diff options
| -rw-r--r-- | MAINTAINERS | 1 | ||||
| -rw-r--r-- | drivers/phy/motorola/phy-cpcap-usb.c | 8 | ||||
| -rw-r--r-- | drivers/power/reset/gpio-restart.c | 2 | ||||
| -rw-r--r-- | drivers/power/reset/reboot-mode.c | 2 | ||||
| -rw-r--r-- | drivers/power/supply/ab8500_charger.c | 9 | ||||
| -rw-r--r-- | drivers/power/supply/axp288_fuel_gauge.c | 14 | ||||
| -rw-r--r-- | drivers/power/supply/bq25890_charger.c | 12 | ||||
| -rw-r--r-- | drivers/power/supply/cpcap-charger.c | 23 | ||||
| -rw-r--r-- | drivers/power/supply/isp1704_charger.c | 2 | ||||
| -rw-r--r-- | drivers/power/supply/max17042_battery.c | 8 | ||||
| -rw-r--r-- | drivers/power/supply/max77650-charger.c | 1 | ||||
| -rw-r--r-- | drivers/power/supply/power_supply_core.c | 10 | ||||
| -rw-r--r-- | drivers/power/supply/power_supply_hwmon.c | 15 | ||||
| -rw-r--r-- | drivers/power/supply/sbs-battery.c | 27 | ||||
| -rw-r--r-- | drivers/power/supply/sc27xx_fuel_gauge.c | 223 |
15 files changed, 237 insertions, 120 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index 9267a42655cc..a400af0501c9 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11511,7 +11511,6 @@ NOKIA N900 POWER SUPPLY DRIVERS R: Pali Rohár <pali.rohar@gmail.com> F: include/linux/power/bq2415x_charger.h F: include/linux/power/bq27xxx_battery.h -F: include/linux/power/isp1704_charger.h F: drivers/power/supply/bq2415x_charger.c F: drivers/power/supply/bq27xxx_battery.c F: drivers/power/supply/bq27xxx_battery_i2c.c diff --git a/drivers/phy/motorola/phy-cpcap-usb.c b/drivers/phy/motorola/phy-cpcap-usb.c index 6601ad0dfb3a..ead06c6c2601 100644 --- a/drivers/phy/motorola/phy-cpcap-usb.c +++ b/drivers/phy/motorola/phy-cpcap-usb.c @@ -231,8 +231,9 @@ static void cpcap_usb_detect(struct work_struct *work) goto out_err; error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC3, - CPCAP_BIT_VBUSSTBY_EN, - CPCAP_BIT_VBUSSTBY_EN); + CPCAP_BIT_VBUSSTBY_EN | + CPCAP_BIT_VBUSEN_SPI, + CPCAP_BIT_VBUSEN_SPI); if (error) goto out_err; @@ -240,7 +241,8 @@ static void cpcap_usb_detect(struct work_struct *work) } error = regmap_update_bits(ddata->reg, CPCAP_REG_USBC3, - CPCAP_BIT_VBUSSTBY_EN, 0); + CPCAP_BIT_VBUSSTBY_EN | + CPCAP_BIT_VBUSEN_SPI, 0); if (error) goto out_err; diff --git a/drivers/power/reset/gpio-restart.c b/drivers/power/reset/gpio-restart.c index 2880cd5ae0d2..308ca9d9d276 100644 --- a/drivers/power/reset/gpio-restart.c +++ b/drivers/power/reset/gpio-restart.c @@ -65,7 +65,7 @@ static int gpio_restart_probe(struct platform_device *pdev) gpio_restart->reset_gpio = devm_gpiod_get(&pdev->dev, NULL, open_source ? GPIOD_IN : GPIOD_OUT_LOW); if (IS_ERR(gpio_restart->reset_gpio)) { - dev_err(&pdev->dev, "Could net get reset GPIO\n"); + dev_err(&pdev->dev, "Could not get reset GPIO\n"); return PTR_ERR(gpio_restart->reset_gpio); } diff --git a/drivers/power/reset/reboot-mode.c b/drivers/power/reset/reboot-mode.c index 06ff035b57f5..b4076b10b893 100644 --- a/drivers/power/reset/reboot-mode.c +++ b/drivers/power/reset/reboot-mode.c @@ -190,6 +190,6 @@ void devm_reboot_mode_unregister(struct device *dev, } EXPORT_SYMBOL_GPL(devm_reboot_mode_unregister); -MODULE_AUTHOR("Andy Yan <andy.yan@rock-chips.com"); +MODULE_AUTHOR("Andy Yan <andy.yan@rock-chips.com>"); MODULE_DESCRIPTION("System reboot mode core library"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/power/supply/ab8500_charger.c b/drivers/power/supply/ab8500_charger.c index 86d88aec94a1..e51d0e72beea 100644 --- a/drivers/power/supply/ab8500_charger.c +++ b/drivers/power/supply/ab8500_charger.c @@ -742,7 +742,7 @@ static int ab8500_charger_max_usb_curr(struct