diff options
| author | Dmitry Osipenko <dmitry.osipenko@collabora.com> | 2022-05-10 02:32:35 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-05-19 19:30:31 +0200 |
| commit | 6779db970bd287bb35b28bd5dc256fd7aef19d1c (patch) | |
| tree | 382d19ad7c352ec5a6eb3c2e3752278fe33cef81 /kernel/reboot.c | |
| parent | d2c5415327171e6c1bca2dc4d8a77f450ecf7150 (diff) | |
kernel/reboot: Add devm_register_restart_handler()
Add devm_register_restart_handler() helper that registers sys-off
handler using restart mode and with a default priority. Most drivers
will want to register restart handler with a default priority, so this
helper will reduce the boilerplate code and make code easier to read and
follow.
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'kernel/reboot.c')
| -rw-r--r-- | kernel/reboot.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/kernel/reboot.c b/kernel/reboot.c index 4dbb6e29247a..bdb635842ec8 100644 --- a/kernel/reboot.c +++ b/kernel/reboot.c @@ -484,6 +484,28 @@ int devm_register_power_off_handler(struct device *dev, } EXPORT_SYMBOL_GPL(devm_register_power_off_handler); +/** + * devm_register_restart_handler - Register restart handler + * @dev: Device that registers callback + * @callback: Callback function + * @cb_data: Callback's argument + * + * Registers resource-managed sys-off handler with a default priority + * and using restart mode. + * + * Returns zero on success, or error code on failure. + */ +int devm_register_restart_handler(struct device *dev, + int (*callback)(struct sys_off_data *data), + void *cb_data) +{ + return devm_register_sys_off_handler(dev, + SYS_OFF_MODE_RESTART, + SYS_OFF_PRIO_DEFAULT, + callback, cb_data); +} +EXPORT_SYMBOL_GPL(devm_register_restart_handler); + static struct sys_off_handler *platform_power_off_handler; static int platform_power_off_notify(struct sys_off_data *data) |