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power: supply: sc27xx: Add boot voltage support

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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>
This commit is contained in:
Yuanjiang Yu 2020-04-20 11:42:07 +08:00 committed by Sebastian Reichel
parent e5431c3408
commit 7c1c5e38fd
1 changed files with 8 additions and 0 deletions
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8
drivers/power/supply/sc27xx_fuel_gauge.c
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@ -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,