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>

22 files changed, 22 insertions, 159 deletions

diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 6de9d94672..460a538eed 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Pin controllers"
 
 config PINCTRL
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index e7d8ad8f4b..9073dba571 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_PINCTRL)	+= pinctrl.o
 obj-$(CONFIG_PINCTRL_AT91) += pinctrl-at91.o
 obj-$(CONFIG_PINCTRL_AT91PIO4) += pinctrl-at91-pio4.o
diff --git a/drivers/pinctrl/imx-iomux-v1.c b/drivers/pinctrl/imx-iomux-v1.c
index d48707db7d..e9350c115b 100644
--- a/drivers/pinctrl/imx-iomux-v1.c
+++ b/drivers/pinctrl/imx-iomux-v1.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <common.h>
 #include <io.h>
 #include <init.h>
diff --git a/drivers/pinctrl/imx-iomux-v2.c b/drivers/pinctrl/imx-iomux-v2.c
index b6ffb7508a..35772d13a8 100644
--- a/drivers/pinctrl/imx-iomux-v2.c
+++ b/drivers/pinctrl/imx-iomux-v2.c
@@ -1,17 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  *  (C) 2007, Sascha Hauer <sha@pengutronix.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.
- *
- *
  */
 
 #include <common.h>
diff --git a/drivers/pinctrl/imx-iomux-v3.c b/drivers/pinctrl/imx-iomux-v3.c
index fb2b348883..1ea1899c31 100644
--- a/drivers/pinctrl/imx-iomux-v3.c
+++ b/drivers/pinctrl/imx-iomux-v3.c
@@ -1,17 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * imx-iomux-v3.c - i.MX iomux-v3 pinctrl support
  *
  * Copyright (c) 2013 Sascha Hauer <s.hauer@pengutronix.de>
- *
- * 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>
diff --git a/drivers/pinctrl/mvebu/Makefile b/drivers/pinctrl/mvebu/Makefile
index 6255a5f56d..7377d37927 100644
--- a/drivers/pinctrl/mvebu/Makefile
+++ b/drivers/pinctrl/mvebu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y				+= common.o
 obj-$(CONFIG_ARCH_ARMADA_370)	+= armada-370.o
 obj-$(CONFIG_ARCH_ARMADA_XP)	+= armada-xp.o
diff --git a/drivers/pinctrl/mvebu/armada-370.c b/drivers/pinctrl/mvebu/armada-370.c
index 24ad7f5860..8b574b89b9 100644
--- a/drivers/pinctrl/mvebu/armada-370.c
+++ b/drivers/pinctrl/mvebu/armada-370.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Marvell Armada 370 pinctrl driver based on mvebu pinctrl core
  *
  * Copyright (C) 2012 Marvell
  *
  * Thomas Petazzoni <thomas.petazzoni@free-electrons.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.
  */
 
 #include <common.h>
diff --git a/drivers/pinctrl/mvebu/armada-xp.c b/drivers/pinctrl/mvebu/armada-xp.c
index 25faabdf05..31286c59ee 100644
--- a/drivers/pinctrl/mvebu/armada-xp.c
+++ b/drivers/pinctrl/mvebu/armada-xp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Marvell Armada XP pinctrl driver based on mvebu pinctrl core
  *
@@ -5,11 +6,6 @@
  *
  * Thomas Petazzoni <thomas.petazzoni@free-electrons.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 file supports the three variants of Armada XP SoCs that are
  * available: mv78230, mv78260 and mv78460. From a pin muxing
  * perspective, the mv78230 has 49 MPP pins. The mv78260 and mv78460
diff --git a/drivers/pinctrl/mvebu/common.c b/drivers/pinctrl/mvebu/common.c
index ae16b39268..265e57aaa3 100644
--- a/drivers/pinctrl/mvebu/common.c
+++ b/drivers/pinctrl/mvebu/common.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Marvell MVEBU pinctrl core driver
  *
  * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.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.
  */
 
 #include <common.h>
diff --git a/drivers/pinctrl/mvebu/common.h b/drivers/pinctrl/mvebu/common.h
index 8b3c74852d..079a47679e 100644
--- a/drivers/pinctrl/mvebu/common.h
+++ b/drivers/pinctrl/mvebu/common.h
@@ -1,13 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  * Marvell MVEBU pinctrl driver
  *
  * Authors: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
  *          Thomas Petazzoni <thomas.petazzoni@free-electrons.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.
  */
 
 #ifndef __PINCTRL_MVEBU_H__
diff --git a/drivers/pinctrl/mvebu/dove.c b/drivers/pinctrl/mvebu/dove.c
index e02501d744..49553f1b28 100644
--- a/drivers/pinctrl/mvebu/dove.c
+++ b/drivers/pinctrl/mvebu/dove.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Marvell Dove pinctrl driver based on mvebu pinctrl core
  *
  * Author: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.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.
  */
 
