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