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>

8 files changed, 8 insertions, 50 deletions

diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 9be81832f2..4e05d8f488 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menuconfig REGULATOR
 	bool "voltage regulator support"
 
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 67859bb79e..9580bcb5ca 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_REGULATOR) += core.o helpers.o
 obj-$(CONFIG_OFDEVICE) += of_regulator.o
 obj-$(CONFIG_REGULATOR_FIXED) += fixed.o
diff --git a/drivers/regulator/anatop-regulator.c b/drivers/regulator/anatop-regulator.c
index 917f7e8fdd..3f8473ec07 100644
--- a/drivers/regulator/anatop-regulator.c
+++ b/drivers/regulator/anatop-regulator.c
@@ -1,23 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved.
  */
 
-/*
- * 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.
-
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
 #include <common.h>
 #include <init.h>
 #include <mfd/syscon.h>
diff --git a/drivers/regulator/bcm2835.c b/drivers/regulator/bcm2835.c
index 6423b8a834..3351e6d2f3 100644
--- a/drivers/regulator/bcm2835.c
+++ b/drivers/regulator/bcm2835.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * bcm2835 regulator support
  *
  * Copyright (c) 2015 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
- *
- * GPLv2 Only
  */
 #include <common.h>
 #include <malloc.h>
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 097f7d779b..a9e25753fe 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1,17 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * barebox regulator support
  *
  * Copyright (c) 2014 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * 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 <regulator.h>
diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c
index e35b294fb2..e6a85c46f4 100644
--- a/drivers/regulator/fixed.c
+++ b/drivers/regulator/fixed.c
@@ -1,17 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * fixed regulator support
  *
  * Copyright (c) 2014 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * 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/regulator/helpers.c b/drivers/regulator/helpers.c
index e741944ce7..06cccbeeca 100644
--- a/drivers/regulator/helpers.c
+++ b/drivers/regulator/helpers.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <common.h>
 #include <regmap.h>
 #include <regulator.h>
diff --git a/drivers/regulator/pfuze.c b/drivers/regulator/pfuze.c
index 1983ec91f6..5ef5dacc6f 100644
--- a/drivers/regulator/pfuze.c
+++ b/drivers/regulator/pfuze.c
@@ -1,17 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Copyright (C) 2017 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>