5 files changed, 5 insertions, 0 deletions
diff --git a/sound/soc/au1x/ac97c.c b/sound/soc/au1x/ac97c.c
index 66d6c52e7761..0792c40e6cc1 100644
--- a/sound/soc/au1x/ac97c.c
+++ b/sound/soc/au1x/ac97c.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Au1000/Au1500/Au1100 AC97C controller driver for ASoC
  *
diff --git a/sound/soc/au1x/db1000.c b/sound/soc/au1x/db1000.c
index e97c32798e98..8b17fd746195 100644
--- a/sound/soc/au1x/db1000.c
+++ b/sound/soc/au1x/db1000.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * DB1000/DB1500/DB1100 ASoC audio fabric support code.
  *
diff --git a/sound/soc/au1x/db1200.c b/sound/soc/au1x/db1200.c
index 301e1fc9a377..2a4621d2bda4 100644
--- a/sound/soc/au1x/db1200.c
+++ b/sound/soc/au1x/db1200.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * DB1200/DB1300/DB1550 ASoC audio fabric support code.
  *
diff --git a/sound/soc/au1x/dma.c b/sound/soc/au1x/dma.c
index efff1e293a1b..1e98cc4f9e27 100644
--- a/sound/soc/au1x/dma.c
+++ b/sound/soc/au1x/dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Au1000/Au1500/Au1100 Audio DMA support.
  *
diff --git a/sound/soc/au1x/i2sc.c b/sound/soc/au1x/i2sc.c
index 450c842c776c..46f2b447ec9a 100644
--- a/sound/soc/au1x/i2sc.c
+++ b/sound/soc/au1x/i2sc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Au1000/Au1500/Au1100 I2S controller driver for ASoC
  *