Messages in this thread Patch in this message | | | From | Sven Neumann <> | Subject | [PATCH] ds2760_battery: fix calculation of time_to_empty_now | Date | Fri, 12 Nov 2010 11:36:22 +0100 |
| |
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> --- 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 4d3b272..c8d26df 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 -- 1.7.1
| |