The X-Powers AXP813 PMIC has got some slight differences from AXP20X/AXP22X PMICs: - the maximum voltage supplied by the PMIC is 4.35 instead of 4.36/4.24 for AXP20X/AXP22X, - the constant charge current formula is different,
It also has a bit to tell whether the battery percentage returned by the PMIC is valid. Signed-off-by: Quentin Schulz <[email protected]> --- drivers/power/supply/axp20x_battery.c | 44 +++++++++++++++++++++++++++- 1 file changed, 43 insertions(+), 1 deletion(-) diff --git a/drivers/power/supply/axp20x_battery.c b/drivers/power/supply/axp20x_battery.c index 7494f0f..cb30302 100644 --- a/drivers/power/supply/axp20x_battery.c +++ b/drivers/power/supply/axp20x_battery.c @@ -46,6 +46,8 @@ #define AXP20X_CHRG_CTRL1_TGT_4_2V (2 << 5) #define AXP20X_CHRG_CTRL1_TGT_4_36V (3 << 5) +#define AXP813_CHRG_CTRL1_TGT_4_35V (3 << 5) + #define AXP22X_CHRG_CTRL1_TGT_4_22V (1 << 5) #define AXP22X_CHRG_CTRL1_TGT_4_24V (3 << 5) @@ -123,10 +125,41 @@ static int axp22x_battery_get_max_voltage(struct axp20x_batt_ps *axp20x_batt, return 0; } +static int axp813_battery_get_max_voltage(struct axp20x_batt_ps *axp20x_batt, + int *val) +{ + int ret, reg; + + ret = regmap_read(axp20x_batt->regmap, AXP20X_CHRG_CTRL1, ®); + if (ret) + return ret; + + switch (reg & AXP20X_CHRG_CTRL1_TGT_VOLT) { + case AXP20X_CHRG_CTRL1_TGT_4_1V: + *val = 4100000; + break; + case AXP20X_CHRG_CTRL1_TGT_4_15V: + *val = 4150000; + break; + case AXP20X_CHRG_CTRL1_TGT_4_2V: + *val = 4200000; + break; + case AXP813_CHRG_CTRL1_TGT_4_35V: + *val = 4350000; + break; + default: + return -EINVAL; + } + + return 0; +} + static void raw_to_constant_charge_current(struct axp20x_batt_ps *axp, int *val) { if (axp->axp_id == AXP209_ID) *val = *val * 100000 + 300000; + else if (axp->axp_id == AXP813_ID) + *val = *val * 200000 + 200000; else *val = *val * 150000 + 300000; } @@ -135,6 +168,8 @@ static void constant_charge_current_to_raw(struct axp20x_batt_ps *axp, int *val) { if (axp->axp_id == AXP209_ID) *val = (*val - 300000) / 100000; + else if (axp->axp_id == AXP813_ID) + *val = (*val - 200000) / 200000; else *val = (*val - 300000) / 150000; } @@ -269,7 +304,8 @@ static int axp20x_battery_get_prop(struct power_supply *psy, if (ret) return ret; - if (axp20x_batt->axp_id == AXP221_ID && + if ((axp20x_batt->axp_id == AXP221_ID || + axp20x_batt->axp_id == AXP813_ID) && !(reg & AXP22X_FG_VALID)) return -EINVAL; @@ -284,6 +320,9 @@ static int axp20x_battery_get_prop(struct power_supply *psy, if (axp20x_batt->axp_id == AXP209_ID) return axp20x_battery_get_max_voltage(axp20x_batt, &val->intval); + else if (axp20x_batt->axp_id == AXP813_ID) + return axp813_battery_get_max_voltage(axp20x_batt, + &val->intval); return axp22x_battery_get_max_voltage(axp20x_batt, &val->intval); @@ -467,6 +506,9 @@ static const struct of_device_id axp20x_battery_ps_id[] = { }, { .compatible = "x-powers,axp221-battery-power-supply", .data = (void *)AXP221_ID, + }, { + .compatible = "x-powers,axp813-battery-power-supply", + .data = (void *)AXP813_ID, }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(of, axp20x_battery_ps_id); -- git-series 0.9.1
