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867 lines
23 KiB
867 lines
23 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* Copyright (c) 2021 MediaTek Inc. |
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*/ |
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#include <linux/devm-helpers.h> |
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#include <linux/init.h> |
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#include <linux/interrupt.h> |
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#include <linux/kernel.h> |
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#include <linux/linear_range.h> |
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#include <linux/module.h> |
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#include <linux/of.h> |
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#include <linux/platform_device.h> |
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#include <linux/power_supply.h> |
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#include <linux/property.h> |
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#include <linux/regmap.h> |
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#include <linux/regulator/driver.h> |
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#define MT6360_PMU_CHG_CTRL1 0x311 |
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#define MT6360_PMU_CHG_CTRL2 0x312 |
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#define MT6360_PMU_CHG_CTRL3 0x313 |
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#define MT6360_PMU_CHG_CTRL4 0x314 |
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#define MT6360_PMU_CHG_CTRL5 0x315 |
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#define MT6360_PMU_CHG_CTRL6 0x316 |
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#define MT6360_PMU_CHG_CTRL7 0x317 |
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#define MT6360_PMU_CHG_CTRL8 0x318 |
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#define MT6360_PMU_CHG_CTRL9 0x319 |
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#define MT6360_PMU_CHG_CTRL10 0x31A |
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#define MT6360_PMU_DEVICE_TYPE 0x322 |
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#define MT6360_PMU_USB_STATUS1 0x327 |
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#define MT6360_PMU_CHG_STAT 0x34A |
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#define MT6360_PMU_CHG_CTRL19 0x361 |
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#define MT6360_PMU_FOD_STAT 0x3E7 |
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/* MT6360_PMU_CHG_CTRL1 */ |
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#define MT6360_FSLP_SHFT (3) |
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#define MT6360_FSLP_MASK BIT(MT6360_FSLP_SHFT) |
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#define MT6360_OPA_MODE_SHFT (0) |
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#define MT6360_OPA_MODE_MASK BIT(MT6360_OPA_MODE_SHFT) |
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/* MT6360_PMU_CHG_CTRL2 */ |
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#define MT6360_IINLMTSEL_SHFT (2) |
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#define MT6360_IINLMTSEL_MASK GENMASK(3, 2) |
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/* MT6360_PMU_CHG_CTRL3 */ |
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#define MT6360_IAICR_SHFT (2) |
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#define MT6360_IAICR_MASK GENMASK(7, 2) |
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#define MT6360_ILIM_EN_MASK BIT(0) |
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/* MT6360_PMU_CHG_CTRL4 */ |
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#define MT6360_VOREG_SHFT (1) |
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#define MT6360_VOREG_MASK GENMASK(7, 1) |
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/* MT6360_PMU_CHG_CTRL5 */ |
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#define MT6360_VOBST_MASK GENMASK(7, 2) |
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/* MT6360_PMU_CHG_CTRL6 */ |
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#define MT6360_VMIVR_SHFT (1) |
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#define MT6360_VMIVR_MASK GENMASK(7, 1) |
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/* MT6360_PMU_CHG_CTRL7 */ |
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#define MT6360_ICHG_SHFT (2) |
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#define MT6360_ICHG_MASK GENMASK(7, 2) |
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/* MT6360_PMU_CHG_CTRL8 */ |
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#define MT6360_IPREC_SHFT (0) |
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#define MT6360_IPREC_MASK GENMASK(3, 0) |
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/* MT6360_PMU_CHG_CTRL9 */ |
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#define MT6360_IEOC_SHFT (4) |
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#define MT6360_IEOC_MASK GENMASK(7, 4) |
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/* MT6360_PMU_CHG_CTRL10 */ |
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#define MT6360_OTG_OC_MASK GENMASK(3, 0) |
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/* MT6360_PMU_DEVICE_TYPE */ |
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#define MT6360_USBCHGEN_MASK BIT(7) |
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/* MT6360_PMU_USB_STATUS1 */ |
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#define MT6360_USB_STATUS_SHFT (4) |
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#define MT6360_USB_STATUS_MASK GENMASK(6, 4) |
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/* MT6360_PMU_CHG_STAT */ |
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#define MT6360_CHG_STAT_SHFT (6) |
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#define MT6360_CHG_STAT_MASK GENMASK(7, 6) |
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#define MT6360_VBAT_LVL_MASK BIT(5) |
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/* MT6360_PMU_CHG_CTRL19 */ |
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#define MT6360_VINOVP_SHFT (5) |
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#define MT6360_VINOVP_MASK GENMASK(6, 5) |
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/* MT6360_PMU_FOD_STAT */ |
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#define MT6360_CHRDET_EXT_MASK BIT(4) |
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/* uV */ |
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#define MT6360_VMIVR_MIN 3900000 |
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#define MT6360_VMIVR_MAX 13400000 |
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#define MT6360_VMIVR_STEP 100000 |
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/* uA */ |
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#define MT6360_ICHG_MIN 100000 |
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#define MT6360_ICHG_MAX 5000000 |
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#define MT6360_ICHG_STEP 100000 |
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/* uV */ |
