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-rw-r--r--drivers/power/lp8727_charger.c31
1 files changed, 26 insertions, 5 deletions
diff --git a/drivers/power/lp8727_charger.c b/drivers/power/lp8727_charger.c
index b5567bc99000..1a5f4b27e001 100644
--- a/drivers/power/lp8727_charger.c
+++ b/drivers/power/lp8727_charger.c
@@ -58,6 +58,7 @@
/* STATUS2 register */
#define TEMP_STAT (3 << 5)
+#define TEMP_SHIFT 5
enum lp8727_dev_id {
ID_NONE,
@@ -75,6 +76,13 @@ enum lp8727_chg_stat {
EOC,
};
+enum lp8727_die_temp {
+ LP8788_TEMP_75C,
+ LP8788_TEMP_95C,
+ LP8788_TEMP_115C,
+ LP8788_TEMP_135C,
+};
+
struct lp8727_psy {
struct power_supply ac;
struct power_supply usb;
@@ -315,12 +323,25 @@ static int lp8727_charger_get_property(struct power_supply *psy,
return 0;
}
+static bool lp8727_is_high_temperature(enum lp8727_die_temp temp)
+{
+ switch (temp) {
+ case LP8788_TEMP_95C:
+ case LP8788_TEMP_115C:
+ case LP8788_TEMP_135C:
+ return true;
+ default:
+ return false;
+ }
+}
+
static int lp8727_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
struct lp8727_chg *pchg = dev_get_drvdata(psy->dev->parent);
struct lp8727_platform_data *pdata = pchg->pdata;
+ enum lp8727_die_temp temp;
u8 read;
switch (psp) {
@@ -337,11 +358,11 @@ static int lp8727_battery_get_property(struct power_supply *psy,
break;
case POWER_SUPPLY_PROP_HEALTH:
lp8727_read_byte(pchg, STATUS2, &read);
- read = (read & TEMP_STAT) >> 5;
- if (read >= 0x1 && read <= 0x3)
- val->intval = POWER_SUPPLY_HEALTH_OVERHEAT;
- else
- val->intval = POWER_SUPPLY_HEALTH_GOOD;
+ temp = (read & TEMP_STAT) >> TEMP_SHIFT;
+
+ val->intval = lp8727_is_high_temperature(temp) ?
+ POWER_SUPPLY_HEALTH_OVERHEAT :
+ POWER_SUPPLY_HEALTH_GOOD;
break;
case POWER_SUPPLY_PROP_PRESENT:
if (!pdata)