74 struct gpio_chip {  struct
80 	int			(*request)(struct gpio_chip *chip,  argument
82 	void			(*free)(struct gpio_chip *chip,  argument
84 	int			(*get_direction)(struct gpio_chip *chip,  argument
86 	int			(*direction_input)(struct gpio_chip *chip,  argument
88 	int			(*direction_output)(struct gpio_chip *chip,  argument
90 	int			(*get)(struct gpio_chip *chip,  argument
92 	void			(*set)(struct gpio_chip *chip,  argument
94 	void			(*set_multiple)(struct gpio_chip *chip,  argument
97 	int			(*set_debounce)(struct gpio_chip *chip,  argument
101 	int			(*to_irq)(struct gpio_chip *chip,  argument
105 						struct gpio_chip *chip);  argument
133 	int (*of_xlate)(struct gpio_chip *gc,  argument
147 extern const char *gpiochip_is_requested(struct gpio_chip *chip,  argument
151 extern int gpiochip_add(struct gpio_chip *chip);
152 extern void gpiochip_remove(struct gpio_chip *chip);
153 extern struct gpio_chip *gpiochip_find(void *data,
154 			      int (*match)(struct gpio_chip *chip, void *data));
157 int gpiochip_lock_as_irq(struct gpio_chip *chip, unsigned int offset);
158 void gpiochip_unlock_as_irq(struct gpio_chip *chip, unsigned int offset);
160 struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc);
164 void gpiochip_set_chained_irqchip(struct gpio_chip *gpiochip,
169 int gpiochip_irqchip_add(struct gpio_chip *gpiochip,
192 int gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,
195 int gpiochip_add_pingroup_range(struct gpio_chip *chip,
198 void gpiochip_remove_pin_ranges(struct gpio_chip *chip);
203 gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,  in gpiochip_add_pin_range()
210 gpiochip_add_pingroup_range(struct gpio_chip *chip,  in gpiochip_add_pingroup_range()
218 gpiochip_remove_pin_ranges(struct gpio_chip *chip)  in gpiochip_remove_pin_ranges()
224 struct gpio_desc *gpiochip_request_own_desc(struct gpio_chip *chip, u16 hwnum,
230 static inline struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc)  in gpiod_to_chip()