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#define MT6360_VOREG_MIN 3900000 |
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#define MT6360_VOREG_MAX 4710000 |
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#define MT6360_VOREG_STEP 10000 |
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/* uA */ |
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#define MT6360_AICR_MIN 100000 |
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#define MT6360_AICR_MAX 3250000 |
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#define MT6360_AICR_STEP 50000 |
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/* uA */ |
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#define MT6360_IPREC_MIN 100000 |
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#define MT6360_IPREC_MAX 850000 |
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#define MT6360_IPREC_STEP 50000 |
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/* uA */ |
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#define MT6360_IEOC_MIN 100000 |
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#define MT6360_IEOC_MAX 850000 |
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#define MT6360_IEOC_STEP 50000 |
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enum { |
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MT6360_RANGE_VMIVR, |
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MT6360_RANGE_ICHG, |
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MT6360_RANGE_VOREG, |
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MT6360_RANGE_AICR, |
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MT6360_RANGE_IPREC, |
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MT6360_RANGE_IEOC, |
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MT6360_RANGE_MAX, |
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}; |
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#define MT6360_LINEAR_RANGE(idx, _min, _min_sel, _max_sel, _step) \ |
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[idx] = REGULATOR_LINEAR_RANGE(_min, _min_sel, _max_sel, _step) |
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static const struct linear_range mt6360_chg_range[MT6360_RANGE_MAX] = { |
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MT6360_LINEAR_RANGE(MT6360_RANGE_VMIVR, 3900000, 0, 0x5F, 100000), |
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MT6360_LINEAR_RANGE(MT6360_RANGE_ICHG, 100000, 0, 0x31, 100000), |
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MT6360_LINEAR_RANGE(MT6360_RANGE_VOREG, 3900000, 0, 0x51, 10000), |
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MT6360_LINEAR_RANGE(MT6360_RANGE_AICR, 100000, 0, 0x3F, 50000), |
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MT6360_LINEAR_RANGE(MT6360_RANGE_IPREC, 100000, 0, 0x0F, 50000), |
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MT6360_LINEAR_RANGE(MT6360_RANGE_IEOC, 100000, 0, 0x0F, 50000), |
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}; |
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struct mt6360_chg_info { |
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struct device *dev; |
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struct regmap *regmap; |
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struct power_supply_desc psy_desc; |
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struct power_supply *psy; |
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struct regulator_dev *otg_rdev; |
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struct mutex chgdet_lock; |
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u32 vinovp; |
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bool pwr_rdy; |
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bool bc12_en; |
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int psy_usb_type; |
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struct work_struct chrdet_work; |
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}; |
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enum mt6360_iinlmtsel { |
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MT6360_IINLMTSEL_AICR_3250 = 0, |
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MT6360_IINLMTSEL_CHG_TYPE, |
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MT6360_IINLMTSEL_AICR, |
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MT6360_IINLMTSEL_LOWER_LEVEL, |
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}; |
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enum mt6360_pmu_chg_type { |
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MT6360_CHG_TYPE_NOVBUS = 0, |
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MT6360_CHG_TYPE_UNDER_GOING, |
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MT6360_CHG_TYPE_SDP, |
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MT6360_CHG_TYPE_SDPNSTD, |
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MT6360_CHG_TYPE_DCP, |
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MT6360_CHG_TYPE_CDP, |
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MT6360_CHG_TYPE_DISABLE_BC12, |
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MT6360_CHG_TYPE_MAX, |
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}; |
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static enum power_supply_usb_type mt6360_charger_usb_types[] = { |
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POWER_SUPPLY_USB_TYPE_UNKNOWN, |
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POWER_SUPPLY_USB_TYPE_SDP, |
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POWER_SUPPLY_USB_TYPE_DCP, |
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POWER_SUPPLY_USB_TYPE_CDP, |
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}; |
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static int mt6360_get_chrdet_ext_stat(struct mt6360_chg_info *mci, |
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bool *pwr_rdy) |
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{ |
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int ret; |
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unsigned int regval; |
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ret = regmap_read(mci->regmap, MT6360_PMU_FOD_STAT, ®val); |
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if (ret < 0) |
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return ret; |
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*pwr_rdy = (regval & MT6360_CHRDET_EXT_MASK) ? true : false; |
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return 0; |
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} |
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static int mt6360_charger_get_online(struct mt6360_chg_info *mci, |
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union power_supply_propval *val) |
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{ |
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int ret; |
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bool pwr_rdy; |
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ret = mt6360_get_chrdet_ext_stat(mci, &pwr_rdy); |
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if (ret < 0) |
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return ret; |