ab8500_charger *di, USB_CH_IP_CUR_LVL_1P5; break; } - /* Else, fall through */ + /* else, fall through */ case USB_STAT_HM_IDGND: dev_err(di->dev, "USB Type - Charging not allowed\n"); di->max_usb_in_curr.usb_type_max = USB_CH_IP_CUR_LVL_0P05; @@ -3011,7 +3011,6 @@ static int ab8500_charger_usb_get_property(struct power_supply *psy, static int ab8500_charger_init_hw_registers(struct ab8500_charger *di) { int ret = 0; - u8 bup_vch_range = 0, vbup33_vrtcn = 0; /* Setup maximum charger current and voltage for ABB cut2.0 */ if (!is_ab8500_1p1_or_earlier(di->parent)) { @@ -3112,12 +3111,6 @@ static int ab8500_charger_init_hw_registers(struct ab8500_charger *di) goto out; } - /* Backup battery voltage and current */ - if (di->bm->bkup_bat_v > BUP_VCH_SEL_3P1V) - bup_vch_range = BUP_VCH_RANGE; - if (di->bm->bkup_bat_v == BUP_VCH_SEL_3P3V) - vbup33_vrtcn = VBUP33_VRTCN; - ret = abx500_set_register_interruptible(di->dev, AB8500_RTC, AB8500_RTC_BACKUP_CHG_REG, diff --git a/drivers/power/supply/axp288_fuel_gauge.c b/drivers/power/supply/axp288_fuel_gauge.c index 44169dabb705..e1bc4e6e6f30 100644 --- a/drivers/power/supply/axp288_fuel_gauge.c +++ b/drivers/power/supply/axp288_fuel_gauge.c @@ -674,6 +674,7 @@ intr_failed: /* * Some devices have no battery (HDMI sticks) and the axp288 battery's * detection reports one despite it not being there. + * Please keep this listed sorted alphabetically. */ static const struct dmi_system_id axp288_fuel_gauge_blacklist[] = { { @@ -697,6 +698,12 @@ static const struct dmi_system_id axp288_fuel_gauge_blacklist[] = { }, }, { + /* ECS EF20EA */ + .matches = { + DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"), + }, + }, + { /* Intel Cherry Trail Compute Stick, Windows version */ .matches = { DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"), @@ -720,10 +727,11 @@ static const struct dmi_system_id axp288_fuel_gauge_blacklist[] = { }, }, { - /* ECS EF20EA */ + /* Minix Neo Z83-4 mini PC */ .matches = { - DMI_MATCH(DMI_PRODUCT_NAME, "EF20EA"), - }, + DMI_MATCH(DMI_SYS_VENDOR, "MINIX"), + DMI_MATCH(DMI_PRODUCT_NAME, "Z83-4"), + } }, {} }; diff --git a/drivers/power/supply/bq25890_charger.c b/drivers/power/supply/bq25890_charger.c index d333f2b321b9..9d1ec8d677de 100644 --- a/drivers/power/supply/bq25890_charger.c +++ b/drivers/power/supply/bq25890_charger.c @@ -22,6 +22,7 @@ #define BQ25890_IRQ_PIN "bq25890_irq" #define BQ25890_ID 3 +#define BQ25895_ID 7 #define BQ25896_ID 0 enum bq25890_fields { @@ -171,7 +172,7 @@ static const struct reg_field bq25890_reg_fields[] = { [F_WD] = REG_FIELD(0x07, 4, 5), [F_TMR_EN] = REG_FIELD(0x07, 3, 3), [F_CHG_TMR] = REG_FIELD(0x07, 1, 2), - [F_JEITA_ISET] = REG_FIELD(0x07, 0, 0), + [F_JEITA_ISET] = REG_FIELD(0x07, 0, 0), // reserved on BQ25895 /* REG08 */ [F_BATCMP] = REG_FIELD(0x08, 5, 7), [F_VCLAMP] = REG_FIELD(0x08, 2, 4), @@ -180,7 +181,7 @@ static const struct reg_field bq25890_reg_fields[] = { [F_FORCE_ICO] = REG_FIELD(0x09, 7, 7), [F_TMR2X_EN] = REG_FIELD(0x09, 6, 6), [F_BATFET_DIS] = REG_FIELD(0x09, 5, 5), - [F_JEITA_VSET] = REG_FIELD(0x09, 4, 4), + [F_JEITA_VSET] = REG_FIELD(0x09, 4, 4), // reserved on BQ25895 [F_BATFET_DLY] = REG_FIELD(0x09, 3, 3), [F_BATFET_RST_EN] = REG_FIELD(0x09, 2, 2), [F_PUMPX_UP] = REG_FIELD(0x09, 1, 1), @@ -188,7 +189,7 @@ static const struct reg_field bq25890_reg_fields[] = { /* REG0A */ [F_BOOSTV] = REG_FIELD(0x0A, 4, 7), /* PFM_OTG_DIS 3 on BQ25896 */ - [F_BOOSTI] = REG_FIELD(0x0A, 0, 2), + [F_BOOSTI] = REG_FIELD(0x0A, 0, 2), // reserved on BQ25895 /* REG0B */ [F_VBUS_STAT] = REG_FIELD(0x0B, 5, 7), [F_CHG_STAT] = REG_FIELD(0x0B, 3, 