treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 177

Based on 1 normalized pattern(s):

  licensed under the gpl 2

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 135 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190528170026.071193225@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/clk/clk-axi-clkgen.c b/drivers/clk/clk-axi-clkgen.c
index 48d11f2..96f3517 100644
--- a/drivers/clk/clk-axi-clkgen.c
+++ b/drivers/clk/clk-axi-clkgen.c
@@ -1,11 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AXI clkgen driver
  *
  * Copyright 2012-2013 Analog Devices Inc.
  *  Author: Lars-Peter Clausen <lars@metafoo.de>
- *
- * Licensed under the GPL-2.
- *
  */
 
 #include <linux/platform_device.h>
diff --git a/drivers/crypto/sunxi-ss/sun4i-ss.h b/drivers/crypto/sunxi-ss/sun4i-ss.h
index 8c4ec9e..68b82d1 100644
--- a/drivers/crypto/sunxi-ss/sun4i-ss.h
+++ b/drivers/crypto/sunxi-ss/sun4i-ss.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * sun4i-ss.h - hardware cryptographic accelerator for Allwinner A20 SoC
  *
@@ -8,8 +9,6 @@
  * Support DES and 3DES
  *
  * You could find the datasheet in Documentation/arm/sunxi/README
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/clk.h>
diff --git a/drivers/dma/dma-axi-dmac.c b/drivers/dma/dma-axi-dmac.c
index f32fdf2..8a3f104 100644
--- a/drivers/dma/dma-axi-dmac.c
+++ b/drivers/dma/dma-axi-dmac.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Driver for the Analog Devices AXI-DMAC core
  *
  * Copyright 2013-2015 Analog Devices Inc.
  *  Author: Lars-Peter Clausen <lars@metafoo.de>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/clk.h>
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511.h b/drivers/gpu/drm/bridge/adv7511/adv7511.h
index 996a7e7..52b2adfd 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7511.h
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Analog Devices ADV7511 HDMI transmitter driver
  *
  * Copyright 2012 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #ifndef __DRM_I2C_ADV7511_H__
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c b/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c
index 1b4783d..a428185 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511_audio.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Analog Devices ADV7511 HDMI transmitter driver
  *
  * Copyright 2012 Analog Devices Inc.
  * Copyright (c) 2016, Linaro Limited
- *
- * Licensed under the GPL-2.
  */
 
 #include <sound/core.h>
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
index c532e9c..0e3e868 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Analog Devices ADV7511 HDMI transmitter driver
  *
  * Copyright 2012 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/device.h>
diff --git a/drivers/i2c/muxes/i2c-mux-ltc4306.c b/drivers/i2c/muxes/i2c-mux-ltc4306.c
index 83a7146..704f1e5 100644
--- a/drivers/i2c/muxes/i2c-mux-ltc4306.c
+++ b/drivers/i2c/muxes/i2c-mux-ltc4306.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Linear Technology LTC4306 and LTC4305 I2C multiplexer/switch
  *
  * Copyright (C) 2017 Analog Devices Inc.
  *
- * Licensed under the GPL-2.
- *
  * Based on: i2c-mux-pca954x.c
  *
  * Datasheet: http://cds.linear.com/docs/en/datasheet/4306.pdf
diff --git a/drivers/iio/accel/st_accel.h b/drivers/iio/accel/st_accel.h
index 9d25955..979ab96 100644
--- a/drivers/iio/accel/st_accel.h
+++ b/drivers/iio/accel/st_accel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * STMicroelectronics accelerometers driver
  *
@@ -5,7 +6,6 @@
  *
  * Denis Ciocca <denis.ciocca@st.com>
  * v. 1.0.0
- * Licensed under the GPL-2.
  */
 
