_SHFT);

> +}

> +

> +static int mt6360_charger_set_aicr(struct mt6360_chg_info *mci,

> +                                  const union power_supply_propval *val)

> +{

> +       unsigned int regval;

> +

> +       regval = mt6360_trans_reg_sel(val->intval, 100000, 50000, 0x3F);

> +       return regmap_update_bits(mci->regmap,

> +                                 MT6360_PMU_CHG_CTRL3,

> +                                 MT6360_IAICR_MASK,

> +                                 regval << MT6360_IAICR_SHFT);

> +}

> +

> +static int mt6360_charger_set_iprechg(struct mt6360_chg_info *mci,

> +                                     const union power_supply_propval *val)

> +{

> +       unsigned int regval;

> +

> +       regval = mt6360_trans_reg_sel(val->intval, 100000, 50000, 0x0F);

> +       return regmap_update_bits(mci->regmap,

> +                                 MT6360_PMU_CHG_CTRL8,

> +                                 MT6360_IPREC_MASK,

> +                                 regval << MT6360_IPREC_SHFT);

> +}

> +

> +static int mt6360_charger_set_ieoc(struct mt6360_chg_info *mci,

> +                                  const union power_supply_propval *val)

> +{

> +       unsigned int regval;

> +

> +       regval = mt6360_trans_reg_sel(val->intval, 100000, 50000, 0x0F);

> +       return regmap_update_bits(mci->regmap,

> +                                 MT6360_PMU_CHG_CTRL9,

> +                                 MT6360_IEOC_MASK,

> +                                 regval << MT6360_IEOC_SHFT);

> +}

> +

> +static int mt6360_charger_get_property(struct power_supply *psy,

> +                                      enum power_supply_property psp,

> +                                      union power_supply_propval *val)

> +{

> +       struct mt6360_chg_info *mci = power_supply_get_drvdata(psy);

> +       int ret = 0;

> +

> +       dev_dbg(mci->dev, "%s: prop = %d\n", __func__, psp);

> +       switch (psp) {

> +       case POWER_SUPPLY_PROP_ONLINE:

> +               ret = mt6360_charger_get_online(mci, val);

> +               break;

> +       case POWER_SUPPLY_PROP_STATUS:

> +               ret = mt6360_charger_get_status(mci, val);

> +               break;

> +       case POWER_SUPPLY_PROP_CHARGE_TYPE:

> +               ret = mt6360_charger_get_charge_type(mci, val);

> +               break;

> +       case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:

> +               ret = mt6360_charger_get_ichg(mci, val);

> +               break;

> +       case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:

> +               ret = mt6360_charger_get_max_ichg(mci, val);

> +               break;

> +       case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:

> +               ret = mt6360_charger_get_cv(mci, val);

> +               break;

> +       case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:

> +               ret = mt6360_charger_get_max_cv(mci, val);

> +               break;

> +       case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:

> +               ret = mt6360_charger_get_aicr(mci, val);

> +               break;

> +       case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:

> +               ret = mt6360_charger_get_iprechg(mci, val);

> +               break;

> +       case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:

> +               ret = mt6360_charger_get_ieoc(mci, val);

> +               break;

> +       case POWER_SUPPLY_PROP_USB_TYPE:

> +               val->intval = mci->psy_usb_type;

> +               break;

> +       default:

> +               ret = -ENODATA;

> +       }

> +       return ret;

> +}

> +

> +static int mt6360_charger_set_property(struct power_supply *psy,

> +                                      enum power_supply_property psp,

> +                                      const union power_supply_propval *val)

> +{

> +       struct mt6360_chg_info *mci = power_supply_get_drvdata(psy);

> +       int ret;

> +

> +       dev_dbg(mci->dev, "%s: prop = %d\n", __func__, psp);

> +       switch (psp) {

> +       case POWER_SUPPLY_PROP_ONLINE:

> +               ret = mt6360_charger_set_online(mci, val);

> +               break;

> +       case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:

> +               ret = mt6360_charger_set_ichg(mci, val);

> +               break;

> +       case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:

> +               ret = mt6360_charger_set_cv(mci, val);

> +               break;

> +       case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:

> +               ret = mt6360_charger_set_aicr(mci, val);

> +               break;

> +       case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:

> +               ret = mt6360_charger_set_iprechg(mci, val);

> +               break;

> +       case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:

> +               ret = mt6360_charger_set_ieoc(mci, val);

> +               break;

> +       default:

> +               ret = -EINVAL;

> +       }

> +       return ret;

> +}

> +

> +static int mt6360_charger_property_is_writeable(struct power_supply *psy,

> +                                              enum power_supply_property psp)

> +{

> +       switch (psp) {

> +       case POWER_SUPPLY_PROP_ONLINE:

> +       case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:

> +       case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:

> +       case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:

> +       case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:

> +       case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:

> +               return 1;

> +       default:

> +               return 0;

> +       }

> +}

> +

> +static enum power_supply_property mt6360_charger_properties[] = {

> +       POWER_SUPPLY_PROP_ONLINE,

> +       POWER_SUPPLY_PROP_STATUS,

> +       POWER_SUPPLY_PROP_CHARGE_TYPE,

> +       POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,

> +       POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,

> +       POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,

> +       POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,

> +       POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,

> +       POWER_SUPPLY_PROP_PRECHARGE_CURRENT,

> +       POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,

> +       POWER_SUPPLY_PROP_USB_TYPE,

> +};

> +

> +static char *mt6360_charger_supplied_to[] = {

> +       "main-battery"

> +};

> +

> +static const struct power_supply_desc mt6360_charger_desc = {

> +       .type                   = POWER_SUPPLY_TYPE_USB,

> +       .properties             = mt6360_charger_properties,

> +       .num_properties         = ARRAY_SIZE(mt6360_charger_properties),

> +       .get_property           = mt6360_charger_get_property,

> +       .set_property           = mt6360_charger_set_property,

> +       .property_is_writeable  = mt6360_charger_property_is_writeable,

> +       .usb_types              = mt6360_charger_usb_types,

> +       .num_usb_types          = ARRAY_SIZE(mt6360_charger_usb_types),

> +};

> +

> +static const struct regulator_ops mt6360_chg_otg_ops = {

> +       .list_voltage = regulator_list_voltage_linear,

> +       .enable = regulator_enable_regmap,

> +       .disable = regulator_disable_regmap,

> +       .is_enabled = regulator_is_enabled_regmap,

> +       .set_voltage_sel = regulator_set_voltage_sel_regmap,

> +       .get_voltage_sel = regulator_get_voltage_sel_regmap,

> +};

> +

> +static const struct regulator_desc mt6360_otg_rdesc = {

> +       .of_match = "usb-otg-vbus",

> +       .name = "usb-otg-vbus",

> +       .ops = &mt6360_chg_otg_ops,

> +       .owner = THIS_MODULE,

> +       .type = REGULATOR_VOLTAGE,

> +       .min_uV = 4425000,

> +       .uV_step = 25000, /* step  25mV */

> +       .n_voltages = 57, /* 4425mV to 5825mV */

> +       .vsel_reg = MT6360_PMU_CHG_CTRL5,

> +       .vsel_mask = MT6360_VOBST_MASK,

> +       .enable_reg = MT6360_PMU_CHG_CTRL1,

> +       .enable_mask = MT6360_OPA_MODE_MASK,

> +};

> +

> +static irqreturn_t mt6360_pmu_attach_i_handler(int irq, void *data)

> +{

> +       struct mt6360_chg_info *mci = data;

> +       int ret;

> +       unsigned int usb_status;

> +       int last_usb_type;

> +

> +       dev_dbg(mci->dev, "%s\n", __func__);

> +       mutex_lock(&mci->chgdet_lock);

> +       if (!mci->bc12_en) {

> +               dev_info(mci->dev, "%s: bc12 disabled, ignore irq\n", __func__);

> +               goto out;

> +       }

> +       last_usb_type = mci->psy_usb_type;

> +       /* Plug in */

> +       ret = regmap_read(mci->regmap, MT6360_PMU_USB_STATUS1, &usb_status);

> +       if (ret < 0)

> +               goto out;

> +       usb_status &= MT6360_USB_STATUS_MASK;

> +       usb_status >>= MT6360_USB_STATUS_SHFT;

> +       switch (usb_status) {

> +       case MT6360_CHG_TYPE_UNDER_GOING:

> +               dev_info(mci->dev, "%s: under going...\n", __func__);

> +               goto out;

> +       case MT6360_CHG_TYPE_SDP:

> +               mci->psy_usb_type = POWER_SUPPLY_USB_TYPE_SDP;

> +               break;

> +       case MT6360_CHG_TYPE_SDPNSTD:

> +               mci->psy_usb_type = POWER_SUPPLY_USB_TYPE_SDP;

> +               break;

> +       case MT6360_CHG_TYPE_CDP:

> +               mci->psy_usb_type = POWER_SUPPLY_USB_TYPE_CDP;

> +               break;

> +       case MT6360_CHG_TYPE_DCP:

> +               mci->psy_usb_type = POWER_SUPPLY_USB_TYPE_DCP;

> +               break;

> +       default:

> +               dev_warn(mci->dev,

> +                        "%s: disconnect or unknown status\n", __func__);

> +               goto out;

> +       }

> +

> +       dev_info(mci->dev, "%s: chg_type = %d\n", __func__, mci->psy_usb_type);

> +       if (last_usb_type != mci->psy_usb_type)

> +               power_supply_changed(mci->psy);

> +out:

> +       mutex_unlock(&mci->chgdet_lock);

> +       return IRQ_HANDLED;

