diff --git a/drivers/nvmem/rockchip-secure-otp.c b/drivers/nvmem/rockchip-secure-otp.c
index d71be3a95834..e8df65c3736b 100644
--- a/drivers/nvmem/rockchip-secure-otp.c
+++ b/drivers/nvmem/rockchip-secure-otp.c
@@ -2,7 +2,7 @@
 /*
  * Rockchip Secure OTP Driver
  *
- * Copyright (c) 2023 Rockchip Electronics Co. Ltd.
+ * Copyright (c) 2023 Rockchip Electronics Co., Ltd.
  * Author: Hisping <hisping.lin@rock-chips.com>
  */
 
diff --git a/include/linux/rockchip/nvmem.h b/include/linux/rockchip/nvmem.h
index 741887856e33..bda7c9b82caa 100644
--- a/include/linux/rockchip/nvmem.h
+++ b/include/linux/rockchip/nvmem.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * Copyright (c) 2023 Rockchip Electronics Co. Ltd.
+ * Copyright (c) 2023 Rockchip Electronics Co., Ltd.
  * Author: Hisping <hisping.lin@rock-chips.com>
  */
 #ifndef __ROCKCHIP_NVMEM_H