From: Major Lee <major_lee@wistrom.com>
Date: Wed, 5 Oct 2011 00:42:25 +0000 (+1100)
Subject: mrst: battery fixes
X-Git-Tag: next-20111013~1^2~271
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=6ebd4e2ec459fd81e50e86edebe6b30b3d2ebfcb;p=karo-tx-linux.git

mrst: battery fixes

When DCDC input line over current detecting, PMIC will change charging
current automatically.  Logging event is enough.

Signed-off-by: Major Lee <major_lee@wistron.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: Mathias Nyman <mathias.nyman@linux.intel.com>
Cc: Feng Tang <feng.tang@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/drivers/power/intel_mid_battery.c b/drivers/power/intel_mid_battery.c
index cffcb7c00b00..c82088deaa4f 100644
--- a/drivers/power/intel_mid_battery.c
+++ b/drivers/power/intel_mid_battery.c
@@ -61,7 +61,8 @@ MODULE_PARM_DESC(debug, "Flag to enable PMIC Battery debug messages.");
 #define PMIC_BATT_CHR_SBATDET_MASK	(1 << 5)
 #define PMIC_BATT_CHR_SDCLMT_MASK	(1 << 6)
 #define PMIC_BATT_CHR_SUSBOVP_MASK	(1 << 7)
-#define PMIC_BATT_CHR_EXCPT_MASK	0xC6
+#define PMIC_BATT_CHR_EXCPT_MASK	0x86
+
 #define PMIC_BATT_ADC_ACCCHRG_MASK	(1 << 31)
 #define PMIC_BATT_ADC_ACCCHRGVAL_MASK	0x7FFFFFFF
 
@@ -304,11 +305,6 @@ static void pmic_battery_read_status(struct pmic_power_module_info *pbi)
 			pbi->batt_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
 			pmic_battery_log_event(BATT_EVENT_BATOVP_EXCPT);
 			batt_exception = 1;
-		} else if (r8 & PMIC_BATT_CHR_SDCLMT_MASK) {
-			pbi->batt_health = POWER_SUPPLY_HEALTH_OVERVOLTAGE;
-			pbi->batt_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
-			pmic_battery_log_event(BATT_EVENT_DCLMT_EXCPT);
-			batt_exception = 1;
 		} else if (r8 & PMIC_BATT_CHR_STEMP_MASK) {
 			pbi->batt_health = POWER_SUPPLY_HEALTH_OVERHEAT;
 			pbi->batt_status = POWER_SUPPLY_STATUS_NOT_CHARGING;
@@ -316,6 +312,10 @@ static void pmic_battery_read_status(struct pmic_power_module_info *pbi)
 			batt_exception = 1;
 		} else {
 			pbi->batt_health = POWER_SUPPLY_HEALTH_GOOD;
+			if (r8 & PMIC_BATT_CHR_SDCLMT_MASK) {
+				/* PMIC will change charging current automatically */
+				pmic_battery_log_event(pbi, BATT_EVENT_DCLMT_EXCPT);
+			}
 		}
 	}