 #ifndef ST_ACCEL_H
diff --git a/drivers/iio/accel/st_accel_buffer.c b/drivers/iio/accel/st_accel_buffer.c
index 7fddc13..54f2ae9 100644
--- a/drivers/iio/accel/st_accel_buffer.c
+++ b/drivers/iio/accel/st_accel_buffer.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics accelerometers driver
  *
  * Copyright 2012-2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/module.h>
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 5ff04d9..e02b799 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics accelerometers driver
  *
  * Copyright 2012-2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c
index 4e54477..c3c8f2e 100644
--- a/drivers/iio/accel/st_accel_i2c.c
+++ b/drivers/iio/accel/st_accel_i2c.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics accelerometers driver
  *
  * Copyright 2012-2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/accel/st_accel_spi.c b/drivers/iio/accel/st_accel_spi.c
index 73bfb5d..474742e 100644
--- a/drivers/iio/accel/st_accel_spi.c
+++ b/drivers/iio/accel/st_accel_spi.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics accelerometers driver
  *
  * Copyright 2012-2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c
index 605eb5e..c31b8ea 100644
--- a/drivers/iio/adc/ad7266.c
+++ b/drivers/iio/adc/ad7266.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD7266/65 SPI ADC driver
  *
  * Copyright 2012 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/device.h>
diff --git a/drivers/iio/adc/ad7298.c b/drivers/iio/adc/ad7298.c
index e022082..dc8d8c5 100644
--- a/drivers/iio/adc/ad7298.c
+++ b/drivers/iio/adc/ad7298.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD7298 SPI ADC driver
  *
  * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/device.h>
diff --git a/drivers/iio/adc/ad7791.c b/drivers/iio/adc/ad7791.c
index a9ff069..54025ea 100644
--- a/drivers/iio/adc/ad7791.c
+++ b/drivers/iio/adc/ad7791.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD7787/AD7788/AD7789/AD7790/AD7791 SPI ADC driver
  *
  * Copyright 2012 Analog Devices Inc.
  *  Author: Lars-Peter Clausen <lars@metafoo.de>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/interrupt.h>
diff --git a/drivers/iio/adc/ad7793.c b/drivers/iio/adc/ad7793.c
index 4ac3ae6..bbc41ec 100644
--- a/drivers/iio/adc/ad7793.c
+++ b/drivers/iio/adc/ad7793.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD7785/AD7792/AD7793/AD7794/AD7795 SPI ADC driver
  *
  * Copyright 2011-2012 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/interrupt.h>
diff --git a/drivers/iio/adc/ad7887.c b/drivers/iio/adc/ad7887.c
index 9d4c246..6223043 100644
--- a/drivers/iio/adc/ad7887.c
+++ b/drivers/iio/adc/ad7887.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD7887 SPI ADC driver
  *
  * Copyright 2010-2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/device.h>
diff --git a/drivers/iio/adc/ad7923.c b/drivers/iio/adc/ad7923.c
index cb7b854..3212eb4 100644
--- a/drivers/iio/adc/ad7923.c
+++ b/drivers/iio/adc/ad7923.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD7904/AD7914/AD7923/AD7924 SPI ADC driver
  *
  * Copyright 2011 Analog Devices Inc (from AD7923 Driver)
  * Copyright 2012 CS Systemes d'Information
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/device.h>
diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
index a431060..1423221 100644
--- a/drivers/iio/adc/ad_sigma_delta.c
+++ b/drivers/iio/adc/ad_sigma_delta.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Support code for Analog Devices Sigma-Delta ADCs
  *
  * Copyright 2012 Analog Devices Inc.
  *  Author: Lars-Peter Clausen <lars@metafoo.de>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/interrupt.h>
diff --git a/drivers/iio/adc/ltc2497.c b/drivers/iio/adc/ltc2497.c
index f1f7cdf..4704060 100644
--- a/drivers/iio/adc/ltc2497.c
+++ b/drivers/iio/adc/ltc2497.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * ltc2497.c - Driver for Analog Devices/Linear Technology LTC2497 ADC
  *
  * Copyright (C) 2017 Analog Devices Inc.
  *
- * Licensed under the GPL-2.
- *
  * Datasheet: http://cds.linear.com/docs/en/datasheet/2497fd.pdf
  */
 
diff --git a/drivers/iio/adc/spear_adc.c b/drivers/iio/adc/spear_adc.c
index b1da2c4..a33d0a4 100644
--- a/drivers/iio/adc/spear_adc.c
+++ b/drivers/iio/adc/spear_adc.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * ST SPEAr ADC driver
  *
  * Copyright 2012 Stefan Roese <sr@denx.de>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/module.h>
diff --git a/drivers/iio/adc/xilinx-xadc-core.c b/drivers/iio/adc/xilinx-xadc-core.c
index 6401ca7..4fd3896 100644
--- a/drivers/iio/adc/xilinx-xadc-core.c
+++ b/drivers/iio/adc/xilinx-xadc-core.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Xilinx XADC driver
  *
  * Copyright 2013-2014 Analog Devices Inc.
  *  Author: Lars-Peter Clauen <lars@metafoo.de>
  *
- * Licensed under the GPL-2.
- *
  * Documentation for the parts can be found at:
  *  - XADC hardmacro: Xilinx UG480
  *  - ZYNQ XADC interface: Xilinx UG585
diff --git a/drivers/iio/adc/xilinx-xadc-events.c b/drivers/iio/adc/xilinx-xadc-events.c
index dc06703..dbfd5da 100644
--- a/drivers/iio/adc/xilinx-xadc-events.c
+++ b/drivers/iio/adc/xilinx-xadc-events.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Xilinx XADC driver
  *
  * Copyright 2013 Analog Devices Inc.
  *  Author: Lars-Peter Clauen <lars@metafoo.de>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/iio/events.h>
diff --git a/drivers/iio/adc/xilinx-xadc.h b/drivers/iio/adc/xilinx-xadc.h
index 8c00095..4017f18 100644
--- a/drivers/iio/adc/xilinx-xadc.h
+++ b/drivers/iio/adc/xilinx-xadc.h
@@ -1,10 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Xilinx XADC driver
  *
  * Copyright 2013 Analog Devices Inc.
  *  Author: Lars-Peter Clauen <lars@metafoo.de>
- *
- * Licensed under the GPL-2.
  */
 
