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Commit 6ff653e3 authored by Quentin Schulz's avatar Quentin Schulz Committed by Sebastian Reichel
Browse files

power: supply: axp20x_battery: add support for AXP813 



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: default avatarQuentin Schulz <quentin.schulz@bootlin.com>
Reviewed-by: default avatarChen-Yu Tsai <wens@csie.org>
Signed-off-by: default avatarSebastian Reichel <sebastian.reichel@collabora.co.uk>
parent 99cdb0a9

drivers/power/supply/axp20x_battery.c

+42 −0
Original line number Diff line number Diff line
@@ -49,6 +49,8 @@ 
#define AXP22X_CHRG_CTRL1_TGT_4_22V	(1 << 5)

#define AXP22X_CHRG_CTRL1_TGT_4_24V	(3 << 5)



#define AXP813_CHRG_CTRL1_TGT_4_35V	(3 << 5)



#define AXP20X_CHRG_CTRL1_TGT_CURR	GENMASK(3, 0)



#define AXP20X_V_OFF_MASK		GENMASK(2, 0)
@@ -133,6 +135,35 @@ 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, &reg);

	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 int axp20x_get_constant_charge_current(struct axp20x_batt_ps *axp,

					      int *val)

{
@@ -491,6 +522,14 @@ static const struct axp_data axp221_data = { 
	.set_max_voltage = axp22x_battery_set_max_voltage,

};



static const struct axp_data axp813_data = {

	.ccc_scale = 200000,

	.ccc_offset = 200000,

	.has_fg_valid = true,

	.get_max_voltage = axp813_battery_get_max_voltage,

	.set_max_voltage = axp20x_battery_set_max_voltage,

};



static const struct of_device_id axp20x_battery_ps_id[] = {

	{

		.compatible = "x-powers,axp209-battery-power-supply",
@@ -498,6 +537,9 @@ static const struct of_device_id axp20x_battery_ps_id[] = { 
	}, {

		.compatible = "x-powers,axp221-battery-power-supply",

		.data = (void *)&axp221_data,

	}, {

		.compatible = "x-powers,axp813-battery-power-supply",

		.data = (void *)&axp813_data,

	}, { /* sentinel */ },

};

MODULE_DEVICE_TABLE(of, axp20x_battery_ps_id);