xref: /openbmc/linux/drivers/gpio/gpiolib-of.h (revision 63636d95)
1f626d6dfSLinus Walleij /* SPDX-License-Identifier: GPL-2.0 */
2f626d6dfSLinus Walleij 
3f626d6dfSLinus Walleij #ifndef GPIOLIB_OF_H
4f626d6dfSLinus Walleij #define GPIOLIB_OF_H
5f626d6dfSLinus Walleij 
6f626d6dfSLinus Walleij struct gpio_chip;
7f626d6dfSLinus Walleij enum of_gpio_flags;
8f626d6dfSLinus Walleij 
9f626d6dfSLinus Walleij #ifdef CONFIG_OF_GPIO
10f626d6dfSLinus Walleij struct gpio_desc *of_find_gpio(struct device *dev,
11f626d6dfSLinus Walleij 			       const char *con_id,
12f626d6dfSLinus Walleij 			       unsigned int idx,
13f626d6dfSLinus Walleij 			       unsigned long *lookupflags);
14f626d6dfSLinus Walleij int of_gpiochip_add(struct gpio_chip *gc);
15f626d6dfSLinus Walleij void of_gpiochip_remove(struct gpio_chip *gc);
16f626d6dfSLinus Walleij int of_gpio_get_count(struct device *dev, const char *con_id);
1749281a22SStephen Boyd bool of_gpio_need_valid_mask(const struct gpio_chip *gc);
18f626d6dfSLinus Walleij #else
19f626d6dfSLinus Walleij static inline struct gpio_desc *of_find_gpio(struct device *dev,
20f626d6dfSLinus Walleij 					     const char *con_id,
21f626d6dfSLinus Walleij 					     unsigned int idx,
22f626d6dfSLinus Walleij 					     unsigned long *lookupflags)
23f626d6dfSLinus Walleij {
24f626d6dfSLinus Walleij 	return ERR_PTR(-ENOENT);
25f626d6dfSLinus Walleij }
26f626d6dfSLinus Walleij static inline int of_gpiochip_add(struct gpio_chip *gc) { return 0; }
27f626d6dfSLinus Walleij static inline void of_gpiochip_remove(struct gpio_chip *gc) { }
28f626d6dfSLinus Walleij static inline int of_gpio_get_count(struct device *dev, const char *con_id)
29f626d6dfSLinus Walleij {
30f626d6dfSLinus Walleij 	return 0;
31f626d6dfSLinus Walleij }
3249281a22SStephen Boyd static inline bool of_gpio_need_valid_mask(const struct gpio_chip *gc)
33f626d6dfSLinus Walleij {
34f626d6dfSLinus Walleij 	return false;
35f626d6dfSLinus Walleij }
36f626d6dfSLinus Walleij #endif /* CONFIG_OF_GPIO */
37f626d6dfSLinus Walleij 
3863636d95SGeert Uytterhoeven extern struct notifier_block gpio_of_notifier;
3963636d95SGeert Uytterhoeven 
40f626d6dfSLinus Walleij #endif /* GPIOLIB_OF_H */
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