 #ifndef __IIO_XILINX_XADC__
diff --git a/drivers/iio/amplifiers/ad8366.c b/drivers/iio/amplifiers/ad8366.c
index 4b76b61..3d6246f 100644
--- a/drivers/iio/amplifiers/ad8366.c
+++ b/drivers/iio/amplifiers/ad8366.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD8366 SPI Dual-Digital Variable Gain Amplifier (VGA)
  *
  * Copyright 2012 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/device.h>
diff --git a/drivers/iio/buffer/industrialio-buffer-dma.c b/drivers/iio/buffer/industrialio-buffer-dma.c
index b32bf57..90cf6e5 100644
--- a/drivers/iio/buffer/industrialio-buffer-dma.c
+++ b/drivers/iio/buffer/industrialio-buffer-dma.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2013-2015 Analog Devices Inc.
  *  Author: Lars-Peter Clausen <lars@metafoo.de>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/slab.h>
diff --git a/drivers/iio/common/ms_sensors/ms_sensors_i2c.c b/drivers/iio/common/ms_sensors/ms_sensors_i2c.c
index 125b5ff..b52cba1 100644
--- a/drivers/iio/common/ms_sensors/ms_sensors_i2c.c
+++ b/drivers/iio/common/ms_sensors/ms_sensors_i2c.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Measurements Specialties driver common i2c functions
  *
  * Copyright (c) 2015 Measurement-Specialties
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/module.h>
diff --git a/drivers/iio/common/st_sensors/st_sensors_buffer.c b/drivers/iio/common/st_sensors/st_sensors_buffer.c
index df40452..4a68669 100644
--- a/drivers/iio/common/st_sensors/st_sensors_buffer.c
+++ b/drivers/iio/common/st_sensors/st_sensors_buffer.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics sensors buffer library driver
  *
  * Copyright 2012-2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index e50c975..8b22dc2 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics sensors core library driver
  *
  * Copyright 2012-2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/common/st_sensors/st_sensors_i2c.c b/drivers/iio/common/st_sensors/st_sensors_i2c.c
index b81e48e..b1c9812 100644
--- a/drivers/iio/common/st_sensors/st_sensors_i2c.c
+++ b/drivers/iio/common/st_sensors/st_sensors_i2c.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics sensors i2c library driver
  *
  * Copyright 2012-2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/common/st_sensors/st_sensors_spi.c b/drivers/iio/common/st_sensors/st_sensors_spi.c
index 5b37737..2213843f0 100644
--- a/drivers/iio/common/st_sensors/st_sensors_spi.c
+++ b/drivers/iio/common/st_sensors/st_sensors_spi.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics sensors spi library driver
  *
  * Copyright 2012-2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/common/st_sensors/st_sensors_trigger.c b/drivers/iio/common/st_sensors/st_sensors_trigger.c
index 224596b..630c8cb 100644
--- a/drivers/iio/common/st_sensors/st_sensors_trigger.c
+++ b/drivers/iio/common/st_sensors/st_sensors_trigger.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics sensors trigger library driver
  *
  * Copyright 2012-2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c
index 6c3ba14..d33642d 100644
--- a/drivers/iio/dac/ad5064.c
+++ b/drivers/iio/dac/ad5064.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD5024, AD5025, AD5044, AD5045, AD5064, AD5064-1, AD5065, AD5625, AD5625R,
  * AD5627, AD5627R, AD5628, AD5629R, AD5645R, AD5647R, AD5648, AD5665, AD5665R,
@@ -6,8 +7,6 @@
  * Digital to analog converters driver
  *
  * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/device.h>
diff --git a/drivers/iio/dac/ad5360.c b/drivers/iio/dac/ad5360.c
index 0209316..2ac428b 100644
--- a/drivers/iio/dac/ad5360.c
+++ b/drivers/iio/dac/ad5360.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Analog devices AD5360, AD5361, AD5362, AD5363, AD5370, AD5371, AD5373
  * multi-channel Digital to Analog Converters driver
  *
  * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/device.h>
diff --git a/drivers/iio/dac/ad5380.c b/drivers/iio/dac/ad5380.c
index 873c2bf..4335214 100644
--- a/drivers/iio/dac/ad5380.c
+++ b/drivers/iio/dac/ad5380.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Analog devices AD5380, AD5381, AD5382, AD5383, AD5390, AD5391, AD5392
  * multi-channel Digital to Analog Converters driver
  *
  * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/device.h>
diff --git a/drivers/iio/dac/ad5421.c b/drivers/iio/dac/ad5421.c
index 8e9633d..63063e8 100644
--- a/drivers/iio/dac/ad5421.c
+++ b/drivers/iio/dac/ad5421.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD5421 Digital to analog converters  driver
  *
  * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/device.h>
diff --git a/drivers/iio/dac/ad5449.c b/drivers/iio/dac/ad5449.c
index 317a741..fed3eba 100644
--- a/drivers/iio/dac/ad5449.c
+++ b/drivers/iio/dac/ad5449.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD5415, AD5426, AD5429, AD5432, AD5439, AD5443, AD5449 Digital to Analog
  * Converter driver.
  *
  * Copyright 2012 Analog Devices Inc.
  *  Author: Lars-Peter Clausen <lars@metafoo.de>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/device.h>
diff --git a/drivers/iio/dac/ad5504.c b/drivers/iio/dac/ad5504.c
index 0ae23a2..c64e689 100644
--- a/drivers/iio/dac/ad5504.c
+++ b/drivers/iio/dac/ad5504.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD5504, AD5501 High Voltage Digital to Analog Converter
  *
  * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/interrupt.h>
diff --git a/drivers/iio/dac/ad5592r-base.c b/drivers/iio/dac/ad5592r-base.c
index 095530c..2d897e6 100644
--- a/drivers/iio/dac/ad5592r-base.c
+++ b/drivers/iio/dac/ad5592r-base.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD5592R Digital <-> Analog converters driver
  *
  * Copyright 2014-2016 Analog Devices Inc.
  * Author: Paul Cercueil <paul.cercueil@analog.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/bitops.h>
diff --git a/drivers/iio/dac/ad5592r-base.h b/drivers/iio/dac/ad5592r-base.h
index 841457e..4774e4c 100644
--- a/drivers/iio/dac/ad5592r-base.h
+++ b/drivers/iio/dac/ad5592r-base.h
@@ -1,10 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * AD5592R / AD5593R Digital <-> Analog converters driver
  *
  * Copyright 2015-2016 Analog Devices Inc.
  * Author: Paul Cercueil <paul.cercueil@analog.com>
- *
- * Licensed under the GPL-2.
  */
 
