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>

diff --git a/drivers/power/bq27x00_battery.c b/drivers/power/bq27x00_battery.c
index 0e99d02dea3355f5f93882f0e8f995d7181d13d7..003be5f1c785d34901b26c78f2442310e6d6a5eb 100644 (file)
--- 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;
        }