4), @@ -392,6 +393,8 @@ static int bq25890_power_supply_get_property(struct power_supply *psy, case POWER_SUPPLY_PROP_MODEL_NAME: if (bq->chip_id == BQ25890_ID) val->strval = "BQ25890"; + else if (bq->chip_id == BQ25895_ID) + val->strval = "BQ25895"; else if (bq->chip_id == BQ25896_ID) val->strval = "BQ25896"; else @@ -862,7 +865,8 @@ static int bq25890_probe(struct i2c_client *client, return bq->chip_id; } - if ((bq->chip_id != BQ25890_ID) && (bq->chip_id != BQ25896_ID)) { + if ((bq->chip_id != BQ25890_ID) && (bq->chip_id != BQ25895_ID) + && (bq->chip_id != BQ25896_ID)) { dev_err(dev, "Chip with ID=%d, not supported!\n", bq->chip_id); return -ENODEV; } diff --git a/drivers/power/supply/cpcap-charger.c b/drivers/power/supply/cpcap-charger.c index cc546bc40a78..74258c7fe17d 100644 --- a/drivers/power/supply/cpcap-charger.c +++ b/drivers/power/supply/cpcap-charger.c @@ -108,6 +108,9 @@ #define CPCAP_REG_CRM_ICHRG_1A596 CPCAP_REG_CRM_ICHRG(0xe) #define CPCAP_REG_CRM_ICHRG_NO_LIMIT CPCAP_REG_CRM_ICHRG(0xf) +/* CPCAP_REG_VUSBC register bits needed for VBUS */ +#define CPCAP_BIT_VBUS_SWITCH BIT(0) /* VBUS boost to 5V */ + enum { CPCAP_CHARGER_IIO_BATTDET, CPCAP_CHARGER_IIO_VOLTAGE, @@ -130,7 +133,8 @@ struct cpcap_charger_ddata { struct power_supply *usb; struct phy_companion comparator; /* For USB VBUS */ - bool vbus_enabled; + unsigned int vbus_enabled:1; + unsigned int feeding_vbus:1; atomic_t active; int status; @@ -325,7 +329,6 @@ static bool cpcap_charger_vbus_valid(struct cpcap_charger_ddata *ddata) } /* VBUS control functions for the USB PHY companion */ - static void cpcap_charger_vbus_work(struct work_struct *work) { struct cpcap_charger_ddata *ddata; @@ -343,6 +346,7 @@ static void cpcap_charger_vbus_work(struct work_struct *work) return; } + ddata->feeding_vbus = true; cpcap_charger_set_cable_path(ddata, false); cpcap_charger_set_inductive_path(ddata, false); @@ -350,12 +354,23 @@ static void cpcap_charger_vbus_work(struct work_struct *work) if (error) goto out_err; + error = regmap_update_bits(ddata->reg, CPCAP_REG_VUSBC, + CPCAP_BIT_VBUS_SWITCH, + CPCAP_BIT_VBUS_SWITCH); + if (error) + goto out_err; + error = regmap_update_bits(ddata->reg, CPCAP_REG_CRM, CPCAP_REG_CRM_RVRSMODE, CPCAP_REG_CRM_RVRSMODE); if (error) goto out_err; } else { + error = regmap_update_bits(ddata->reg, CPCAP_REG_VUSBC, + CPCAP_BIT_VBUS_SWITCH, 0); + if (error) + goto out_err; + error = regmap_update_bits(ddata->reg, CPCAP_REG_CRM, CPCAP_REG_CRM_RVRSMODE, 0); if (error) @@ -363,6 +378,7 @@ static void cpcap_charger_vbus_work(struct work_struct *work) cpcap_charger_set_cable_path(ddata, true); cpcap_charger_set_inductive_path(ddata, true); + ddata->feeding_vbus = false; } return; @@ -431,7 +447,8 @@ static void cpcap_usb_detect(struct work_struct *work) if (error) return; - if (cpcap_charger_vbus_valid(ddata) && s.chrgcurr1) { + if (!ddata->feeding_vbus && cpcap_charger_vbus_valid(ddata) && + s.chrgcurr1) { int max_current; if (cpcap_charger_battery_found(ddata)) diff --git a/drivers/power/supply/isp1704_charger.c b/drivers/power/supply/isp1704_charger.c index b48cb7aba97b..4812ac1ff2df 100644 --- a/drivers/power/supply/isp1704_charger.c +++ b/drivers/power/supply/isp1704_charger.c @@ -342,7 +342,7 @@ static inline int isp1704_test_ulpi(struct isp1704_charger *isp) int vendor; int product; int i; - int ret = -ENODEV; + int ret; /* Test ULPI interface */ ret = isp1704_write(isp, ULPI_SCRATCH, 0xaa); diff --git a/drivers/power/supply/max17042_battery.c b/drivers/power/supply/max17042_battery.c index 64f3358eaa3c..0dfad2cf13fe 100644 --- a/drivers/power/supply/max17042_battery.c +++ b/drivers/power/supply/max17042_battery.c @@ -511,7 +511,7 @@ static inline void max17042_override_por(struct regmap *map, regmap_write(map, reg, value); } -static inline void max10742_unlock_model(struct max17042_chip *chip) +static inline void max17042_unlock_model(struct max17042_chip *chip) { struct regmap *map = chip->regmap; @@ -519,7 +519,7 @@ static inline void max10742_unlock_model(struct max17042_chip *chip) regmap_write(map, MAX17042_MLOCKReg2, MODEL_UNLOCK2); } -static inline void max10742_lock_model(struct max17042_chip *chip) +static inline void max17042_lock_model(struct max17042_chip *chip) { struct regmap *map = chip->regmap; @@ -577,7 +577,7 @@ static int max17042_init_model(struct max17042_chip *chip) if (!temp_data) return -ENOMEM; - max10742_unlock_model(chip); + max17042_unlock_model(chip); max17042_write_model_data(chip, MAX17042_MODELChrTbl, table_size); max17042_read_model_data(chip, MAX17042_MODELChrTbl, temp_data, @@ -589,7 +589,7 @@ static int max17042_init_model(struct max17042_chip *chip) temp_data, table_size); - max10742_lock_model(chip); + max17042_lock_model(chip); kfree(temp_data); return ret; diff --git a/drivers/power/supply/max77650-charger.c b/drivers/power/supply/max77650-charger.c index e34714cb05ec..5f9477c5cf5a 100644 --- a/drivers/power/supply/max77650-charger.c +++ b/drivers/power/supply/max77650-charger.c @@ -366,3 +366,4 @@ module_platform_driver(max77650_charger_driver); MODULE_DESCRIPTION("MAXIM 77650/77651 charger driver"); MODULE_AUTHOR("Bartosz Golaszewski <bgolaszewski@baylibre.com>"); MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:max77650-charger"); diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/supply/power_supply_core.c index 82e84801264c..5c36c430ce8b 100644 --- a/drivers/power/supply/power_supply_core.c +++ b/drivers/power/supply/power_supply_core.c @@ -1051,14 +1051,14 @@ __power_supply_register(struct device *parent, } spin_lock_init(&psy->changed_lock); - rc = device_init_wakeup(dev, ws); - if (rc) - goto wakeup_init_failed; - rc = device_add(dev); if (rc) goto device_add_failed; + rc = device_init_wakeup(dev, ws); + if (rc) + goto wakeup_init_failed; + rc = psy_register_thermal(psy); if (rc) goto register_thermal_failed; @@ -1101,8 +1101,8 @@ register_cooler_failed: psy_unregister_thermal(psy); register_thermal_failed: device_del(dev); -device_add_failed: wakeup_init_failed: +device_add_failed: check_supplies_failed: dev_set_name_failed: put_device(dev); diff --git a/drivers/power/supply/power_supply_hwmon.c b/drivers/power/supply/power_supply_hwmon.c index 51fe60440d12..75cf861ba492 100644 --- a/drivers/power/supply/power_supply_hwmon.c +++ b/drivers/power/supply/power_supply_hwmon.c @@ -284,6 +284,7 @@ int power_supply_add_hwmon_sysfs(struct power_supply *psy) struct device *dev = &psy->dev; struct device *hwmon; int ret, i; + const char *name; if (!devres_open_group(dev, power_supply_add_hwmon_sysfs, GFP_KERNEL)) @@ -334,7 +335,19 @@ int power_supply_add_hwmon_sysfs(struct power_supply *psy) } } - hwmon = devm_hwmon_device_register_with_info(dev, psy->desc->name, + name = psy->desc->name; + if (strchr(name, '-')) { + char *new_name; + + new_name = devm_kstrdup(dev, name, GFP_KERNEL); + if (!new_name) { + ret = -ENOMEM; + goto error; + } + strreplace(new_name, '-', '_'); + name = new_name; + } + hwmon = devm_hwmon_device_register_with_info(dev, name, psyhw, &power_supply_hwmon_chip_info, NULL); diff --git a/drivers/power/supply/sbs-battery.c b/drivers/power/supply/sbs-battery.c index 048d205d7074..f8d74e9f7931 100644 --- a/drivers/power/supply/sbs-battery.c +++ b/drivers/power/supply/sbs-battery.c @@ -314,17 +314,22 @@ static int sbs_get_battery_presence_and_health( { int ret; - if (psp == POWER_SUPPLY_PROP_PRESENT) { - /* Dummy command; if it succeeds, battery is present. */ - ret = sbs_read_word_data(client, sbs_data[REG_STATUS].addr); - if (ret < 0) - val->intval = 0; /* battery disconnected */ - else - val->intval = 1; /* battery present */ - } else { /* POWER_SUPPLY_PROP_HEALTH */ + /* Dummy command; if it succeeds, battery is present. */ + ret = sbs_read_word_data(client, sbs_data[REG_STATUS].addr); + + if (ret < 0) { /* battery not present*/ + if (psp == POWER_SUPPLY_PROP_PRESENT) { + val->intval = 0; + return 0; + } + return ret; + } + + if (psp == POWER_SUPPLY_PROP_PRESENT) + val->intval = 1; /* battery present */ + else /* POWER_SUPPLY_PROP_HEALTH */ /* SBS spec doesn't have a general health command. */ val->intval = POWER_SUPPLY_HEALTH_UNKNOWN; - } return 0; } @@ -620,12 +625,14 @@ static int sbs_get_property(struct power_supply *psy, switch (psp) { case POWER_SUPPLY_PROP_PRESENT: case POWER_SUPPLY_PROP_HEALTH: - if (client->flags & SBS_FLAGS_TI_BQ20Z75) + if (chip->flags & SBS_FLAGS_TI_BQ20Z75) ret = sbs_get_ti_battery_presence_and_health(client, psp, val); else ret = sbs_get_battery_presence_and_health(client, psp, val); + + /* this can only be true if no gpio is used */ if (psp == POWER_SUPPLY_PROP_PRESENT) return 0; break; diff --git a/drivers/power/supply/sc27xx_fuel_gauge.c b/drivers/power/supply/sc27xx_fuel_gauge.c index 24895cc3b41e..bc8f5bda5762 100644 --- a/drivers/power/supply/sc27xx_fuel_gauge.c +++ b/drivers/power/supply/sc27xx_fuel_gauge.c @@ -109,6 +109,9 @@ struct sc27xx_fgu_data { }; static int sc27xx_fgu_cap_to_clbcnt(struct sc27xx_fgu_data *data, int capacity); +static void sc27xx_fgu_capacity_calibration(struct sc27xx_fgu_data *data, + int cap, bool int_mode); +static void sc27xx_fgu_adjust_cap(struct sc27xx_fgu_data *data, int cap); static const char * const sc27xx_charger_supply_name[] = { "sc2731_charger", @@ -326,8 +329,6 @@ static int sc27xx_fgu_set_clbcnt(struct sc27xx_fgu_data *data, int clbcnt) { int ret; - clbcnt *= SC27XX_FGU_SAMPLE_HZ; - ret = regmap_update_bits(data->regmap, data->base + SC27XX_FGU_CLBCNT_SETL, SC27XX_FGU_CLBCNT_MASK, clbcnt); @@ -362,7 +363,6 @@ static int sc27xx_fgu_get_clbcnt(struct sc27xx_fgu_data *data, int *clb_cnt) *clb_cnt = ccl & SC27XX_FGU_CLBCNT_MASK; *clb_cnt |= (cch & SC27XX_FGU_CLBCNT_MASK) << SC27XX_FGU_CLBCNT_SHIFT; - *clb_cnt /= SC27XX_FGU_SAMPLE_HZ; return 0; } @@ -380,10 +380,10 @@ static int sc27xx_fgu_get_capacity(struct sc27xx_fgu_data *data, int *cap) /* * Convert coulomb counter to delta capacity (mAh), and set multiplier - * as 100 to improve the precision. + * as 10 to improve the precision. */ - temp = DIV_ROUND_CLOSEST(delta_clbcnt, 360); - temp = sc27xx_fgu_adc_to_current(data, temp); + temp = DIV_ROUND_CLOSEST(delta_clbcnt * 10, 36 * SC27XX_FGU_SAMPLE_HZ); + temp = sc27xx_fgu_adc_to_current(data, temp / 1000); /* * Convert to capacity percent of the battery total capacity, @@ -392,6 +392,9 @@ static int sc27xx_fgu_get_capacity(struct sc27xx_fgu_data *data, int *cap) delta_cap = DIV_ROUND_CLOSEST(temp * 100, data->total_cap); *cap = delta_cap + data->init_cap; + /* Calibrate the battery capacity in a normal range. */ + sc27xx_fgu_capacity_calibration(data, *cap, false); + return 0; } @@ -587,6 +590,10 @@ static int sc27xx_fgu_get_property(struct power_supply *psy, val->intval = value * 1000; break; + case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN: + val->intval = data->total_cap * 