Messages in this thread | | | Subject | Re: [PATCH] power: bq20z75: Fix time and temp units | From | Rhyland Klein <> | Date | Wed, 09 Mar 2011 11:00:39 -0800 |
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On Sun, 2011-02-27 at 17:41 -0800, Benson Leung wrote: > 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> > --- > 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 4141775..123e169 100644 > --- a/drivers/power/bq20z75.c > +++ b/drivers/power/bq20z75.c > @@ -269,12 +269,15 @@ 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; > > @@ -288,14 +291,17 @@ 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; >
LGTM
Acked-by: Rhyland Klein <rklein@nvidia.com>
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