 #ifndef __DRIVERS_IIO_DAC_AD5592R_BASE_H__
diff --git a/drivers/iio/dac/ad5592r.c b/drivers/iio/dac/ad5592r.c
index 6a12a3c..34ba059 100644
--- a/drivers/iio/dac/ad5592r.c
+++ b/drivers/iio/dac/ad5592r.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD5592R Digital <-> Analog converters driver
  *
  * Copyright 2015-2016 Analog Devices Inc.
  * Author: Paul Cercueil <paul.cercueil@analog.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include "ad5592r-base.h"
diff --git a/drivers/iio/dac/ad5593r.c b/drivers/iio/dac/ad5593r.c
index fc11ea0..44ea3b8 100644
--- a/drivers/iio/dac/ad5593r.c
+++ b/drivers/iio/dac/ad5593r.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD5593R Digital <-> Analog converters driver
  *
  * Copyright 2015-2016 Analog Devices Inc.
  * Author: Paul Cercueil <paul.cercueil@analog.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include "ad5592r-base.h"
diff --git a/drivers/iio/dac/ad5624r.h b/drivers/iio/dac/ad5624r.h
index 5dca302..13964f3 100644
--- a/drivers/iio/dac/ad5624r.h
+++ b/drivers/iio/dac/ad5624r.h
@@ -1,9 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * AD5624R SPI DAC driver
  *
  * Copyright 2010-2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 #ifndef SPI_AD5624R_H_
 #define SPI_AD5624R_H_
diff --git a/drivers/iio/dac/ad5624r_spi.c b/drivers/iio/dac/ad5624r_spi.c
index 13fdb4d..e6c022e1 100644
--- a/drivers/iio/dac/ad5624r_spi.c
+++ b/drivers/iio/dac/ad5624r_spi.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD5624R, AD5644R, AD5664R Digital to analog convertors spi driver
  *
  * Copyright 2010-2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/interrupt.h>
diff --git a/drivers/iio/dac/ad5755.c b/drivers/iio/dac/ad5755.c
index 2d03cc8..b9175fb 100644
--- a/drivers/iio/dac/ad5755.c
+++ b/drivers/iio/dac/ad5755.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD5755, AD5755-1, AD5757, AD5735, AD5737 Digital to analog converters driver
  *
  * Copyright 2012 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/device.h>
diff --git a/drivers/iio/dac/ad5761.c b/drivers/iio/dac/ad5761.c
index 05017c8..4fb42b7 100644
--- a/drivers/iio/dac/ad5761.c
+++ b/drivers/iio/dac/ad5761.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD5721, AD5721R, AD5761, AD5761R, Voltage Output Digital to Analog Converter
  *
  * Copyright 2016 Qtechnology A/S
  * 2016 Ricardo Ribalda <ricardo.ribalda@gmail.com>
- *
- * Licensed under the GPL-2.
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/drivers/iio/dac/ad5764.c b/drivers/iio/dac/ad5764.c
index 9333177..f7ab211 100644
--- a/drivers/iio/dac/ad5764.c
+++ b/drivers/iio/dac/ad5764.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Analog devices AD5764, AD5764R, AD5744, AD5744R quad-channel
  * Digital to Analog Converters driver
  *
  * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/device.h>
diff --git a/drivers/iio/dac/ad5791.c b/drivers/iio/dac/ad5791.c
index 84ce5e6..1d11f39 100644
--- a/drivers/iio/dac/ad5791.c
+++ b/drivers/iio/dac/ad5791.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD5760, AD5780, AD5781, AD5790, AD5791 Voltage Output Digital to Analog
  * Converter
  *
  * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/interrupt.h>
diff --git a/drivers/iio/dac/ad7303.c b/drivers/iio/dac/ad7303.c
index 8f3bd19..8de9f40 100644
--- a/drivers/iio/dac/ad7303.c
+++ b/drivers/iio/dac/ad7303.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * AD7303 Digital to analog converters driver
  *
  * Copyright 2013 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/err.h>
diff --git a/drivers/iio/dac/ltc2632.c b/drivers/iio/dac/ltc2632.c
index 15d498f..643d1ce 100644
--- a/drivers/iio/dac/ltc2632.c
+++ b/drivers/iio/dac/ltc2632.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * LTC2632 Digital to analog convertors spi driver
  *
  * Copyright 2017 Maxime Roussin-Bélanger
  * expanded by Silvan Murer <silvan.murer@gmail.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/device.h>
diff --git a/drivers/iio/frequency/ad9523.c b/drivers/iio/frequency/ad9523.c
index 9b9eee2..9691524 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 f4748ff..ae0ca09 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>
diff --git a/drivers/iio/gyro/adis16136.c b/drivers/iio/gyro/adis16136.c
index 605eee2..5bec7ad 100644
--- a/drivers/iio/gyro/adis16136.c
+++ b/drivers/iio/gyro/adis16136.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * ADIS16133/ADIS16135/ADIS16136 gyroscope driver
  *
  * Copyright 2012 Analog Devices Inc.
  *   Author: Lars-Peter Clausen <lars@metafoo.de>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/interrupt.h>
diff --git a/drivers/iio/gyro/adxrs450.c b/drivers/iio/gyro/adxrs450.c
index 5d39fd0..b00c0eb 100644
--- a/drivers/iio/gyro/adxrs450.c
+++ b/drivers/iio/gyro/adxrs450.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * ADXRS450/ADXRS453 Digital Output Gyroscope Driver
  *
  * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/interrupt.h>
diff --git a/drivers/iio/gyro/st_gyro.h b/drivers/iio/gyro/st_gyro.h
index 48923ae..460d190 100644
--- a/drivers/iio/gyro/st_gyro.h
+++ b/drivers/iio/gyro/st_gyro.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * STMicroelectronics gyroscopes driver
  *
@@ -5,7 +6,6 @@
  *
  * Denis Ciocca <denis.ciocca@st.com>
  * v. 1.0.0
- * Licensed under the GPL-2.
  */
 