> +}

> +

> +static void mt6360_handle_chrdet_ext_evt(struct mt6360_chg_info *mci)

> +{

> +       int ret;

> +       bool pwr_rdy;

> +       int last_usb_type;

> +

> +       mutex_lock(&mci->chgdet_lock);

> +       ret = mt6360_get_chrdet_ext_stat(mci, &pwr_rdy);

> +       if (ret < 0)

> +               goto out;

> +       if (mci->pwr_rdy == pwr_rdy) {

> +               dev_info(mci->dev,

> +                        "%s: pwr_rdy is same(%d)\n", __func__, pwr_rdy);

> +               goto out;

> +       }

> +       mci->pwr_rdy = pwr_rdy;

> +       last_usb_type = mci->psy_usb_type;

> +       dev_info(mci->dev, "%s: pwr_rdy = %d\n", __func__, pwr_rdy);

> +       if (!pwr_rdy) {

> +               mci->psy_usb_type = POWER_SUPPLY_USB_TYPE_UNKNOWN;

> +               if (last_usb_type != mci->psy_usb_type)

> +                       power_supply_changed(mci->psy);

> +

> +       }

> +       ret = regmap_update_bits(mci->regmap,

> +                                MT6360_PMU_DEVICE_TYPE,

> +                                MT6360_USBCHGEN_MASK,

> +                                pwr_rdy ? MT6360_USBCHGEN_MASK : 0);

> +       if (ret < 0)

> +               goto out;

> +       mci->bc12_en = pwr_rdy;

> +out:

> +       mutex_unlock(&mci->chgdet_lock);

> +}

> +

> +static void mt6360_chrdet_work(struct work_struct *work)

> +{

> +       struct mt6360_chg_info *mci = (struct mt6360_chg_info *)container_of(

> +                                    work, struct mt6360_chg_info, chrdet_work);

> +

> +       dev_info(mci->dev, "%s\n", __func__);

> +       mt6360_handle_chrdet_ext_evt(mci);

> +}

> +

> +static irqreturn_t mt6360_pmu_chrdet_ext_evt_handler(int irq, void *data)

> +{

> +       struct mt6360_chg_info *mci = data;

> +

> +       dev_info(mci->dev, "%s\n", __func__);

> +       mt6360_handle_chrdet_ext_evt(mci);

> +       return IRQ_HANDLED;

> +}

> +

> +static int mt6360_chg_irq_register(struct platform_device *pdev)

> +{

> +       const struct {

> +               const char *name;

> +               irq_handler_t handler;

> +       } irq_descs[] = {

> +               { "attach_i", mt6360_pmu_attach_i_handler },

> +               { "chrdet_ext_evt", mt6360_pmu_chrdet_ext_evt_handler }

> +       };

> +       int i, ret;

> +

> +       for (i = 0; i < ARRAY_SIZE(irq_descs); i++) {

> +               ret = platform_get_irq_byname(pdev, irq_descs[i].name);

> +               if (ret < 0)

> +                       return ret;

> +

> +               ret = devm_request_threaded_irq(&pdev->dev, ret, NULL,

> +                                               irq_descs[i].handler,

> +                                               IRQF_TRIGGER_FALLING,

> +                                               irq_descs[i].name,

> +                                               platform_get_drvdata(pdev));

> +               if (ret < 0) {

> +                       dev_err(&pdev->dev,

> +                               "request %s irq fail\n", irq_descs[i].name);

> +                       return ret;

> +               }

> +       }

> +

> +       return 0;

> +}

> +

> +struct mt6360_field_info {

> +       struct device_attribute dev_attr;

> +       u16 reg;

> +       u8 mask;

> +       u8 shft;

> +};

> +

> +static ssize_t mt6360_sysfs_show(struct device *dev,

> +               struct device_attribute *attr, char *buf);

> +static ssize_t mt6360_sysfs_store(struct device *dev,

> +               struct device_attribute *attr, const char *buf, size_t count);

> +

> +#define MT6360_FIELD_RW(_name, _reg, _nbit)                    \

> +{                                                              \

> +       .dev_attr = __ATTR(_name, 0664,                         \

> +                      mt6360_sysfs_show, mt6360_sysfs_store),  \

> +       .reg    = MT6360_PMU_##_reg,                            \

> +       .mask   = MT6360_##_nbit##_MASK,                                \

> +       .shft   = MT6360_##_nbit##_SHFT,                                \

> +}

> +

> +#define MT6360_FIELD_RO(_name, _reg, _nbit)                    \

> +{                                                              \

> +       .dev_attr = __ATTR(_name, 0444,                         \

> +                       mt6360_sysfs_show, NULL),               \

> +       .reg    = MT6360_PMU_##_reg,                            \

> +       .mask   = MT6360_##_nbit##_MASK,                        \

> +       .shft   = MT6360_##_nbit##_SHFT,                        \

> +}

> +

> +static struct mt6360_field_info mt6360_field_tbl[] = {

> +       MT6360_FIELD_RW(hiz,            CHG_CTRL1,      HIZ),

> +       MT6360_FIELD_RW(vmivr,          CHG_CTRL6,      VMIVR),

> +       MT6360_FIELD_RW(iaicr,          CHG_CTRL3,      IAICR),

> +       MT6360_FIELD_RW(SYSREG,         CHG_CTRL11,     SYSREG),

> +       MT6360_FIELD_RW(otg_oc,         CHG_CTRL10,     OTG_OC),

> +       MT6360_FIELD_RW(ichg,           CHG_CTRL17,     ICHG),

> +       MT6360_FIELD_RW(iprec,          CHG_CTRL8,      IPREC),

> +       MT6360_FIELD_RW(ieoc,           CHG_CTRL9,      IEOC),

> +       MT6360_FIELD_RW(voreg,          CHG_CTRL4,      VOREG),

> +       MT6360_FIELD_RW(lbp,            CHG_CTRL10,     LBP),

> +       MT6360_FIELD_RW(vrec,           CHG_CTRL11,     VREC),

> +       MT6360_FIELD_RW(te,             CHG_CTRL2,      TE),

> +       MT6360_FIELD_RW(chg_wdt_en,     CHG_CTRL13,     CHG_WDT_EN),

> +       MT6360_FIELD_RW(chg_wdt,        CHG_CTRL13,     CHG_WDT),

> +       MT6360_FIELD_RW(wt_fc,          CHG_CTRL12,     WT_FC),

> +       MT6360_FIELD_RW(bat_comp,       CHG_CTRL18,     BAT_COMP),

> +       MT6360_FIELD_RW(vclamp,         CHG_CTRL18,     VCLAMP),

> +       MT6360_FIELD_RW(usbchgen,       DEVICE_TYPE,    USBCHGEN),

> +       MT6360_FIELD_RW(chg_en,         CHG_CTRL2,      CHG_EN),

> +       MT6360_FIELD_RO(chrdet_ext,     FOD_STAT,       CHRDET_EXT),

> +};

> +

> +static struct attribute *mt6360_attrs[ARRAY_SIZE(mt6360_field_tbl) + 1];

> +

> +static const struct attribute_group mt6360_attr_group = {

> +       .attrs = mt6360_attrs,

> +};

> +

> +static ssize_t mt6360_sysfs_show(struct device *dev,

> +                                struct device_attribute *attr, char *buf)

> +{

> +       struct mt6360_chg_info *mci = dev_get_drvdata(dev->parent);

> +       struct mt6360_field_info *info = (void *)attr;

> +       unsigned int regval;

> +       int ret;

> +

> +       ret = regmap_read(mci->regmap, info->reg, &regval);

> +       if (ret < 0)

> +               return ret;

> +       regval = (regval & info->mask) >> info->shft;

> +       return scnprintf(buf, PAGE_SIZE, "%02x\n", regval);

> +}

> +

> +static ssize_t mt6360_sysfs_store(struct device *dev,

> +                  struct device_attribute *attr, const char *buf, size_t count)

> +{

> +       struct mt6360_chg_info *mci = dev_get_drvdata(dev->parent);

> +       struct mt6360_field_info *info = (void *)attr;

> +       int ret, tmp;

> +

> +       if (kstrtoint(buf, 10, &tmp) < 0) {

> +               dev_err(dev, "failed to parsing number\n");

> +               return -EINVAL;

> +       }

> +       ret = regmap_update_bits(mci->regmap,

> +                                info->reg, info->mask, tmp << info->shft);

> +       if (ret < 0)

> +               return ret;

> +       return count;

> +}

> +

> +static int mt6360_sysfs_create_group(struct mt6360_chg_info *mci)

> +{

> +       int i, tb_size = ARRAY_SIZE(mt6360_field_tbl);

> +

> +       for (i = 0; i < tb_size; i++)

> +               mt6360_attrs[i] = &(mt6360_field_tbl[i].dev_attr.attr);

> +       return devm_device_add_group(&mci->psy->dev, &mt6360_attr_group);

> +}

> +

> +static int mt6360_chg_init_setting(struct mt6360_chg_info *mci)

> +{

> +       int ret;

> +

> +       /* Disable bc12 */

> +       ret = regmap_update_bits(mci->regmap, MT6360_PMU_DEVICE_TYPE,

> +                                MT6360_USBCHGEN_MASK, 0);

> +       if (ret < 0) {

> +               dev_err(mci->dev, "%s: disable bc12 fail\n", __func__);

> +               goto out;

> +       }

> +       /* Set input current limit select by AICR */

> +       ret = regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL2,

> +                                MT6360_IINLMTSEL_MASK,

> +                                MT6360_IINLMTSEL_AICR <<

> +                                       MT6360_IINLMTSEL_SHFT);

