From 423cf085ad74880efb0abede0f3f6962fe7336d7 Mon Sep 17 00:00:00 2001 From: Samuel Holland Date: Sat, 29 Feb 2020 01:04:33 -0600 Subject: [PATCH 229/464] power: supply: axp20x_battery: Monitor battery health Signed-off-by: Samuel Holland --- drivers/power/supply/axp20x_battery.c | 58 ++++++++++++++++++++++++++- 1 file changed, 56 insertions(+), 2 deletions(-) diff --git a/drivers/power/supply/axp20x_battery.c b/drivers/power/supply/axp20x_battery.c index 3331910f46a6..bdc7e578216c 100644 --- a/drivers/power/supply/axp20x_battery.c +++ b/drivers/power/supply/axp20x_battery.c @@ -82,6 +82,7 @@ struct axp20x_batt_ps { struct iio_channel *batt_chrg_i; struct iio_channel *batt_dischrg_i; struct iio_channel *batt_v; + int health; /* Maximum constant charge current */ unsigned int max_ccc; const struct axp_data *data; @@ -273,7 +274,7 @@ static int axp20x_battery_get_prop(struct power_supply *psy, return 0; } - val->intval = POWER_SUPPLY_HEALTH_GOOD; + val->intval = axp20x_batt->health; break; case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT: @@ -565,6 +566,39 @@ static irqreturn_t axp20x_battery_changed_irq(int irq, void *devid) return IRQ_HANDLED; } +static irqreturn_t axp20x_battery_temp_cold_irq(int irq, void *devid) +{ + struct axp20x_batt_ps *axp20x_batt = devid; + + axp20x_batt->health = POWER_SUPPLY_HEALTH_COLD; + + power_supply_changed(axp20x_batt->batt); + + return IRQ_HANDLED; +} + +static irqreturn_t axp20x_battery_temp_hot_irq(int irq, void *devid) +{ + struct axp20x_batt_ps *axp20x_batt = devid; + + axp20x_batt->health = POWER_SUPPLY_HEALTH_OVERHEAT; + + power_supply_changed(axp20x_batt->batt); + + return IRQ_HANDLED; +} + +static irqreturn_t axp20x_battery_temp_normal_irq(int irq, void *devid) +{ + struct axp20x_batt_ps *axp20x_batt = devid; + + axp20x_batt->health = POWER_SUPPLY_HEALTH_GOOD; + + power_supply_changed(axp20x_batt->batt); + + return IRQ_HANDLED; +} + static const struct axp_irq_data axp20x_irqs[] = { { "BATT_PLUGIN", axp20x_battery_changed_irq }, { "BATT_REMOVAL", axp20x_battery_changed_irq }, @@ -575,6 +609,24 @@ static const struct axp_irq_data axp20x_irqs[] = { {} }; +static const struct axp_irq_data axp813_irqs[] = { + { "BATT_PLUGIN", axp20x_battery_changed_irq }, + { "BATT_REMOVAL", axp20x_battery_changed_irq }, + { "BATT_HEALTH_DEAD", axp20x_battery_changed_irq }, + { "BATT_HEALTH_GOOD", axp20x_battery_changed_irq }, + { "BATT_CHARGING", axp20x_battery_changed_irq }, + { "BATT_CHARGING_DONE", axp20x_battery_changed_irq }, + { "BATT_CHG_TEMP_HIGH", axp20x_battery_temp_hot_irq }, + { "BATT_CHG_TEMP_HIGH_END", axp20x_battery_temp_normal_irq }, + { "BATT_CHG_TEMP_LOW", axp20x_battery_temp_cold_irq }, + { "BATT_CHG_TEMP_LOW_END", axp20x_battery_temp_normal_irq }, + { "BATT_ACT_TEMP_HIGH", axp20x_battery_temp_hot_irq }, + { "BATT_ACT_TEMP_HIGH_END", axp20x_battery_temp_normal_irq }, + { "BATT_ACT_TEMP_LOW", axp20x_battery_temp_cold_irq }, + { "BATT_ACT_TEMP_LOW_END", axp20x_battery_temp_normal_irq }, + {} +}; + static const struct axp_data axp209_data = { .ccc_scale = 100000, .ccc_offset = 300000, @@ -598,7 +650,7 @@ static const struct axp_data axp813_data = { .has_fg_valid = true, .get_max_voltage = axp813_battery_get_max_voltage, .set_max_voltage = axp20x_battery_set_max_voltage, - .irqs = axp20x_irqs, + .irqs = axp813_irqs, }; static const struct of_device_id axp20x_battery_ps_id[] = { @@ -675,6 +727,8 @@ static int axp20x_power_probe(struct platform_device *pdev) return PTR_ERR(axp20x_batt->batt); } + axp20x_batt->health = POWER_SUPPLY_HEALTH_GOOD; + if (!power_supply_get_battery_info(axp20x_batt->batt, &info)) { int vmin = info->voltage_min_design_uv; int ccc = info->constant_charge_current_max_ua; -- 2.34.1