 #ifndef ST_GYRO_H
diff --git a/drivers/iio/gyro/st_gyro_buffer.c b/drivers/iio/gyro/st_gyro_buffer.c
index a537704..6e362f7 100644
--- a/drivers/iio/gyro/st_gyro_buffer.c
+++ b/drivers/iio/gyro/st_gyro_buffer.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics gyroscopes driver
  *
  * Copyright 2012-2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/module.h>
diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c
index b31064b..e995dc7 100644
--- a/drivers/iio/gyro/st_gyro_core.c
+++ b/drivers/iio/gyro/st_gyro_core.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics gyroscopes driver
  *
  * Copyright 2012-2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/gyro/st_gyro_i2c.c b/drivers/iio/gyro/st_gyro_i2c.c
index b405b82b..f2a8683 100644
--- a/drivers/iio/gyro/st_gyro_i2c.c
+++ b/drivers/iio/gyro/st_gyro_i2c.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics gyroscopes driver
  *
  * Copyright 2012-2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/gyro/st_gyro_spi.c b/drivers/iio/gyro/st_gyro_spi.c
index 0b52ed5..93c4824 100644
--- a/drivers/iio/gyro/st_gyro_spi.c
+++ b/drivers/iio/gyro/st_gyro_spi.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics gyroscopes driver
  *
  * Copyright 2012-2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/humidity/hts221.h b/drivers/iio/humidity/hts221.h
index e41a3d8..7d6771f 100644
--- a/drivers/iio/humidity/hts221.h
+++ b/drivers/iio/humidity/hts221.h
@@ -1,11 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * STMicroelectronics hts221 sensor driver
  *
  * Copyright 2016 STMicroelectronics Inc.
  *
  * Lorenzo Bianconi <lorenzo.bianconi@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #ifndef HTS221_H
diff --git a/drivers/iio/humidity/hts221_buffer.c b/drivers/iio/humidity/hts221_buffer.c
index 1a94b0b..81d50a8 100644
--- a/drivers/iio/humidity/hts221_buffer.c
+++ b/drivers/iio/humidity/hts221_buffer.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics hts221 sensor driver
  *
  * Copyright 2016 STMicroelectronics Inc.
  *
  * Lorenzo Bianconi <lorenzo.bianconi@st.com>
- *
- * Licensed under the GPL-2.
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/drivers/iio/humidity/hts221_core.c b/drivers/iio/humidity/hts221_core.c
index 166946d..4922444 100644
--- a/drivers/iio/humidity/hts221_core.c
+++ b/drivers/iio/humidity/hts221_core.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics hts221 sensor driver
  *
  * Copyright 2016 STMicroelectronics Inc.
  *
  * Lorenzo Bianconi <lorenzo.bianconi@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/humidity/hts221_i2c.c b/drivers/iio/humidity/hts221_i2c.c
index b5b3f40..4272b70 100644
--- a/drivers/iio/humidity/hts221_i2c.c
+++ b/drivers/iio/humidity/hts221_i2c.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics hts221 i2c driver
  *
  * Copyright 2016 STMicroelectronics Inc.
  *
  * Lorenzo Bianconi <lorenzo.bianconi@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/humidity/hts221_spi.c b/drivers/iio/humidity/hts221_spi.c
index 9c005f0..055dba8 100644
--- a/drivers/iio/humidity/hts221_spi.c
+++ b/drivers/iio/humidity/hts221_spi.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics hts221 spi driver
  *
  * Copyright 2016 STMicroelectronics Inc.
  *
  * Lorenzo Bianconi <lorenzo.bianconi@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/humidity/htu21.c b/drivers/iio/humidity/htu21.c
index f5a2701..d4c0589 100644
--- a/drivers/iio/humidity/htu21.c
+++ b/drivers/iio/humidity/htu21.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * htu21.c - Support for Measurement-Specialties
  *           htu21 temperature & humidity sensor
@@ -5,8 +6,6 @@
  *
  * Copyright (c) 2014 Measurement-Specialties
  *
- * Licensed under the GPL-2.
- *
  * (7-bit I2C slave address 0x40)
  *
  * Datasheet:
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
index 004a8a1..72f7205 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * STMicroelectronics st_lsm6dsx sensor driver
  *
@@ -5,8 +6,6 @@
  *
  * Lorenzo Bianconi <lorenzo.bianconi@st.com>
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #ifndef ST_LSM6DSX_H
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
index 793598e..e4d8a79 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics st_lsm6dsx FIFO buffer library driver
  *
@@ -26,8 +27,6 @@
  *
  * Lorenzo Bianconi <lorenzo.bianconi@st.com>
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 #include <linux/module.h>
 #include <linux/interrupt.h>
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
index cf82c90..b6edc98 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics st_lsm6dsx sensor driver
  *
@@ -33,8 +34,6 @@
  *
  * Lorenzo Bianconi <lorenzo.bianconi@st.com>
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c
index f543701..966d52a4 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics st_lsm6dsx i2c driver
  *
@@ -5,8 +6,6 @@
  *
  * Lorenzo Bianconi <lorenzo.bianconi@st.com>
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c
index 4a4abb2..24e4e504 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics st_lsm6dsx spi driver
  *
@@ -5,8 +6,6 @@
  *
  * Lorenzo Bianconi <lorenzo.bianconi@st.com>
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/light/st_uvis25.h b/drivers/iio/light/st_uvis25.h
index 5e970ab..78bc56a 100644
--- a/drivers/iio/light/st_uvis25.h
+++ b/drivers/iio/light/st_uvis25.h
@@ -1,11 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * STMicroelectronics uvis25 sensor driver
  *
  * Copyright 2017 STMicroelectronics Inc.
  *
  * Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
- *
- * Licensed under the GPL-2.
  */
 