1000; + break; + default: ret = -EINVAL; break; @@ -604,17 +611,25 @@ static int sc27xx_fgu_set_property(struct power_supply *psy, struct sc27xx_fgu_data *data = power_supply_get_drvdata(psy); int ret; - if (psp != POWER_SUPPLY_PROP_CAPACITY) - return -EINVAL; - mutex_lock(&data->lock); - ret = sc27xx_fgu_save_last_cap(data, val->intval); + switch (psp) { + case POWER_SUPPLY_PROP_CAPACITY: + ret = sc27xx_fgu_save_last_cap(data, val->intval); + if (ret < 0) + dev_err(data->dev, "failed to save battery capacity\n"); + break; - mutex_unlock(&data->lock); + case POWER_SUPPLY_PROP_CALIBRATE: + sc27xx_fgu_adjust_cap(data, val->intval); + ret = 0; + break; - if (ret < 0) - dev_err(data->dev, "failed to save battery capacity\n"); + default: + ret = -EINVAL; + } + + mutex_unlock(&data->lock); return ret; } @@ -629,7 +644,8 @@ static void sc27xx_fgu_external_power_changed(struct power_supply *psy) static int sc27xx_fgu_property_is_writeable(struct power_supply *psy, enum power_supply_property psp) { - return psp == POWER_SUPPLY_PROP_CAPACITY; + return psp == POWER_SUPPLY_PROP_CAPACITY || + psp == POWER_SUPPLY_PROP_CALIBRATE; } static enum power_supply_property sc27xx_fgu_props[] = { @@ -644,6 +660,8 @@ static enum power_supply_property sc27xx_fgu_props[] = { POWER_SUPPLY_PROP_CURRENT_NOW, POWER_SUPPLY_PROP_CURRENT_AVG, POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE, + POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN, + POWER_SUPPLY_PROP_CALIBRATE, }; static const struct power_supply_desc sc27xx_fgu_desc = { @@ -659,50 +677,62 @@ static const struct power_supply_desc sc27xx_fgu_desc = { static void sc27xx_fgu_adjust_cap(struct sc27xx_fgu_data *data, int cap) { + int ret; + data->init_cap = cap; - data->init_clbcnt = sc27xx_fgu_cap_to_clbcnt(data, data->init_cap); + ret = sc27xx_fgu_get_clbcnt(data, &data->init_clbcnt); + if (ret) + dev_err(data->dev, "failed to get init coulomb counter\n"); } -static irqreturn_t sc27xx_fgu_interrupt(int irq, void *dev_id) +static void sc27xx_fgu_capacity_calibration(struct sc27xx_fgu_data *data, + int cap, bool int_mode) { - struct sc27xx_fgu_data *data = dev_id; - int ret, cap, ocv, adc; - u32 status; + int ret, ocv, chg_sts, adc; - mutex_lock(&data->lock); - - ret = regmap_read(data->regmap, data->base + SC27XX_FGU_INT_STS, - &status); - if (ret) - goto out; + ret = sc27xx_fgu_get_vbat_ocv(data, &ocv); + if (ret) { + dev_err(data->dev, "get battery ocv error.\n"); + return; + } - ret = regmap_update_bits(data->regmap, data->base + SC27XX_FGU_INT_CLR, - status, status); - if (ret) - goto out; + ret = sc27xx_fgu_get_status(data, &chg_sts); + if (ret) { + dev_err(data->dev, "get charger status error.\n"); + return; + } /* - * When low overload voltage interrupt happens, we should calibrate the - * battery capacity in lower voltage stage. + * If we are in charging mode, then we do not need to calibrate the + * lower capacity. */ - if (!(status & SC27XX_FGU_LOW_OVERLOAD_INT)) - goto out; - - ret = sc27xx_fgu_get_capacity(data, &cap); - if (ret) - goto out; + if (chg_sts == POWER_SUPPLY_STATUS_CHARGING) + return; - ret = sc27xx_fgu_get_vbat_ocv(data, &ocv); - if (ret) - goto out; - - /* - * If current OCV value is less than the minimum OCV value in OCV table, - * which means now battery capacity is 0%, and we should adjust the - * inititial capacity to 0. - */ - if (ocv <= data->cap_table[data->table_len - 1].ocv) { + if ((ocv > data->cap_table[0].ocv && cap < 100) || cap > 100) { + /* + * If current OCV value is larger than the max OCV value in + * OCV table, or the current capacity is larger than 100, + * we should