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power: reset: atc260x-poweroff: Use devm_register_sys_off_handler(POWER_OFF)

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Use device life-cycle managed register function to simplify probe and
exit paths.

Signed-off-by: Andrew Davis <afd@ti.com>
Reviewed-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Link: https://lore.kernel.org/r/20240212162831.67838-3-afd@ti.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Andrew Davis 2024-02-12 10:28:14 -06:00 committed by Sebastian Reichel
parent f22e835028
commit ab1439b051
1 changed files with 14 additions and 24 deletions
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38
drivers/power/reset/atc260x-poweroff.c
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@ -19,9 +19,6 @@ struct atc260x_pwrc {
int (*do_poweroff)(const struct atc260x_pwrc *pwrc, bool restart);
};
/* Global variable needed only for pm_power_off */
static struct atc260x_pwrc *atc260x_pwrc_data;
static int atc2603c_do_poweroff(const struct atc260x_pwrc *pwrc, bool restart)
{
int ret, deep_sleep = 0;
@ -164,11 +161,15 @@ static int atc2609a_init(const struct atc260x_pwrc *pwrc)
return ret;
}
static void atc260x_pwrc_pm_handler(void)
static int atc260x_pwrc_pm_handler(struct sys_off_data *data)
{
atc260x_pwrc_data->do_poweroff(atc260x_pwrc_data, false);
struct atc260x_pwrc *pwrc = data->cb_data;
pwrc->do_poweroff(pwrc, false);
WARN_ONCE(1, "Unable to power off system\n");
return NOTIFY_DONE;
}
static int atc260x_pwrc_restart_handler(struct sys_off_data *data)
@ -211,14 +212,14 @@ static int atc260x_pwrc_probe(struct platform_device *pdev)
if (ret)
return ret;
platform_set_drvdata(pdev, priv);
if (!pm_power_off) {
atc260x_pwrc_data = priv;
pm_power_off = atc260x_pwrc_pm_handler;
} else {
dev_warn(priv->dev, "Poweroff callback already assigned\n");
}
ret = devm_register_sys_off_handler(priv->dev,
SYS_OFF_MODE_POWER_OFF,
SYS_OFF_PRIO_DEFAULT,
atc260x_pwrc_pm_handler,
priv);
if (ret)
dev_err(priv->dev, "failed to register power-off handler: %d\n",
ret);
ret = devm_register_sys_off_handler(priv->dev,
SYS_OFF_MODE_RESTART,
@ -232,19 +233,8 @@ static int atc260x_pwrc_probe(struct platform_device *pdev)
return ret;
}
static void atc260x_pwrc_remove(struct platform_device *pdev)
{
struct atc260x_pwrc *priv = platform_get_drvdata(pdev);
if (atc260x_pwrc_data == priv) {
pm_power_off = NULL;
atc260x_pwrc_data = NULL;
}
}
static struct platform_driver atc260x_pwrc_driver = {
.probe = atc260x_pwrc_probe,
.remove_new = atc260x_pwrc_remove,
.driver = {
.name = "atc260x-pwrc",
},