diff --git a/sound/soc/amd/raven/Makefile b/sound/soc/amd/raven/Makefile
index 8c03e6f..108d1ac 100644
--- a/sound/soc/amd/raven/Makefile
+++ b/sound/soc/amd/raven/Makefile
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0+
+# Raven Ridge platform Support
 snd-pci-acp3x-objs	:= pci-acp3x.o
 snd-acp3x-pcm-dma-objs	:= acp3x-pcm-dma.o
 obj-$(CONFIG_SND_SOC_AMD_ACP3x)	 += snd-pci-acp3x.o
diff --git a/sound/soc/amd/raven/acp3x-pcm-dma.c b/sound/soc/amd/raven/acp3x-pcm-dma.c
index b16cdd1..2aa3420 100644
--- a/sound/soc/amd/raven/acp3x-pcm-dma.c
+++ b/sound/soc/amd/raven/acp3x-pcm-dma.c
@@ -1,17 +1,8 @@
-/*
- * AMD ALSA SoC PCM Driver
- *
- * Copyright 2016 Advanced Micro Devices, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- */
+// SPDX-License-Identifier: GPL-2.0+
+//
+// AMD ALSA SoC PCM Driver
+//
+//Copyright 2016 Advanced Micro Devices, Inc.
 
 #include <linux/platform_device.h>
 #include <linux/module.h>
diff --git a/sound/soc/amd/raven/acp3x.h b/sound/soc/amd/raven/acp3x.h
index 95fef85..4f2cadd 100644
--- a/sound/soc/amd/raven/acp3x.h
+++ b/sound/soc/amd/raven/acp3x.h
@@ -1,3 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * AMD ALSA SoC PCM Driver
+ *
+ * Copyright 2016 Advanced Micro Devices, Inc.
+ */
+
 #include "chip_offset_byte.h"
 
 #define ACP3x_PHY_BASE_ADDRESS 0x1240000
diff --git a/sound/soc/amd/raven/chip_offset_byte.h b/sound/soc/amd/raven/chip_offset_byte.h
index fceb7bb..9c1fac5 100644
--- a/sound/soc/amd/raven/chip_offset_byte.h
+++ b/sound/soc/amd/raven/chip_offset_byte.h
@@ -1,24 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
- * ACP 3.0 Register documentation
+ * AMD ACP 3.0 Register Documentation
  *
- * Copyright (C) 2016 Advanced Micro Devices, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
- * IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * Copyright 2016 Advanced Micro Devices, Inc.
  */
 
 #ifndef _acp_ip_OFFSET_HEADER
diff --git a/sound/soc/amd/raven/pci-acp3x.c b/sound/soc/amd/raven/pci-acp3x.c
index 0700162..ef805e7 100644
--- a/sound/soc/amd/raven/pci-acp3x.c
+++ b/sound/soc/amd/raven/pci-acp3x.c
@@ -1,17 +1,8 @@
-/*
- * AMD ALSA SoC PCM Driver
- *
- * Copyright 2016 Advanced Micro Devices, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- */
+// SPDX-License-Identifier: GPL-2.0+
+//
+// AMD ACP PCI Driver
+//
+//Copyright 2016 Advanced Micro Devices, Inc.
 
 #include <linux/pci.h>
 #include <linux/module.h>
