SPDX: Convert all of our single license tags to Linux Kernel style

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>

48 files changed, 48 insertions, 94 deletions

diff --git a/drivers/gpio/74x164_gpio.c b/drivers/gpio/74x164_gpio.c
index eb2c0b6..dcb1c1b 100644
--- a/drivers/gpio/74x164_gpio.c
+++ b/drivers/gpio/74x164_gpio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Take drivers/gpio/gpio-74x164.c as reference.
  *
@@ -5,8 +6,6 @@
  *
  * Copyright (C) 2016 Peng Fan <van.freenix@gmail.com>
  *
- * SPDX-License-Identifier:	GPL-2.0+
- *
  */
 
 #include <common.h>
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 266c958..f186120 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -1,9 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Copyright 2000-2008
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
 
 ifndef CONFIG_SPL_BUILD
 obj-$(CONFIG_DWAPB_GPIO)	+= dwapb_gpio.o
diff --git a/drivers/gpio/altera_pio.c b/drivers/gpio/altera_pio.c
index d17245a..59e3097 100644
--- a/drivers/gpio/altera_pio.c
+++ b/drivers/gpio/altera_pio.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015  Thomas Chou <thomas@wytron.com.tw>
  * Copyright (C) 2011  Missing Link Electronics
  *                     Joachim Foerster <joachim@missinglinkelectronics.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 #include <common.h>
 #include <dm.h>
diff --git a/drivers/gpio/at91_gpio.c b/drivers/gpio/at91_gpio.c
index 174d561..965becf 100644
--- a/drivers/gpio/at91_gpio.c
+++ b/drivers/gpio/at91_gpio.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2013 Bo Shen <voice.shen@atmel.com>
  *
  * Copyright (C) 2009 Jens Scharsig (js_at_ng@scharsoft.de)
  *
  *  Copyright (C) 2005 HP Labs
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <config.h>
diff --git a/drivers/gpio/atmel_pio4.c b/drivers/gpio/atmel_pio4.c
index 30bc429..2385dec 100644
--- a/drivers/gpio/atmel_pio4.c
+++ b/drivers/gpio/atmel_pio4.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Atmel PIO4 device driver
  *
  * Copyright (C) 2015 Atmel Corporation
  *		 Wenyou.Yang <wenyou.yang@atmel.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 #include <common.h>
 #include <clk.h>
diff --git a/drivers/gpio/axp_gpio.c b/drivers/gpio/axp_gpio.c
index ec00827..73058cf 100644
--- a/drivers/gpio/axp_gpio.c
+++ b/drivers/gpio/axp_gpio.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2015 Hans de Goede <hdegoede@redhat.com>
  *
  * X-Powers AXP Power Management ICs gpio driver
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/bcm2835_gpio.c b/drivers/gpio/bcm2835_gpio.c
index d68f8df..f4b67f1 100644
--- a/drivers/gpio/bcm2835_gpio.c
+++ b/drivers/gpio/bcm2835_gpio.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2012 Vikram Narayananan
  * <vikram186@gmail.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/bcm6345_gpio.c b/drivers/gpio/bcm6345_gpio.c
index b9100cd..1a507fc 100644
--- a/drivers/gpio/bcm6345_gpio.c
+++ b/drivers/gpio/bcm6345_gpio.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2017 Álvaro Fernández Rojas <noltari@gmail.com>
  *
  * Derived from linux/arch/mips/bcm63xx/gpio.c:
  *	Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
  *	Copyright (C) 2008-2011 Florian Fainelli <florian@openwrt.org>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/da8xx_gpio.c b/drivers/gpio/da8xx_gpio.c
index fa3a394..e410f5f 100644
--- a/drivers/gpio/da8xx_gpio.c
+++ b/drivers/gpio/da8xx_gpio.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * GPIO driver for TI DaVinci DA8xx SOCs.
  *
  * (C) Copyright 2011 Guralp Systems Ltd.
