1 /* SPDX-License-Identifier: GPL-2.0 */ 2 3 #ifndef GPIOLIB_OF_H 4 #define GPIOLIB_OF_H 5 6 struct gpio_chip; 7 enum of_gpio_flags; 8 9 #ifdef CONFIG_OF_GPIO 10 struct gpio_desc *of_find_gpio(struct device *dev, 11 const char *con_id, 12 unsigned int idx, 13 unsigned long *lookupflags); 14 int of_gpiochip_add(struct gpio_chip *gc); 15 void of_gpiochip_remove(struct gpio_chip *gc); 16 int of_gpio_get_count(struct device *dev, const char *con_id); 17 bool of_gpio_need_valid_mask(const struct gpio_chip *gc); 18 void of_gpio_dev_init(struct gpio_chip *gc, struct gpio_device *gdev); 19 #else 20 static inline struct gpio_desc *of_find_gpio(struct device *dev, 21 const char *con_id, 22 unsigned int idx, 23 unsigned long *lookupflags) 24 { 25 return ERR_PTR(-ENOENT); 26 } 27 static inline int of_gpiochip_add(struct gpio_chip *gc) { return 0; } 28 static inline void of_gpiochip_remove(struct gpio_chip *gc) { } 29 static inline int of_gpio_get_count(struct device *dev, const char *con_id) 30 { 31 return 0; 32 } 33 static inline bool of_gpio_need_valid_mask(const struct gpio_chip *gc) 34 { 35 return false; 36 } 37 static inline void of_gpio_dev_init(struct gpio_chip *gc, 38 struct gpio_device *gdev) 39 { 40 } 41 #endif /* CONFIG_OF_GPIO */ 42 43 extern struct notifier_block gpio_of_notifier; 44 45 #endif /* GPIOLIB_OF_H */ 46