linux/arch/arm/plat-mxc/include/mach/gpio.h
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   1/*
   2 * Copyright 2007 Freescale Semiconductor, Inc. All Rights Reserved.
   3 * Copyright 2008 Juergen Beisert, kernel@pengutronix.de
   4 *
   5 * This program is free software; you can redistribute it and/or
   6 * modify it under the terms of the GNU General Public License
   7 * as published by the Free Software Foundation; either version 2
   8 * of the License, or (at your option) any later version.
   9 * This program is distributed in the hope that it will be useful,
  10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 * GNU General Public License for more details.
  13 *
  14 * You should have received a copy of the GNU General Public License
  15 * along with this program; if not, write to the Free Software
  16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  17 */
  18
  19#ifndef __ASM_ARCH_MXC_GPIO_H__
  20#define __ASM_ARCH_MXC_GPIO_H__
  21
  22#include <mach/hardware.h>
  23#include <asm-generic/gpio.h>
  24
  25/* use gpiolib dispatchers */
  26#define gpio_get_value          __gpio_get_value
  27#define gpio_set_value          __gpio_set_value
  28#define gpio_cansleep           __gpio_cansleep
  29
  30#define gpio_to_irq(gpio)       (MXC_GPIO_IRQ_START + (gpio))
  31#define irq_to_gpio(irq)        ((irq) - MXC_GPIO_IRQ_START)
  32
  33struct mxc_gpio_port {
  34        void __iomem *base;
  35        int irq;
  36        int virtual_irq_start;
  37        struct gpio_chip chip;
  38        u32 both_edges;
  39};
  40
  41int mxc_gpio_init(struct mxc_gpio_port*, int);
  42
  43#endif
  44