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path: root/drivers/power/supply/max1720x_battery.c
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Diffstat (limited to 'drivers/power/supply/max1720x_battery.c')
-rw-r--r--drivers/power/supply/max1720x_battery.c13
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/power/supply/max1720x_battery.c b/drivers/power/supply/max1720x_battery.c
index ea3912fd1de8..e2bd54ee3970 100644
--- a/drivers/power/supply/max1720x_battery.c
+++ b/drivers/power/supply/max1720x_battery.c
@@ -288,9 +288,10 @@ static int max172xx_voltage_to_ps(unsigned int reg)
return reg * 1250; /* in uV */
}
-static int max172xx_capacity_to_ps(unsigned int reg)
+static int max172xx_capacity_to_ps(unsigned int reg,
+ struct max1720x_device_info *info)
{
- return reg * 500; /* in uAh */
+ return reg * (500000 / info->rsense); /* in uAh */
}
/*
@@ -394,11 +395,11 @@ static int max1720x_battery_get_property(struct power_supply *psy,
break;
case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
ret = regmap_read(info->regmap, MAX172XX_DESIGN_CAP, &reg_val);
- val->intval = max172xx_capacity_to_ps(reg_val);
+ val->intval = max172xx_capacity_to_ps(reg_val, info);
break;
case POWER_SUPPLY_PROP_CHARGE_AVG:
ret = regmap_read(info->regmap, MAX172XX_REPCAP, &reg_val);
- val->intval = max172xx_capacity_to_ps(reg_val);
+ val->intval = max172xx_capacity_to_ps(reg_val, info);
break;
case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:
ret = regmap_read(info->regmap, MAX172XX_TTE, &reg_val);
@@ -422,10 +423,12 @@ static int max1720x_battery_get_property(struct power_supply *psy,
break;
case POWER_SUPPLY_PROP_CHARGE_FULL:
ret = regmap_read(info->regmap, MAX172XX_FULL_CAP, &reg_val);
- val->intval = max172xx_capacity_to_ps(reg_val);
+ val->intval = max172xx_capacity_to_ps(reg_val, info);
break;
case POWER_SUPPLY_PROP_MODEL_NAME:
ret = regmap_read(info->regmap, MAX172XX_DEV_NAME, &reg_val);
+ if (ret)
+ return ret;
reg_val = FIELD_GET(MAX172XX_DEV_NAME_TYPE_MASK, reg_val);
if (reg_val == MAX172XX_DEV_NAME_TYPE_MAX17201)
val->strval = max17201_model;