xref: /linux/drivers/gpio/gpiolib-of.h (revision d19e470b6605c900db21fc7b34c66b6891a79983)
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 #else
19 static 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 }
26 static inline int of_gpiochip_add(struct gpio_chip *gc) { return 0; }
27 static inline void of_gpiochip_remove(struct gpio_chip *gc) { }
28 static inline int of_gpio_get_count(struct device *dev, const char *con_id)
29 {
30 	return 0;
31 }
32 static 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