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power: supply: sc27xx: Add CURRENT_NOW/VOLTAGE_NOW properties support

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Add new properties to get present current and voltage of the fuel gauge.

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 11:42:06 +08:00 committed by Sebastian Reichel
parent 8720b255f5
commit e5431c3408
1 changed files with 58 additions and 2 deletions
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60
drivers/power/supply/sc27xx_fuel_gauge.c
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@ -42,6 +42,8 @@
#define SC27XX_FGU_USER_AREA_SET 0xa0
#define SC27XX_FGU_USER_AREA_CLEAR 0xa4
#define SC27XX_FGU_USER_AREA_STATUS 0xa8
#define SC27XX_FGU_VOLTAGE_BUF 0xd0
#define SC27XX_FGU_CURRENT_BUF 0xf0
#define SC27XX_WRITE_SELCLB_EN BIT(0)
#define SC27XX_FGU_CLBCNT_MASK GENMASK(15, 0)
@ -376,6 +378,44 @@ static int sc27xx_fgu_get_clbcnt(struct sc27xx_fgu_data *data, int *clb_cnt)
return 0;
}
static int sc27xx_fgu_get_vol_now(struct sc27xx_fgu_data *data, int *val)
{
int ret;
u32 vol;
ret = regmap_read(data->regmap, data->base + SC27XX_FGU_VOLTAGE_BUF,
&vol);
if (ret)
return ret;
/*
* It is ADC values reading from registers which need to convert to
* corresponding voltage values.
*/
*val = sc27xx_fgu_adc_to_voltage(data, vol);
return 0;
}
static int sc27xx_fgu_get_cur_now(struct sc27xx_fgu_data *data, int *val)
{
int ret;
u32 cur;
ret = regmap_read(data->regmap, data->base + SC27XX_FGU_CURRENT_BUF,
&cur);
if (ret)
return ret;
/*
* It is ADC values reading from registers which need to convert to
* corresponding current values.
*/
*val = sc27xx_fgu_adc_to_current(data, cur - SC27XX_FGU_CUR_BASIC_ADC);
return 0;
}
static int sc27xx_fgu_get_capacity(struct sc27xx_fgu_data *data, int *cap)
{
int ret, cur_clbcnt, delta_clbcnt, delta_cap, temp;
@ -577,7 +617,7 @@ static int sc27xx_fgu_get_property(struct power_supply *psy,
val->intval = value;
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
case POWER_SUPPLY_PROP_VOLTAGE_AVG:
ret = sc27xx_fgu_get_vbat_vol(data, &value);
if (ret)
goto error;
@ -601,7 +641,6 @@ static int sc27xx_fgu_get_property(struct power_supply *psy,
val->intval = value;
break;
case POWER_SUPPLY_PROP_CURRENT_NOW:
case POWER_SUPPLY_PROP_CURRENT_AVG:
ret = sc27xx_fgu_get_current(data, &value);
if (ret)
@ -625,6 +664,22 @@ static int sc27xx_fgu_get_property(struct power_supply *psy,
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
ret = sc27xx_fgu_get_vol_now(data, &value);
if (ret)
goto error;
val->intval = value * 1000;
break;
case POWER_SUPPLY_PROP_CURRENT_NOW:
ret = sc27xx_fgu_get_cur_now(data, &value);
if (ret)
goto error;
val->intval = value * 1000;
break;
default:
ret = -EINVAL;
break;
@ -694,6 +749,7 @@ static enum power_supply_property sc27xx_fgu_props[] = {
POWER_SUPPLY_PROP_CAPACITY,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_VOLTAGE_OCV,
POWER_SUPPLY_PROP_VOLTAGE_AVG,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_CURRENT_AVG,
POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,