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-rw-r--r--drivers/mfd/wm8350-regmap.c2
-rw-r--r--drivers/power/wm8350_power.c33
-rw-r--r--include/linux/mfd/wm8350/core.h7
3 files changed, 33 insertions, 9 deletions
diff --git a/drivers/mfd/wm8350-regmap.c b/drivers/mfd/wm8350-regmap.c
index aaf394aa9c2d..b43d64c2b920 100644
--- a/drivers/mfd/wm8350-regmap.c
+++ b/drivers/mfd/wm8350-regmap.c
@@ -1314,7 +1314,7 @@ const struct wm8350_reg_access wm8350_reg_io_map[] = {
{ 0xFFFF, 0xFFFF, 0xFFFF }, /* R223 */
{ 0x0000, 0x0000, 0x0000 }, /* R224 */
{ 0x8F3F, 0x0000, 0xFFFF }, /* R225 - DCDC/LDO status */
- { 0x0000, 0x0000, 0x0000 }, /* R226 */
+ { 0x0000, 0x0000, 0xFFFF }, /* R226 - Charger status */
{ 0x0000, 0x0000, 0xFFFF }, /* R227 */
{ 0x0000, 0x0000, 0x0000 }, /* R228 */
{ 0x0000, 0x0000, 0x0000 }, /* R229 */
diff --git a/drivers/power/wm8350_power.c b/drivers/power/wm8350_power.c
index 74e7593beffb..1b16bf343f2f 100644
--- a/drivers/power/wm8350_power.c
+++ b/drivers/power/wm8350_power.c
@@ -190,22 +190,18 @@ static void wm8350_charger_handler(struct wm8350 *wm8350, int irq, void *data)
struct wm8350_charger_policy *policy = power->policy;
switch (irq) {
- case WM8350_IRQ_CHG_BAT_HOT:
- dev_err(wm8350->dev, "battery too hot\n");
- break;
- case WM8350_IRQ_CHG_BAT_COLD:
- dev_err(wm8350->dev, "battery too cold\n");
- break;
case WM8350_IRQ_CHG_BAT_FAIL:
dev_err(wm8350->dev, "battery failed\n");
break;
case WM8350_IRQ_CHG_TO:
dev_err(wm8350->dev, "charger timeout\n");
- break;
- case WM8350_IRQ_CHG_END:
power_supply_changed(&power->battery);
break;
+
+ case WM8350_IRQ_CHG_BAT_HOT:
+ case WM8350_IRQ_CHG_BAT_COLD:
case WM8350_IRQ_CHG_START:
+ case WM8350_IRQ_CHG_END:
power_supply_changed(&power->battery);
break;
@@ -308,6 +304,23 @@ static enum power_supply_property wm8350_usb_props[] = {
* Battery properties
*********************************************************************/
+static int wm8350_bat_check_health(struct wm8350 *wm8350)
+{
+ u16 reg;
+
+ if (wm8350_read_battery_uvolts(wm8350) < 2850000)
+ return POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
+
+ reg = wm8350_reg_read(wm8350, WM8350_CHARGER_OVERRIDES);
+ if (reg & WM8350_CHG_BATT_HOT_OVRDE)
+ return POWER_SUPPLY_HEALTH_OVERHEAT;
+
+ if (reg & WM8350_CHG_BATT_COLD_OVRDE)
+ return POWER_SUPPLY_HEALTH_COLD;
+
+ return POWER_SUPPLY_HEALTH_GOOD;
+}
+
static int wm8350_bat_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
@@ -326,6 +339,9 @@ static int wm8350_bat_get_property(struct power_supply *psy,
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
val->intval = wm8350_read_battery_uvolts(wm8350);
break;
+ case POWER_SUPPLY_PROP_HEALTH:
+ val->intval = wm8350_bat_check_health(wm8350);
+ break;
default:
ret = -EINVAL;
break;
@@ -338,6 +354,7 @@ static enum power_supply_property wm8350_bat_props[] = {
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_ONLINE,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_HEALTH,
};
/*********************************************************************
diff --git a/include/linux/mfd/wm8350/core.h b/include/linux/mfd/wm8350/core.h
index 2a7abeebe777..afeff6f1316c 100644
--- a/include/linux/mfd/wm8350/core.h
+++ b/include/linux/mfd/wm8350/core.h
@@ -58,6 +58,7 @@
#define WM8350_OVER_CURRENT_INT_STATUS_MASK 0x25
#define WM8350_GPIO_INT_STATUS_MASK 0x26
#define WM8350_COMPARATOR_INT_STATUS_MASK 0x27
+#define WM8350_CHARGER_OVERRIDES 0xE2
#define WM8350_MISC_OVERRIDES 0xE3
#define WM8350_COMPARATOR_OVERRIDES 0xE7
#define WM8350_STATE_MACHINE_STATUS 0xE9
@@ -533,6 +534,12 @@
#define WM8350_DC1_STS 0x0001
/*
+ * R226 (0xE2) - Charger status
+ */
+#define WM8350_CHG_BATT_HOT_OVRDE 0x8000
+#define WM8350_CHG_BATT_COLD_OVRDE 0x4000
+
+/*
* R227 (0xE3) - Misc Overrides
*/
#define WM8350_USB_LIMIT_OVRDE 0x0400