  * Laurence Withers <lwithers@guralp.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/dwapb_gpio.c b/drivers/gpio/dwapb_gpio.c
index 7d1904c..a118f58 100644
--- a/drivers/gpio/dwapb_gpio.c
+++ b/drivers/gpio/dwapb_gpio.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2015 Marek Vasut <marex@denx.de>
  *
  * DesignWare APB GPIO driver
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index de3320d..b46621f 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2017 Marek Vasut <marek.vasut@gmail.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/gpio-uclass.c b/drivers/gpio/gpio-uclass.c
index 1fbfdef..e9d08e2 100644
--- a/drivers/gpio/gpio-uclass.c
+++ b/drivers/gpio/gpio-uclass.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2013 Google, Inc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/gpio-uniphier.c b/drivers/gpio/gpio-uniphier.c
index 8d72ab8..30392bc 100644
--- a/drivers/gpio/gpio-uniphier.c
+++ b/drivers/gpio/gpio-uniphier.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016-2017 Socionext Inc.
  *   Author: Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/hi6220_gpio.c b/drivers/gpio/hi6220_gpio.c
index 3f41bff..97a0417 100644
--- a/drivers/gpio/hi6220_gpio.c
+++ b/drivers/gpio/hi6220_gpio.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015 Linaro
  * Peter Griffin <peter.griffin@linaro.org>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/imx_rgpio2p.c b/drivers/gpio/imx_rgpio2p.c
index 0de74cb..1e876f6 100644
--- a/drivers/gpio/imx_rgpio2p.c
+++ b/drivers/gpio/imx_rgpio2p.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2016 Freescale Semiconductor, Inc.
  *
  * RGPIO2P driver for the Freescale i.MX7ULP.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/intel_broadwell_gpio.c b/drivers/gpio/intel_broadwell_gpio.c
index 790577a..37299ec 100644
--- a/drivers/gpio/intel_broadwell_gpio.c
+++ b/drivers/gpio/intel_broadwell_gpio.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2012 The Chromium OS Authors.
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/intel_ich6_gpio.c b/drivers/gpio/intel_ich6_gpio.c
index ffc3ccb..ad08b3a 100644
--- a/drivers/gpio/intel_ich6_gpio.c
+++ b/drivers/gpio/intel_ich6_gpio.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2012 The Chromium OS Authors.
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*
diff --git a/drivers/gpio/kona_gpio.c b/drivers/gpio/kona_gpio.c
index 6511743..912a4ca 100644
--- a/drivers/gpio/kona_gpio.c
+++ b/drivers/gpio/kona_gpio.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2013 Broadcom Corporation.
- *
- * SPDX-License-Identifier:      GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/kw_gpio.c b/drivers/gpio/kw_gpio.c
index cc26cc1..a157697 100644
--- a/drivers/gpio/kw_gpio.c
+++ b/drivers/gpio/kw_gpio.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * arch/arm/plat-orion/gpio.c
  *
  * Marvell Orion SoC GPIO handling.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*
diff --git a/drivers/gpio/lpc32xx_gpio.c b/drivers/gpio/lpc32xx_gpio.c
index 292fc74..1265ee4 100644
--- a/drivers/gpio/lpc32xx_gpio.c
+++ b/drivers/gpio/lpc32xx_gpio.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * LPC32xxGPIO driver
  *
  * (C) Copyright 2014  DENX Software Engineering GmbH
  * Written-by: Albert ARIBAUD <albert.aribaud@3adev.fr>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/mpc83xx_gpio.c b/drivers/gpio/mpc83xx_gpio.c
index 92b6e0c..dcd78e7 100644
--- a/drivers/gpio/mpc83xx_gpio.c
+++ b/drivers/gpio/mpc83xx_gpio.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Freescale MPC83xx GPIO handling.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/mpc8xxx_gpio.c b/drivers/gpio/mpc8xxx_gpio.c
