linux/include/linux/acpi_gpio.h
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   1#ifndef _LINUX_ACPI_GPIO_H_
   2#define _LINUX_ACPI_GPIO_H_
   3
   4#include <linux/errno.h>
   5
   6#ifdef CONFIG_GPIO_ACPI
   7
   8int acpi_get_gpio(char *path, int pin);
   9
  10#else /* CONFIG_GPIO_ACPI */
  11
  12static inline int acpi_get_gpio(char *path, int pin)
  13{
  14        return -ENODEV;
  15}
  16
  17#endif /* CONFIG_GPIO_ACPI */
  18
  19#endif /* _LINUX_ACPI_GPIO_H_ */
  20
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