Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-19 02:21:47 +00:00
Code Issues Packages Projects Releases Wiki Activity

power: supply: axp20x_usb_power: add support for AXP813

Browse Source 
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>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Quentin Schulz 2019-04-16 14:40:22 +08:00 committed by Sebastian Reichel
parent af7e8d0769
commit c279adafe6
1 changed files with 65 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

66
drivers/power/supply/axp20x_usb_power.c
View File

@ -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)
{
@ -294,6 +351,9 @@ 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:
@ -429,7 +489,8 @@ 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 {
@ -488,6 +549,9 @@ 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);