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| author | Benson Leung <bleung@chromium.org> | 2011-02-27 17:41:48 -0800 |
|---|---|---|
| committer | Anton Vorontsov <cbouatmailru@gmail.com> | 2011-03-16 16:41:06 +0300 |
| commit | 909a78b320b31ca9709d7ea5f602ec1bd2015192 (patch) | |
| tree | e9a834db60278573fd24eedafe53c476e8040815 /drivers/power | |
| parent | a7d9ace4eb3a6a3c3fcb12fb05510c1893808263 (diff) | |
| download | lwn-909a78b320b31ca9709d7ea5f602ec1bd2015192.tar.gz lwn-909a78b320b31ca9709d7ea5f602ec1bd2015192.zip | |
bq20z75: Fix time and temp units
Corrected temperature and time to empty/full conversions.
Temperature is in 0.1°C, time is in seconds.
Corrected units in comment. "Convert to µWh."
Signed-off-by: Benson Leung <bleung@chromium.org>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/bq20z75.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/power/bq20z75.c b/drivers/power/bq20z75.c index 5615c92bef66..506585e31a5b 100644 --- a/drivers/power/bq20z75.c +++ b/drivers/power/bq20z75.c @@ -318,12 +318,15 @@ static void bq20z75_unit_adjustment(struct i2c_client *client, { #define BASE_UNIT_CONVERSION 1000 #define BATTERY_MODE_CAP_MULT_WATT (10 * BASE_UNIT_CONVERSION) -#define TIME_UNIT_CONVERSION 600 -#define TEMP_KELVIN_TO_CELCIUS 2731 +#define TIME_UNIT_CONVERSION 60 +#define TEMP_KELVIN_TO_CELSIUS 2731 switch (psp) { case POWER_SUPPLY_PROP_ENERGY_NOW: case POWER_SUPPLY_PROP_ENERGY_FULL: case POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN: + /* bq20z75 provides energy in units of 10mWh. + * Convert to µWh + */ val->intval *= BATTERY_MODE_CAP_MULT_WATT; break; @@ -337,14 +340,17 @@ static void bq20z75_unit_adjustment(struct i2c_client *client, break; case POWER_SUPPLY_PROP_TEMP: - /* bq20z75 provides battery tempreture in 0.1°K - * so convert it to 0.1°C */ - val->intval -= TEMP_KELVIN_TO_CELCIUS; - val->intval *= 10; + /* bq20z75 provides battery temperature in 0.1K + * so convert it to 0.1°C + */ + val->intval -= TEMP_KELVIN_TO_CELSIUS; break; case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG: case POWER_SUPPLY_PROP_TIME_TO_FULL_AVG: + /* bq20z75 provides time to empty and time to full in minutes. + * Convert to seconds + */ val->intval *= TIME_UNIT_CONVERSION; break; |