diff --git a/drivers/gpu/drm/rockchip/rk618/rk618_dither.c b/drivers/gpu/drm/rockchip/rk618/rk618_dither.c
index a9bc0c37c2d6..b2ac99cf5a0b 100644
--- a/drivers/gpu/drm/rockchip/rk618/rk618_dither.c
+++ b/drivers/gpu/drm/rockchip/rk618/rk618_dither.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (c) 2017 Rockchip Electronics Co. Ltd.
+ * Copyright (c) 2017 Rockchip Electronics Co., Ltd.
  *
  * Author: Wyon Bi <bivvy.bi@rock-chips.com>
  */
diff --git a/drivers/gpu/drm/rockchip/rk618/rk618_dither.h b/drivers/gpu/drm/rockchip/rk618/rk618_dither.h
index c74bb95f0ce4..8289ef87e932 100644
--- a/drivers/gpu/drm/rockchip/rk618/rk618_dither.h
+++ b/drivers/gpu/drm/rockchip/rk618/rk618_dither.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /*
- * Copyright (c) 2018 Rockchip Electronics Co. Ltd.
+ * Copyright (c) 2018 Rockchip Electronics Co., Ltd.
  *
  * Author: Wyon Bi <bivvy.bi@rock-chips.com>
  */
diff --git a/drivers/gpu/drm/rockchip/rk618/rk618_dsi.c b/drivers/gpu/drm/rockchip/rk618/rk618_dsi.c
index 1fe20e9dc3c8..0539ff1d1da0 100644
--- a/drivers/gpu/drm/rockchip/rk618/rk618_dsi.c
+++ b/drivers/gpu/drm/rockchip/rk618/rk618_dsi.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (c) 2018 Rockchip Electronics Co. Ltd.
+ * Copyright (c) 2018 Rockchip Electronics Co., Ltd.
  *
  * Author: Wyon Bi <bivvy.bi@rock-chips.com>
  */
diff --git a/drivers/gpu/drm/rockchip/rk618/rk618_hdmi.c b/drivers/gpu/drm/rockchip/rk618/rk618_hdmi.c
index d8ce7b621488..512887f4b274 100644
--- a/drivers/gpu/drm/rockchip/rk618/rk618_hdmi.c
+++ b/drivers/gpu/drm/rockchip/rk618/rk618_hdmi.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (c) 2018 Rockchip Electronics Co. Ltd.
+ * Copyright (c) 2018 Rockchip Electronics Co., Ltd.
  *
  * Author: Chen Shunqing <csq@rock-chips.com>
  */
diff --git a/drivers/gpu/drm/rockchip/rk618/rk618_lvds.c b/drivers/gpu/drm/rockchip/rk618/rk618_lvds.c
index f40a826965c4..097e6634d502 100644
--- a/drivers/gpu/drm/rockchip/rk618/rk618_lvds.c
+++ b/drivers/gpu/drm/rockchip/rk618/rk618_lvds.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (c) 2017 Rockchip Electronics Co. Ltd.
+ * Copyright (c) 2017 Rockchip Electronics Co., Ltd.
  *
  * Author: Wyon Bi <bivvy.bi@rock-chips.com>
  */
diff --git a/drivers/gpu/drm/rockchip/rk618/rk618_rgb.c b/drivers/gpu/drm/rockchip/rk618/rk618_rgb.c
index 76efc25aa216..0c7d84fae418 100644
--- a/drivers/gpu/drm/rockchip/rk618/rk618_rgb.c
+++ b/drivers/gpu/drm/rockchip/rk618/rk618_rgb.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (c) 2018 Rockchip Electronics Co. Ltd.
+ * Copyright (c) 2018 Rockchip Electronics Co., Ltd.
  *
  * Author: Chen Shunqing <csq@rock-chips.com>
  */
diff --git a/drivers/gpu/drm/rockchip/rk618/rk618_scaler.c b/drivers/gpu/drm/rockchip/rk618/rk618_scaler.c
index 2c3a67664699..ab948ce803f3 100644
--- a/drivers/gpu/drm/rockchip/rk618/rk618_scaler.c
+++ b/drivers/gpu/drm/rockchip/rk618/rk618_scaler.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (c) 2017 Rockchip Electronics Co. Ltd.
+ * Copyright (c) 2017 Rockchip Electronics Co., Ltd.
  *
  * Author: Wyon Bi <bivvy.bi@rock-chips.com>
  */
diff --git a/drivers/gpu/drm/rockchip/rk618/rk618_vif.c b/drivers/gpu/drm/rockchip/rk618/rk618_vif.c
index 9dc9e10e2d3a..db4288f57b60 100644
--- a/drivers/gpu/drm/rockchip/rk618/rk618_vif.c
+++ b/drivers/gpu/drm/rockchip/rk618/rk618_vif.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (c) 2017 Rockchip Electronics Co. Ltd.
+ * Copyright (c) 2017 Rockchip Electronics Co., Ltd.
  *
  * Author: Wyon Bi <bivvy.bi@rock-chips.com>
  */