power: supply: bq27xxx: After charger plug in/out wait 0.5s for things to stabilize

[ Upstream commit 59a99cd462fbdf71f4e845e09f37783035088b4f ]

bq27xxx_external_power_changed() gets called when the charger is plugged
in or out. Rather then immediately scheduling an update wait 0.5 seconds
for things to stabilize, so that e.g. the (dis)charge current is stable
when bq27xxx_battery_update() runs.

Fixes: 740b755a3b34 ("bq27x00: Poll battery state")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/power/supply/bq27xxx_battery.c b/drivers/power/supply/bq27xxx_battery.c
index b45cbd40294b9cc4f9b230e30adbd2494c385053..ffdd646d7ebc00ea3c11b42faddd098cc8e11417 100644 (file)
--- a/drivers/power/supply/bq27xxx_battery.c
+++ b/drivers/power/supply/bq27xxx_battery.c
@@ -1862,8 +1862,8 @@ static void bq27xxx_external_power_changed(struct power_supply *psy)
 {
        struct bq27xxx_device_info *di = power_supply_get_drvdata(psy);
 
-       cancel_delayed_work_sync(&di->work);
-       schedule_delayed_work(&di->work, 0);
+       /* After charger plug in/out wait 0.5s for things to stabilize */
+       mod_delayed_work(system_wq, &di->work, HZ / 2);
 }
 
 int bq27xxx_battery_setup(struct bq27xxx_device_info *di)