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 <>

diff --git a/drivers/power/intel_mid_battery.c b/drivers/power/intel_mid_battery.c
index cffcb7c00b0068da7b32a467358b7e71a0388e13..c82088deaa4fe947793de9f679e90ce1908010b6 100644 (file)
--- 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);
+                       }
                }
        }