// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2021 MediaTek Inc. */ #include #include #include #include #include #include #include #include #include #include #include #include #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_DEVICE_TYPE 0x322 #define MT6360_PMU_USB_STATUS1 0x327 #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_OPA_MODE_SHFT (0) #define MT6360_OPA_MODE_MASK BIT(MT6360_OPA_MODE_SHFT) /* MT6360_PMU_CHG_CTRL2 */ #define MT6360_IINLMTSEL_SHFT (2) #define MT6360_IINLMTSEL_MASK GENMASK(3, 2) /* 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_OTG_OC_MASK GENMASK(3, 0) /* MT6360_PMU_DEVICE_TYPE */ #define MT6360_USBCHGEN_MASK BIT(7) /* MT6360_PMU_USB_STATUS1 */ #define MT6360_USB_STATUS_SHFT (4) #define MT6360_USB_STATUS_MASK GENMASK(6, 4) /* 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_MASK BIT(4) /* uV */ #define MT6360_VMIVR_MIN 3900000 #define MT6360_VMIVR_MAX 13400000 #define MT6360_VMIVR_STEP 100000 /* 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 enum { MT6360_RANGE_VMIVR, MT6360_RANGE_ICHG, MT6360_RANGE_VOREG, MT6360_RANGE_AICR, MT6360_RANGE_IPREC, MT6360_RANGE_IEOC, MT6360_RANGE_MAX, }; static const struct linear_range mt6360_chg_range[MT6360_RANGE_MAX] = { LINEAR_RANGE_IDX(MT6360_RANGE_VMIVR, 3900000, 0, 0x5F, 100000), LINEAR_RANGE_IDX(MT6360_RANGE_ICHG, 100000, 0, 0x31, 100000), LINEAR_RANGE_IDX(MT6360_RANGE_VOREG, 3900000, 0, 0x51, 10000), LINEAR_RANGE_IDX(MT6360_RANGE_AICR, 100000, 0, 0x3F, 50000), LINEAR_RANGE_IDX(MT6360_RANGE_IPREC, 100000, 0, 0x0F, 50000), LINEAR_RANGE_IDX(MT6360_RANGE_IEOC, 100000, 0, 0x0F, 50000), }; struct mt6360_chg_info { struct device *dev; struct regmap *regmap; struct power_supply_desc psy_desc; struct power_supply *psy; struct regulator_dev *otg_rdev; struct mutex chgdet_lock; u32 vinovp; bool pwr_rdy; bool bc12_en; int psy_usb_type; struct work_struct chrdet_work; }; 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_DISABLE_BC12, MT6360_CHG_TYPE_MAX, }; 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 ret; u32 sel, value; ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL7, &sel); if (ret < 0) return ret; sel = (sel & MT6360_ICHG_MASK) >> MT6360_ICHG_SHFT; ret = linear_range_get_value(&mt6360_chg_range[MT6360_RANGE_ICHG], sel, &value); if (!ret) val->intval = value; return ret; } 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 ret; u32 sel, value; ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL4, &sel); if (ret < 0) return ret; sel = (sel & MT6360_VOREG_MASK) >> MT6360_VOREG_SHFT; ret = linear_range_get_value(&mt6360_chg_range[MT6360_RANGE_VOREG], sel, &value); if (!ret) val->intval = value; return ret; } 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; u32 sel, value; ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL3, &sel); if (ret < 0) return ret; sel = (sel & MT6360_IAICR_MASK) >> MT6360_IAICR_SHFT; ret = linear_range_get_value(&mt6360_chg_range[MT6360_RANGE_AICR], sel, &value); if (!ret) val->intval = value; return ret; } static int mt6360_charger_get_mivr(struct mt6360_chg_info *mci, union power_supply_propval *val) { int ret; u32 sel, value; ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL6, &sel); if (ret < 0) return ret; sel = (sel & MT6360_VMIVR_MASK) >> MT6360_VMIVR_SHFT; ret = linear_range_get_value(&mt6360_chg_range[MT6360_RANGE_VMIVR], sel, &value); if (!ret) val->intval = value; return ret; } static int mt6360_charger_get_iprechg(struct mt6360_chg_info *mci, union power_supply_propval *val) { int ret; u32 sel, value; ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL8, &sel); if (ret < 0) return ret; sel = (sel & MT6360_IPREC_MASK) >> MT6360_IPREC_SHFT; ret = linear_range_get_value(&mt6360_chg_range[MT6360_RANGE_IPREC], sel, &value); if (!ret) val->intval = value; return ret; } static int mt6360_charger_get_ieoc(struct mt6360_chg_info *mci, union power_supply_propval *val) { int ret; u32 sel, value; ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL9, &sel); if (ret < 0) return ret; sel = (sel & MT6360_IEOC_MASK) >> MT6360_IEOC_SHFT; ret = linear_range_get_value(&mt6360_chg_range[MT6360_RANGE_IEOC], sel, &value); if (!ret) val->intval = value; return ret; } 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) { u32 sel; linear_range_get_selector_within(&mt6360_chg_range[MT6360_RANGE_ICHG], val->intval, &sel); return regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL7, MT6360_ICHG_MASK, sel << MT6360_ICHG_SHFT); } static int mt6360_charger_set_cv(struct mt6360_chg_info *mci, const union power_supply_propval *val) { u32 sel; linear_range_get_selector_within(&mt6360_chg_range[MT6360_RANGE_VOREG], val->intval, &sel); return regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL4, MT6360_VOREG_MASK, sel << MT6360_VOREG_SHFT); } static int mt6360_charger_set_aicr(struct mt6360_chg_info *mci, const union power_supply_propval *val) { u32 sel; linear_range_get_selector_within(&mt6360_chg_range[MT6360_RANGE_AICR], val->intval, &sel); return regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL3, MT6360_IAICR_MASK, sel << MT6360_IAICR_SHFT); } static int mt6360_charger_set_mivr(struct mt6360_chg_info *mci, const union power_supply_propval *val) { u32 sel; linear_range_get_selector_within(&mt6360_chg_range[MT6360_RANGE_VMIVR], val->intval, &sel); return regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL3, MT6360_VMIVR_MASK, sel << MT6360_VMIVR_SHFT); } static int mt6360_charger_set_iprechg(struct mt6360_chg_info *mci, const union power_supply_propval *val) { u32 sel; linear_range_get_selector_within(&mt6360_chg_range[MT6360_RANGE_IPREC], val->intval, &sel); return regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL8, MT6360_IPREC_MASK, sel << MT6360_IPREC_SHFT); } static int mt6360_charger_set_ieoc(struct mt6360_chg_info *mci, const union power_supply_propval *val) { u32 sel; linear_range_get_selector_within(&mt6360_chg_range[MT6360_RANGE_IEOC], val->intval, &sel); return regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL9, MT6360_IEOC_MASK, sel << 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; 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_INPUT_VOLTAGE_LIMIT: ret = mt6360_charger_get_mivr(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; 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_INPUT_VOLTAGE_LIMIT: ret = mt6360_charger_set_mivr(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_INPUT_VOLTAGE_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_INPUT_VOLTAGE_LIMIT, POWER_SUPPLY_PROP_PRECHARGE_CURRENT, POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT, POWER_SUPPLY_PROP_USB_TYPE, }; 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 = BIT(POWER_SUPPLY_USB_TYPE_SDP) | BIT(POWER_SUPPLY_USB_TYPE_CDP) | BIT(POWER_SUPPLY_USB_TYPE_DCP) | BIT(POWER_SUPPLY_USB_TYPE_UNKNOWN), }; 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-regulator", .name = "usb-otg-vbus", .ops = &mt6360_chg_otg_ops, .owner = THIS_MODULE, .type = REGULATOR_VOLTAGE, .min_uV = 4425000, .uV_step = 25000, .n_voltages = 57, .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; mutex_lock(&mci->chgdet_lock); if (!mci->bc12_en) { dev_warn(mci->dev, "Received attach interrupt, bc12 disabled, ignore irq\n"); 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_NOVBUS: dev_dbg(mci->dev, "Received attach interrupt, no vbus\n"); goto out; case MT6360_CHG_TYPE_UNDER_GOING: dev_dbg(mci->dev, "Received attach interrupt, under going...