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val->intval = pwr_rdy ? true : false; |
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return 0; |
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} |
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static int mt6360_charger_get_status(struct mt6360_chg_info *mci, |
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union power_supply_propval *val) |
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{ |
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int status, ret; |
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unsigned int regval; |
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bool pwr_rdy; |
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ret = mt6360_get_chrdet_ext_stat(mci, &pwr_rdy); |
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if (ret < 0) |
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return ret; |
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if (!pwr_rdy) { |
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status = POWER_SUPPLY_STATUS_DISCHARGING; |
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goto out; |
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} |
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ret = regmap_read(mci->regmap, MT6360_PMU_CHG_STAT, ®val); |
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if (ret < 0) |
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return ret; |
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regval &= MT6360_CHG_STAT_MASK; |
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regval >>= MT6360_CHG_STAT_SHFT; |
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switch (regval) { |
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case 0x0: |
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status = POWER_SUPPLY_STATUS_NOT_CHARGING; |
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break; |
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case 0x1: |
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status = POWER_SUPPLY_STATUS_CHARGING; |
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break; |
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case 0x2: |
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status = POWER_SUPPLY_STATUS_FULL; |
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break; |
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default: |
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ret = -EIO; |
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} |
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out: |
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if (!ret) |
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val->intval = status; |
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return ret; |
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} |
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static int mt6360_charger_get_charge_type(struct mt6360_chg_info *mci, |
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union power_supply_propval *val) |
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{ |
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int type, ret; |
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unsigned int regval; |
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u8 chg_stat; |
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ret = regmap_read(mci->regmap, MT6360_PMU_CHG_STAT, ®val); |
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if (ret < 0) |
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return ret; |
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chg_stat = (regval & MT6360_CHG_STAT_MASK) >> MT6360_CHG_STAT_SHFT; |
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switch (chg_stat) { |
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case 0x01: /* Charge in Progress */ |
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if (regval & MT6360_VBAT_LVL_MASK) |
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type = POWER_SUPPLY_CHARGE_TYPE_FAST; |
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else |
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type = POWER_SUPPLY_CHARGE_TYPE_TRICKLE; |
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break; |
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case 0x00: /* Not Charging */ |
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case 0x02: /* Charge Done */ |
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case 0x03: /* Charge Fault */ |
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default: |
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type = POWER_SUPPLY_CHARGE_TYPE_NONE; |
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break; |
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} |
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val->intval = type; |
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return 0; |
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} |
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static int mt6360_charger_get_ichg(struct mt6360_chg_info *mci, |
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union power_supply_propval *val) |
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{ |
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int ret; |
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u32 sel, value; |
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ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL7, &sel); |
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if (ret < 0) |
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return ret; |
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sel = (sel & MT6360_ICHG_MASK) >> MT6360_ICHG_SHFT; |
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ret = linear_range_get_value(&mt6360_chg_range[MT6360_RANGE_ICHG], sel, &value); |
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if (!ret) |
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val->intval = value; |
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return ret; |
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} |
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static int mt6360_charger_get_max_ichg(struct mt6360_chg_info *mci, |
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union power_supply_propval *val) |
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{ |
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val->intval = MT6360_ICHG_MAX; |
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return 0; |
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} |
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static int mt6360_charger_get_cv(struct mt6360_chg_info *mci, |
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union power_supply_propval *val) |
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{ |
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int ret; |
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u32 sel, value; |
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ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL4, &sel); |
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if (ret < 0) |
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return ret; |
