4 files changed, 4 insertions, 4 deletions
diff --git a/drivers/iio/frequency/Kconfig b/drivers/iio/frequency/Kconfig
index dc5e0b72882f..c86db8b42380 100644
--- a/drivers/iio/frequency/Kconfig
+++ b/drivers/iio/frequency/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 #
 # Frequency
 #	Direct Digital Synthesis drivers (DDS)
diff --git a/drivers/iio/frequency/Makefile b/drivers/iio/frequency/Makefile
index 2bca03f3e2e3..f2e396d40ddd 100644
--- a/drivers/iio/frequency/Makefile
+++ b/drivers/iio/frequency/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 #
 # Makefile iio/frequency
 #
diff --git a/drivers/iio/frequency/ad9523.c b/drivers/iio/frequency/ad9523.c
index ceb1daceeb46..a7322184cbdd 100644
--- a/drivers/iio/frequency/ad9523.c
+++ b/drivers/iio/frequency/ad9523.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD9523 SPI Low Jitter Clock Generator
  *
  * Copyright 2012 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/device.h>
diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c
index f4748ff243f7..ae0ca09ae062 100644
--- a/drivers/iio/frequency/adf4350.c
+++ b/drivers/iio/frequency/adf4350.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * ADF4350/ADF4351 SPI Wideband Synthesizer driver
  *
  * Copyright 2012-2013 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/device.h>