mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-12 16:07:30 +00:00
dcee1ab320
Add gpio_is_valid() to omap_gpio API Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/*
|
|
* Copyright (c) 2009 Wind River Systems, Inc.
|
|
* Tom Rix <Tom.Rix@windriver.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 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., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*
|
|
* This work is derived from the linux 2.6.27 kernel source
|
|
* To fetch, use the kernel repository
|
|
* git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
|
|
* Use the v2.6.27 tag.
|
|
*
|
|
* Below is the original's header including its copyright
|
|
*
|
|
* linux/arch/arm/plat-omap/gpio.c
|
|
*
|
|
* Support functions for OMAP GPIO
|
|
*
|
|
* Copyright (C) 2003-2005 Nokia Corporation
|
|
* Written by Juha Yrjölä <juha.yrjola@nokia.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.
|
|
*/
|
|
#ifndef _GPIO_H
|
|
#define _GPIO_H
|
|
|
|
#include <asm/arch/cpu.h>
|
|
|
|
struct gpio_bank {
|
|
void *base;
|
|
int method;
|
|
};
|
|
|
|
extern const struct gpio_bank *const omap_gpio_bank;
|
|
|
|
#define METHOD_GPIO_24XX 4
|
|
|
|
/**
|
|
* Check if gpio is valid.
|
|
*
|
|
* @param gpio GPIO number
|
|
* @return 1 if ok, 0 on error
|
|
*/
|
|
int gpio_is_valid(int gpio);
|
|
#endif /* _GPIO_H_ */
|