diff -drupN a/include/linux/arisc/arisc-notifier.h b/include/linux/arisc/arisc-notifier.h
--- a/include/linux/arisc/arisc-notifier.h	1970-01-01 03:00:00.000000000 +0300
+++ b/include/linux/arisc/arisc-notifier.h	2022-06-12 05:28:14.000000000 +0300
@@ -0,0 +1,29 @@
+/*
+ * linux/include/arisc-notifer.h
+ *
+ * Copyright(c) 2013-2015 Allwinnertech Co., Ltd.
+ *         http://www.allwinnertech.com
+ *
+ * Author: sunny <sunny@allwinnertech.com>
+ *
+ * arisc notifier framework.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __LINUX_ARISC_NOTIFIER_H__
+#define __LINUX_ARISC_NOTIFIER_H__
+
+#include <linux/notifier.h>
+
+#define ARISC_INIT_READY  0x0001 /* arisc module init ready */
+
+int  arisc_register_notifier(struct notifier_block *nb);
+int  arisc_notify(unsigned long val, void *v);
+void arisc_unregister_notifier(struct notifier_block *nb);
+
+#endif /* __LINUX_ARISC_NOTIFIER_H__ */
+