90 struct gpio_chip {  struct
97 	int			(*request)(struct gpio_chip *chip,  argument
99 	void			(*free)(struct gpio_chip *chip,  argument
101 	int			(*get_direction)(struct gpio_chip *chip,  argument
103 	int			(*direction_input)(struct gpio_chip *chip,  argument
105 	int			(*direction_output)(struct gpio_chip *chip,  argument
107 	int			(*get)(struct gpio_chip *chip,  argument
109 	void			(*set)(struct gpio_chip *chip,  argument
111 	void			(*set_multiple)(struct gpio_chip *chip,  argument
114 	int			(*set_debounce)(struct gpio_chip *chip,  argument
118 	int			(*to_irq)(struct gpio_chip *chip,  argument
122 						struct gpio_chip *chip);  argument
151 	int (*of_xlate)(struct gpio_chip *gc,  argument
165 extern const char *gpiochip_is_requested(struct gpio_chip *chip,  argument
169 extern int gpiochip_add(struct gpio_chip *chip);
170 extern void gpiochip_remove(struct gpio_chip *chip);
171 extern struct gpio_chip *gpiochip_find(void *data,
172 			      int (*match)(struct gpio_chip *chip, void *data));
175 int gpiochip_lock_as_irq(struct gpio_chip *chip, unsigned int offset);
176 void gpiochip_unlock_as_irq(struct gpio_chip *chip, unsigned int offset);
178 struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc);
182 void gpiochip_set_chained_irqchip(struct gpio_chip *gpiochip,
187 int _gpiochip_irqchip_add(struct gpio_chip *gpiochip,
209 int gpiochip_generic_request(struct gpio_chip *chip, unsigned offset);
210 void gpiochip_generic_free(struct gpio_chip *chip, unsigned offset);
227 int gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,
230 int gpiochip_add_pingroup_range(struct gpio_chip *chip,
233 void gpiochip_remove_pin_ranges(struct gpio_chip *chip);
238 gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,  in gpiochip_add_pin_range()
245 gpiochip_add_pingroup_range(struct gpio_chip *chip,  in gpiochip_add_pingroup_range()
253 gpiochip_remove_pin_ranges(struct gpio_chip *chip)  in gpiochip_remove_pin_ranges()
259 struct gpio_desc *gpiochip_request_own_desc(struct gpio_chip *chip, u16 hwnum,
265 static inline struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc)  in gpiod_to_chip()