> +       if (ret < 0) {

> +               dev_err(mci->dev,

> +                       "%s: switch iinlmtsel to aicr fail\n", __func__);

> +               goto out;

> +       }

> +       usleep_range(5000, 6000);

> +       /* Disable ilim */

> +       ret = regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL3,

> +                                MT6360_ILIM_EN_MASK, 0);

> +       if (ret < 0) {

> +               dev_err(mci->dev,

> +                       "%s: switch iinlmtsel to aicr fail\n", __func__);

> +               goto out;

> +       }

> +       /* Enlarge OTG_OC to max 3A */

> +       ret = regmap_update_bits(mci->regmap,

> +                                MT6360_PMU_CHG_CTRL10, 0x07, 0x07);

> +       if (ret < 0) {

> +               dev_err(mci->dev,

> +                       "%s: faled config otg oc to maximum\n", __func__);

> +       }

> +out:

> +       return ret;

> +}

> +

> +static u32 mt6360_vinovp_trans_to_sel(u32 val)

> +{

> +       u32 vinovp_tbl[] = { 5500000, 6500000, 11000000, 14500000 };

> +       int i;

> +

> +       /* Select the smaller and equal supported value */

> +       for (i = 0; i < ARRAY_SIZE(vinovp_tbl)-1; i++) {

> +               if (val < vinovp_tbl[i+1])

> +                       break;

> +       }

> +       return i;

> +}

> +

> +static struct mt6360_chg_platform_data *mt6360_parse_pdata(

> +                                                  struct platform_device *pdev)

> +{

> +       struct mt6360_chg_platform_data *pdata = dev_get_platdata(&pdev->dev);

> +       struct device_node *np = pdev->dev.of_node;

> +       int ret;

> +

> +       pdata = kmemdup(&def_platform_data, sizeof(*pdata), GFP_KERNEL);

> +       ret = of_property_read_u32(np, "richtek,vinovp-microvolt", &pdata->vinovp);

> +       if (ret) {

> +               dev_err(&pdev->dev, "failed to parse vinovp in DT\n");

> +               return ERR_PTR(ret);

> +       }

> +       return pdata;

> +}

> +

> +static int mt6360_apply_pdata(struct platform_device *pdev)

> +{

> +       struct mt6360_chg_platform_data *pdata = dev_get_platdata(&pdev->dev);

> +       struct mt6360_chg_info *mci = dev_get_drvdata(&pdev->dev);

> +       int ret;

> +       u32 sel;

> +

> +       sel = mt6360_vinovp_trans_to_sel(pdata->vinovp);

> +       ret = regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL19,

> +                                MT6360_VINOVP_MASK, sel << MT6360_VINOVP_SHFT);

> +       if (ret)

> +               return ret;

> +       return 0;

> +}

> +

> +static int mt6360_charger_probe(struct platform_device *pdev)

> +{

> +       struct mt6360_chg_platform_data *pdata = dev_get_platdata(&pdev->dev);

> +       struct mt6360_chg_info *mci;

> +       struct power_supply_config charger_cfg = {};

> +       struct regulator_config config = { };

> +       int ret;

> +

> +       mci = devm_kzalloc(&pdev->dev, sizeof(*mci), GFP_KERNEL);

> +       if (!mci)

> +               return -ENOMEM;

> +

> +       pdata = mt6360_parse_pdata(pdev);

> +       if (IS_ERR_OR_NULL(pdata))

> +               return PTR_ERR(pdata);

> +

> +       pdev->dev.platform_data = pdata;

> +

> +       mci->dev = &pdev->dev;

> +       mutex_init(&mci->chgdet_lock);

> +       platform_set_drvdata(pdev, mci);

> +       INIT_WORK(&mci->chrdet_work, &mt6360_chrdet_work);

> +

> +       mci->regmap = dev_get_regmap(pdev->dev.parent, NULL);

> +       if (!mci->regmap) {

> +               dev_err(&pdev->dev, "Failed to get parent regmap\n");

> +               return -ENODEV;

> +       }

> +

> +       ret = mt6360_apply_pdata(pdev);

> +       if (ret) {

> +               dev_err(&pdev->dev, "Failed to apply pdata\n");

> +               return ret;

> +       }

> +

> +       memcpy(&mci->psy_desc, &mt6360_charger_desc, sizeof(mci->psy_desc));

> +       mci->psy_desc.name = dev_name(&pdev->dev);

> +       charger_cfg.drv_data = mci;

> +       charger_cfg.of_node = pdev->dev.of_node;

> +       charger_cfg.supplied_to = mt6360_charger_supplied_to;

> +       charger_cfg.num_supplicants = ARRAY_SIZE(mt6360_charger_supplied_to);

> +       mci->psy = devm_power_supply_register(&pdev->dev,

> +                                             &mci->psy_desc, &charger_cfg);

> +       if (IS_ERR(mci->psy)) {

> +               dev_err(&pdev->dev, "Failed to register power supply dev\n");

> +               return PTR_ERR(mci->psy);

> +       }

> +

> +       ret = mt6360_chg_init_setting(mci);

> +       if (ret) {

> +               dev_err(&pdev->dev, "Failed to initial setting\n");

> +               return ret;

> +       }

> +

> +       schedule_work(&mci->chrdet_work);

> +

> +       ret = mt6360_chg_irq_register(pdev);

> +       if (ret) {

> +               dev_err(&pdev->dev, "Failed to register irqs\n");

> +               return ret;

> +       }

> +

> +       config.dev = &pdev->dev;

> +       config.regmap = mci->regmap;

> +       mci->otg_rdev = devm_regulator_register(&pdev->dev, &mt6360_otg_rdesc,

> +                                               &config);

> +       if (IS_ERR(mci->otg_rdev))

> +               return PTR_ERR(mci->otg_rdev);

> +

> +       ret = mt6360_sysfs_create_group(mci);

> +       if (ret) {

> +               dev_err(&pdev->dev,

> +                       "%s: create sysfs attrs fail\n", __func__);

> +               return ret;

> +       }

> +

> +       return 0;

> +}

> +

> +static const struct of_device_id __maybe_unused mt6360_charger_of_id[] = {

> +       { .compatible = "mediatek,mt6360-chg", },

> +       {},

> +};

> +MODULE_DEVICE_TABLE(of, mt6360_charger_of_id);

> +

> +static const struct platform_device_id mt6360_charger_id[] = {

> +       { "mt6360-chg", 0 },

> +       {},

> +};

> +MODULE_DEVICE_TABLE(platform, mt6360_charger_id);

> +

> +static struct platform_driver mt6360_charger_driver = {

> +       .driver = {

> +               .name = "mt6360-chg",

> +               .of_match_table = of_match_ptr(mt6360_charger_of_id),

> +       },

> +       .probe = mt6360_charger_probe,

> +       .id_table = mt6360_charger_id,

> +};

> +module_platform_driver(mt6360_charger_driver);

> +

> +MODULE_AUTHOR("CY_Huang <cy_huang@richtek.com>");

> +MODULE_DESCRIPTION("MT6360 Charger Driver");

> +MODULE_LICENSE("GPL");

