diff options
| author | Philip Rakity <prakity@marvell.com> | 2011-08-13 06:19:57 +0200 |
|---|---|---|
| committer | Anton Vorontsov <cbouatmailru@gmail.com> | 2011-08-19 19:03:34 +0200 |
| commit | 91d8b0d6f81d2946962ee559090a34834dfd467b (patch) | |
| tree | 3cbfca6e1eca3b857976116c4c96f54e2e62a6a5 /drivers | |
| parent | max17042_battery: Divide by 0 crash because r_sns init too late (diff) | |
| download | linux-91d8b0d6f81d2946962ee559090a34834dfd467b.tar.xz linux-91d8b0d6f81d2946962ee559090a34834dfd467b.zip | |
max17042_battery: Do not lose accuracy calculating current_now
PROP_CURRENT_NOW value is first divided then multiplied up
causing a lose of accuracy. Use the same method as
PROP_CURRENT_AVG to do the calculation.
Signed-off-by: Philip Rakity <prakity@marvell.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/power/max17042_battery.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/power/max17042_battery.c b/drivers/power/max17042_battery.c index 462845025ca1..61fb6d7dfe7a 100644 --- a/drivers/power/max17042_battery.c +++ b/drivers/power/max17042_battery.c @@ -152,8 +152,7 @@ static int max17042_get_property(struct power_supply *psy, val->intval++; val->intval *= -1; } - val->intval >>= 4; - val->intval *= 1000000 * 25 / chip->pdata->r_sns; + val->intval *= 1562500 / chip->pdata->r_sns; } else { return -EINVAL; } |