AXP813 and AXP803 PMICs can control input current and
minimum voltage.

Both of these values are configurable.

Signed-off-by: Oskari Lemmela <redacted>
---
 drivers/power/supply/axp20x_ac_power.c | 92 ++++++++++++++++++++++++++
 1 file changed, 92 insertions(+)

diff --git a/drivers/power/supply/axp20x_ac_power.c b/drivers/power/supply/axp20x_ac_power.c
index 0771f951b11f..92a92354f6f0 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 +112,55 @@ 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, &reg);
+		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, &reg);
+		if (ret)
+			return ret;
+
+		val->intval = AXP813_CURR_LIMIT_REG_TO_UA(reg);
+
+		return 0;
+
+	default:
+		return -EINVAL;
+	}
+
+	return -EINVAL;
+}
+
+static int axp20x_ac_power_set_property(struct power_supply *psy,
+					enum power_supply_property psp,
+					const union power_supply_propval *val)
+{