From d7d15fc67791c0e255f36345d02441c1716c2a1f Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Fri, 14 Apr 2017 20:32:55 +0200 Subject: power: supply: max17042_battery: mAh readings depend on r_sns value The PROP_CHARGE_FULL code was hardcoded for the default sense resistor of 0.010 Ohm, make it use r_sns which contains the actual sense resistor value in micro-Ohms instead. Signed-off-by: Hans de Goede Reviewed-by: Krzysztof Kozlowski Signed-off-by: Sebastian Reichel --- drivers/power/supply/max17042_battery.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers/power') diff --git a/drivers/power/supply/max17042_battery.c b/drivers/power/supply/max17042_battery.c index 0e94349b3855..37e987f55833 100644 --- a/drivers/power/supply/max17042_battery.c +++ b/drivers/power/supply/max17042_battery.c @@ -220,6 +220,7 @@ static int max17042_get_property(struct power_supply *psy, struct regmap *map = chip->regmap; int ret; u32 data; + u64 data64; if (!chip->init_complete) return -EAGAIN; @@ -309,7 +310,9 @@ static int max17042_get_property(struct power_supply *psy, if (ret < 0) return ret; - val->intval = data * 1000 / 2; + data64 = data * 5000000ll; + do_div(data64, chip->pdata->r_sns); + val->intval = data64; break; case POWER_SUPPLY_PROP_CHARGE_COUNTER: ret = regmap_read(map, MAX17042_QH, &data); -- cgit v1.2.1