Commit e55a5061 authored by Iskren Chernev's avatar Iskren Chernev Committed by Sebastian Reichel

power: supply: max17040: Use devm_ to automate remove

Two actions were performed during remove - power supply dereg and
delayed work cleanup. Power supply dereg can be handled by using the
devm_ version of the registration function. Work cleanup can be added as
a devm_action.

If probe fails after psy registration it will now be cleaned up
properly.
Signed-off-by: default avatarIskren Chernev <iskren.chernev@gmail.com>
Tested-by: default avatarJonathan Bakker <xc-racer2@live.ca>
Signed-off-by: default avatarSebastian Reichel <sebastian.reichel@collabora.com>
parent 05f94eb9
...@@ -207,6 +207,19 @@ static void max17040_check_changes(struct i2c_client *client) ...@@ -207,6 +207,19 @@ static void max17040_check_changes(struct i2c_client *client)
max17040_get_status(client); max17040_get_status(client);
} }
static void max17040_queue_work(struct max17040_chip *chip)
{
queue_delayed_work(system_power_efficient_wq, &chip->work,
MAX17040_DELAY);
}
static void max17040_stop_work(void *data)
{
struct max17040_chip *chip = data;
cancel_delayed_work_sync(&chip->work);
}
static void max17040_work(struct work_struct *work) static void max17040_work(struct work_struct *work)
{ {
struct max17040_chip *chip; struct max17040_chip *chip;
...@@ -223,8 +236,7 @@ static void max17040_work(struct work_struct *work) ...@@ -223,8 +236,7 @@ static void max17040_work(struct work_struct *work)
if (last_soc != chip->soc || last_status != chip->status) if (last_soc != chip->soc || last_status != chip->status)
power_supply_changed(chip->battery); power_supply_changed(chip->battery);
queue_delayed_work(system_power_efficient_wq, &chip->work, max17040_queue_work(chip);
MAX17040_DELAY);
} }
static irqreturn_t max17040_thread_handler(int id, void *dev) static irqreturn_t max17040_thread_handler(int id, void *dev)
...@@ -339,7 +351,7 @@ static int max17040_probe(struct i2c_client *client, ...@@ -339,7 +351,7 @@ static int max17040_probe(struct i2c_client *client,
i2c_set_clientdata(client, chip); i2c_set_clientdata(client, chip);
psy_cfg.drv_data = chip; psy_cfg.drv_data = chip;
chip->battery = power_supply_register(&client->dev, chip->battery = devm_power_supply_register(&client->dev,
&max17040_battery_desc, &psy_cfg); &max17040_battery_desc, &psy_cfg);
if (IS_ERR(chip->battery)) { if (IS_ERR(chip->battery)) {
dev_err(&client->dev, "failed: power supply register\n"); dev_err(&client->dev, "failed: power supply register\n");
...@@ -368,18 +380,11 @@ static int max17040_probe(struct i2c_client *client, ...@@ -368,18 +380,11 @@ static int max17040_probe(struct i2c_client *client,
} }
INIT_DEFERRABLE_WORK(&chip->work, max17040_work); INIT_DEFERRABLE_WORK(&chip->work, max17040_work);
queue_delayed_work(system_power_efficient_wq, &chip->work, ret = devm_add_action(&client->dev, max17040_stop_work, chip);
MAX17040_DELAY); if (ret)
return ret;
return 0; max17040_queue_work(chip);
}
static int max17040_remove(struct i2c_client *client)
{
struct max17040_chip *chip = i2c_get_clientdata(client);
power_supply_unregister(chip->battery);
cancel_delayed_work(&chip->work);
return 0; return 0;
} }
...@@ -403,12 +408,11 @@ static int max17040_resume(struct device *dev) ...@@ -403,12 +408,11 @@ static int max17040_resume(struct device *dev)
struct i2c_client *client = to_i2c_client(dev); struct i2c_client *client = to_i2c_client(dev);
struct max17040_chip *chip = i2c_get_clientdata(client); struct max17040_chip *chip = i2c_get_clientdata(client);
queue_delayed_work(system_power_efficient_wq, &chip->work,
MAX17040_DELAY);
if (client->irq && device_may_wakeup(dev)) if (client->irq && device_may_wakeup(dev))
disable_irq_wake(client->irq); disable_irq_wake(client->irq);
max17040_queue_work(chip);
return 0; return 0;
} }
...@@ -442,7 +446,6 @@ static struct i2c_driver max17040_i2c_driver = { ...@@ -442,7 +446,6 @@ static struct i2c_driver max17040_i2c_driver = {
.pm = MAX17040_PM_OPS, .pm = MAX17040_PM_OPS,
}, },
.probe = max17040_probe, .probe = max17040_probe,
.remove = max17040_remove,
.id_table = max17040_id, .id_table = max17040_id,
}; };
module_i2c_driver(max17040_i2c_driver); module_i2c_driver(max17040_i2c_driver);
......
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