4 files changed, 4 insertions, 18 deletions
diff --git a/drivers/iio/proximity/Kconfig b/drivers/iio/proximity/Kconfig
index e9f254ae3892..6b5cce6f1a7b 100644
--- a/drivers/iio/proximity/Kconfig
+++ b/drivers/iio/proximity/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 #
 # Proximity sensors
 #
diff --git a/drivers/iio/proximity/rfd77402.c b/drivers/iio/proximity/rfd77402.c
index fe29fb1a19a6..36480c0100a7 100644
--- a/drivers/iio/proximity/rfd77402.c
+++ b/drivers/iio/proximity/rfd77402.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * rfd77402.c - Support for RF Digital RFD77402 Time-of-Flight (distance) sensor
  *
  * Copyright 2017 Peter Meerwald-Stadler <pmeerw@pmeerw.net>
  *
- * This file is subject to the terms and conditions of version 2 of
- * the GNU General Public License.  See the file COPYING in the main
- * directory of this archive for more details.
- *
  * 7-bit I2C slave address 0x4c
  *
  * TODO: interrupt
diff --git a/drivers/iio/proximity/srf04.c b/drivers/iio/proximity/srf04.c
index 1bad4018d1aa..8b50d56b0a03 100644
--- a/drivers/iio/proximity/srf04.c
+++ b/drivers/iio/proximity/srf04.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * SRF04: ultrasonic sensor for distance measuring by using GPIOs
  *
  * Copyright (c) 2017 Andreas Klinger <ak@it-klinger.de>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that 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.
- *
  * For details about the device see:
  * http://www.robot-electronics.co.uk/htm/srf04tech.htm
  *
diff --git a/drivers/iio/proximity/srf08.c b/drivers/iio/proximity/srf08.c
index f2bf783f829a..b23ce446b7be 100644
--- a/drivers/iio/proximity/srf08.c
+++ b/drivers/iio/proximity/srf08.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * srf08.c - Support for Devantech SRFxx ultrasonic ranger
  *           with i2c interface
@@ -5,10 +6,6 @@
  *
  * Copyright (c) 2016, 2017 Andreas Klinger <ak@it-klinger.de>
  *
- * This file is subject to the terms and conditions of version 2 of
- * the GNU General Public License. See the file COPYING in the main
- * directory of this archive for more details.
- *
  * For details about the device see:
  * http://www.robot-electronics.co.uk/htm/srf08tech.html
  * http://www.robot-electronics.co.uk/htm/srf10tech.htm