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Subject[PATCH v3 6/9] power: supply: axp20x_usb_power: add support for AXP813
Date
From: Quentin Schulz <quentin.schulz@bootlin.com>

This adds support for AXP813 PMIC. It is almost the same as AXP22X but
has a different current limit.

Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
drivers/power/supply/axp20x_usb_power.c | 66 ++++++++++++++++++++++++-
1 file changed, 65 insertions(+), 1 deletion(-)

diff --git a/drivers/power/supply/axp20x_usb_power.c b/drivers/power/supply/axp20x_usb_power.c
index 90d06027bf98..d39c450b14c6 100644
--- a/drivers/power/supply/axp20x_usb_power.c
+++ b/drivers/power/supply/axp20x_usb_power.c
@@ -42,6 +42,11 @@
#define AXP20X_VBUS_CLIMIT_100mA 2
#define AXP20X_VBUS_CLIMIT_NONE 3

+#define AXP813_VBUS_CLIMIT_900mA 0
+#define AXP813_VBUS_CLIMIT_1500mA 1
+#define AXP813_VBUS_CLIMIT_2000mA 2
+#define AXP813_VBUS_CLIMIT_2500mA 3
+
#define AXP20X_ADC_EN1_VBUS_CURR BIT(2)
#define AXP20X_ADC_EN1_VBUS_VOLT BIT(3)

@@ -131,6 +136,31 @@ static int axp20x_get_current_max(struct axp20x_usb_power *power, int *val)
return 0;
}

+static int axp813_get_current_max(struct axp20x_usb_power *power, int *val)
+{
+ unsigned int v;
+ int ret = regmap_read(power->regmap, AXP20X_VBUS_IPSOUT_MGMT, &v);
+
+ if (ret)
+ return ret;
+
+ switch (v & AXP20X_VBUS_CLIMIT_MASK) {
+ case AXP813_VBUS_CLIMIT_900mA:
+ *val = 900000;
+ break;
+ case AXP813_VBUS_CLIMIT_1500mA:
+ *val = 1500000;
+ break;
+ case AXP813_VBUS_CLIMIT_2000mA:
+ *val = 2000000;
+ break;
+ case AXP813_VBUS_CLIMIT_2500mA:
+ *val = 2500000;
+ break;
+ }
+ return 0;
+}
+
static int axp20x_usb_power_get_property(struct power_supply *psy,
enum power_supply_property psp, union power_supply_propval *val)
{
@@ -169,6 +199,8 @@ static int axp20x_usb_power_get_property(struct power_supply *psy,
val->intval = ret * 1700; /* 1 step = 1.7 mV */
return 0;
case POWER_SUPPLY_PROP_CURRENT_MAX:
+ if (power->axp20x_id == AXP813_ID)
+ return axp813_get_current_max(power, &val->intval);
return axp20x_get_current_max(power, &val->intval);
case POWER_SUPPLY_PROP_CURRENT_NOW:
if (IS_ENABLED(CONFIG_AXP20X_ADC)) {
@@ -260,6 +292,31 @@ static int axp20x_usb_power_set_voltage_min(struct axp20x_usb_power *power,
return -EINVAL;
}

+static int axp813_usb_power_set_current_max(struct axp20x_usb_power *power,
+ int intval)
+{
+ int val;
+
+ switch (intval) {
+ case 900000:
+ return regmap_update_bits(power->regmap,
+ AXP20X_VBUS_IPSOUT_MGMT,
+ AXP20X_VBUS_CLIMIT_MASK,
+ AXP813_VBUS_CLIMIT_900mA);
+ case 1500000:
+ case 2000000:
+ case 2500000:
+ val = (intval - 1000000) / 500000;
+ return regmap_update_bits(power->regmap,
+ AXP20X_VBUS_IPSOUT_MGMT,
+ AXP20X_VBUS_CLIMIT_MASK, val);
+ default:
+ return -EINVAL;
+ }
+
+ return -EINVAL;
+}
+
static int axp20x_usb_power_set_current_max(struct axp20x_usb_power *power,
int intval)
{
@@ -299,6 +356,9 @@ static int axp20x_usb_power_set_property(struct power_supply *psy,
return axp20x_usb_power_set_voltage_min(power, val->intval);

case POWER_SUPPLY_PROP_CURRENT_MAX:
+ if (power->axp20x_id == AXP813_ID)
+ return axp813_usb_power_set_current_max(power,
+ val->intval);
return axp20x_usb_power_set_current_max(power, val->intval);

default:
@@ -434,7 +494,8 @@ static int axp20x_usb_power_probe(struct platform_device *pdev)
usb_power_desc = &axp20x_usb_power_desc;
irq_names = axp20x_irq_names;
} else if (power->axp20x_id == AXP221_ID ||
- power->axp20x_id == AXP223_ID) {
+ power->axp20x_id == AXP223_ID ||
+ power->axp20x_id == AXP813_ID) {
usb_power_desc = &axp22x_usb_power_desc;
irq_names = axp22x_irq_names;
} else {
@@ -493,6 +554,9 @@ static const struct of_device_id axp20x_usb_power_match[] = {
}, {
.compatible = "x-powers,axp223-usb-power-supply",
.data = (void *)AXP223_ID,
+ }, {
+ .compatible = "x-powers,axp813-usb-power-supply",
+ .data = (void *)AXP813_ID,
}, { /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, axp20x_usb_power_match);
--
2.20.1
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