drivers: add missing SPDX-License-Identifier

This adds the suitable SPDX-License-Identifier to all files in drivers/
that previously lacked one.

To aid manual inspection, following heuristics can be used:

* No changes outside of comments/whitespace:

  git show -U0 HEAD | rg -v '^(@@|diff|index)|[-+]([-+]|//|#|[\s/]\*)'

* -or-later come in pairs:

  git show --inter-hunk-context=19 HEAD | \
    perl -0777 -F'/^@/gm' -ne 'for (@F) { @m = /later/g; print if @m & 1 }'

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.barebox.org/20211030175632.2276077-4-a.fatoum@pengutronix.de
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

7 files changed, 7 insertions, 54 deletions

diff --git a/drivers/led/Kconfig b/drivers/led/Kconfig
index 2a5920a7bd..85999c3875 100644
--- a/drivers/led/Kconfig
+++ b/drivers/led/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menuconfig LED
 	bool "LED support"
 	select POLLER
diff --git a/drivers/led/Makefile b/drivers/led/Makefile
index 35693a7f6b..9bc37d59a5 100644
--- a/drivers/led/Makefile
+++ b/drivers/led/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_LED) += core.o
 obj-$(CONFIG_LED_GPIO) += led-gpio.o
 obj-$(CONFIG_LED_PWM) += led-pwm.o
diff --git a/drivers/led/core.c b/drivers/led/core.c
index ab171c6184..fe79f75571 100644
--- a/drivers/led/core.c
+++ b/drivers/led/core.c
@@ -1,18 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * core LED support for barebox
  *
  * (C) Copyright 2010 Sascha Hauer, Pengutronix
- *
- * 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.
- *
  */
 
 #include <common.h>
diff --git a/drivers/led/led-gpio.c b/drivers/led/led-gpio.c
index 5055b82381..1a5eda0371 100644
--- a/drivers/led/led-gpio.c
+++ b/drivers/led/led-gpio.c
@@ -1,18 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * gpio LED support for barebox
  *
  * (C) Copyright 2010 Sascha Hauer, Pengutronix
- *
- * 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.
- *
  */
 #include <common.h>
 #include <init.h>
diff --git a/drivers/led/led-pca955x.c b/drivers/led/led-pca955x.c
index 07bc26a50b..848feb9773 100644
--- a/drivers/led/led-pca955x.c
+++ b/drivers/led/led-pca955x.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Copyright 2007-2008 Extreme Engineering Solutions, Inc.
  * Author: Nate Case <ncase@xes-inc.com>
@@ -5,16 +6,6 @@
  * Copyright (C) 2018 WAGO Kontakttechnik GmbH & Co. KG <http://global.wago.com>
  * Author: Oleg Karfich <oleg.karfich@wago.com>
  *
- * 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.
- *
  * This code was ported from linux-4.18 kernel driver.
  * Orginal code with it's copyright info can be found in
  * drivers/leds/leds-pca955x.c
diff --git a/drivers/led/led-pwm.c b/drivers/led/led-pwm.c
index 90c2ca929a..071e219d73 100644
--- a/drivers/led/led-pwm.c
+++ b/drivers/led/led-pwm.c
@@ -1,18 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * pwm LED support for barebox
  *
  * (C) Copyright 2010 Sascha Hauer, Pengutronix
- *
- * 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.
- *
  */
 #include <common.h>
 #include <malloc.h>
diff --git a/drivers/led/led-triggers.c b/drivers/led/led-triggers.c
index 07dc622d0f..cba94d5461 100644
--- a/drivers/led/led-triggers.c
+++ b/drivers/led/led-triggers.c
@@ -1,18 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * LED trigger support for barebox
  *
  * (C) Copyright 2010 Sascha Hauer, Pengutronix
- *
- * 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.
- *
  */
 
 #include <common.h>