5  * This is the LEGACY GPIO bulk include file, including legacy APIs. It is
6  * used for GPIO drivers still referencing the global GPIO numberspace,
9  * If you're implementing a GPIO driver, only include <linux/gpio/driver.h>
10  * If you're implementing a GPIO consumer, only include <linux/gpio/consumer.h>
19 /* make these flag values available regardless of GPIO kconfig options */
25  * struct gpio - a structure describing a GPIO with configuration
26  * @gpio:	the GPIO number
27  * @flags:	GPIO configuration as specified by GPIOF_*
28  * @label:	a literal description string of this GPIO
30 struct gpio {  struct
31 	unsigned	gpio;  argument
38 #include <linux/gpio/consumer.h>  argument
41  * "valid" GPIO numbers are nonnegative and may be passed to
45  * Invalid GPIO numbers are useful for indicating no-such-GPIO in
55  * Platforms may implement their GPIO interface with library code,
57  * extra memory (for code and for per-GPIO table entries).
67  * Define the maximum of the possible GPIO in the global numberspace.
68  * While the GPIO base and numbers are positive, we limit it with signed
73 /* Always use the library code for GPIO management calls,
76 int gpio_request(unsigned gpio, const char *label);
77 void gpio_free(unsigned gpio);
79 static inline int gpio_direction_input(unsigned gpio)  in gpio_direction_input()  argument
81 	return gpiod_direction_input(gpio_to_desc(gpio));  in gpio_direction_input()
83 static inline int gpio_direction_output(unsigned gpio, int value)  in gpio_direction_output()  argument
85 	return gpiod_direction_output_raw(gpio_to_desc(gpio), value);  in gpio_direction_output()
88 static inline int gpio_get_value_cansleep(unsigned gpio)  in gpio_get_value_cansleep()  argument
90 	return gpiod_get_raw_value_cansleep(gpio_to_desc(gpio));  in gpio_get_value_cansleep()
92 static inline void gpio_set_value_cansleep(unsigned gpio, int value)  in gpio_set_value_cansleep()  argument
94 	return gpiod_set_raw_value_cansleep(gpio_to_desc(gpio), value);  in gpio_set_value_cansleep()
97 static inline int gpio_get_value(unsigned gpio)  in gpio_get_value()  argument
99 	return gpiod_get_raw_value(gpio_to_desc(gpio));  in gpio_get_value()
101 static inline void gpio_set_value(unsigned gpio, int value)  in gpio_set_value()  argument
103 	return gpiod_set_raw_value(gpio_to_desc(gpio), value);  in gpio_set_value()
106 static inline int gpio_to_irq(unsigned gpio)  in gpio_to_irq()  argument
108 	return gpiod_to_irq(gpio_to_desc(gpio));  in gpio_to_irq()
111 int gpio_request_one(unsigned gpio, unsigned long flags, const char *label);
113 int devm_gpio_request(struct device *dev, unsigned gpio, const char *label);
114 int devm_gpio_request_one(struct device *dev, unsigned gpio,
129 static inline int gpio_request(unsigned gpio, const char *label)  in gpio_request()  argument
134 static inline int gpio_request_one(unsigned gpio,  in gpio_request_one()  argument
140 static inline void gpio_free(unsigned gpio)  in gpio_free()  argument
144 	/* GPIO can never have been requested */  in gpio_free()
148 static inline int gpio_direction_input(unsigned gpio)  in gpio_direction_input()  argument
153 static inline int gpio_direction_output(unsigned gpio, int value)  in gpio_direction_output()  argument
158 static inline int gpio_get_value(unsigned gpio)  in gpio_get_value()  argument
160 	/* GPIO can never have been requested or set as {in,out}put */  in gpio_get_value()
165 static inline void gpio_set_value(unsigned gpio, int value)  in gpio_set_value()  argument
167 	/* GPIO can never have been requested or set as output */  in gpio_set_value()
171 static inline int gpio_get_value_cansleep(unsigned gpio)  in gpio_get_value_cansleep()  argument
173 	/* GPIO can never have been requested or set as {in,out}put */  in gpio_get_value_cansleep()
178 static inline void gpio_set_value_cansleep(unsigned gpio, int value)  in gpio_set_value_cansleep()  argument
180 	/* GPIO can never have been requested or set as output */  in gpio_set_value_cansleep()
184 static inline int gpio_to_irq(unsigned gpio)  in gpio_to_irq()  argument
186 	/* GPIO can never have been requested or set as input */  in gpio_to_irq()
191 static inline int devm_gpio_request(struct device *dev, unsigned gpio,  in devm_gpio_request()  argument
198 static inline int devm_gpio_request_one(struct device *dev, unsigned gpio,  in devm_gpio_request_one()  argument