> --

> 2.7.4

>

Resend again,

Gene Chen <gene.chen.richtek@gmail.com> 於 2020年11月19日 週四 上午10:24寫道：
>
> Dear Reviewers,
>
>    Please let me know if there is anything need to be revised.
>
> Gene Chen <gene.chen.richtek@gmail.com> 於 2020年11月3日 週二 下午6:41寫道：
> >
> > From: Gene Chen <gene_chen@richtek.com>
> >
> > Add basic support for the battery charger for MT6360 PMIC
> >
> > Signed-off-by: Gene Chen <gene_chen@richtek.com>
> > ---
> >  drivers/power/supply/Kconfig          |   10 +
> >  drivers/power/supply/Makefile         |    1 +
> >  drivers/power/supply/mt6360_charger.c | 1022 +++++++++++++++++++++++++++++++++
> >  3 files changed, 1033 insertions(+)
> >  create mode 100644 drivers/power/supply/mt6360_charger.c
> >
> > diff --git a/drivers/power/supply/Kconfig b/drivers/power/supply/Kconfig
> > index faf2830..e2d53a3 100644
> > --- a/drivers/power/supply/Kconfig
> > +++ b/drivers/power/supply/Kconfig
> > @@ -562,6 +562,16 @@ config CHARGER_MP2629
> >           Battery charger. This driver provides Battery charger power management
> >           functions on the systems.
> >
> > +config CHARGER_MT6360
> > +       tristate "Mediatek MT6360 Charger Driver"
> > +       depends on MFD_MT6360
> > +       depends on REGULATOR
> > +       help
> > +         Say Y here to enable MT6360 Charger Part.
> > +         The device supports High-Accuracy Voltage/Current Regulation,
> > +         Average Input Current Regulation, Battery Tempature Sensing,
> > +         Over-Temperature Protection, DPDM Detection for BC1.2
> > +
> >  config CHARGER_QCOM_SMBB
> >         tristate "Qualcomm Switch-Mode Battery Charger and Boost"
> >         depends on MFD_SPMI_PMIC || COMPILE_TEST
> > diff --git a/drivers/power/supply/Makefile b/drivers/power/supply/Makefile
> > index b3c694a..9abecb9c 100644
> > --- a/drivers/power/supply/Makefile
> > +++ b/drivers/power/supply/Makefile
> > @@ -77,6 +77,7 @@ obj-$(CONFIG_CHARGER_MAX77693)        += max77693_charger.o
> >  obj-$(CONFIG_CHARGER_MAX8997)  += max8997_charger.o
> >  obj-$(CONFIG_CHARGER_MAX8998)  += max8998_charger.o
> >  obj-$(CONFIG_CHARGER_MP2629)   += mp2629_charger.o
> > +obj-$(CONFIG_CHARGER_MT6360)   += mt6360_charger.o
> >  obj-$(CONFIG_CHARGER_QCOM_SMBB)        += qcom_smbb.o
> >  obj-$(CONFIG_CHARGER_BQ2415X)  += bq2415x_charger.o
> >  obj-$(CONFIG_CHARGER_BQ24190)  += bq24190_charger.o
> > diff --git a/drivers/power/supply/mt6360_charger.c b/drivers/power/supply/mt6360_charger.c
> > new file mode 100644
> > index 0000000..5631875
> > --- /dev/null
> > +++ b/drivers/power/supply/mt6360_charger.c
> > @@ -0,0 +1,1022 @@
> > +// SPDX-License-Identifier: GPL-2.0
> > +/*
> > + * Copyright (c) 2019 MediaTek Inc.
> > + */
> > +
> > +#include <linux/init.h>
> > +#include <linux/module.h>
> > +#include <linux/kernel.h>
> > +#include <linux/regmap.h>
> > +#include <linux/platform_device.h>
> > +#include <linux/of.h>
> > +#include <linux/interrupt.h>
> > +#include <linux/power_supply.h>
> > +#include <linux/regulator/driver.h>
> > +
> > +#define MT6360_PMU_CHG_CTRL1   0x311
> > +#define MT6360_PMU_CHG_CTRL2   0x312
> > +#define MT6360_PMU_CHG_CTRL3   0x313
> > +#define MT6360_PMU_CHG_CTRL4   0x314
> > +#define MT6360_PMU_CHG_CTRL5   0x315
> > +#define MT6360_PMU_CHG_CTRL6   0x316
> > +#define MT6360_PMU_CHG_CTRL7   0x317
> > +#define MT6360_PMU_CHG_CTRL8   0x318
> > +#define MT6360_PMU_CHG_CTRL9   0x319
> > +#define MT6360_PMU_CHG_CTRL10  0x31A
> > +#define MT6360_PMU_CHG_CTRL11  0x31B
> > +#define MT6360_PMU_CHG_CTRL12  0x31C
> > +#define MT6360_PMU_CHG_CTRL13  0x31D
> > +#define MT6360_PMU_DEVICE_TYPE 0x322
> > +#define MT6360_PMU_USB_STATUS1 0x327
> > +#define MT6360_PMU_CHG_CTRL17  0x32B
> > +#define MT6360_PMU_CHG_CTRL18  0x32C
> > +#define MT6360_PMU_CHG_STAT    0x34A
> > +#define MT6360_PMU_CHG_CTRL19  0x361
> > +#define MT6360_PMU_FOD_STAT    0x3E7
> > +
> > +/* MT6360_PMU_CHG_CTRL1 */
> > +#define MT6360_FSLP_SHFT       (3)
> > +#define MT6360_FSLP_MASK       BIT(MT6360_FSLP_SHFT)
> > +#define MT6360_HIZ_SHFT                (2)
> > +#define MT6360_HIZ_MASK                BIT(MT6360_HIZ_SHFT)
> > +#define MT6360_OPA_MODE_SHFT   (0)
> > +#define MT6360_OPA_MODE_MASK   BIT(MT6360_OPA_MODE_SHFT)
> > +/* MT6360_PMU_CHG_CTRL2 */
> > +#define MT6360_TE_SHFT         (4)
> > +#define MT6360_TE_MASK         BIT(MT6360_TE_SHFT)
> > +#define MT6360_IINLMTSEL_SHFT  (2)
> > +#define MT6360_IINLMTSEL_MASK  GENMASK(3, 2)
> > +#define MT6360_CHG_EN_SHFT     (0)
> > +#define MT6360_CHG_EN_MASK     BIT(MT6360_CHG_EN_SHFT)
> > +/* MT6360_PMU_CHG_CTRL3 */
> > +#define MT6360_IAICR_SHFT      (2)
> > +#define MT6360_IAICR_MASK      GENMASK(7, 2)
> > +#define MT6360_ILIM_EN_MASK    BIT(0)
> > +/* MT6360_PMU_CHG_CTRL4 */
> > +#define MT6360_VOREG_SHFT      (1)
> > +#define MT6360_VOREG_MASK      GENMASK(7, 1)
> > +/* MT6360_PMU_CHG_CTRL5 */
> > +#define MT6360_VOBST_MASK      GENMASK(7, 2)
> > +/* MT6360_PMU_CHG_CTRL6 */
> > +#define MT6360_VMIVR_SHFT      (1)
> > +#define MT6360_VMIVR_MASK      GENMASK(7, 1)
> > +/* MT6360_PMU_CHG_CTRL7 */
> > +#define MT6360_ICHG_SHFT       (2)
> > +#define MT6360_ICHG_MASK       GENMASK(7, 2)
> > +/* MT6360_PMU_CHG_CTRL8 */
> > +#define MT6360_IPREC_SHFT      (0)
> > +#define MT6360_IPREC_MASK      GENMASK(3, 0)
> > +/* MT6360_PMU_CHG_CTRL9 */
> > +#define MT6360_IEOC_SHFT       (4)
> > +#define MT6360_IEOC_MASK       GENMASK(7, 4)
> > +/* MT6360_PMU_CHG_CTRL10 */
> > +#define MT6360_LBP_SHFT                (4)
> > +#define MT6360_LBP_MASK                GENMASK(7, 4)
> > +#define MT6360_OTG_OC_SHFT     (0)
> > +#define MT6360_OTG_OC_MASK     GENMASK(3, 0)
> > +/* MT6360_PMU_CHG_CTRL11 */
> > +#define MT6360_SYSREG_SHFT     (2)
> > +#define MT6360_SYSREG_MASK     GENMASK(4, 2)
> > +#define MT6360_VREC_SHFT       (0)
> > +#define MT6360_VREC_MASK       GENMASK(2, 0)
> > +/* MT6360_PMU_CHG_CTRL12 */
> > +#define MT6360_WT_FC_SHFT      (5)
> > +#define MT6360_WT_FC_MASK      GENMASK(7, 5)
> > +/* MT6360_PMU_CHG_CTRL13 */
> > +#define MT6360_CHG_WDT_EN_SHFT (7)
> > +#define MT6360_CHG_WDT_EN_MASK BIT(MT6360_CHG_WDT_EN_SHFT)
> > +#define MT6360_CHG_WDT_SHFT    (4)
> > +#define MT6360_CHG_WDT_MASK    GENMASK(5, 4)
> > +/* MT6360_PMU_DEVICE_TYPE */
> > +#define MT6360_USBCHGEN_SHFT   (7)
> > +#define MT6360_USBCHGEN_MASK   BIT(MT6360_USBCHGEN_SHFT)
> > +/* MT6360_PMU_USB_STATUS1 */
> > +#define MT6360_USB_STATUS_SHFT (4)
> > +#define MT6360_USB_STATUS_MASK GENMASK(6, 4)
> > +/* MT6360_PMU_CHG_CTRL18 */
> > +#define MT6360_BAT_COMP_SHFT   (3)
> > +#define MT6360_BAT_COMP_MASK   GENMASK(5, 3)
> > +#define MT6360_VCLAMP_SHFT     (0)
> > +#define MT6360_VCLAMP_MASK     GENMASK(2, 0)
> > +/* MT6360_PMU_CHG_STAT */
> > +#define MT6360_CHG_STAT_SHFT   (6)
> > +#define MT6360_CHG_STAT_MASK   GENMASK(7, 6)
> > +#define MT6360_VBAT_LVL_MASK   BIT(5)
> > +/* MT6360_PMU_CHG_CTRL19 */
> > +#define MT6360_VINOVP_SHFT     (5)
> > +#define MT6360_VINOVP_MASK     GENMASK(6, 5)
> > +/* MT6360_PMU_FOD_STAT */
> > +#define MT6360_CHRDET_EXT_SHFT (4)
> > +#define MT6360_CHRDET_EXT_MASK BIT(4)
> > +
> > +/* uA */
> > +#define MT6360_ICHG_MIN                100000
> > +#define MT6360_ICHG_MAX                5000000
> > +#define MT6360_ICHG_STEP       100000
> > +/* uV */
> > +#define MT6360_VOREG_MIN       3900000
> > +#define MT6360_VOREG_MAX       4710000
> > +#define MT6360_VOREG_STEP      10000
> > +/* uA */
> > +#define MT6360_AICR_MIN                100000
> > +#define MT6360_AICR_MAX                3250000
> > +#define MT6360_AICR_STEP       50000
> > +/* uA */
> > +#define MT6360_IPREC_MIN       100000
> > +#define MT6360_IPREC_MAX       850000
> > +#define MT6360_IPREC_STEP      50000
> > +/* uA */
> > +#define MT6360_IEOC_MIN                100000
> > +#define MT6360_IEOC_MAX                850000
> > +#define MT6360_IEOC_STEP       50000
> > +
> > +struct mt6360_chg_platform_data {
> > +       u32 vinovp;
> > +};
> > +
> > +struct mt6360_chg_info {
> > +       struct device *dev;
> > +       struct mt6360_chg_platform_data *pdata;
> > +       struct regmap *regmap;
> > +       struct power_supply_desc psy_desc;
> > +       struct power_supply *psy;
> > +       struct regulator_dev *otg_rdev;
> > +       struct mutex chgdet_lock;
> > +       bool pwr_rdy;
> > +       bool bc12_en;
> > +       int psy_usb_type;
> > +       struct work_struct chrdet_work;
> > +};
> > +
> > +static struct mt6360_chg_platform_data def_platform_data = {
> > +       .vinovp = 6500000,
> > +};
> > +
> > +enum mt6360_iinlmtsel {
> > +       MT6360_IINLMTSEL_AICR_3250 = 0,
> > +       MT6360_IINLMTSEL_CHG_TYPE,
> > +       MT6360_IINLMTSEL_AICR,
> > +       MT6360_IINLMTSEL_LOWER_LEVEL,
