[RFT PATCH 5/9] power: supply: axp20x_usb_power: add function to get max current
From: Chen-Yu Tsai <hidden>
Date: 2019-02-07 06:46:15
Also in:
linux-devicetree, linux-pm, lkml
Subsystem:
power supply class/subsystem and drivers, the rest · Maintainers:
Sebastian Reichel, Linus Torvalds
From: Quentin Schulz <redacted> To prepare for a new PMIC, factor out the code responsible of returning the maximum current to axp20x_get_current_max. Signed-off-by: Quentin Schulz <redacted> Signed-off-by: Chen-Yu Tsai <redacted> --- drivers/power/supply/axp20x_usb_power.c | 52 ++++++++++++++----------- 1 file changed, 30 insertions(+), 22 deletions(-)
diff --git a/drivers/power/supply/axp20x_usb_power.c b/drivers/power/supply/axp20x_usb_power.c
index ac061bcdc056..90d06027bf98 100644
--- a/drivers/power/supply/axp20x_usb_power.c
+++ b/drivers/power/supply/axp20x_usb_power.c@@ -102,6 +102,35 @@ static bool axp20x_usb_vbus_needs_polling(struct axp20x_usb_power *power) return false; } +static int axp20x_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 AXP20X_VBUS_CLIMIT_100mA: + if (power->axp20x_id == AXP221_ID) + *val = -1; /* No 100mA limit */ + else + *val = 100000; + break; + case AXP20X_VBUS_CLIMIT_500mA: + *val = 500000; + break; + case AXP20X_VBUS_CLIMIT_900mA: + *val = 900000; + break; + case AXP20X_VBUS_CLIMIT_NONE: + *val = -1; + break; + } + + return 0; +} + static int axp20x_usb_power_get_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) {
@@ -140,28 +169,7 @@ 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: - ret = regmap_read(power->regmap, AXP20X_VBUS_IPSOUT_MGMT, &v); - if (ret) - return ret; - - switch (v & AXP20X_VBUS_CLIMIT_MASK) { - case AXP20X_VBUS_CLIMIT_100mA: - if (power->axp20x_id == AXP221_ID) - val->intval = -1; /* No 100mA limit */ - else - val->intval = 100000; - break; - case AXP20X_VBUS_CLIMIT_500mA: - val->intval = 500000; - break; - case AXP20X_VBUS_CLIMIT_900mA: - val->intval = 900000; - break; - case AXP20X_VBUS_CLIMIT_NONE: - val->intval = -1; - break; - } - return 0; + return axp20x_get_current_max(power, &val->intval); case POWER_SUPPLY_PROP_CURRENT_NOW: if (IS_ENABLED(CONFIG_AXP20X_ADC)) { ret = iio_read_channel_processed(power->vbus_i,
--
2.20.1
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