424 struct spi_controller {  struct
425 	struct device	dev;
427 	struct list_head list;
435 	s16			bus_num;
440 	u16			num_chipselect;
445 	u16			dma_alignment;
448 	u32			mode_bits;
451 	u32			bits_per_word_mask;
456 	u32			min_speed_hz;
457 	u32			max_speed_hz;
460 	u16			flags;
470 	bool			slave;
476 	size_t (*max_transfer_size)(struct spi_device *spi);
477 	size_t (*max_message_size)(struct spi_device *spi);
480 	struct mutex		io_mutex;
483 	spinlock_t		bus_lock_spinlock;
484 	struct mutex		bus_lock_mutex;
487 	bool			bus_lock_flag;
495 	int			(*setup)(struct spi_device *spi);
505 	void (*set_cs_timing)(struct spi_device *spi, u8 setup_clk_cycles,
530 	/* called on release() to free memory provided by spi_controller */  argument
540 	bool			(*can_dma)(struct spi_controller *ctlr,  argument
567 	int (*prepare_transfer_hardware)(struct spi_controller *ctlr);  argument
568 	int (*transfer_one_message)(struct spi_controller *ctlr,  argument
570 	int (*unprepare_transfer_hardware)(struct spi_controller *ctlr);  argument
571 	int (*prepare_message)(struct spi_controller *ctlr,  argument
573 	int (*unprepare_message)(struct spi_controller *ctlr,  argument
575 	int (*slave_abort)(struct spi_controller *ctlr);  argument
582 	int (*transfer_one)(struct spi_controller *ctlr, struct spi_device *spi,  argument
584 	void (*handle_err)(struct spi_controller *ctlr,  argument
588 	const struct spi_controller_mem_ops *mem_ops;  argument
606 	int (*fw_translate_cs)(struct spi_controller *ctlr, unsigned cs);  argument