> > +};
> > +
> > +enum mt6360_pmu_chg_type {
> > +       MT6360_CHG_TYPE_NOVBUS = 0,
> > +       MT6360_CHG_TYPE_UNDER_GOING,
> > +       MT6360_CHG_TYPE_SDP,
> > +       MT6360_CHG_TYPE_SDPNSTD,
> > +       MT6360_CHG_TYPE_DCP,
> > +       MT6360_CHG_TYPE_CDP,
> > +       MT6360_CHG_TYPE_MAX,
> > +};
> > +
> > +static enum power_supply_usb_type mt6360_charger_usb_types[] = {
> > +       POWER_SUPPLY_USB_TYPE_UNKNOWN,
> > +       POWER_SUPPLY_USB_TYPE_SDP,
> > +       POWER_SUPPLY_USB_TYPE_DCP,
> > +       POWER_SUPPLY_USB_TYPE_CDP,
> > +       POWER_SUPPLY_USB_TYPE_C,
> > +       POWER_SUPPLY_USB_TYPE_PD,
> > +       POWER_SUPPLY_USB_TYPE_PD_DRP,
> > +       POWER_SUPPLY_USB_TYPE_APPLE_BRICK_ID
> > +};
> > +
> > +static unsigned int mt6360_trans_reg_sel(u32 data, u32 min_val, u32 step,
> > +                                               u32 max_sel)
> > +{
> > +       unsigned int target = 0;
> > +
> > +       if (data >= min_val)
> > +               target = (data - min_val) / step;
> > +       if (target > max_sel)
> > +               target = max_sel;
> > +       return target;
> > +}
> > +
> > +static int mt6360_get_chrdet_ext_stat(struct mt6360_chg_info *mci,
> > +                                            bool *pwr_rdy)
> > +{
> > +       int ret;
> > +       unsigned int regval;
> > +
> > +       ret = regmap_read(mci->regmap, MT6360_PMU_FOD_STAT, &regval);
> > +       if (ret < 0)
> > +               return ret;
> > +       *pwr_rdy = (regval & MT6360_CHRDET_EXT_MASK) ? true : false;
> > +       return 0;
> > +}
> > +
> > +static int mt6360_charger_get_online(struct mt6360_chg_info *mci,
> > +                                    union power_supply_propval *val)
> > +{
> > +       int ret;
> > +       bool pwr_rdy;
> > +
> > +       ret = mt6360_get_chrdet_ext_stat(mci, &pwr_rdy);
> > +       if (ret < 0)
> > +               return ret;
> > +       val->intval = pwr_rdy ? true : false;
> > +       return 0;
> > +}
> > +
> > +static int mt6360_charger_get_status(struct mt6360_chg_info *mci,
> > +                                    union power_supply_propval *val)
> > +{
> > +       int status, ret;
> > +       unsigned int regval;
> > +       bool pwr_rdy;
> > +
> > +       ret = mt6360_get_chrdet_ext_stat(mci, &pwr_rdy);
> > +       if (ret < 0)
> > +               return ret;
> > +       if (!pwr_rdy) {
> > +               status = POWER_SUPPLY_STATUS_DISCHARGING;
> > +               goto out;
> > +       }
> > +
> > +       ret = regmap_read(mci->regmap, MT6360_PMU_CHG_STAT, &regval);
> > +       if (ret < 0)
> > +               return ret;
> > +       regval &= MT6360_CHG_STAT_MASK;
> > +       regval >>= MT6360_CHG_STAT_SHFT;
> > +       switch (regval) {
> > +       case 0x0:
> > +               status = POWER_SUPPLY_STATUS_NOT_CHARGING;
> > +               break;
> > +       case 0x1:
> > +               status = POWER_SUPPLY_STATUS_CHARGING;
> > +               break;
> > +       case 0x2:
> > +               status = POWER_SUPPLY_STATUS_FULL;
> > +               break;
> > +       default:
> > +               ret = -EIO;
> > +       }
> > +out:
> > +       if (!ret)
> > +               val->intval = status;
> > +       return ret;
> > +}
> > +
> > +static int mt6360_charger_get_charge_type(struct mt6360_chg_info *mci,
> > +                                         union power_supply_propval *val)
> > +{
> > +       int type, ret;
> > +       unsigned int regval;
> > +       u8 chg_stat;
> > +
> > +       ret = regmap_read(mci->regmap, MT6360_PMU_CHG_STAT, &regval);
> > +       if (ret < 0)
> > +               return ret;
> > +
> > +       chg_stat = (regval & MT6360_CHG_STAT_MASK) >> MT6360_CHG_STAT_SHFT;
> > +       switch (chg_stat) {
> > +       case 0x01: /* Charge in Progress */
> > +               if (regval & MT6360_VBAT_LVL_MASK)
> > +                       type = POWER_SUPPLY_CHARGE_TYPE_FAST;
> > +               else
> > +                       type = POWER_SUPPLY_CHARGE_TYPE_TRICKLE;
> > +               break;
> > +       case 0x00: /* Not Charging */
> > +       case 0x02: /* Charge Done */
> > +       case 0x03: /* Charge Fault */
> > +       default:
> > +               type = POWER_SUPPLY_CHARGE_TYPE_NONE;
> > +               break;
> > +       }
> > +
> > +       val->intval = type;
> > +       return 0;
> > +}
> > +
> > +static int mt6360_charger_get_ichg(struct mt6360_chg_info *mci,
> > +                                  union power_supply_propval *val)
> > +{
> > +       int ichg, ret;
> > +       unsigned int regval;
> > +
> > +       ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL7, &regval);
> > +       if (ret < 0)
> > +               return ret;
> > +       regval = (regval & MT6360_ICHG_MASK) >> MT6360_ICHG_SHFT;
> > +       ichg = MT6360_ICHG_MIN + (regval * MT6360_ICHG_STEP);
> > +       if (ichg > MT6360_ICHG_MAX)
> > +               ichg = MT6360_ICHG_MAX;
> > +       val->intval = ichg;
> > +       return 0;
> > +}
> > +
> > +static int mt6360_charger_get_max_ichg(struct mt6360_chg_info *mci,
> > +                                      union power_supply_propval *val)
> > +{
> > +       val->intval = MT6360_ICHG_MAX;
> > +       return 0;
> > +}
> > +
> > +static int mt6360_charger_get_cv(struct mt6360_chg_info *mci,
> > +                                union power_supply_propval *val)
> > +{
> > +       int cv, ret;
> > +       unsigned int regval;
> > +
> > +       ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL4, &regval);
> > +       if (ret < 0)
> > +               return ret;
> > +       regval = (regval & MT6360_VOREG_MASK) >> MT6360_VOREG_SHFT;
> > +       cv = MT6360_VOREG_MIN + (regval * MT6360_VOREG_STEP);
> > +       if (cv > MT6360_VOREG_MAX)
> > +               cv = MT6360_VOREG_MAX;
> > +       val->intval = cv;
> > +       return 0;
> > +}
> > +
> > +static int mt6360_charger_get_max_cv(struct mt6360_chg_info *mci,
> > +                                    union power_supply_propval *val)
> > +{
> > +       val->intval = MT6360_VOREG_MAX;
> > +       return 0;
> > +}
> > +
> > +static int mt6360_charger_get_aicr(struct mt6360_chg_info *mci,
> > +                                  union power_supply_propval *val)
> > +{
> > +       int ret;
> > +       unsigned int regval;
> > +
> > +       ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL3, &regval);
> > +       if (ret < 0)
> > +               return ret;
> > +       regval = (regval & MT6360_IAICR_MASK) >> MT6360_IAICR_SHFT;
> > +       val->intval = MT6360_AICR_MIN + (regval * MT6360_AICR_STEP);
> > +       return 0;
> > +}
> > +
> > +static int mt6360_charger_get_iprechg(struct mt6360_chg_info *mci,
> > +                                     union power_supply_propval *val)
> > +{
> > +       int ret;
> > +       unsigned int regval;
> > +
> > +       ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL8, &regval);
> > +       if (ret < 0)
> > +               return ret;
> > +       regval = (regval & MT6360_IPREC_MASK) >> MT6360_IPREC_SHFT;
> > +       val->intval = MT6360_IPREC_MIN + (regval * MT6360_IPREC_STEP);
> > +       return 0;
> > +}
> > +
> > +static int mt6360_charger_get_ieoc(struct mt6360_chg_info *mci,
> > +                                  union power_supply_propval *val)
> > +{
> > +       int ret;
> > +       unsigned int regval;
> > +
> > +       ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL9, &regval);
> > +       if (ret < 0)
> > +               return ret;
> > +       regval = (regval & MT6360_IEOC_MASK) >> MT6360_IEOC_SHFT;
> > +       val->intval = MT6360_IEOC_MIN + (regval * MT6360_IEOC_STEP);
> > +       return 0;
> > +}
> > +
> > +static int mt6360_charger_set_online(struct mt6360_chg_info *mci,
> > +                                    const union power_supply_propval *val)
> > +{
> > +       u8 force_sleep = val->intval ? 0 : 1;
> > +
> > +       return regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL1,
> > +                                 MT6360_FSLP_MASK,
> > +                                 force_sleep << MT6360_FSLP_SHFT);
> > +}
> > +
> > +static int mt6360_charger_set_ichg(struct mt6360_chg_info *mci,
> > +                                  const union power_supply_propval *val)
> > +{
> > +       unsigned int regval;
> > +
> > +       regval = mt6360_trans_reg_sel(val->intval, 100000, 100000, 0x31);
> > +       return regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL7,
> > +                                 MT6360_ICHG_MASK, regval << MT6360_ICHG_SHFT);
> > +}
> > +
> > +static int mt6360_charger_set_cv(struct mt6360_chg_info *mci,
> > +                                const union power_supply_propval *val)
