diff options
Diffstat (limited to 'drivers/power/supply/bq24190_charger.c')
| -rw-r--r-- | drivers/power/supply/bq24190_charger.c | 149 |
1 files changed, 114 insertions, 35 deletions
diff --git a/drivers/power/supply/bq24190_charger.c b/drivers/power/supply/bq24190_charger.c index bd9e5c3d8cc2..d5a707e14526 100644 --- a/drivers/power/supply/bq24190_charger.c +++ b/drivers/power/supply/bq24190_charger.c @@ -533,6 +533,9 @@ static int bq24190_register_reset(struct bq24190_dev_info *bdi) int ret, limit = 100; u8 v; + if (device_property_read_bool(bdi->dev, "disable-reset")) + return 0; + /* Reset the registers */ ret = bq24190_write_mask(bdi, BQ24190_REG_POC, BQ24190_REG_POC_RESET_MASK, @@ -659,22 +662,25 @@ static int bq24190_charger_get_health(struct bq24190_dev_info *bdi, v = bdi->f_reg; mutex_unlock(&bdi->f_reg_lock); - if (v & BQ24190_REG_F_BOOST_FAULT_MASK) { - /* - * This could be over-current or over-voltage but there's - * no way to tell which. Return 'OVERVOLTAGE' since there - * isn't an 'OVERCURRENT' value defined that we can return - * even if it was over-current. - */ - health = POWER_SUPPLY_HEALTH_OVERVOLTAGE; - } else { - v &= BQ24190_REG_F_CHRG_FAULT_MASK; - v >>= BQ24190_REG_F_CHRG_FAULT_SHIFT; - - switch (v) { - case 0x0: /* Normal */ - health = POWER_SUPPLY_HEALTH_GOOD; + if (v & BQ24190_REG_F_NTC_FAULT_MASK) { + switch (v >> BQ24190_REG_F_NTC_FAULT_SHIFT & 0x7) { + case 0x1: /* TS1 Cold */ + case 0x3: /* TS2 Cold */ + case 0x5: /* Both Cold */ + health = POWER_SUPPLY_HEALTH_COLD; + break; + case 0x2: /* TS1 Hot */ + case 0x4: /* TS2 Hot */ + case 0x6: /* Both Hot */ + health = POWER_SUPPLY_HEALTH_OVERHEAT; break; + default: + health = POWER_SUPPLY_HEALTH_UNKNOWN; + } + } else if (v & BQ24190_REG_F_BAT_FAULT_MASK) { + health = POWER_SUPPLY_HEALTH_OVERVOLTAGE; + } else if (v & BQ24190_REG_F_CHRG_FAULT_MASK) { + switch (v >> BQ24190_REG_F_CHRG_FAULT_SHIFT & 0x3) { case 0x1: /* Input Fault (VBUS OVP or VBAT<VBUS<3.8V) */ /* * This could be over-voltage or under-voltage @@ -691,9 +697,19 @@ static int bq24190_charger_get_health(struct bq24190_dev_info *bdi, case 0x3: /* Charge Safety Timer Expiration */ health = POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE; break; - default: - health = POWER_SUPPLY_HEALTH_UNKNOWN; + default: /* prevent compiler warning */ + health = -1; } + } else if (v & BQ24190_REG_F_BOOST_FAULT_MASK) { + /* + * This could be over-current or over-voltage but there's + * no way to tell which. Return 'OVERVOLTAGE' since there + * isn't an 'OVERCURRENT' value defined that we can return + * even if it was over-current. + */ + health = POWER_SUPPLY_HEALTH_OVERVOLTAGE; + } else { + health = POWER_SUPPLY_HEALTH_GOOD; } val->intval = health; @@ -704,19 +720,59 @@ static int bq24190_charger_get_health(struct bq24190_dev_info *bdi, static int bq24190_charger_get_online(struct bq24190_dev_info *bdi, union power_supply_propval *val) { - u8 v; + u8 pg_stat, batfet_disable; int ret; ret = bq24190_read_mask(bdi, BQ24190_REG_SS, BQ24190_REG_SS_PG_STAT_MASK, - BQ24190_REG_SS_PG_STAT_SHIFT, &v); + BQ24190_REG_SS_PG_STAT_SHIFT, &pg_stat); if (ret < 0) return ret; - val->intval = v; + ret = bq24190_read_mask(bdi, BQ24190_REG_MOC, + BQ24190_REG_MOC_BATFET_DISABLE_MASK, + BQ24190_REG_MOC_BATFET_DISABLE_SHIFT, &batfet_disable); + if (ret < 0) + return ret; + + val->intval = pg_stat && !batfet_disable; + return 0; } +static int bq24190_battery_set_online(struct bq24190_dev_info *bdi, + const union power_supply_propval *val); +static int bq24190_battery_get_status(struct bq24190_dev_info *bdi, + union power_supply_propval *val); +static int bq24190_battery_get_temp_alert_max(struct bq24190_dev_info *bdi, + union power_supply_propval *val); +static int bq24190_battery_set_temp_alert_max(struct bq24190_dev_info *bdi, + const union power_supply_propval *val); + +static int bq24190_charger_set_online(struct bq24190_dev_info *bdi, + const union power_supply_propval *val) +{ + return bq24190_battery_set_online(bdi, val); +} + +static int bq24190_charger_get_status(struct bq24190_dev_info *bdi, + union power_supply_propval *val) +{ + return bq24190_battery_get_status(bdi, val); +} + +static int bq24190_charger_get_temp_alert_max(struct bq24190_dev_info *bdi, + union power_supply_propval *val) +{ + return bq24190_battery_get_temp_alert_max(bdi, val); +} + +static int bq24190_charger_set_temp_alert_max(struct bq24190_dev_info *bdi, + const union power_supply_propval *val) +{ + return bq24190_battery_set_temp_alert_max(bdi, val); +} + static