forked from luck/tmp_suning_uos_patched
b7ce341585
This implements support for the GPIO LIB API. Two calls are still unimplemented though: irq_to_gpio and gpio_to_irq. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
/*
|
|
* Generic GPIO API implementation for PowerPC.
|
|
*
|
|
* Copyright (c) 2007-2008 MontaVista Software, Inc.
|
|
*
|
|
* Author: Anton Vorontsov <avorontsov@ru.mvista.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 __ASM_POWERPC_GPIO_H
|
|
#define __ASM_POWERPC_GPIO_H
|
|
|
|
#include <linux/errno.h>
|
|
#include <asm-generic/gpio.h>
|
|
|
|
#ifdef CONFIG_HAVE_GPIO_LIB
|
|
|
|
/*
|
|
* We don't (yet) implement inlined/rapid versions for on-chip gpios.
|
|
* Just call gpiolib.
|
|
*/
|
|
static inline int gpio_get_value(unsigned int gpio)
|
|
{
|
|
return __gpio_get_value(gpio);
|
|
}
|
|
|
|
static inline void gpio_set_value(unsigned int gpio, int value)
|
|
{
|
|
__gpio_set_value(gpio, value);
|
|
}
|
|
|
|
static inline int gpio_cansleep(unsigned int gpio)
|
|
{
|
|
return __gpio_cansleep(gpio);
|
|
}
|
|
|
|
/*
|
|
* Not implemented, yet.
|
|
*/
|
|
static inline int gpio_to_irq(unsigned int gpio)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int irq_to_gpio(unsigned int irq)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
#endif /* CONFIG_HAVE_GPIO_LIB */
|
|
|
|
#endif /* __ASM_POWERPC_GPIO_H */
|