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[MIPS] make fallback gpio.h gpiolib-friendly 

If gpiolib was selected, asm-generic/gpio.h provides some prototypes
for gpio API and implementation helpers.  With this patch, platform
code can implement its GPIO API using gpiolib without custom gpio.h
file.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Atsushi Nemoto 2008-04-05 00:55:24 +09:00 committed by Ralf Baechle
parent 46684734dd
commit 8aa62adafa
1 changed files with 6 additions and 0 deletions
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6
include/asm-mips/mach-generic/gpio.h
View File

@ -1,12 +1,18 @@
#ifndef __ASM_MACH_GENERIC_GPIO_H
#define __ASM_MACH_GENERIC_GPIO_H
#ifdef CONFIG_HAVE_GPIO_LIB
#define gpio_get_value __gpio_get_value
#define gpio_set_value __gpio_set_value
#define gpio_cansleep __gpio_cansleep
#else
int gpio_request(unsigned gpio, const char *label);
void gpio_free(unsigned gpio);
int gpio_direction_input(unsigned gpio);
int gpio_direction_output(unsigned gpio, int value);
int gpio_get_value(unsigned gpio);
void gpio_set_value(unsigned gpio, int value);
#endif
int gpio_to_irq(unsigned gpio);
int irq_to_gpio(unsigned irq);