LXR linux/drivers/gpio/gpiolib-of.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2
   3#ifndef GPIOLIB_OF_H
   4#define GPIOLIB_OF_H
   5
   6struct gpio_chip;
   7enum of_gpio_flags;
   8
   9#ifdef CONFIG_OF_GPIO
  10struct gpio_desc *of_find_gpio(struct device *dev,
  11                               const char *con_id,
  12                               unsigned int idx,
  13                               unsigned long *lookupflags);
  14int of_gpiochip_add(struct gpio_chip *gc);
  15void of_gpiochip_remove(struct gpio_chip *gc);
  16int of_gpio_get_count(struct device *dev, const char *con_id);
  17bool of_gpio_need_valid_mask(const struct gpio_chip *gc);
  18#else
  19static inline struct gpio_desc *of_find_gpio(struct device *dev,
  20                                             const char *con_id,
  21                                             unsigned int idx,
  22                                             unsigned long *lookupflags)
  23{
  24        return ERR_PTR(-ENOENT);
  25}
  26static inline int of_gpiochip_add(struct gpio_chip *gc) { return 0; }
  27static inline void of_gpiochip_remove(struct gpio_chip *gc) { }
  28static inline int of_gpio_get_count(struct device *dev, const char *con_id)
  29{
  30        return 0;
  31}
  32static inline bool of_gpio_need_valid_mask(const struct gpio_chip *gc)
  33{
  34        return false;
  35}
  36#endif /* CONFIG_OF_GPIO */
  37
  38#endif /* GPIOLIB_OF_H */
  39