|  | /* SPDX-License-Identifier: GPL-2.0 */ | 
|  |  | 
|  | #ifndef GPIOLIB_OF_H | 
|  | #define GPIOLIB_OF_H | 
|  |  | 
|  | struct gpio_chip; | 
|  | enum of_gpio_flags; | 
|  |  | 
|  | #ifdef CONFIG_OF_GPIO | 
|  | struct gpio_desc *of_find_gpio(struct device *dev, | 
|  | const char *con_id, | 
|  | unsigned int idx, | 
|  | unsigned long *lookupflags); | 
|  | int of_gpiochip_add(struct gpio_chip *gc); | 
|  | void of_gpiochip_remove(struct gpio_chip *gc); | 
|  | int of_gpio_get_count(struct device *dev, const char *con_id); | 
|  | bool of_gpio_need_valid_mask(const struct gpio_chip *gc); | 
|  | #else | 
|  | static inline struct gpio_desc *of_find_gpio(struct device *dev, | 
|  | const char *con_id, | 
|  | unsigned int idx, | 
|  | unsigned long *lookupflags) | 
|  | { | 
|  | return ERR_PTR(-ENOENT); | 
|  | } | 
|  | static inline int of_gpiochip_add(struct gpio_chip *gc) { return 0; } | 
|  | static inline void of_gpiochip_remove(struct gpio_chip *gc) { } | 
|  | static inline int of_gpio_get_count(struct device *dev, const char *con_id) | 
|  | { | 
|  | return 0; | 
|  | } | 
|  | static inline bool of_gpio_need_valid_mask(const struct gpio_chip *gc) | 
|  | { | 
|  | return false; | 
|  | } | 
|  | #endif /* CONFIG_OF_GPIO */ | 
|  |  | 
|  | extern struct notifier_block gpio_of_notifier; | 
|  |  | 
|  | #endif /* GPIOLIB_OF_H */ |