force the inititial capacity to 100. + */ + sc27xx_fgu_adjust_cap(data, 100); + } else if (ocv <= data->cap_table[data->table_len - 1].ocv) { + /* + * If current OCV value is leass than the minimum OCV value in + * OCV table, we should force the inititial capacity to 0. + */ sc27xx_fgu_adjust_cap(data, 0); + } else if ((ocv > data->cap_table[data->table_len - 1].ocv && cap <= 0) || + (ocv > data->min_volt && cap <= data->alarm_cap)) { + /* + * If current OCV value is not matchable with current capacity, + * we should re-calculate current capacity by looking up the + * OCV table. + */ + int cur_cap = power_supply_ocv2cap_simple(data->cap_table, + data->table_len, ocv); + + sc27xx_fgu_adjust_cap(data, cur_cap); } else if (ocv <= data->min_volt) { /* * If current OCV value is less than the low alarm voltage, but @@ -711,7 +741,7 @@ static irqreturn_t sc27xx_fgu_interrupt(int irq, void *dev_id) */ if (cap > data->alarm_cap) { sc27xx_fgu_adjust_cap(data, data->alarm_cap); - } else if (cap <= 0) { + } else { int cur_cap; /* @@ -726,15 +756,55 @@ static irqreturn_t sc27xx_fgu_interrupt(int irq, void *dev_id) sc27xx_fgu_adjust_cap(data, cur_cap); } + if (!int_mode) + return; + /* * After adjusting the battery capacity, we should set the * lowest alarm voltage instead. */ data->min_volt = data->cap_table[data->table_len - 1].ocv; + data->alarm_cap = power_supply_ocv2cap_simple(data->cap_table, + data->table_len, + data->min_volt); + adc = sc27xx_fgu_voltage_to_adc(data, data->min_volt / 1000); - regmap_update_bits(data->regmap, data->base + SC27XX_FGU_LOW_OVERLOAD, + regmap_update_bits(data->regmap, + data->base + SC27XX_FGU_LOW_OVERLOAD, SC27XX_FGU_LOW_OVERLOAD_MASK, adc); } +} + +static irqreturn_t sc27xx_fgu_interrupt(int irq, void *dev_id) +{ + struct sc27xx_fgu_data *data = dev_id; + int ret, cap; + u32 status; + + mutex_lock(&data->lock); + + ret = regmap_read(data->regmap, data->base + SC27XX_FGU_INT_STS, + &status); + if (ret) + goto out; + + ret = regmap_update_bits(data->regmap, data->base + SC27XX_FGU_INT_CLR, + status, status); + if (ret) + goto out; + + /* + * When low overload voltage interrupt happens, we should calibrate the + * battery capacity in lower voltage stage. + */ + if (!(status & SC27XX_FGU_LOW_OVERLOAD_INT)) + goto out; + + ret = sc27xx_fgu_get_capacity(data, &cap); + if (ret) + goto out; + + sc27xx_fgu_capacity_calibration(data, cap, true); out: mutex_unlock(&data->lock); @@ -785,7 +855,7 @@ static int sc27xx_fgu_cap_to_clbcnt(struct sc27xx_fgu_data *data, int capacity) * Convert current capacity (mAh) to coulomb counter according to the * formula: 1 mAh =3.6 coulomb. */ - return DIV_ROUND_CLOSEST(cur_cap * 36 * data->cur_1000ma_adc, 10); + return DIV_ROUND_CLOSEST(cur_cap * 36 * data->cur_1000ma_adc * SC27XX_FGU_SAMPLE_HZ, 10); } static int sc27xx_fgu_calibration(struct sc27xx_fgu_data *data) @@ -856,6 +926,8 @@ static int sc27xx_fgu_hw_init(struct sc27xx_fgu_data *data) data->alarm_cap = power_supply_ocv2cap_simple(data->cap_table, data->table_len, data->min_volt); + if (!data->alarm_cap) + data->alarm_cap += 1; power_supply_put_battery_info(data->battery, &info); @@ -957,81 +1029,81 @@ disable_fgu: static int sc27xx_fgu_probe(struct platform_device *pdev) { - struct device_node *np = pdev->dev.of_node; + struct device *dev = &pdev->dev; + struct device_node *np = dev->of_node; struct power_supply_config fgu_cfg = { }; struct sc27xx_fgu_data *data; int ret, irq; - data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; - data->regmap = dev_get_regmap(pdev->dev.parent, NULL); + data->regmap = dev_get_regmap(dev->parent, NULL); if (!data->regmap) { - dev_err(&pdev->dev, "failed to get regmap\n"); + dev_err(dev, "failed to get regmap\n"); return -ENODEV; } - ret = device_property_read_u32(&pdev->dev, "reg", &data->base); + ret = device_property_read_u32(dev, "reg", &data->base); if (ret) { - dev_err(&pdev->dev, "failed to get fgu address\n"); + dev_err(dev, "failed to get fgu address\n"); return ret; } - data->channel = devm_iio_channel_get(&pdev->dev, "bat-temp"); + data->channel = devm_iio_channel_get(dev, "bat-temp"); if (IS_ERR(data->channel)) { - dev_err(&pdev->dev, "failed to get IIO channel\n"); + dev_err(dev, "failed to get IIO channel\n"); return PTR_ERR(data->channel); } - data->charge_chan = devm_iio_channel_get(&pdev->dev, "charge-vol"); + data->charge_chan = devm_iio_channel_get(dev, "charge-vol"); if (IS_ERR(data->charge_chan)) { - dev_err(&pdev->dev, "failed to get charge IIO channel\n"); + dev_err(dev, "failed to get charge IIO channel\n"); return PTR_ERR(data->charge_chan); } - data->gpiod = devm_gpiod_get(&pdev->dev, "bat-detect", GPIOD_IN); + data->gpiod = devm_gpiod_get(dev, "bat-detect", GPIOD_IN); if (IS_ERR(data->gpiod)) { - dev_err(&pdev->dev, "failed to get battery detection GPIO\n"); + dev_err(dev, "failed to get battery detection GPIO\n"); return PTR_ERR(data->gpiod); } ret = gpiod_get_value_cansleep(data->gpiod); if (ret < 0) { - dev_err(&pdev->dev, "failed to get gpio state\n"); + dev_err(dev, "failed to get gpio state\n"); return ret; } data->bat_present = !!ret; mutex_init(&data->lock); - data->dev = &pdev->dev; + data->dev = dev; platform_set_drvdata(pdev, data); fgu_cfg.drv_data = data; fgu_cfg.of_node = np; - data->battery = devm_power_supply_register(&pdev->dev, &sc27xx_fgu_desc, + data->battery = devm_power_supply_register(dev, &sc27xx_fgu_desc, &fgu_cfg); if (IS_ERR(data->battery)) { - dev_err(&pdev->dev, "failed to register power supply\n"); + dev_err(dev, "failed to register power supply\n"); return PTR_ERR(data->battery); } ret = sc27xx_fgu_hw_init(data); if (ret) { - dev_err(&pdev->dev, "failed to initialize fgu hardware\n"); + dev_err(dev, "failed to initialize fgu hardware\n"); return ret; } - ret = devm_add_action(&pdev->dev, sc27xx_fgu_disable, data); + ret = devm_add_action_or_reset(dev, sc27xx_fgu_disable, data); if (ret) { - sc27xx_fgu_disable(data); - dev_err(&pdev->dev, "failed to add fgu disable action\n"); + dev_err(dev, "failed to add fgu disable action\n"); return ret; } irq = platform_get_irq(pdev, 0); if (irq < 0) { - dev_err(&pdev->dev, "no irq resource specified\n"); + dev_err(dev, "no irq resource specified\n"); return irq; } @@ -1046,17 +1118,17 @@ static int sc27xx_fgu_probe(struct platform_device *pdev) irq = gpiod_to_irq(data->gpiod); if (irq < 0) { - dev_err(&pdev->dev, "failed to translate GPIO to IRQ\n"); + dev_err(dev, "failed to translate GPIO to IRQ\n"); return irq; } - ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, + ret = devm_request_threaded_irq(dev, irq, NULL, sc27xx_fgu_bat_detection, IRQF_ONESHOT | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, pdev->name, data); if (ret) { - dev_err(&pdev->dev, "failed to request IRQ\n"); + dev_err(dev, "failed to request IRQ\n"); return ret; } @@ -1093,7 +1165,8 @@ static int sc27xx_fgu_suspend(struct device *dev) * If we are charging, then no need to enable the FGU interrupts to * adjust the battery capacity. */ - if (status != POWER_SUPPLY_STATUS_NOT_CHARGING) + if (status != POWER_SUPPLY_STATUS_NOT_CHARGING && + status != POWER_SUPPLY_STATUS_DISCHARGING) return 0; ret = regmap_update_bits(data->regmap, data->base + SC27XX_FGU_INT_EN, |