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sel = (sel & MT6360_VOREG_MASK) >> MT6360_VOREG_SHFT; |
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ret = linear_range_get_value(&mt6360_chg_range[MT6360_RANGE_VOREG], sel, &value); |
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if (!ret) |
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val->intval = value; |
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return ret; |
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} |
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static int mt6360_charger_get_max_cv(struct mt6360_chg_info *mci, |
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union power_supply_propval *val) |
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{ |
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val->intval = MT6360_VOREG_MAX; |
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return 0; |
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} |
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static int mt6360_charger_get_aicr(struct mt6360_chg_info *mci, |
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union power_supply_propval *val) |
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{ |
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int ret; |
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u32 sel, value; |
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ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL3, &sel); |
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if (ret < 0) |
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return ret; |
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sel = (sel & MT6360_IAICR_MASK) >> MT6360_IAICR_SHFT; |
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ret = linear_range_get_value(&mt6360_chg_range[MT6360_RANGE_AICR], sel, &value); |
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if (!ret) |
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val->intval = value; |
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return ret; |
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} |
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static int mt6360_charger_get_mivr(struct mt6360_chg_info *mci, |
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union power_supply_propval *val) |
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{ |
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int ret; |
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u32 sel, value; |
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ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL6, &sel); |
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if (ret < 0) |
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return ret; |
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sel = (sel & MT6360_VMIVR_MASK) >> MT6360_VMIVR_SHFT; |
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ret = linear_range_get_value(&mt6360_chg_range[MT6360_RANGE_VMIVR], sel, &value); |
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if (!ret) |
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val->intval = value; |
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return ret; |
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} |
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static int mt6360_charger_get_iprechg(struct mt6360_chg_info *mci, |
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union power_supply_propval *val) |
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{ |
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int ret; |
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u32 sel, value; |
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ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL8, &sel); |
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if (ret < 0) |
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return ret; |
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sel = (sel & MT6360_IPREC_MASK) >> MT6360_IPREC_SHFT; |
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ret = linear_range_get_value(&mt6360_chg_range[MT6360_RANGE_IPREC], sel, &value); |
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if (!ret) |
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val->intval = value; |
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return ret; |
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} |
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static int mt6360_charger_get_ieoc(struct mt6360_chg_info *mci, |
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union power_supply_propval *val) |
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{ |
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int ret; |
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u32 sel, value; |
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ret = regmap_read(mci->regmap, MT6360_PMU_CHG_CTRL9, &sel); |
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if (ret < 0) |
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return ret; |
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sel = (sel & MT6360_IEOC_MASK) >> MT6360_IEOC_SHFT; |
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ret = linear_range_get_value(&mt6360_chg_range[MT6360_RANGE_IEOC], sel, &value); |
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if (!ret) |
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val->intval = value; |
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return ret; |
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} |
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static int mt6360_charger_set_online(struct mt6360_chg_info *mci, |
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const union power_supply_propval *val) |
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{ |
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u8 force_sleep = val->intval ? 0 : 1; |
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return regmap_update_bits(mci->regmap, |
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MT6360_PMU_CHG_CTRL1, |
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MT6360_FSLP_MASK, |
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force_sleep << MT6360_FSLP_SHFT); |
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} |
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static int mt6360_charger_set_ichg(struct mt6360_chg_info *mci, |
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const union power_supply_propval *val) |
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{ |
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u32 sel; |
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linear_range_get_selector_within(&mt6360_chg_range[MT6360_RANGE_ICHG], val->intval, &sel); |
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return regmap_update_bits(mci->regmap, |
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MT6360_PMU_CHG_CTRL7, |
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MT6360_ICHG_MASK, |
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sel << MT6360_ICHG_SHFT); |
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} |
