diff options
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/supply/axp20x_ac_power.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/drivers/power/supply/axp20x_ac_power.c b/drivers/power/supply/axp20x_ac_power.c index 0771f951b11f..59b4c8d3b961 100644 --- a/drivers/power/supply/axp20x_ac_power.c +++ b/drivers/power/supply/axp20x_ac_power.c @@ -27,6 +27,16 @@ #define AXP20X_PWR_STATUS_ACIN_PRESENT BIT(7) #define AXP20X_PWR_STATUS_ACIN_AVAIL BIT(6) +#define AXP813_VHOLD_MASK GENMASK(5, 3) +#define AXP813_VHOLD_UV_TO_BIT(x) ((((x) / 100000) - 40) << 3) +#define AXP813_VHOLD_REG_TO_UV(x) \ + (((((x) & AXP813_VHOLD_MASK) >> 3) + 40) * 100000) + +#define AXP813_CURR_LIMIT_MASK GENMASK(2, 0) +#define AXP813_CURR_LIMIT_UA_TO_BIT(x) (((x) / 500000) - 3) +#define AXP813_CURR_LIMIT_REG_TO_UA(x) \ + ((((x) & AXP813_CURR_LIMIT_MASK) + 3) * 500000) + #define DRVNAME "axp20x-ac-power-supply" struct axp20x_ac_power { @@ -102,6 +112,57 @@ static int axp20x_ac_power_get_property(struct power_supply *psy, return 0; + case POWER_SUPPLY_PROP_VOLTAGE_MIN: + ret = regmap_read(power->regmap, AXP813_ACIN_PATH_CTRL, ®); + if (ret) + return ret; + + val->intval = AXP813_VHOLD_REG_TO_UV(reg); + + return 0; + + case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: + ret = regmap_read(power->regmap, AXP813_ACIN_PATH_CTRL, ®); + if (ret) + return ret; + + val->intval = AXP813_CURR_LIMIT_REG_TO_UA(reg); + /* AXP813 datasheet defines values 11x as 4000mA */ + if (val->intval > 4000000) + val->intval = 4000000; + + return 0; + + default: + return -EINVAL; + } + + return -EINVAL; +} + +static int axp813_ac_power_set_property(struct power_supply *psy, + enum power_supply_property psp, + const union power_supply_propval *val) +{ + struct axp20x_ac_power *power = power_supply_get_drvdata(psy); + + switch (psp) { + case POWER_SUPPLY_PROP_VOLTAGE_MIN: + if (val->intval < 4000000 || val->intval > 4700000) + return -EINVAL; + + return regmap_update_bits(power->regmap, AXP813_ACIN_PATH_CTRL, + AXP813_VHOLD_MASK, + AXP813_VHOLD_UV_TO_BIT(val->intval)); + + case POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT: + if (val->intval < 1500000 || val->intval > 4000000) + return -EINVAL; + + return regmap_update_bits(power->regmap, AXP813_ACIN_PATH_CTRL, + AXP813_CURR_LIMIT_MASK, + AXP813_CURR_LIMIT_UA_TO_BIT(val->intval)); + default: return -EINVAL; } @@ -109,6 +170,13 @@ static int axp20x_ac_power_get_property(struct power_supply *psy, return -EINVAL; } +static int axp813_ac_power_prop_writeable(struct power_supply *psy, + enum power_supply_property psp) +{ + return psp == POWER_SUPPLY_PROP_VOLTAGE_MIN || + psp == POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT; +} + static enum power_supply_property axp20x_ac_power_properties[] = { POWER_SUPPLY_PROP_HEALTH, POWER_SUPPLY_PROP_PRESENT, @@ -123,6 +191,14 @@ static enum power_supply_property axp22x_ac_power_properties[] = { POWER_SUPPLY_PROP_ONLINE, }; +static enum power_supply_property axp813_ac_power_properties[] = { + POWER_SUPPLY_PROP_HEALTH, + POWER_SUPPLY_PROP_PRESENT, + POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_VOLTAGE_MIN, + POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT, +}; + static const struct power_supply_desc axp20x_ac_power_desc = { .name = "axp20x-ac", .type = POWER_SUPPLY_TYPE_MAINS, @@ -139,6 +215,16 @@ static const struct power_supply_desc axp22x_ac_power_desc = { .get_property = axp20x_ac_power_get_property, }; +static const struct power_supply_desc axp813_ac_power_desc = { + .name = "axp813-ac", + .type = POWER_SUPPLY_TYPE_MAINS, + .properties = axp813_ac_power_properties, + .num_properties = ARRAY_SIZE(axp813_ac_power_properties), + .property_is_writeable = axp813_ac_power_prop_writeable, + .get_property = axp20x_ac_power_get_property, + .set_property = axp813_ac_power_set_property, +}; + struct axp_data { const struct power_supply_desc *power_desc; bool acin_adc; @@ -154,6 +240,11 @@ static const struct axp_data axp22x_data = { .acin_adc = false, }; +static const struct axp_data axp813_data = { + .power_desc = &axp813_ac_power_desc, + .acin_adc = false, +}; + static int axp20x_ac_power_probe(struct platform_device *pdev) { struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent); @@ -234,6 +325,9 @@ static const struct of_device_id axp20x_ac_power_match[] = { }, { .compatible = "x-powers,axp221-ac-power-supply", .data = &axp22x_data, + }, { + .compatible = "x-powers,axp813-ac-power-supply", + .data = &axp813_data, }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, axp20x_ac_power_match); |