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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2009-03-25 18:31:35 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-03-25 18:31:35 +0000 |
| commit | 8937b7349ca9e25a02b2a72ccb7fba404ddedc5b (patch) | |
| tree | 434ffe23d318f8af55850a26c3431ce8b82ab6f4 /drivers/power/ds2760_battery.c | |
| parent | 997302259f386bca8fe1db67c50296ca426c438f (diff) | |
| parent | ffe7f95bb1a4d1e9ca5d252445dc38476e1a208e (diff) | |
| download | kernel_samsung_smdk4412-8937b7349ca9e25a02b2a72ccb7fba404ddedc5b.zip kernel_samsung_smdk4412-8937b7349ca9e25a02b2a72ccb7fba404ddedc5b.tar.gz kernel_samsung_smdk4412-8937b7349ca9e25a02b2a72ccb7fba404ddedc5b.tar.bz2 | |
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 into devel
Diffstat (limited to 'drivers/power/ds2760_battery.c')
| -rw-r--r-- | drivers/power/ds2760_battery.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/power/ds2760_battery.c b/drivers/power/ds2760_battery.c index 1d76892..a52d4a1 100644 --- a/drivers/power/ds2760_battery.c +++ b/drivers/power/ds2760_battery.c @@ -180,10 +180,13 @@ static int ds2760_battery_read_status(struct ds2760_device_info *di) di->empty_uAh = battery_interpolate(scale, di->temp_C / 10); di->empty_uAh *= 1000; /* convert to µAh */ - /* From Maxim Application Note 131: remaining capacity = - * ((ICA - Empty Value) / (Full Value - Empty Value)) x 100% */ - di->rem_capacity = ((di->accum_current_uAh - di->empty_uAh) * 100L) / - (di->full_active_uAh - di->empty_uAh); + if (di->full_active_uAh == di->empty_uAh) + di->rem_capacity = 0; + else + /* From Maxim Application Note 131: remaining capacity = + * ((ICA - Empty Value) / (Full Value - Empty Value)) x 100% */ + di->rem_capacity = ((di->accum_current_uAh - di->empty_uAh) * 100L) / + (di->full_active_uAh - di->empty_uAh); if (di->rem_capacity < 0) di->rem_capacity = 0; |