> > +{
> > +       unsigned int regval;
> > +
> > +       regval = mt6360_trans_reg_sel(val->intval, 3900000, 10000, 0x51);
> > +       return regmap_update_bits(mci->regmap,
> > +                                 MT6360_PMU_CHG_CTRL4,
> > +                                 MT6360_VOREG_MASK,
> > +                                 regval << MT6360_VOREG_SHFT);
> > +}
> > +
> > +static int mt6360_charger_set_aicr(struct mt6360_chg_info *mci,
> > +                                  const union power_supply_propval *val)
> > +{
> > +       unsigned int regval;
> > +
> > +       regval = mt6360_trans_reg_sel(val->intval, 100000, 50000, 0x3F);
> > +       return regmap_update_bits(mci->regmap,
> > +                                 MT6360_PMU_CHG_CTRL3,
> > +                                 MT6360_IAICR_MASK,
> > +                                 regval << MT6360_IAICR_SHFT);
> > +}
> > +
> > +static int mt6360_charger_set_iprechg(struct mt6360_chg_info *mci,
> > +                                     const union power_supply_propval *val)
> > +{
> > +       unsigned int regval;
> > +
> > +       regval = mt6360_trans_reg_sel(val->intval, 100000, 50000, 0x0F);
> > +       return regmap_update_bits(mci->regmap,
> > +                                 MT6360_PMU_CHG_CTRL8,
> > +                                 MT6360_IPREC_MASK,
> > +                                 regval << MT6360_IPREC_SHFT);
> > +}
> > +
> > +static int mt6360_charger_set_ieoc(struct mt6360_chg_info *mci,
> > +                                  const union power_supply_propval *val)
> > +{
> > +       unsigned int regval;
> > +
> > +       regval = mt6360_trans_reg_sel(val->intval, 100000, 50000, 0x0F);
> > +       return regmap_update_bits(mci->regmap,
> > +                                 MT6360_PMU_CHG_CTRL9,
> > +                                 MT6360_IEOC_MASK,
> > +                                 regval << MT6360_IEOC_SHFT);
> > +}
> > +
> > +static int mt6360_charger_get_property(struct power_supply *psy,
> > +                                      enum power_supply_property psp,
> > +                                      union power_supply_propval *val)
> > +{
> > +       struct mt6360_chg_info *mci = power_supply_get_drvdata(psy);
> > +       int ret = 0;
> > +
> > +       dev_dbg(mci->dev, "%s: prop = %d\n", __func__, psp);
> > +       switch (psp) {
> > +       case POWER_SUPPLY_PROP_ONLINE:
> > +               ret = mt6360_charger_get_online(mci, val);
> > +               break;
> > +       case POWER_SUPPLY_PROP_STATUS:
> > +               ret = mt6360_charger_get_status(mci, val);
> > +               break;
> > +       case POWER_SUPPLY_PROP_CHARGE_TYPE:
> > +               ret = mt6360_charger_get_charge_type(mci, val);
> > +               break;
> > +       case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
> > +               ret = mt6360_charger_get_ichg(mci, val);
> > +               break;
> > +       case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX:
> > +               ret = mt6360_charger_get_max_ichg(mci, val);
> > +               break;
> > +       case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
> > +               ret = mt6360_charger_get_cv(mci, val);
> > +               break;
> > +       case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
> > +               ret = mt6360_charger_get_max_cv(mci, val);
> > +               break;
> > +       case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
> > +               ret = mt6360_charger_get_aicr(mci, val);
> > +               break;
> > +       case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
> > +               ret = mt6360_charger_get_iprechg(mci, val);
> > +               break;
> > +       case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
> > +               ret = mt6360_charger_get_ieoc(mci, val);
> > +               break;
> > +       case POWER_SUPPLY_PROP_USB_TYPE:
> > +               val->intval = mci->psy_usb_type;
> > +               break;
> > +       default:
> > +               ret = -ENODATA;
> > +       }
> > +       return ret;
> > +}
> > +
> > +static int mt6360_charger_set_property(struct power_supply *psy,
> > +                                      enum power_supply_property psp,
> > +                                      const union power_supply_propval *val)
> > +{
> > +       struct mt6360_chg_info *mci = power_supply_get_drvdata(psy);
> > +       int ret;
> > +
> > +       dev_dbg(mci->dev, "%s: prop = %d\n", __func__, psp);
> > +       switch (psp) {
> > +       case POWER_SUPPLY_PROP_ONLINE:
> > +               ret = mt6360_charger_set_online(mci, val);
> > +               break;
> > +       case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
> > +               ret = mt6360_charger_set_ichg(mci, val);
> > +               break;
> > +       case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
> > +               ret = mt6360_charger_set_cv(mci, val);
> > +               break;
> > +       case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
> > +               ret = mt6360_charger_set_aicr(mci, val);
> > +               break;
> > +       case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
> > +               ret = mt6360_charger_set_iprechg(mci, val);
> > +               break;
> > +       case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
> > +               ret = mt6360_charger_set_ieoc(mci, val);
> > +               break;
> > +       default:
> > +               ret = -EINVAL;
> > +       }
> > +       return ret;
> > +}
> > +
> > +static int mt6360_charger_property_is_writeable(struct power_supply *psy,
> > +                                              enum power_supply_property psp)
> > +{
> > +       switch (psp) {
> > +       case POWER_SUPPLY_PROP_ONLINE:
> > +       case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
> > +       case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
> > +       case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT:
> > +       case POWER_SUPPLY_PROP_PRECHARGE_CURRENT:
> > +       case POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT:
> > +               return 1;
> > +       default:
> > +               return 0;
> > +       }
> > +}
> > +
> > +static enum power_supply_property mt6360_charger_properties[] = {
> > +       POWER_SUPPLY_PROP_ONLINE,
> > +       POWER_SUPPLY_PROP_STATUS,
> > +       POWER_SUPPLY_PROP_CHARGE_TYPE,
> > +       POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
> > +       POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
> > +       POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
> > +       POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
> > +       POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT,
> > +       POWER_SUPPLY_PROP_PRECHARGE_CURRENT,
> > +       POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
> > +       POWER_SUPPLY_PROP_USB_TYPE,
> > +};
> > +
> > +static char *mt6360_charger_supplied_to[] = {
> > +       "main-battery"
> > +};
> > +
> > +static const struct power_supply_desc mt6360_charger_desc = {
> > +       .type                   = POWER_SUPPLY_TYPE_USB,
> > +       .properties             = mt6360_charger_properties,
> > +       .num_properties         = ARRAY_SIZE(mt6360_charger_properties),
> > +       .get_property           = mt6360_charger_get_property,
> > +       .set_property           = mt6360_charger_set_property,
> > +       .property_is_writeable  = mt6360_charger_property_is_writeable,
> > +       .usb_types              = mt6360_charger_usb_types,
> > +       .num_usb_types          = ARRAY_SIZE(mt6360_charger_usb_types),
> > +};
> > +
> > +static const struct regulator_ops mt6360_chg_otg_ops = {
> > +       .list_voltage = regulator_list_voltage_linear,
> > +       .enable = regulator_enable_regmap,
> > +       .disable = regulator_disable_regmap,
> > +       .is_enabled = regulator_is_enabled_regmap,
> > +       .set_voltage_sel = regulator_set_voltage_sel_regmap,
> > +       .get_voltage_sel = regulator_get_voltage_sel_regmap,
> > +};
> > +
> > +static const struct regulator_desc mt6360_otg_rdesc = {
> > +       .of_match = "usb-otg-vbus",
> > +       .name = "usb-otg-vbus",
> > +       .ops = &mt6360_chg_otg_ops,
> > +       .owner = THIS_MODULE,
> > +       .type = REGULATOR_VOLTAGE,
> > +       .min_uV = 4425000,
> > +       .uV_step = 25000, /* step  25mV */
> > +       .n_voltages = 57, /* 4425mV to 5825mV */
> > +       .vsel_reg = MT6360_PMU_CHG_CTRL5,
> > +       .vsel_mask = MT6360_VOBST_MASK,
> > +       .enable_reg = MT6360_PMU_CHG_CTRL1,
