bq27x00: Give more specific reports on battery status

The current code only reports whether the battery is charging or
discharging. But the battery also reports whether it is fully charged,
furthermore by look at if the battery is supplied we can tell whether it
is discharging or not charging.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Rodolfo Giometti <giometti@linux.it>
Tested-by: Grazvydas Ignotas <notasas@gmail.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c
index 0e99d02dea33..003be5f1c785 100644
--- a/drivers/power/bq27x00_battery.c
+++ b/drivers/power/bq27x00_battery.c
@@ -54,6 +54,7 @@
 #define BQ27000_REG_RSOC                0x0B /* Relative State-of-Charge */
 #define BQ27000_REG_ILMD                0x76 /* Initial last measured discharge */
 #define BQ27000_FLAG_CHGS               BIT(7)
+#define BQ27000_FLAG_FC                 BIT(5)
 
 #define BQ27500_REG_SOC                 0x2c
 #define BQ27500_REG_DCAP                0x3C /* Design capacity */
@@ -365,8 +366,12 @@ static int bq27x00_battery_status(struct bq27x00_device_info *di,
                 else
                         status = POWER_SUPPLY_STATUS_CHARGING;
         } else {
-                if (di->cache.flags & BQ27000_FLAG_CHGS)
+                if (di->cache.flags & BQ27000_FLAG_FC)
+                        status = POWER_SUPPLY_STATUS_FULL;
+                else if (di->cache.flags & BQ27000_FLAG_CHGS)
                         status = POWER_SUPPLY_STATUS_CHARGING;
+                else if (power_supply_am_i_supplied(&di->bat))
+                        status = POWER_SUPPLY_STATUS_NOT_CHARGING;
                 else
                         status = POWER_SUPPLY_STATUS_DISCHARGING;
         }