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.
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| @@ -484,6 +484,28 @@ int devm_register_power_off_handler(struct device *dev, · 483 unmodified lines | ||
| 484 | 484 | } |
| 485 | 485 | EXPORT_SYMBOL_GPL(devm_register_power_off_handler); |
| 486 | 486 | |
| 487 | +/** | |
| 488 | + * devm_register_restart_handler - Register restart handler | |
| 489 | + * @dev: Device that registers callback | |
| 490 | + * @callback: Callback function | |
| 491 | + * @cb_data: Callback's argument | |
| 492 | + * | |
| 493 | + * Registers resource-managed sys-off handler with a default priority | |
| 494 | + * and using restart mode. | |
| 495 | + * | |
| 496 | + * Returns zero on success, or error code on failure. | |
| 497 | + */ | |
| 498 | +int devm_register_restart_handler(struct device *dev, | |
| 499 | + int (*callback)(struct sys_off_data *data), | |
| 500 | + void *cb_data) | |
| 501 | +{ | |
| 502 | + return devm_register_sys_off_handler(dev, | |
| 503 | + SYS_OFF_MODE_RESTART, | |
| 504 | + SYS_OFF_PRIO_DEFAULT, | |
| 505 | + callback, cb_data); | |
| 506 | +} | |
| 507 | +EXPORT_SYMBOL_GPL(devm_register_restart_handler); | |
| 508 | + | |
| 487 | 509 | static struct sys_off_handler *platform_power_off_handler; |
| 488 | 510 | |
| 489 | 511 | static int platform_power_off_notify(struct sys_off_data *data) |