include/asm-generic/gpio.h

   1 #ifndef _ASM_GENERIC_GPIO_H
   2 #define _ASM_GENERIC_GPIO_H
   3
   4 /* platforms that don't directly support access to GPIOs through I2C, SPI,
   5  * or other blocking infrastructure can use these wrappers.
   6  */
   7
   8 static inline int gpio_cansleep(unsigned gpio)
   9 {
  10         return 0;
  11 }
  12
  13 static inline int gpio_get_value_cansleep(unsigned gpio)
  14 {
  15         might_sleep();
  16         return gpio_get_value(gpio);
  17 }
  18
  19 static inline void gpio_set_value_cansleep(unsigned gpio, int value)
  20 {
  21         might_sleep();
  22         gpio_set_value(gpio, value);
  23 }
  24
  25 #endif /* _ASM_GENERIC_GPIO_H */