1. 根目录:
2. include
3. linux
4. platform_data
5. spi-ep93xx.h

#ifndef __ASM_MACH_EP93XX_SPI_H
#define __ASM_MACH_EP93XX_SPI_H

struct spi_device;

/**
 * struct ep93xx_spi_info - EP93xx specific SPI descriptor
 * @num_chipselect: number of chip selects on this board, must be
 *                  at least one
 * @use_dma: use DMA for the transfers
 */
struct ep93xx_spi_info {
	int	num_chipselect;
	bool	use_dma;
};

/**
 * struct ep93xx_spi_chip_ops - operation callbacks for SPI slave device
 * @setup: setup the chip select mechanism
 * @cleanup: cleanup the chip select mechanism
 * @cs_control: control the device chip select
 */
struct ep93xx_spi_chip_ops {
	int	(*setup)(struct spi_device *spi);
	void	(*cleanup)(struct spi_device *spi);
	void	(*cs_control)(struct spi_device *spi, int value);
};

#endif /* __ASM_MACH_EP93XX_SPI_H */