From: Lee Jones <lee.jones@linaro.org>
Date: Fri, 11 Jan 2013 13:12:56 +0000 (+0000)
Subject: ab8500_btemp: Allign battery temperature resolution with the framework
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=5b41aa9f2b3a4e44ca4f68cd3076856bd3d93462;p=linux-beck.git

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>
---

diff --git a/drivers/power/ab8500_btemp.c b/drivers/power/ab8500_btemp.c
index 4a570b6c9e47..adebf6c6d146 100644
--- a/drivers/power/ab8500_btemp.c
+++ b/drivers/power/ab8500_btemp.c
@@ -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);