diff -drupN a/drivers/char/sunxi-scr/smartcard.h b/drivers/char/sunxi-scr/smartcard.h
--- a/drivers/char/sunxi-scr/smartcard.h	1970-01-01 03:00:00.000000000 +0300
+++ b/drivers/char/sunxi-scr/smartcard.h	2022-06-12 05:28:14.000000000 +0300
@@ -0,0 +1,23 @@
+/*
+ * drivers/char/sunxi-scr/smartcard.h
+ *
+ * Copyright (C) 2016 Allwinner.
+ * fuzhaoke <fuzhaoke@allwinnertech.com>
+ *
+ * Header file ISO7816 smart card
+ *
+ * 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 __SMARTCARD_H__
+#define __SMARTCARD_H__
+
+#include "sunxi-scr-user.h"
+
+void smartcard_atr_decode(struct smc_atr_para *pscatr, struct smc_pps_para *psmc_pps,
+			uint8_t *pdata, uint8_t with_ts);
+
+#endif