Release 4.12 include/linux/spi/max7301.h

#ifndef LINUX_SPI_MAX7301_H

#define LINUX_SPI_MAX7301_H

#include <linux/gpio.h>

/*
 * Some registers must be read back to modify.
 * To save time we cache them here in memory
 */

struct max7301 {
	
struct mutex	lock;
	
u8		port_config[8];	/* field 0 is unused */
	
u32		out_level;	/* cached output levels */
	
u32		input_pullup_active;
	
struct gpio_chip chip;
	
struct device *dev;
	
int (*write)(struct device *dev, unsigned int reg, unsigned int val);
	
int (*read)(struct device *dev, unsigned int reg);
};


struct max7301_platform_data {
	/* number assigned to the first GPIO */
	
unsigned	base;
	/*
         * bitmask controlling the pullup configuration,
         *
         * _note_ the 4 lowest bits are unused, because the first 4
         * ports of the controller are not used, too.
         */
	
u32		input_pullup_active;
};

extern int __max730x_remove(struct device *dev);
extern int __max730x_probe(struct max7301 *ts);
#endif
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Directory: include/linux/spi

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