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max17042_battery: Do not lose accuracy calculating current_now

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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>
This commit is contained in:
Philip Rakity 2011-08-12 21:19:57 -07:00 committed by Anton Vorontsov
parent 4cfa892c03
commit 91d8b0d6f8
1 changed files with 1 additions and 2 deletions
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3
drivers/power/max17042_battery.c
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@ -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;
}