 #ifndef ST_UVIS25_H
diff --git a/drivers/iio/light/st_uvis25_core.c b/drivers/iio/light/st_uvis25_core.c
index 3026358..d262c25 100644
--- a/drivers/iio/light/st_uvis25_core.c
+++ b/drivers/iio/light/st_uvis25_core.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics uvis25 sensor driver
  *
  * Copyright 2017 STMicroelectronics Inc.
  *
  * Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/light/st_uvis25_i2c.c b/drivers/iio/light/st_uvis25_i2c.c
index afd6eb0..dacbac6 100644
--- a/drivers/iio/light/st_uvis25_i2c.c
+++ b/drivers/iio/light/st_uvis25_i2c.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics uvis25 i2c driver
  *
  * Copyright 2017 STMicroelectronics Inc.
  *
  * Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/light/st_uvis25_spi.c b/drivers/iio/light/st_uvis25_spi.c
index cdfee5e..a9ceae4 100644
--- a/drivers/iio/light/st_uvis25_spi.c
+++ b/drivers/iio/light/st_uvis25_spi.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics uvis25 spi driver
  *
  * Copyright 2017 STMicroelectronics Inc.
  *
  * Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/magnetometer/st_magn.h b/drivers/iio/magnetometer/st_magn.h
index bc14ad4f1..d69ef9b 100644
--- a/drivers/iio/magnetometer/st_magn.h
+++ b/drivers/iio/magnetometer/st_magn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * STMicroelectronics magnetometers driver
  *
@@ -5,7 +6,6 @@
  *
  * Denis Ciocca <denis.ciocca@st.com>
  * v. 1.0.0
- * Licensed under the GPL-2.
  */
 