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static int mt6360_charger_set_cv(struct mt6360_chg_info *mci, |
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const union power_supply_propval *val) |
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{ |
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u32 sel; |
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linear_range_get_selector_within(&mt6360_chg_range[MT6360_RANGE_VOREG], val->intval, &sel); |
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return regmap_update_bits(mci->regmap, |
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MT6360_PMU_CHG_CTRL4, |
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MT6360_VOREG_MASK, |
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sel << MT6360_VOREG_SHFT); |
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} |
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static int mt6360_charger_set_aicr(struct mt6360_chg_info *mci, |
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const union power_supply_propval *val) |
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{ |
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u32 sel; |
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linear_range_get_selector_within(&mt6360_chg_range[MT6360_RANGE_AICR], val->intval, &sel); |
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return regmap_update_bits(mci->regmap, |
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MT6360_PMU_CHG_CTRL3, |
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MT6360_IAICR_MASK, |
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sel << MT6360_IAICR_SHFT); |
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} |
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static int mt6360_charger_set_mivr(struct mt6360_chg_info *mci, |
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const union power_supply_propval *val) |
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{ |
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u32 sel; |
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|
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linear_range_get_selector_within(&mt6360_chg_range[MT6360_RANGE_VMIVR], val->intval, &sel); |
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return regmap_update_bits(mci->regmap, |
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MT6360_PMU_CHG_CTRL3, |
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MT6360_VMIVR_MASK, |
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sel << MT6360_VMIVR_SHFT); |
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} |
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static int mt6360_charger_set_iprechg(struct mt6360_chg_info *mci, |
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const union power_supply_propval *val) |
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{ |
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u32 sel; |
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|
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linear_range_get_selector_within(&mt6360_chg_range[MT6360_RANGE_IPREC], val->intval, &sel); |
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return regmap_update_bits(mci->regmap, |
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MT6360_PMU_CHG_CTRL8, |
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MT6360_IPREC_MASK, |
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sel << MT6360_IPREC_SHFT); |
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} |
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static int mt6360_charger_set_ieoc(struct mt6360_chg_info *mci, |
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const union power_supply_propval *val) |
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{ |
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u32 sel; |
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|
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linear_range_get_selector_within(&mt6360_chg_range[MT6360_RANGE_IEOC], val->intval, &sel); |
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return regmap_update_bits(mci->regmap, |
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MT6360_PMU_CHG_CTRL9, |
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MT6360_IEOC_MASK, |
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sel << MT6360_IEOC_SHFT); |
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} |
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static int mt6360_charger_get_property(struct power_supply *psy, |
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enum power_supply_property psp, |
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union power_supply_propval *val) |
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{ |
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struct mt6360_chg_info *mci = power_supply_get_drvdata(psy); |
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int ret = 0; |
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switch (psp) { |
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case POWER_SUPPLY_PROP_ONLINE: |
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ret = mt6360_charger_get_online(mci, val); |
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break; |
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case POWER_SUPPLY_PROP_STATUS: |
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ret = mt6360_charger_get_status(mci, val); |
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break; |
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case POWER_SUPPLY_PROP_CHARGE_TYPE: |
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ret = mt6360_charger_get_charge_type(mci, val); |
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break; |
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case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: |
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ret = mt6360_charger_get_ichg(mci, val); |
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break; |
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case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX: |
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ret = mt6360_charger_get_max_ichg(mci, val); |
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break; |
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case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE: |
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ret = mt6360_charger_get_cv(mci, val); |
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break; |
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case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX: |
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ret = mt6360_charger_get_max_cv(mci, val); |
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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 = 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, |
|
.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); |
|
devm_work_autocancel(&pdev->dev, &mci->chrdet_work, mt6360_chrdet_work); |
|
|
|
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 <[email protected]>"); |
|
MODULE_DESCRIPTION("MT6360 Charger Driver"); |
|
MODULE_LICENSE("GPL");
|
|
|