> > +       .enable_mask = MT6360_OPA_MODE_MASK,
> > +};
> > +
> > +static irqreturn_t mt6360_pmu_attach_i_handler(int irq, void *data)
> > +{
> > +       struct mt6360_chg_info *mci = data;
> > +       int ret;
> > +       unsigned int usb_status;
> > +       int last_usb_type;
> > +
> > +       dev_dbg(mci->dev, "%s\n", __func__);
> > +       mutex_lock(&mci->chgdet_lock);
> > +       if (!mci->bc12_en) {
> > +               dev_info(mci->dev, "%s: bc12 disabled, ignore irq\n", __func__);
> > +               goto out;
> > +       }
> > +       last_usb_type = mci->psy_usb_type;
> > +       /* Plug in */
> > +       ret = regmap_read(mci->regmap, MT6360_PMU_USB_STATUS1, &usb_status);
> > +       if (ret < 0)
> > +               goto out;
> > +       usb_status &= MT6360_USB_STATUS_MASK;
> > +       usb_status >>= MT6360_USB_STATUS_SHFT;
> > +       switch (usb_status) {
> > +       case MT6360_CHG_TYPE_UNDER_GOING:
> > +               dev_info(mci->dev, "%s: under going...\n", __func__);
> > +               goto out;
> > +       case MT6360_CHG_TYPE_SDP:
> > +               mci->psy_usb_type = POWER_SUPPLY_USB_TYPE_SDP;
> > +               break;
> > +       case MT6360_CHG_TYPE_SDPNSTD:
> > +               mci->psy_usb_type = POWER_SUPPLY_USB_TYPE_SDP;
> > +               break;
> > +       case MT6360_CHG_TYPE_CDP:
> > +               mci->psy_usb_type = POWER_SUPPLY_USB_TYPE_CDP;
> > +               break;
> > +       case MT6360_CHG_TYPE_DCP:
> > +               mci->psy_usb_type = POWER_SUPPLY_USB_TYPE_DCP;
> > +               break;
> > +       default:
> > +               dev_warn(mci->dev,
> > +                        "%s: disconnect or unknown status\n", __func__);
> > +               goto out;
> > +       }
> > +
> > +       dev_info(mci->dev, "%s: chg_type = %d\n", __func__, mci->psy_usb_type);
> > +       if (last_usb_type != mci->psy_usb_type)
> > +               power_supply_changed(mci->psy);
> > +out:
> > +       mutex_unlock(&mci->chgdet_lock);
> > +       return IRQ_HANDLED;
> > +}
> > +
> > +static void mt6360_handle_chrdet_ext_evt(struct mt6360_chg_info *mci)
> > +{
> > +       int ret;
> > +       bool pwr_rdy;
> > +       int last_usb_type;
> > +
> > +       mutex_lock(&mci->chgdet_lock);
> > +       ret = mt6360_get_chrdet_ext_stat(mci, &pwr_rdy);
> > +       if (ret < 0)
> > +               goto out;
> > +       if (mci->pwr_rdy == pwr_rdy) {
> > +               dev_info(mci->dev,
> > +                        "%s: pwr_rdy is same(%d)\n", __func__, pwr_rdy);
> > +               goto out;
> > +       }
> > +       mci->pwr_rdy = pwr_rdy;
> > +       last_usb_type = mci->psy_usb_type;
> > +       dev_info(mci->dev, "%s: pwr_rdy = %d\n", __func__, pwr_rdy);
> > +       if (!pwr_rdy) {
> > +               mci->psy_usb_type = POWER_SUPPLY_USB_TYPE_UNKNOWN;
> > +               if (last_usb_type != mci->psy_usb_type)
> > +                       power_supply_changed(mci->psy);
> > +
> > +       }
> > +       ret = regmap_update_bits(mci->regmap,
> > +                                MT6360_PMU_DEVICE_TYPE,
> > +                                MT6360_USBCHGEN_MASK,
> > +                                pwr_rdy ? MT6360_USBCHGEN_MASK : 0);
> > +       if (ret < 0)
> > +               goto out;
> > +       mci->bc12_en = pwr_rdy;
> > +out:
> > +       mutex_unlock(&mci->chgdet_lock);
> > +}
> > +
> > +static void mt6360_chrdet_work(struct work_struct *work)
> > +{
> > +       struct mt6360_chg_info *mci = (struct mt6360_chg_info *)container_of(
> > +                                    work, struct mt6360_chg_info, chrdet_work);
> > +
> > +       dev_info(mci->dev, "%s\n", __func__);
> > +       mt6360_handle_chrdet_ext_evt(mci);
> > +}
> > +
> > +static irqreturn_t mt6360_pmu_chrdet_ext_evt_handler(int irq, void *data)
> > +{
> > +       struct mt6360_chg_info *mci = data;
> > +
> > +       dev_info(mci->dev, "%s\n", __func__);
> > +       mt6360_handle_chrdet_ext_evt(mci);
> > +       return IRQ_HANDLED;
> > +}
> > +
> > +static int mt6360_chg_irq_register(struct platform_device *pdev)
> > +{
> > +       const struct {
> > +               const char *name;
> > +               irq_handler_t handler;
> > +       } irq_descs[] = {
> > +               { "attach_i", mt6360_pmu_attach_i_handler },
> > +               { "chrdet_ext_evt", mt6360_pmu_chrdet_ext_evt_handler }
> > +       };
> > +       int i, ret;
> > +
> > +       for (i = 0; i < ARRAY_SIZE(irq_descs); i++) {
> > +               ret = platform_get_irq_byname(pdev, irq_descs[i].name);
> > +               if (ret < 0)
> > +                       return ret;
> > +
> > +               ret = devm_request_threaded_irq(&pdev->dev, ret, NULL,
> > +                                               irq_descs[i].handler,
> > +                                               IRQF_TRIGGER_FALLING,
> > +                                               irq_descs[i].name,
> > +                                               platform_get_drvdata(pdev));
> > +               if (ret < 0) {
> > +                       dev_err(&pdev->dev,
> > +                               "request %s irq fail\n", irq_descs[i].name);
> > +                       return ret;
> > +               }
> > +       }
> > +
> > +       return 0;
> > +}
> > +
> > +struct mt6360_field_info {
> > +       struct device_attribute dev_attr;
> > +       u16 reg;
> > +       u8 mask;
> > +       u8 shft;
> > +};
> > +
> > +static ssize_t mt6360_sysfs_show(struct device *dev,
> > +               struct device_attribute *attr, char *buf);
> > +static ssize_t mt6360_sysfs_store(struct device *dev,
> > +               struct device_attribute *attr, const char *buf, size_t count);
> > +
> > +#define MT6360_FIELD_RW(_name, _reg, _nbit)                    \
> > +{                                                              \
> > +       .dev_attr = __ATTR(_name, 0664,                         \
> > +                      mt6360_sysfs_show, mt6360_sysfs_store),  \
> > +       .reg    = MT6360_PMU_##_reg,                            \
> > +       .mask   = MT6360_##_nbit##_MASK,                                \
> > +       .shft   = MT6360_##_nbit##_SHFT,                                \
> > +}
> > +
> > +#define MT6360_FIELD_RO(_name, _reg, _nbit)                    \
> > +{                                                              \
> > +       .dev_attr = __ATTR(_name, 0444,                         \
> > +                       mt6360_sysfs_show, NULL),               \
> > +       .reg    = MT6360_PMU_##_reg,                            \
> > +       .mask   = MT6360_##_nbit##_MASK,                        \
> > +       .shft   = MT6360_##_nbit##_SHFT,                        \
> > +}
> > +
> > +static struct mt6360_field_info mt6360_field_tbl[] = {
> > +       MT6360_FIELD_RW(hiz,            CHG_CTRL1,      HIZ),
> > +       MT6360_FIELD_RW(vmivr,          CHG_CTRL6,      VMIVR),
> > +       MT6360_FIELD_RW(iaicr,          CHG_CTRL3,      IAICR),
> > +       MT6360_FIELD_RW(SYSREG,         CHG_CTRL11,     SYSREG),
> > +       MT6360_FIELD_RW(otg_oc,         CHG_CTRL10,     OTG_OC),
> > +       MT6360_FIELD_RW(ichg,           CHG_CTRL17,     ICHG),
> > +       MT6360_FIELD_RW(iprec,          CHG_CTRL8,      IPREC),
> > +       MT6360_FIELD_RW(ieoc,           CHG_CTRL9,      IEOC),
> > +       MT6360_FIELD_RW(voreg,          CHG_CTRL4,      VOREG),
> > +       MT6360_FIELD_RW(lbp,            CHG_CTRL10,     LBP),
> > +       MT6360_FIELD_RW(vrec,           CHG_CTRL11,     VREC),
> > +       MT6360_FIELD_RW(te,             CHG_CTRL2,      TE),
> > +       MT6360_FIELD_RW(chg_wdt_en,     CHG_CTRL13,     CHG_WDT_EN),
> > +       MT6360_FIELD_RW(chg_wdt,        CHG_CTRL13,     CHG_WDT),
> > +       MT6360_FIELD_RW(wt_fc,          CHG_CTRL12,     WT_FC),
> > +       MT6360_FIELD_RW(bat_comp,       CHG_CTRL18,     BAT_COMP),
> > +       MT6360_FIELD_RW(vclamp,         CHG_CTRL18,     VCLAMP),
> > +       MT6360_FIELD_RW(usbchgen,       DEVICE_TYPE,    USBCHGEN),
> > +       MT6360_FIELD_RW(chg_en,         CHG_CTRL2,      CHG_EN),
> > +       MT6360_FIELD_RO(chrdet_ext,     FOD_STAT,       CHRDET_EXT),
> > +};
> > +
> > +static struct attribute *mt6360_attrs[ARRAY_SIZE(mt6360_field_tbl) + 1];
> > +
> > +static const struct attribute_group mt6360_attr_group = {
> > +       .attrs = mt6360_attrs,
> > +};
> > +
> > +static ssize_t mt6360_sysfs_show(struct device *dev,
> > +                                struct device_attribute *attr, char *buf)
> > +{
> > +       struct mt6360_chg_info *mci = dev_get_drvdata(dev->parent);
> > +       struct mt6360_field_info *info = (void *)attr;
