diff options
| author | Yuanjiang Yu <yuanjiang.yu@unisoc.com> | 2020-04-20 11:42:07 +0800 |
|---|---|---|
| committer | Sebastian Reichel <sebastian.reichel@collabora.com> | 2020-04-28 21:24:06 +0200 |
| commit | 7c1c5e38fd31e89391211c0b3e5000666c7d6126 (patch) | |
| tree | 9aa265256d294ed944326a07b984e8b3dde8b097 /drivers/power/supply/sc27xx_fuel_gauge.c | |
| parent | e5431c340852ad14c54f449451f884b161aae31f (diff) | |
| download | linux-7c1c5e38fd31e89391211c0b3e5000666c7d6126.tar.bz2 | |
power: supply: sc27xx: Add boot voltage support
Add new property to allow to get the voltage measured during boot time.
Signed-off-by: Yuanjiang Yu <yuanjiang.yu@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang7@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Diffstat (limited to 'drivers/power/supply/sc27xx_fuel_gauge.c')
| -rw-r--r-- | drivers/power/supply/sc27xx_fuel_gauge.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/power/supply/sc27xx_fuel_gauge.c b/drivers/power/supply/sc27xx_fuel_gauge.c index 82d0c64ef269..be42e814ea34 100644 --- a/drivers/power/supply/sc27xx_fuel_gauge.c +++ b/drivers/power/supply/sc27xx_fuel_gauge.c @@ -84,6 +84,7 @@ * @init_clbcnt: the initial coulomb counter * @max_volt: the maximum constant input voltage in millivolt * @min_volt: the minimum drained battery voltage in microvolt + * @boot_volt: the voltage measured during boot in microvolt * @table_len: the capacity table length * @resist_table_len: the resistance table length * @cur_1000ma_adc: ADC value corresponding to 1000 mA @@ -109,6 +110,7 @@ struct sc27xx_fgu_data { int init_clbcnt; int max_volt; int min_volt; + int boot_volt; int table_len; int resist_table_len; int cur_1000ma_adc; @@ -321,6 +323,7 @@ static int sc27xx_fgu_get_boot_capacity(struct sc27xx_fgu_data *data, int *cap) volt = sc27xx_fgu_adc_to_voltage(data, volt); ocv = volt * 1000 - oci * data->internal_resist; + data->boot_volt = ocv; /* * Parse the capacity table to look up the correct capacity percent @@ -680,6 +683,10 @@ static int sc27xx_fgu_get_property(struct power_supply *psy, val->intval = value * 1000; break; + case POWER_SUPPLY_PROP_VOLTAGE_BOOT: + val->intval = data->boot_volt; + break; + default: ret = -EINVAL; break; @@ -750,6 +757,7 @@ static enum power_supply_property sc27xx_fgu_props[] = { POWER_SUPPLY_PROP_VOLTAGE_NOW, POWER_SUPPLY_PROP_VOLTAGE_OCV, POWER_SUPPLY_PROP_VOLTAGE_AVG, + POWER_SUPPLY_PROP_VOLTAGE_BOOT, POWER_SUPPLY_PROP_CURRENT_NOW, POWER_SUPPLY_PROP_CURRENT_AVG, POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE, |