From a08990ea11dc3386cc972c817a121525f7bc7321 Mon Sep 17 00:00:00 2001 From: Matheus Castello Date: Thu, 5 Dec 2019 12:44:10 -0300 Subject: power: supply: max17040: Send uevent in SOC and status change Notify core through power_supply_changed() in case of changes in state of charge and power supply status. This is useful for user-space to efficiently update current battery level. Signed-off-by: Matheus Castello Reviewed-by: Krzysztof Kozlowski Signed-off-by: Sebastian Reichel --- drivers/power/supply/max17040_battery.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'drivers/power') diff --git a/drivers/power/supply/max17040_battery.c b/drivers/power/supply/max17040_battery.c index 2a2a1fd8d4eb..c1188e94cf54 100644 --- a/drivers/power/supply/max17040_battery.c +++ b/drivers/power/supply/max17040_battery.c @@ -207,10 +207,19 @@ static void max17040_check_changes(struct i2c_client *client) static void max17040_work(struct work_struct *work) { struct max17040_chip *chip; + int last_soc, last_status; chip = container_of(work, struct max17040_chip, work.work); + + /* store SOC and status to check changes */ + last_soc = chip->soc; + last_status = chip->status; max17040_check_changes(chip->client); + /* check changes and send uevent */ + if (last_soc != chip->soc || last_status != chip->status) + power_supply_changed(chip->battery); + queue_delayed_work(system_power_efficient_wq, &chip->work, MAX17040_DELAY); } -- cgit v1.2.3