> > +       unsigned int regval;
> > +       int ret;
> > +
> > +       ret = regmap_read(mci->regmap, info->reg, &regval);
> > +       if (ret < 0)
> > +               return ret;
> > +       regval = (regval & info->mask) >> info->shft;
> > +       return scnprintf(buf, PAGE_SIZE, "%02x\n", regval);
> > +}
> > +
> > +static ssize_t mt6360_sysfs_store(struct device *dev,
> > +                  struct device_attribute *attr, const char *buf, size_t count)
> > +{
> > +       struct mt6360_chg_info *mci = dev_get_drvdata(dev->parent);
> > +       struct mt6360_field_info *info = (void *)attr;
> > +       int ret, tmp;
> > +
> > +       if (kstrtoint(buf, 10, &tmp) < 0) {
> > +               dev_err(dev, "failed to parsing number\n");
> > +               return -EINVAL;
> > +       }
> > +       ret = regmap_update_bits(mci->regmap,
> > +                                info->reg, info->mask, tmp << info->shft);
> > +       if (ret < 0)
> > +               return ret;
> > +       return count;
> > +}
> > +
> > +static int mt6360_sysfs_create_group(struct mt6360_chg_info *mci)
> > +{
> > +       int i, tb_size = ARRAY_SIZE(mt6360_field_tbl);
> > +
> > +       for (i = 0; i < tb_size; i++)
> > +               mt6360_attrs[i] = &(mt6360_field_tbl[i].dev_attr.attr);
> > +       return devm_device_add_group(&mci->psy->dev, &mt6360_attr_group);
> > +}
> > +
> > +static int mt6360_chg_init_setting(struct mt6360_chg_info *mci)
> > +{
> > +       int ret;
> > +
> > +       /* Disable bc12 */
> > +       ret = regmap_update_bits(mci->regmap, MT6360_PMU_DEVICE_TYPE,
> > +                                MT6360_USBCHGEN_MASK, 0);
> > +       if (ret < 0) {
> > +               dev_err(mci->dev, "%s: disable bc12 fail\n", __func__);
> > +               goto out;
> > +       }
> > +       /* Set input current limit select by AICR */
> > +       ret = regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL2,
> > +                                MT6360_IINLMTSEL_MASK,
> > +                                MT6360_IINLMTSEL_AICR <<
> > +                                       MT6360_IINLMTSEL_SHFT);
> > +       if (ret < 0) {
> > +               dev_err(mci->dev,
> > +                       "%s: switch iinlmtsel to aicr fail\n", __func__);
> > +               goto out;
> > +       }
> > +       usleep_range(5000, 6000);
> > +       /* Disable ilim */
> > +       ret = regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL3,
> > +                                MT6360_ILIM_EN_MASK, 0);
> > +       if (ret < 0) {
> > +               dev_err(mci->dev,
> > +                       "%s: switch iinlmtsel to aicr fail\n", __func__);
> > +               goto out;
> > +       }
> > +       /* Enlarge OTG_OC to max 3A */
> > +       ret = regmap_update_bits(mci->regmap,
> > +                                MT6360_PMU_CHG_CTRL10, 0x07, 0x07);
> > +       if (ret < 0) {
> > +               dev_err(mci->dev,
> > +                       "%s: faled config otg oc to maximum\n", __func__);
> > +       }
> > +out:
> > +       return ret;
> > +}
> > +
> > +static u32 mt6360_vinovp_trans_to_sel(u32 val)
> > +{
> > +       u32 vinovp_tbl[] = { 5500000, 6500000, 11000000, 14500000 };
> > +       int i;
> > +
> > +       /* Select the smaller and equal supported value */
> > +       for (i = 0; i < ARRAY_SIZE(vinovp_tbl)-1; i++) {
> > +               if (val < vinovp_tbl[i+1])
> > +                       break;
> > +       }
> > +       return i;
> > +}
> > +
> > +static struct mt6360_chg_platform_data *mt6360_parse_pdata(
> > +                                                  struct platform_device *pdev)
> > +{
> > +       struct mt6360_chg_platform_data *pdata = dev_get_platdata(&pdev->dev);
> > +       struct device_node *np = pdev->dev.of_node;
> > +       int ret;
> > +
> > +       pdata = kmemdup(&def_platform_data, sizeof(*pdata), GFP_KERNEL);
> > +       ret = of_property_read_u32(np, "richtek,vinovp-microvolt", &pdata->vinovp);
> > +       if (ret) {
> > +               dev_err(&pdev->dev, "failed to parse vinovp in DT\n");
> > +               return ERR_PTR(ret);
> > +       }
> > +       return pdata;
> > +}
> > +
> > +static int mt6360_apply_pdata(struct platform_device *pdev)
> > +{
> > +       struct mt6360_chg_platform_data *pdata = dev_get_platdata(&pdev->dev);
> > +       struct mt6360_chg_info *mci = dev_get_drvdata(&pdev->dev);
> > +       int ret;
> > +       u32 sel;
> > +
> > +       sel = mt6360_vinovp_trans_to_sel(pdata->vinovp);
> > +       ret = regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL19,
> > +                                MT6360_VINOVP_MASK, sel << MT6360_VINOVP_SHFT);
> > +       if (ret)
> > +               return ret;
> > +       return 0;
> > +}
> > +
> > +static int mt6360_charger_probe(struct platform_device *pdev)
> > +{
> > +       struct mt6360_chg_platform_data *pdata = dev_get_platdata(&pdev->dev);
> > +       struct mt6360_chg_info *mci;
> > +       struct power_supply_config charger_cfg = {};
> > +       struct regulator_config config = { };
> > +       int ret;
> > +
> > +       mci = devm_kzalloc(&pdev->dev, sizeof(*mci), GFP_KERNEL);
> > +       if (!mci)
> > +               return -ENOMEM;
> > +
> > +       pdata = mt6360_parse_pdata(pdev);
> > +       if (IS_ERR_OR_NULL(pdata))
> > +               return PTR_ERR(pdata);
> > +
> > +       pdev->dev.platform_data = pdata;
> > +
> > +       mci->dev = &pdev->dev;
> > +       mutex_init(&mci->chgdet_lock);
> > +       platform_set_drvdata(pdev, mci);
> > +       INIT_WORK(&mci->chrdet_work, &mt6360_chrdet_work);
> > +
> > +       mci->regmap = dev_get_regmap(pdev->dev.parent, NULL);
> > +       if (!mci->regmap) {
> > +               dev_err(&pdev->dev, "Failed to get parent regmap\n");
> > +               return -ENODEV;
> > +       }
> > +
> > +       ret = mt6360_apply_pdata(pdev);
> > +       if (ret) {
> > +               dev_err(&pdev->dev, "Failed to apply pdata\n");
> > +               return ret;
> > +       }
> > +
> > +       memcpy(&mci->psy_desc, &mt6360_charger_desc, sizeof(mci->psy_desc));
> > +       mci->psy_desc.name = dev_name(&pdev->dev);
> > +       charger_cfg.drv_data = mci;
> > +       charger_cfg.of_node = pdev->dev.of_node;
> > +       charger_cfg.supplied_to = mt6360_charger_supplied_to;
> > +       charger_cfg.num_supplicants = ARRAY_SIZE(mt6360_charger_supplied_to);
> > +       mci->psy = devm_power_supply_register(&pdev->dev,
> > +                                             &mci->psy_desc, &charger_cfg);
> > +       if (IS_ERR(mci->psy)) {
> > +               dev_err(&pdev->dev, "Failed to register power supply dev\n");
> > +               return PTR_ERR(mci->psy);
> > +       }
> > +
> > +       ret = mt6360_chg_init_setting(mci);
> > +       if (ret) {
> > +               dev_err(&pdev->dev, "Failed to initial setting\n");
> > +               return ret;
> > +       }
> > +
> > +       schedule_work(&mci->chrdet_work);
> > +
> > +       ret = mt6360_chg_irq_register(pdev);
> > +       if (ret) {
> > +               dev_err(&pdev->dev, "Failed to register irqs\n");
> > +               return ret;
> > +       }
> > +
> > +       config.dev = &pdev->dev;
> > +       config.regmap = mci->regmap;
> > +       mci->otg_rdev = devm_regulator_register(&pdev->dev, &mt6360_otg_rdesc,
> > +                                               &config);
> > +       if (IS_ERR(mci->otg_rdev))
> > +               return PTR_ERR(mci->otg_rdev);
> > +
> > +       ret = mt6360_sysfs_create_group(mci);
> > +       if (ret) {
> > +               dev_err(&pdev->dev,
> > +                       "%s: create sysfs attrs fail\n", __func__);
> > +               return ret;
> > +       }
> > +
> > +       return 0;
> > +}
> > +
> > +static const struct of_device_id __maybe_unused mt6360_charger_of_id[] = {
> > +       { .compatible = "mediatek,mt6360-chg", },
> > +       {},
> > +};
> > +MODULE_DEVICE_TABLE(of, mt6360_charger_of_id);
> > +
> > +static const struct platform_device_id mt6360_charger_id[] = {
> > +       { "mt6360-chg", 0 },
> > +       {},
> > +};
> > +MODULE_DEVICE_TABLE(platform, mt6360_charger_id);
> > +
> > +static struct platform_driver mt6360_charger_driver = {
> > +       .driver = {
> > +               .name = "mt6360-chg",
> > +               .of_match_table = of_match_ptr(mt6360_charger_of_id),
> > +       },
> > +       .probe = mt6360_charger_probe,
> > +       .id_table = mt6360_charger_id,
> > +};
> > +module_platform_driver(mt6360_charger_driver);
> > +
> > +MODULE_AUTHOR("CY_Huang <cy_huang@richtek.com>");
> > +MODULE_DESCRIPTION("MT6360 Charger Driver");
> > +MODULE_LICENSE("GPL");
> > --
> > 2.7.4
> >