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gpiolib: add missing functions to generic fallback

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Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Greg KH <gregkh@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Wolfram Sang 2011-01-12 17:00:24 -08:00 committed by Linus Torvalds
parent 0fdae42d36
commit 5f829e405e
1 changed files with 20 additions and 0 deletions
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20
include/linux/gpio.h
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@ -13,6 +13,7 @@
#include <linux/errno.h>
struct device;
struct gpio;
struct gpio_chip;
/*
@ -34,6 +35,17 @@ static inline int __must_check gpio_request(unsigned gpio, const char *label)
return -ENOSYS;
}
static inline int __must_check gpio_request_one(unsigned gpio,
unsigned long flags, const char *label)
{
return -ENOSYS;
}
static inline int __must_check gpio_request_array(struct gpio *array, size_t num)
{
return -ENOSYS;
}
static inline void gpio_free(unsigned gpio)
{
might_sleep();
@ -42,6 +54,14 @@ static inline void gpio_free(unsigned gpio)
WARN_ON(1);
}
static inline void gpio_free_array(struct gpio *array, size_t num)
{
might_sleep();
/* GPIO can never have been requested */
WARN_ON(1);
}
static inline int __must_check gpio_direction_input(unsigned gpio)
{
return -ENOSYS;