Commit 5b41aa9f authored by Lee Jones's avatar Lee Jones Committed by Anton Vorontsov
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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: default avatarLee Jones <lee.jones@linaro.org>
Signed-off-by: default avatarAnton Vorontsov <anton@enomsg.org>
parent 129d583b

drivers/power/ab8500_btemp.c

+6 −6
Original line number Diff line number Diff line
@@ -746,22 +746,22 @@ static int ab8500_btemp_get_temp(struct ab8500_btemp *di) 
	} else {

		if (di->events.btemp_low) {

			if (temp > di->btemp_ranges.btemp_low_limit)

				temp = di->btemp_ranges.btemp_low_limit;

				temp = di->btemp_ranges.btemp_low_limit * 10;

			else

				temp = di->bat_temp * 10;

		} else if (di->events.btemp_high) {

			if (temp < di->btemp_ranges.btemp_high_limit)

				temp = di->btemp_ranges.btemp_high_limit;

				temp = di->btemp_ranges.btemp_high_limit * 10;

			else

				temp = di->bat_temp * 10;

		} else if (di->events.btemp_lowmed) {

			if (temp > di->btemp_ranges.btemp_med_limit)

				temp = di->btemp_ranges.btemp_med_limit;

				temp = di->btemp_ranges.btemp_med_limit * 10;

			else

				temp = di->bat_temp * 10;

		} else if (di->events.btemp_medhigh) {

			if (temp < di->btemp_ranges.btemp_med_limit)

				temp = di->btemp_ranges.btemp_med_limit;

				temp = di->btemp_ranges.btemp_med_limit * 10;

			else

				temp = di->bat_temp * 10;

		} else
@@ -1030,8 +1030,8 @@ static int ab8500_btemp_probe(struct platform_device *pdev) 
		ab8500_btemp_periodic_work);



	/* Set BTEMP thermal limits. Low and Med are fixed */

	di->btemp_ranges.btemp_low_limit = BTEMP_THERMAL_LOW_LIMIT;

	di->btemp_ranges.btemp_med_limit = BTEMP_THERMAL_MED_LIMIT;

	di->btemp_ranges.btemp_low_limit = BTEMP_THERMAL_LOW_LIMIT * 10;

	di->btemp_ranges.btemp_med_limit = BTEMP_THERMAL_MED_LIMIT * 10;



	ret = abx500_get_register_interruptible(di->dev, AB8500_CHARGER,

		AB8500_BTEMP_HIGH_TH, &val);