https://github.com/torvalds/linux
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Tip revision: bbf25010f1a6b761914430f5fca081ec8c7accd1 authored by Linus Torvalds on 09 October 2007, 20:31:38 UTC
Linux 2.6.23
Tip revision: bbf2501
gpio.h
#ifndef _ASM_GENERIC_GPIO_H
#define _ASM_GENERIC_GPIO_H

/* platforms that don't directly support access to GPIOs through I2C, SPI,
 * or other blocking infrastructure can use these wrappers.
 */

static inline int gpio_cansleep(unsigned gpio)
{
	return 0;
}

static inline int gpio_get_value_cansleep(unsigned gpio)
{
	might_sleep();
	return gpio_get_value(gpio);
}

static inline void gpio_set_value_cansleep(unsigned gpio, int value)
{
	might_sleep();
	gpio_set_value(gpio, value);
}

#endif /* _ASM_GENERIC_GPIO_H */
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