gpio: tps65xxx: Use SPDX license tag

I'm tired of boilerplate, use the SPDX tag.
Acked-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-tps65086.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
  *	Andrew F. Davis <afd@ti.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 "as is" WITHOUT ANY WARRANTY of any
- * kind, whether expressed or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License version 2 for more details.
- *
  * Based on the TPS65912 driver
  */
 

drivers/gpio/gpio-tps6586x.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * TI TPS6586x GPIO driver
  *
@@ -7,18 +8,6 @@
  * Based on tps6586x.c
  * Copyright (c) 2010 CompuLab Ltd.
  * Mike Rapoport <mike@compulab.co.il>
- *
- * 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 <linux/errno.h>

drivers/gpio/gpio-tps65910.c

+// SPDX-License-Identifier: GPL-2.0+
 /*
  * TI TPS6591x GPIO driver
  *
@@ -5,12 +6,6 @@
  *
  * Author: Graeme Gregory <gg@slimlogic.co.uk>
  * Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
- *
- *  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 <linux/kernel.h>

drivers/gpio/gpio-tps65912.c

+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPIO driver for TI TPS65912x PMICs
  *
  * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
  *	Andrew F. Davis <afd@ti.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 "as is" WITHOUT ANY WARRANTY of any
- * kind, whether expressed or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License version 2 for more details.
- *
  * Based on the Arizona GPIO driver and the previous TPS65912 driver by
  * Margarita Olaya Cabrera <magi@slimlogic.co.uk>
  */