@@ -141,6 +141,10 @@ int devm_register_sys_off_handler(struct device *dev,
int (*callback)(struct sys_off_data *data),
void *cb_data);
+int devm_register_power_off_handler(struct device *dev,
+ int (*callback)(struct sys_off_data *data),
+ void *cb_data);
+
int register_platform_power_off(void (*power_off)(void));
void unregister_platform_power_off(void (*power_off)(void));
@@ -462,6 +462,28 @@ int devm_register_sys_off_handler(struct device *dev,
}
EXPORT_SYMBOL_GPL(devm_register_sys_off_handler);
+/**
+ * devm_register_power_off_handler - Register power-off 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 power-off mode.
+ *
+ * Returns zero on success, or error code on failure.
+ */
+int devm_register_power_off_handler(struct device *dev,
+ int (*callback)(struct sys_off_data *data),
+ void *cb_data)
+{
+ return devm_register_sys_off_handler(dev,
+ SYS_OFF_MODE_POWER_OFF,
+ SYS_OFF_PRIO_DEFAULT,
+ callback, cb_data);
+}
+EXPORT_SYMBOL_GPL(devm_register_power_off_handler);
+
static struct sys_off_handler *platform_power_off_handler;
static int platform_power_off_notify(struct sys_off_data *data)
Add devm_register_power_off_handler() helper that registers sys-off handler using power-off mode and with a default priority. Most drivers will want to register power-off 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> --- include/linux/reboot.h | 4 ++++ kernel/reboot.c | 22 ++++++++++++++++++++++ 2 files changed, 26 insertions(+)