425 struct gpio_chip {  struct
432 	int			(*request)(struct gpio_chip *gc,  argument
434 	void			(*free)(struct gpio_chip *gc,  argument
436 	int			(*get_direction)(struct gpio_chip *gc,  argument
438 	int			(*direction_input)(struct gpio_chip *gc,  argument
440 	int			(*direction_output)(struct gpio_chip *gc,  argument
442 	int			(*get)(struct gpio_chip *gc,  argument
444 	int			(*get_multiple)(struct gpio_chip *gc,  argument
447 	void			(*set)(struct gpio_chip *gc,  argument
449 	void			(*set_multiple)(struct gpio_chip *gc,  argument
452 	int			(*set_rv)(struct gpio_chip *gc,  argument
455 	int			(*set_multiple_rv)(struct gpio_chip *gc,  argument
458 	int			(*set_config)(struct gpio_chip *gc,  argument
461 	int			(*to_irq)(struct gpio_chip *gc,  argument
465 						struct gpio_chip *gc);  argument
467 	int			(*init_valid_mask)(struct gpio_chip *gc,  argument
471 	int			(*add_pin_ranges)(struct gpio_chip *gc);  argument
473 	int			(*en_hw_timestamp)(struct gpio_chip *gc,  argument
476 	int			(*dis_hw_timestamp)(struct gpio_chip *gc,  argument
479 	int			base;
480 	u16			ngpio;
481 	u16			offset;
482 	const char		*const *names;
483 	bool			can_sleep;
486 	unsigned long (*read_reg)(void __iomem *reg);
487 	void (*write_reg)(void __iomem *reg, unsigned long data);
488 	bool be_bits;
489 	void __iomem *reg_dat;
490 	void __iomem *reg_set;
491 	void __iomem *reg_clr;
492 	void __iomem *reg_dir_out;
493 	void __iomem *reg_dir_in;
494 	bool bgpio_dir_unreadable;
495 	bool bgpio_pinctrl;
496 	int bgpio_bits;
497 	raw_spinlock_t bgpio_lock;
498 	unsigned long bgpio_data;
499 	unsigned long bgpio_dir;
514 	struct gpio_irq_chip irq;
546 	 * any driver using more than one gpio_chip per device tree node.  argument
550 	bool (*of_node_instance_match)(struct gpio_chip *gc, unsigned int i);  argument
558 	int (*of_xlate)(struct gpio_chip *gc,  argument