int bq24190_charger_get_current(struct bq24190_dev_info *bdi, union power_supply_propval *val) { @@ -831,6 +887,12 @@ static int bq24190_charger_get_property(struct power_supply *psy, case POWER_SUPPLY_PROP_ONLINE: ret = bq24190_charger_get_online(bdi, val); break; + case POWER_SUPPLY_PROP_STATUS: + ret = bq24190_charger_get_status(bdi, val); + break; + case POWER_SUPPLY_PROP_TEMP_ALERT_MAX: + ret = bq24190_charger_get_temp_alert_max(bdi, val); + break; case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: ret = bq24190_charger_get_current(bdi, val); break; @@ -879,6 +941,12 @@ static int bq24190_charger_set_property(struct power_supply *psy, return ret; switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + ret = bq24190_charger_set_online(bdi, val); + break; + case POWER_SUPPLY_PROP_TEMP_ALERT_MAX: + ret = bq24190_charger_set_temp_alert_max(bdi, val); + break; case POWER_SUPPLY_PROP_CHARGE_TYPE: ret = bq24190_charger_set_charge_type(bdi, val); break; @@ -904,6 +972,8 @@ static int bq24190_charger_property_is_writeable(struct power_supply *psy, int ret; switch (psp) { + case POWER_SUPPLY_PROP_ONLINE: + case POWER_SUPPLY_PROP_TEMP_ALERT_MAX: case POWER_SUPPLY_PROP_CHARGE_TYPE: case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE: @@ -920,6 +990,8 @@ static enum power_supply_property bq24190_charger_properties[] = { POWER_SUPPLY_PROP_CHARGE_TYPE, POWER_SUPPLY_PROP_HEALTH, POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_TEMP_ALERT_MAX, POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT, POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX, POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE, @@ -1093,6 +1165,7 @@ static int bq24190_battery_get_property(struct power_supply *psy, struct bq24190_dev_info *bdi = power_supply_get_drvdata(psy); int ret; + dev_warn(bdi->dev, "warning: /sys/class/power_supply/bq24190-battery is deprecated\n"); dev_dbg(bdi->dev, "prop: %d\n", psp); ret = pm_runtime_get_sync(bdi->dev); @@ -1138,6 +1211,7 @@ static int bq24190_battery_set_property(struct power_supply *psy, struct bq24190_dev_info *bdi = power_supply_get_drvdata(psy); int ret; + dev_warn(bdi->dev, "warning: /sys/class/power_supply/bq24190-battery is deprecated\n"); dev_dbg(bdi->dev, "prop: %d\n", psp); ret = pm_runtime_get_sync(bdi->dev); @@ -1266,9 +1340,9 @@ static void bq24190_check_status(struct bq24190_dev_info *bdi) bdi->ss_reg = ss_reg; } - if (alert_charger) + if (alert_charger || alert_battery) power_supply_changed(bdi->charger); - if (alert_battery) + if (alert_battery && bdi->battery) power_supply_changed(bdi->battery); dev_dbg(bdi->dev, "ss_reg: 0x%02x, f_reg: 0x%02x\n", ss_reg, f_reg); @@ -1473,19 +1547,23 @@ static int bq24190_probe(struct i2c_client *client, goto out_pmrt; } - battery_cfg.drv_data = bdi; - bdi->battery = power_supply_register(dev, &bq24190_battery_desc, - &battery_cfg); - if (IS_ERR(bdi->battery)) { - dev_err(dev, "Can't register battery\n"); - ret = PTR_ERR(bdi->battery); - goto out_charger; + /* the battery class is deprecated and will be removed. */ + /* in the interim, this property hides it. */ + if (!device_property_read_bool(dev, "omit-battery-class")) { + battery_cfg.drv_data = bdi; + bdi->battery = power_supply_register(dev, &bq24190_battery_desc, + &battery_cfg); + if (IS_ERR(bdi->battery)) { + dev_err(dev, "Can't register battery\n"); + ret = PTR_ERR(bdi->battery); + goto out_charger; + } } ret = bq24190_sysfs_create_group(bdi); if (ret) { dev_err(dev, "Can't create sysfs entries\n"); - goto out_battery; + goto out_charger; } bdi->initialized = true; @@ -1523,10 +1601,9 @@ static int bq24190_probe(struct i2c_client *client, out_sysfs: bq24190_sysfs_remove_group(bdi); -out_battery: - power_supply_unregister(bdi->battery); - out_charger: + if (!IS_ERR_OR_NULL(bdi->battery)) + power_supply_unregister(bdi->battery); power_supply_unregister(bdi->charger); out_pmrt: @@ -1549,7 +1626,8 @@ static int bq24190_remove(struct i2c_client *client) bq24190_register_reset(bdi); bq24190_sysfs_remove_group(bdi); - power_supply_unregister(bdi->battery); + if (bdi->battery) + power_supply_unregister(bdi->battery); power_supply_unregister(bdi->charger); if (error >= 0) pm_runtime_put_sync(bdi->dev); @@ -1636,7 +1714,8 @@ static __maybe_unused int bq24190_pm_resume(struct device *dev) /* Things may have changed while suspended so alert upper layer */ power_supply_changed(bdi->charger); - power_supply_changed(bdi->battery); + if (bdi->battery) + power_supply_changed(bdi->battery); return 0; } |