tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef LINUX_SPI_MAX7301_H
2#define LINUX_SPI_MAX7301_H
3
4#include <linux/gpio.h>
5
6/*
7 * Some registers must be read back to modify.
8 * To save time we cache them here in memory
9 */
10struct max7301 {
11 struct mutex lock;
12 u8 port_config[8]; /* field 0 is unused */
13 u32 out_level; /* cached output levels */
14 struct gpio_chip chip;
15 struct device *dev;
16 int (*write)(struct device *dev, unsigned int reg, unsigned int val);
17 int (*read)(struct device *dev, unsigned int reg);
18};
19
20struct max7301_platform_data {
21 /* number assigned to the first GPIO */
22 unsigned base;
23};
24
25extern int __max730x_remove(struct device *dev);
26extern int __max730x_probe(struct max7301 *ts);
27#endif