\n"); 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; case MT6360_CHG_TYPE_DISABLE_BC12: dev_dbg(mci->dev, "Received attach interrupt, bc12 detect not enable\n"); goto out; default: mci->psy_usb_type = POWER_SUPPLY_USB_TYPE_UNKNOWN; dev_dbg(mci->dev, "Received attach interrupt, reserved address\n"); goto out; } dev_dbg(mci->dev, "Received attach interrupt, chg_type = %d\n", 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; 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_dbg(mci->dev, "Received vbus interrupt, pwr_rdy is same(%d)\n", pwr_rdy); goto out; } mci->pwr_rdy = pwr_rdy; dev_dbg(mci->dev, "Received vbus interrupt, pwr_rdy = %d\n", pwr_rdy); if (!pwr_rdy) { mci->psy_usb_type = POWER_SUPPLY_USB_TYPE_UNKNOWN; 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); 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; 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 | IRQF_ONESHOT, irq_descs[i].name, platform_get_drvdata(pdev)); if (ret < 0) return dev_err_probe(&pdev->dev, ret, "Failed to request %s irq\n", irq_descs[i].name); } return 0; } 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 int mt6360_chg_init_setting(struct mt6360_chg_info *mci) { int ret; u32 sel; sel = mt6360_vinovp_trans_to_sel(mci->vinovp); ret = regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL19, MT6360_VINOVP_MASK, sel << MT6360_VINOVP_SHFT); if (ret) return dev_err_probe(mci->dev, ret, "%s: Failed to apply vinovp\n", __func__); ret = regmap_update_bits(mci->regmap, MT6360_PMU_DEVICE_TYPE, MT6360_USBCHGEN_MASK, 0); if (ret) return dev_err_probe(mci->dev, ret, "%s: Failed to disable bc12\n", __func__); ret = regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL2, MT6360_IINLMTSEL_MASK, MT6360_IINLMTSEL_AICR << MT6360_IINLMTSEL_SHFT); if (ret) return dev_err_probe(mci->dev, ret, "%s: Failed to switch iinlmtsel to aicr\n", __func__); usleep_range(5000, 6000); ret = regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL3, MT6360_ILIM_EN_MASK, 0); if (ret) return dev_err_probe(mci->dev, ret, "%s: Failed to disable ilim\n", __func__); ret = regmap_update_bits(mci->regmap, MT6360_PMU_CHG_CTRL10, MT6360_OTG_OC_MASK, MT6360_OTG_OC_MASK); if (ret) return dev_err_probe(mci->dev, ret, "%s: Failed to config otg oc to 3A\n", __func__); return 0; } static int mt6360_charger_probe(struct platform_device *pdev) { 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; mci->dev = &pdev->dev; mci->vinovp = 6500000; mutex_init(&mci->chgdet_lock); platform_set_drvdata(pdev, mci); ret = devm_work_autocancel(&pdev->dev, &mci->chrdet_work, mt6360_chrdet_work); if (ret) return dev_err_probe(&pdev->dev, ret, "Failed to set delayed work\n"); ret = device_property_read_u32(&pdev->dev, "richtek,vinovp-microvolt", &mci->vinovp); if (ret) dev_warn(&pdev->dev, "Failed to parse vinovp in DT, keep default 6.5v\n"); mci->regmap = dev_get_regmap(pdev->dev.parent, NULL); if (!mci->regmap) return dev_err_probe(&pdev->dev, -ENODEV, "Failed to get parent regmap\n"); ret = mt6360_chg_init_setting(mci); if (ret) return dev_err_probe(&pdev->dev, ret, "Failed to initial setting\n"); 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; mci->psy = devm_power_supply_register(&pdev->dev, &mci->psy_desc, &charger_cfg); if (IS_ERR(mci->psy)) return dev_err_probe(&pdev->dev, PTR_ERR(mci->psy), "Failed to register power supply dev\n"); ret = mt6360_chg_irq_register(pdev); if (ret) return dev_err_probe(&pdev->dev, ret, "Failed to register irqs\n"); 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); schedule_work(&mci->chrdet_work); 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("Gene Chen "); MODULE_DESCRIPTION("MT6360 Charger Driver"); MODULE_LICENSE("GPL");