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| author | Sven Neumann <s.neumann@raumfeld.com> | 2010-11-12 11:36:22 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-02-17 15:14:26 -0800 |
| commit | 39ed1e1ac83399b318f6b026d83fd01342422f23 (patch) | |
| tree | 52e8820e15433ab1371a694bb174e95a5f2fa8fa | |
| parent | fcd8c1ff604201722610d43c01a1cf035e2ea273 (diff) | |
| download | linux-hpc-39ed1e1ac83399b318f6b026d83fd01342422f23.tar.gz | |
ds2760_battery: Fix calculation of time_to_empty_now
commit 86af95039b69a90db15294eb1f9c147f1df0a8ea upstream.
A check against division by zero was modified in commit b0525b48.
Since this change time_to_empty_now is always reported as zero
while the battery is discharging and as a negative value while
the battery is charging. This is because current is negative while
the battery is discharging.
Fix the check introduced by commit b0525b48 so that time_to_empty_now
is reported correctly during discharge and as zero while charging.
Signed-off-by: Sven Neumann <s.neumann@raumfeld.com>
Acked-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/power/ds2760_battery.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/power/ds2760_battery.c b/drivers/power/ds2760_battery.c index b3c01c16a16407..11e1ac508e5790 100644 --- a/drivers/power/ds2760_battery.c +++ b/drivers/power/ds2760_battery.c @@ -212,7 +212,7 @@ static int ds2760_battery_read_status(struct ds2760_device_info *di) if (di->rem_capacity > 100) di->rem_capacity = 100; - if (di->current_uA >= 100L) + if (di->current_uA < -100L) di->life_sec = -((di->accum_current_uAh - di->empty_uAh) * 36L) / (di->current_uA / 100L); else |