* [PATCH v2 0/2] power: supply: mt6360_charger: add MT6360 charger support @ 2020-11-03 10:41 Gene Chen 2020-11-03 10:41 ` [PATCH v2 1/2] dt-bindings: power: Add bindings document for Charger support on MT6360 PMIC Gene Chen 2020-11-03 10:41 ` [PATCH v2 2/2] power: supply: mt6360_charger: add MT6360 charger support Gene Chen 0 siblings, 2 replies; 6+ messages in thread From: Gene Chen @ 2020-11-03 10:41 UTC (permalink / raw) To: sre, matthias.bgg, robh+dt Cc: linux-pm, devicetree, linux-arm-kernel, linux-mediatek, linux-kernel, gene_chen, Wilma.Wu, shufan_lee, cy_huang, benjamin.chao This patch series add MT6360 Charger support contains driver and binding document Gene Chen (2) dt-bindings: power: Add bindings document for Charger support on MT6360 PMIC power: supply: mt6360_charger: add MT6360 charger support Documentation/devicetree/bindings/power/supply/mt6360_charger.yaml | 48 drivers/power/supply/Kconfig | 10 drivers/power/supply/Makefile | 1 drivers/power/supply/mt6360_charger.c | 1022 ++++++++++ 4 files changed, 1081 insertions(+) changelogs between v1 & v2 - Add binding property with unit and custom name prefix - Remove extcon device, redundant brackets and interrupts - Fix power supply prop "charger type" ^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v2 1/2] dt-bindings: power: Add bindings document for Charger support on MT6360 PMIC 2020-11-03 10:41 [PATCH v2 0/2] power: supply: mt6360_charger: add MT6360 charger support Gene Chen @ 2020-11-03 10:41 ` Gene Chen 2020-11-09 16:07 ` Rob Herring 2020-11-03 10:41 ` [PATCH v2 2/2] power: supply: mt6360_charger: add MT6360 charger support Gene Chen 1 sibling, 1 reply; 6+ messages in thread From: Gene Chen @ 2020-11-03 10:41 UTC (permalink / raw) To: sre, matthias.bgg, robh+dt Cc: linux-pm, devicetree, linux-arm-kernel, linux-mediatek, linux-kernel, gene_chen, Wilma.Wu, shufan_lee, cy_huang, benjamin.chao From: Gene Chen <gene_chen@richtek.com> Add bindings document for Charger support on MT6360 PMIC Signed-off-by: Gene Chen <gene_chen@richtek.com> --- .../bindings/power/supply/mt6360_charger.yaml | 48 ++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/supply/mt6360_charger.yaml diff --git a/Documentation/devicetree/bindings/power/supply/mt6360_charger.yaml b/Documentation/devicetree/bindings/power/supply/mt6360_charger.yaml new file mode 100644 index 0000000..b89b15a --- /dev/null +++ b/Documentation/devicetree/bindings/power/supply/mt6360_charger.yaml @@ -0,0 +1,48 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/power/supply/mt6360_charger.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Battery charger driver for MT6360 PMIC from MediaTek Integrated. + +maintainers: + - Gene Chen <gene_chen@richtek.com> + +description: | + This module is part of the MT6360 MFD device. + Provides Battery Charger, Boost for OTG devices and BC1.2 detection. + +properties: + compatible: + const: mediatek,mt6360-chg + + richtek,vinovp-microvolt: + description: Maximum CHGIN regulation voltage in uV. + enum: [ 5500000, 6500000, 11000000, 14500000 ] + + + usb-otg-vbus-regulator: + type: object + description: OTG boost regulator. + $ref: /schemas/regulator/regulator.yaml# + +required: + - compatible + +additionalProperties: false + +examples: + - | + mt6360_charger: charger { + compatible = "mediatek,mt6360-chg"; + richtek,vinovp-microvolt = <14500000>; + + otg_vbus_regulator: usb-otg-vbus-regulator { + regulator-compatible = "usb-otg-vbus"; + regulator-name = "usb-otg-vbus"; + regulator-min-microvolt = <4425000>; + regulator-max-microvolt = <5825000>; + }; + }; +... -- 2.7.4 ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v2 1/2] dt-bindings: power: Add bindings document for Charger support on MT6360 PMIC 2020-11-03 10:41 ` [PATCH v2 1/2] dt-bindings: power: Add bindings document for Charger support on MT6360 PMIC Gene Chen @ 2020-11-09 16:07 ` Rob Herring 0 siblings, 0 replies; 6+ messages in thread From: Rob Herring @ 2020-11-09 16:07 UTC (permalink / raw) To: Gene Chen Cc: gene_chen, linux-pm, sre, robh+dt, shufan_lee, linux-arm-kernel, linux-mediatek, linux-kernel, cy_huang, matthias.bgg, benjamin.chao, Wilma.Wu, devicetree On Tue, 03 Nov 2020 18:41:30 +0800, Gene Chen wrote: > From: Gene Chen <gene_chen@richtek.com> > > Add bindings document for Charger support on MT6360 PMIC > > Signed-off-by: Gene Chen <gene_chen@richtek.com> > --- > .../bindings/power/supply/mt6360_charger.yaml | 48 ++++++++++++++++++++++ > 