index c7acf11..c273c2c 100644
--- a/drivers/gpio/mpc8xxx_gpio.c
+++ b/drivers/gpio/mpc8xxx_gpio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2016
  * Mario Six, Guntermann & Drunck GmbH, mario.six@gdsys.cc
@@ -5,8 +6,6 @@
  * based on arch/powerpc/include/asm/mpc85xx_gpio.h, which is
  *
  * Copyright 2010 eXMeritus, A Boeing Company
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/msm_gpio.c b/drivers/gpio/msm_gpio.c
index ff38fc5..ac5d20c 100644
--- a/drivers/gpio/msm_gpio.c
+++ b/drivers/gpio/msm_gpio.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Qualcomm GPIO driver
  *
  * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/mvebu_gpio.c b/drivers/gpio/mvebu_gpio.c
index 79942ff..e8b1c59 100644
--- a/drivers/gpio/mvebu_gpio.c
+++ b/drivers/gpio/mvebu_gpio.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2016 Stefan Roese <sr@denx.de>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/mvgpio.c b/drivers/gpio/mvgpio.c
index 407385b..ea2f689 100644
--- a/drivers/gpio/mvgpio.c
+++ b/drivers/gpio/mvgpio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2011
  * eInfochips Ltd. <www.einfochips.com>
@@ -5,8 +6,6 @@
  *
  * (C) Copyright 2010
  * Marvell Semiconductor <www.marvell.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/mvgpio.h b/drivers/gpio/mvgpio.h
index 1eb7acd..d68c48e 100644
--- a/drivers/gpio/mvgpio.h
+++ b/drivers/gpio/mvgpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2011
  * eInfochips Ltd. <www.einfochips.com>
@@ -5,8 +6,6 @@
  *
  * (C) Copyright 2010
  * Marvell Semiconductor <www.marvell.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __MVGPIO_H__
diff --git a/drivers/gpio/mvmfp.c b/drivers/gpio/mvmfp.c
index 43ecf66..511042c 100644
--- a/drivers/gpio/mvmfp.c
+++ b/drivers/gpio/mvmfp.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2010
  * Marvell Semiconductor <www.marvell.com>
  * Written-by: Prafulla Wadaskar <prafulla@marvell.com>,
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/mxc_gpio.c b/drivers/gpio/mxc_gpio.c
index c6427d7..d8e72ad 100644
--- a/drivers/gpio/mxc_gpio.c
+++ b/drivers/gpio/mxc_gpio.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2009
  * Guennadi Liakhovetski, DENX Software Engineering, <lg@denx.de>
  *
  * Copyright (C) 2011
  * Stefano Babic, DENX Software Engineering, <sbabic@denx.de>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 #include <common.h>
 #include <errno.h>
diff --git a/drivers/gpio/mxs_gpio.c b/drivers/gpio/mxs_gpio.c
index 367b852..c2c8a25 100644
--- a/drivers/gpio/mxs_gpio.c
+++ b/drivers/gpio/mxs_gpio.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Freescale i.MX28 GPIO control code
  *
  * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
  * on behalf of DENX Software Engineering GmbH
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/omap_gpio.c b/drivers/gpio/omap_gpio.c
index 559f29b..d128f94 100644
--- a/drivers/gpio/omap_gpio.c
+++ b/drivers/gpio/omap_gpio.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2009 Wind River Systems, Inc.
  * Tom Rix <Tom.Rix@windriver.com>
  *
- * SPDX-License-Identifier:	GPL-2.0
- *
  * This work is derived from the linux 2.6.27 kernel source
  * To fetch, use the kernel repository
  * git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c
index 10a105d..fda8054 100644
--- a/drivers/gpio/pca953x.c
+++ b/drivers/gpio/pca953x.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright 2008 Extreme Engineering Solutions, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0
  */
 
