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ab8500_btemp: Allign battery temperature resolution with the framework 

The Linux Power Supply framework expects battery temperatures to have
a resolution of 0.1 degree Celsius; however, the AB8500 btemp driver
supplies a battery temperature resolution of 1 degree Celsius. We
therefore have to use a factor 10 on the measured values.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
This commit is contained in:
Lee Jones 2013-01-11 13:12:56 +00:00 committed by Anton Vorontsov
parent 129d583b44
commit 5b41aa9f2b
1 changed files with 6 additions and 6 deletions
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12
drivers/power/ab8500_btemp.c
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@ -746,22 +746,22 @@ static int ab8500_btemp_get_temp(struct ab8500_btemp *di)
} else { } else {
if (di->events.btemp_low) { if (di->events.btemp_low) {
if (temp > di->btemp_ranges.btemp_low_limit) if (temp > di->btemp_ranges.btemp_low_limit)
temp = di->btemp_ranges.btemp_low_limit; temp = di->btemp_ranges.btemp_low_limit * 10;
else else
temp = di->bat_temp * 10; temp = di->bat_temp * 10;
} else if (di->events.btemp_high) { } else if (di->events.btemp_high) {
if (temp < di->btemp_ranges.btemp_high_limit) if (temp < di->btemp_ranges.btemp_high_limit)
temp = di->btemp_ranges.btemp_high_limit; temp = di->btemp_ranges.btemp_high_limit * 10;
else else
temp = di->bat_temp * 10; temp = di->bat_temp * 10;
} else if (di->events.btemp_lowmed) { } else if (di->events.btemp_lowmed) {
if (temp > di->btemp_ranges.btemp_med_limit) if (temp > di->btemp_ranges.btemp_med_limit)
temp = di->btemp_ranges.btemp_med_limit; temp = di->btemp_ranges.btemp_med_limit * 10;
else else
temp = di->bat_temp * 10; temp = di->bat_temp * 10;
} else if (di->events.btemp_medhigh) { } else if (di->events.btemp_medhigh) {
if (temp < di->btemp_ranges.btemp_med_limit) if (temp < di->btemp_ranges.btemp_med_limit)
temp = di->btemp_ranges.btemp_med_limit; temp = di->btemp_ranges.btemp_med_limit * 10;
else else
temp = di->bat_temp * 10; temp = di->bat_temp * 10;
} else } else
@ -1030,8 +1030,8 @@ static int ab8500_btemp_probe(struct platform_device *pdev)
ab8500_btemp_periodic_work); ab8500_btemp_periodic_work);
/* Set BTEMP thermal limits. Low and Med are fixed */ /* Set BTEMP thermal limits. Low and Med are fixed */
di->btemp_ranges.btemp_low_limit = BTEMP_THERMAL_LOW_LIMIT; di->btemp_ranges.btemp_low_limit = BTEMP_THERMAL_LOW_LIMIT * 10;
di->btemp_ranges.btemp_med_limit = BTEMP_THERMAL_MED_LIMIT; di->btemp_ranges.btemp_med_limit = BTEMP_THERMAL_MED_LIMIT * 10;
ret = abx500_get_register_interruptible(di->dev, AB8500_CHARGER, ret = abx500_get_register_interruptible(di->dev, AB8500_CHARGER,
AB8500_BTEMP_HIGH_TH, &val); AB8500_BTEMP_HIGH_TH, &val);