diff options
Diffstat (limited to 'drivers')
| -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 1d768928e0bb..a52d4a11652d 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) | |||
| 180 | di->empty_uAh = battery_interpolate(scale, di->temp_C / 10); | 180 | di->empty_uAh = battery_interpolate(scale, di->temp_C / 10); |
| 181 | di->empty_uAh *= 1000; /* convert to µAh */ | 181 | di->empty_uAh *= 1000; /* convert to µAh */ |
| 182 | 182 | ||
| 183 | /* From Maxim Application Note 131: remaining capacity = | 183 | if (di->full_active_uAh == di->empty_uAh) |
| 184 | * ((ICA - Empty Value) / (Full Value - Empty Value)) x 100% */ | 184 | di->rem_capacity = 0; |
| 185 | di->rem_capacity = ((di->accum_current_uAh - di->empty_uAh) * 100L) / | 185 | else |
| 186 | (di->full_active_uAh - di->empty_uAh); | 186 | /* From Maxim Application Note 131: remaining capacity = |
| 187 | * ((ICA - Empty Value) / (Full Value - Empty Value)) x 100% */ | ||
| 188 | di->rem_capacity = ((di->accum_current_uAh - di->empty_uAh) * 100L) / | ||
| 189 | (di->full_active_uAh - di->empty_uAh); | ||
| 187 | 190 | ||
| 188 | if (di->rem_capacity < 0) | 191 | if (di->rem_capacity < 0) |
| 189 | di->rem_capacity = 0; | 192 | di->rem_capacity = 0; |