1 file changed, 48 insertions(+) > create mode 100644 Documentation/devicetree/bindings/power/supply/mt6360_charger.yaml > Reviewed-by: Rob Herring <robh@kernel.org> ^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH v2 2/2] power: supply: mt6360_charger: add MT6360 charger support 2020-11-03 10:41 [PATCH v2 0/2] power: supply: mt6360_charger: add MT6360 charger support Gene Chen 2020-11-03 10:41 ` [PATCH v2 1/2] dt-bindings: power: Add bindings document for Charger support on MT6360 PMIC Gene Chen @ 2020-11-03 10:41 ` Gene Chen 2020-11-19 2:24 ` Gene Chen 1 sibling, 1 reply; 6+ messages in thread From: Gene Chen @ 2020-11-03 10:41 UTC (permalink / raw) To: sre, matthias.bgg, robh+dt Cc: linux-pm, devicetree, linux-arm-kernel, linux-mediatek, linux-kernel, gene_chen, Wilma.Wu, shufan_lee, cy_huang, benjamin.chao 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, ®val); + 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, ®val); + 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, ®val); + 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, ®val); + 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, ®val); + 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, ®val); + 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, ®val); + 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, ®val); + 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, ®val); + 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 ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH v2 2/2] power: supply: mt6360_charger: add MT6360 charger support 2020-11-03 10:41 ` [PATCH v2 2/2] power: supply: mt6360_charger: add MT6360 charger support Gene Chen @ 2020-11-19 2:24 ` Gene Chen 2020-12-07 10:19 ` Gene Chen 0 siblings, 1 reply; 6+ messages in thread From: Gene Chen @ 2020-11-19 2:24 UTC (permalink / raw) To: sre, Matthias Brugger, Rob Herring Cc: linux-pm, devicetree, linux-arm Mailing List, moderated list:ARM/Mediatek SoC support, Linux Kernel Mailing List, Gene Chen, Wilma.Wu, shufan_lee, cy_huang, benjamin.chao 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, ®val); > + 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, ®val); > + 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, ®val); > + 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, ®val); > + 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, ®val); > + 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, ®val); > + 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, ®val); > + 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, ®val); > + 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, ®val); > + 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 > ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH v2 2/2] power: supply: mt6360_charger: add MT6360 charger support 2020-11-19 2:24 ` Gene Chen @ 2020-12-07 10:19 ` Gene Chen 0 siblings, 0 replies; 6+ messages in thread From: Gene Chen @ 2020-12-07 10:19 UTC (permalink / raw) To: sre, Matthias Brugger, Rob Herring Cc: linux-pm, devicetree, linux-arm Mailing List, moderated list:ARM/Mediatek SoC support, Linux Kernel Mailing List, Gene Chen, Wilma.Wu, shufan_lee, cy_huang, benjamin.chao 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, ®val); > > + 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, ®val); > > + 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, ®val); > > + 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, ®val); > > + 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, ®val); > > + 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, ®val); > > + 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, ®val); > > + 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, ®val); > > + 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, ®val); > > + 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 > > ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2020-12-07 10:21 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2020-11-03 10:41 [PATCH v2 0/2] power: supply: mt6360_charger: add MT6360 charger support Gene Chen 2020-11-03 10:41 ` [PATCH v2 1/2] dt-bindings: power: Add bindings document for Charger support on MT6360 PMIC Gene Chen 2020-11-09 16:07 ` Rob Herring 2020-11-03 10:41 ` [PATCH v2 2/2] power: supply: mt6360_charger: add MT6360 charger support Gene Chen 2020-11-19 2:24 ` Gene Chen 2020-12-07 10:19 ` Gene Chen
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