 /*
diff --git a/drivers/gpio/pca953x_gpio.c b/drivers/gpio/pca953x_gpio.c
index 08742f9..535b2f1 100644
--- a/drivers/gpio/pca953x_gpio.c
+++ b/drivers/gpio/pca953x_gpio.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Take linux kernel driver drivers/gpio/gpio-pca953x.c for reference.
  *
  * Copyright (C) 2016 Peng Fan <van.freenix@gmail.com>
  *
- * SPDX-License-Identifier:	GPL-2.0+
- *
  */
 
 /*
diff --git a/drivers/gpio/pca9698.c b/drivers/gpio/pca9698.c
index 3995c49..ab0c4c1 100644
--- a/drivers/gpio/pca9698.c
+++ b/drivers/gpio/pca9698.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2011
  * Dirk Eibach,  Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*
diff --git a/drivers/gpio/pcf8575_gpio.c b/drivers/gpio/pcf8575_gpio.c
index 2cbb9e6..e93f640 100644
--- a/drivers/gpio/pcf8575_gpio.c
+++ b/drivers/gpio/pcf8575_gpio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PCF8575 I2C GPIO EXPANDER DRIVER
  *
@@ -5,8 +6,6 @@
  *
  * Vignesh R <vigneshr@ti.com>
  *
- * SPDX-License-Identifier:	GPL-2.0
- *
  *
  * Driver for TI PCF-8575 16-bit I2C gpio expander. Based on
  * gpio-pcf857x Linux Kernel(v4.7) driver.
diff --git a/drivers/gpio/pic32_gpio.c b/drivers/gpio/pic32_gpio.c
index e838ad4..d8789e7 100644
--- a/drivers/gpio/pic32_gpio.c
+++ b/drivers/gpio/pic32_gpio.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2015 Microchip Technology Inc
  * Purna Chandra Mandal <purna.mandal@microchip.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/pm8916_gpio.c b/drivers/gpio/pm8916_gpio.c
index 3b6de9d..bbe214d 100644
--- a/drivers/gpio/pm8916_gpio.c
+++ b/drivers/gpio/pm8916_gpio.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Qualcomm pm8916 pmic gpio driver - part of Qualcomm PM8916 PMIC
  *
  * (C) Copyright 2015 Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/rk_gpio.c b/drivers/gpio/rk_gpio.c
index 2419636..a8f311b 100644
--- a/drivers/gpio/rk_gpio.c
+++ b/drivers/gpio/rk_gpio.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2015 Google, Inc
  *
  * (C) Copyright 2008-2014 Rockchip Electronics
  * Peter, Software Engineering, <superpeter.cai@gmail.com>.
- *
- * SPDX-License-Identifier:     GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/s5p_gpio.c b/drivers/gpio/s5p_gpio.c
index 5c894a2..e4b5383 100644
--- a/drivers/gpio/s5p_gpio.c
+++ b/drivers/gpio/s5p_gpio.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2009 Samsung Electronics
  * Minkyu Kang <mk7.kang@samsung.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/sandbox.c b/drivers/gpio/sandbox.c
index 02f2a24..2ef5c67 100644
--- a/drivers/gpio/sandbox.c
+++ b/drivers/gpio/sandbox.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2011 The Chromium OS Authors.
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/spear_gpio.c b/drivers/gpio/spear_gpio.c
index 6fb4117..525aa3b 100644
--- a/drivers/gpio/spear_gpio.c
+++ b/drivers/gpio/spear_gpio.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2012 Stefan Roese <sr@denx.de>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*
diff --git a/drivers/gpio/stm32f7_gpio.c b/drivers/gpio/stm32f7_gpio.c
index 376e86c..5b08e7e 100644
--- a/drivers/gpio/stm32f7_gpio.c
+++ b/drivers/gpio/stm32f7_gpio.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
  * Author(s): Vikas Manocha, <vikas.manocha@st.com> for STMicroelectronics.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/sunxi_gpio.c b/drivers/gpio/sunxi_gpio.c
index 706afce..cbed8d4 100644
--- a/drivers/gpio/sunxi_gpio.c
+++ b/drivers/gpio/sunxi_gpio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2012 Henrik Nordstrom <henrik@henriknordstrom.net>
  *
@@ -6,8 +7,6 @@
  * (C) Copyright 2007-2011
  * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
  * Tom Cubie <tangliang@allwinnertech.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/tegra186_gpio.c b/drivers/gpio/tegra186_gpio.c
index 6d610ef..1f0e8d5 100644
--- a/drivers/gpio/tegra186_gpio.c
+++ b/drivers/gpio/tegra186_gpio.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2010-2016, NVIDIA CORPORATION.
  * (based on tegra_gpio.c)
- *
- * SPDX-License-Identifier: GPL-2.0
  */
 
 #include <common.h>
diff --git a/drivers/gpio/tegra186_gpio_priv.h b/drivers/gpio/tegra186_gpio_priv.h
index 9e85a434..ac8df27 100644
--- a/drivers/gpio/tegra186_gpio_priv.h
+++ b/drivers/gpio/tegra186_gpio_priv.h
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (c) 2016, NVIDIA CORPORATION.
- *
- * SPDX-License-Identifier: GPL-2.0
  */
 
 #ifndef _TEGRA186_GPIO_PRIV_H_
diff --git a/drivers/gpio/tegra_gpio.c b/drivers/gpio/tegra_gpio.c
index faf950e..302efdd 100644
--- a/drivers/gpio/tegra_gpio.c
+++ b/drivers/gpio/tegra_gpio.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * NVIDIA Tegra20 GPIO handling.
  *  (C) Copyright 2010-2012,2015
  *  NVIDIA Corporation <www.nvidia.com>
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 /*
diff --git a/drivers/gpio/vybrid_gpio.c b/drivers/gpio/vybrid_gpio.c
index 030e8d0..d2c1d7d 100644
--- a/drivers/gpio/vybrid_gpio.c
+++ b/drivers/gpio/vybrid_gpio.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015
  * Bhuvanchandra DV, Toradex, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/xilinx_gpio.c b/drivers/gpio/xilinx_gpio.c
index 949fd96..74c5be0 100644
--- a/drivers/gpio/xilinx_gpio.c
+++ b/drivers/gpio/xilinx_gpio.c
@@ -1,7 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2013 Xilinx, Michal Simek
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>
diff --git a/drivers/gpio/zynq_gpio.c b/drivers/gpio/zynq_gpio.c
index 4cb75a8..9663294 100644
--- a/drivers/gpio/zynq_gpio.c
+++ b/drivers/gpio/zynq_gpio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Xilinx Zynq GPIO device driver
  *
@@ -5,8 +6,6 @@
  *
  * Most of code taken from linux kernel driver (linux/drivers/gpio/gpio-zynq.c)
  * Copyright (C) 2009 - 2014 Xilinx, Inc.
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <common.h>