 #ifndef ST_MAGN_H
diff --git a/drivers/iio/magnetometer/st_magn_buffer.c b/drivers/iio/magnetometer/st_magn_buffer.c
index 37ab305..11d7806 100644
--- a/drivers/iio/magnetometer/st_magn_buffer.c
+++ b/drivers/iio/magnetometer/st_magn_buffer.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics magnetometers driver
  *
  * Copyright 2012-2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/module.h>
diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c
index 5d056bd..2f7a1db 100644
--- a/drivers/iio/magnetometer/st_magn_core.c
+++ b/drivers/iio/magnetometer/st_magn_core.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics magnetometers driver
  *
  * Copyright 2012-2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/magnetometer/st_magn_i2c.c b/drivers/iio/magnetometer/st_magn_i2c.c
index 68650f5..4d014fd 100644
--- a/drivers/iio/magnetometer/st_magn_i2c.c
+++ b/drivers/iio/magnetometer/st_magn_i2c.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics magnetometers driver
  *
  * Copyright 2012-2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/magnetometer/st_magn_spi.c b/drivers/iio/magnetometer/st_magn_spi.c
index cb05fcd..0d470706 100644
--- a/drivers/iio/magnetometer/st_magn_spi.c
+++ b/drivers/iio/magnetometer/st_magn_spi.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics magnetometers driver
  *
  * Copyright 2012-2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/pressure/ms5637.c b/drivers/iio/pressure/ms5637.c
index e2f73e6..f49c700 100644
--- a/drivers/iio/pressure/ms5637.c
+++ b/drivers/iio/pressure/ms5637.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * ms5637.c - Support for Measurement-Specialties MS5637, MS5805
  *            MS5837 and MS8607 pressure & temperature sensor
  *
  * Copyright (c) 2015 Measurement-Specialties
  *
- * Licensed under the GPL-2.
- *
  * (7-bit I2C slave address 0x76)
  *
  * Datasheet:
diff --git a/drivers/iio/pressure/st_pressure.h b/drivers/iio/pressure/st_pressure.h
index 5794660..6a720cf 100644
--- a/drivers/iio/pressure/st_pressure.h
+++ b/drivers/iio/pressure/st_pressure.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * STMicroelectronics pressures driver
  *
@@ -5,7 +6,6 @@
  *
  * Denis Ciocca <denis.ciocca@st.com>
  * v. 1.0.0
- * Licensed under the GPL-2.
  */
 