 #include <common.h>
diff --git a/drivers/pinctrl/mvebu/kirkwood.c b/drivers/pinctrl/mvebu/kirkwood.c
index 91bef76270..1df51e443d 100644
--- a/drivers/pinctrl/mvebu/kirkwood.c
+++ b/drivers/pinctrl/mvebu/kirkwood.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Marvell Kirkwood pinctrl driver based on mvebu pinctrl core
  *
  * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.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.
  */
 
 #include <common.h>
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index ad64f7da6d..0295d928cf 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -1,18 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Copyright (C) 2005 HP Labs
  * Copyright (C) 2011-2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
  * Copyright (C) 2014 Raphaël Poggi
- *
- * 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/pinctrl/pinctrl-bcm2835.c b/drivers/pinctrl/pinctrl-bcm2835.c
index 684ead2f8e..933445294f 100644
--- a/drivers/pinctrl/pinctrl-bcm2835.c
+++ b/drivers/pinctrl/pinctrl-bcm2835.c
@@ -1,20 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Author: Carlo Caione <carlo@carlocaione.org>
  *
  * GPIO code based on linux/arch/arm/mach-bcm2708/bcm2708_gpio.c
  *
  * pinctrl part added by Tomaz Solc <tomaz.solc@tablix.org>
- *
- * 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/pinctrl/pinctrl-mxs.c b/drivers/pinctrl/pinctrl-mxs.c
index 7c5d54c9ac..a340f9ac37 100644
--- a/drivers/pinctrl/pinctrl-mxs.c
+++ b/drivers/pinctrl/pinctrl-mxs.c
@@ -1,17 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * pinctrl-mxs.c - MXS pinctrl support
  *
  * Copyright (c) 2015 Sascha Hauer <s.hauer@pengutronix.de>
- *
- * 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>
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 9b832c97d6..4f0951bb28 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Rockchip pinctrl and gpio driver for Barebox
  *
@@ -8,15 +9,6 @@
  *   Copyright (C) 2012 Samsung Electronics Co., Ltd.
  *   Copyright (C) 2012 Linaro Ltd
  *   Copyright (C) 2011-2012 Jean-Christophe PLAGNIOL-VILLARD
- *
- * 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>
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index cf2f724d18..66e75bb01b 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * pinctrl-single - Generic device tree based pinctrl driver for one
  *                  register per pin type pinmux controllers
  *
  * Copyright (c) 2013 Sascha Hauer <s.hauer@pengutronix.de>
- *
- * 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>
diff --git a/drivers/pinctrl/pinctrl-tegra-xusb.c b/drivers/pinctrl/pinctrl-tegra-xusb.c
index 37d77e5ef6..6ec67297e0 100644
--- a/drivers/pinctrl/pinctrl-tegra-xusb.c
+++ b/drivers/pinctrl/pinctrl-tegra-xusb.c
@@ -1,20 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2014 Lucas Stach <l.stach@pengutronix.de>
  *
  * Partly based on code
  * Copyright (C) 2014, NVIDIA CORPORATION.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
  */
 
 #include <common.h>
diff --git a/drivers/pinctrl/pinctrl-tegra20.c b/drivers/pinctrl/pinctrl-tegra20.c
index 256aea1860..e6dee7533e 100644
--- a/drivers/pinctrl/pinctrl-tegra20.c
+++ b/drivers/pinctrl/pinctrl-tegra20.c
@@ -1,21 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2013 Lucas Stach <l.stach@pengutronix.de>
  *
  * Partly based on code
  * Copyright (C) 2011-2012 NVIDIA Corporation <www.nvidia.com>
  * Copyright (C) 2010 Google, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
  */
 
 /**
diff --git a/drivers/pinctrl/pinctrl-tegra30.c b/drivers/pinctrl/pinctrl-tegra30.c
index e9f35e0c9d..f687609551 100644
--- a/drivers/pinctrl/pinctrl-tegra30.c
+++ b/drivers/pinctrl/pinctrl-tegra30.c
@@ -1,20 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2014 Lucas Stach <l.stach@pengutronix.de>
  *
  * Partly based on code
  * Copyright (C) 2011-2012, NVIDIA CORPORATION.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
  */
 
 #include <common.h>
diff --git a/drivers/pinctrl/pinctrl-vf610.c b/drivers/pinctrl/pinctrl-vf610.c
index 02dea60ac2..4ca610f38c 100644
--- a/drivers/pinctrl/pinctrl-vf610.c
+++ b/drivers/pinctrl/pinctrl-vf610.c
@@ -1,16 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2016 Zodiac Inflight Innovation
  * Author: Andrey Smirnov <andrew.smirnov@gmail.com>
- *
- * 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>
diff --git a/drivers/pinctrl/pinctrl.c b/drivers/pinctrl/pinctrl.c
index 7e88391ff3..caf15df448 100644
--- a/drivers/pinctrl/pinctrl.c
+++ b/drivers/pinctrl/pinctrl.c
@@ -1,17 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * pinctrl.c - barebox pinctrl support
  *
  * Copyright (c) 2013 Sascha Hauer <s.hauer@pengutronix.de>
- *
- * 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>