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Diffstat (limited to 'arch/arm/plat-mxc/include/mach/gpio.h')
-rw-r--r--arch/arm/plat-mxc/include/mach/gpio.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/include/mach/gpio.h b/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 <linux/spinlock.h>
23#include <mach/hardware.h>
24#include <asm-generic/gpio.h>
25
26
27/* There's a off-by-one betweem the gpio bank number and the gpiochip */
28/* range e.g. GPIO_1_5 is gpio 5 under linux */
29#define IMX_GPIO_NR(bank, nr) (((bank) - 1) * 32 + (nr))
30
31/* use gpiolib dispatchers */
32#define gpio_get_value __gpio_get_value
33#define gpio_set_value __gpio_set_value
34#define gpio_cansleep __gpio_cansleep
35
36#define gpio_to_irq(gpio) (MXC_GPIO_IRQ_START + (gpio))
37#define irq_to_gpio(irq) ((irq) - MXC_GPIO_IRQ_START)
38
39#endif