 #ifndef ST_PRESS_H
diff --git a/drivers/iio/pressure/st_pressure_buffer.c b/drivers/iio/pressure/st_pressure_buffer.c
index 99468d0..4566e08 100644
--- a/drivers/iio/pressure/st_pressure_buffer.c
+++ b/drivers/iio/pressure/st_pressure_buffer.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics pressures driver
  *
  * Copyright 2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/module.h>
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 38dcdb7..b960e76 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics pressures driver
  *
  * Copyright 2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/pressure/st_pressure_i2c.c b/drivers/iio/pressure/st_pressure_i2c.c
index a60849d..b7d9ba7 100644
--- a/drivers/iio/pressure/st_pressure_i2c.c
+++ b/drivers/iio/pressure/st_pressure_i2c.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics pressures driver
  *
  * Copyright 2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/pressure/st_pressure_spi.c b/drivers/iio/pressure/st_pressure_spi.c
index 79a12ed..ef61401 100644
--- a/drivers/iio/pressure/st_pressure_spi.c
+++ b/drivers/iio/pressure/st_pressure_spi.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * STMicroelectronics pressures driver
  *
  * Copyright 2013 STMicroelectronics Inc.
  *
  * Denis Ciocca <denis.ciocca@st.com>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/iio/temperature/tsys01.c b/drivers/iio/temperature/tsys01.c
index 3799d00..d41f050 100644
--- a/drivers/iio/temperature/tsys01.c
+++ b/drivers/iio/temperature/tsys01.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * tsys01.c - Support for Measurement-Specialties tsys01 temperature sensor
  *
  * Copyright (c) 2015 Measurement-Specialties
  *
- * Licensed under the GPL-2.
- *
  * Datasheet:
  *  http://www.meas-spec.com/downloads/TSYS01_Digital_Temperature_Sensor.pdf
  */
diff --git a/drivers/iio/temperature/tsys02d.c b/drivers/iio/temperature/tsys02d.c
index 9b2e56f..6735af4 100644
--- a/drivers/iio/temperature/tsys02d.c
+++ b/drivers/iio/temperature/tsys02d.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * tsys02d.c - Support for Measurement-Specialties tsys02d temperature sensor
  *
  * Copyright (c) 2015 Measurement-Specialties
  *
- * Licensed under the GPL-2.
- *
  * (7-bit I2C slave address 0x40)
  *
  * Datasheet:
diff --git a/drivers/iio/trigger/iio-trig-loop.c b/drivers/iio/trigger/iio-trig-loop.c
index 9258d3c..4a00668 100644
--- a/drivers/iio/trigger/iio-trig-loop.c
+++ b/drivers/iio/trigger/iio-trig-loop.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2016 Jonathan Cameron <jic23@kernel.org>
  *
- * Licensed under the GPL-2.
- *
  * Based on a mashup of the hrtimer trigger and continuous sampling proposal of
  * Gregor Boirie <gregor.boirie@parrot.com>
  *
diff --git a/drivers/iio/trigger/iio-trig-sysfs.c b/drivers/iio/trigger/iio-trig-sysfs.c
index 45c4897..e09e580 100644
--- a/drivers/iio/trigger/iio-trig-sysfs.c
+++ b/drivers/iio/trigger/iio-trig-sysfs.c
@@ -1,8 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2011 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
- *
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/input/keyboard/adp5589-keys.c b/drivers/input/keyboard/adp5589-keys.c
index 2835fba..4c05c70 100644
--- a/drivers/input/keyboard/adp5589-keys.c
+++ b/drivers/input/keyboard/adp5589-keys.c
@@ -1,10 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Description:  keypad driver for ADP5589, ADP5585
  *		 I2C QWERTY Keypad and IO Expander
  * Bugs: Enter bugs at http://blackfin.uclinux.org/
  *
  * Copyright (C) 2010-2011 Analog Devices Inc.
- * Licensed under the GPL-2.
  */
 
 #include <linux/module.h>
diff --git a/drivers/power/supply/adp5061.c b/drivers/power/supply/adp5061.c
index 939fd3d..0035570 100644
--- a/drivers/power/supply/adp5061.c
+++ b/drivers/power/supply/adp5061.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * ADP5061 I2C Programmable Linear Battery Charger
  *
  * Copyright 2018 Analog Devices Inc.
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/init.h>
diff --git a/drivers/spi/spi-axi-spi-engine.c b/drivers/spi/spi-axi-spi-engine.c
index 68cfc35..3b1833e6 100644
--- a/drivers/spi/spi-axi-spi-engine.c
+++ b/drivers/spi/spi-axi-spi-engine.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * SPI-Engine SPI controller driver
  * Copyright 2015 Analog Devices Inc.
  *  Author: Lars-Peter Clausen <lars@metafoo.de>
- *
- * Licensed under the GPL-2.
  */
 
 #include <linux/clk.h>