1. 根目录:
2. include
3. linux
4. platform_data
5. i2c-mux-reg.h

/*
 * I2C multiplexer using a single register
 *
 * Copyright 2015 Freescale Semiconductor
 * York Sun <yorksun@freescale.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 */

#ifndef __LINUX_PLATFORM_DATA_I2C_MUX_REG_H
#define __LINUX_PLATFORM_DATA_I2C_MUX_REG_H

/**
 * struct i2c_mux_reg_platform_data - Platform-dependent data for i2c-mux-reg
 * : Parent I2C bus adapter number
 * @base_nr: Base I2C bus number to number adapters from or zero for dynamic
 * @values: Array of value for each channel
 * @n_values: Number of multiplexer channels
 * @little_endian: Indicating if the register is in little endian
 * @write_only: Reading the register is not allowed by hardware
 * @classes: Optional I2C auto-detection classes
 * @idle: Value to write to mux when idle
 * @idle_in_use: indicate if idle value is in use
 * @reg: Virtual address of the register to switch channel
 * @reg_size: register size in bytes
 */
struct i2c_mux_reg_platform_data {
	int parent;
	int base_nr;
	const unsigned int *values;
	int n_values;
	bool little_endian;
	bool write_only;
	const unsigned int *classes;
	u32 idle;
	bool idle_in_use;
	void __iomem *reg;
	resource_size_t reg_size;
};

#endif	/* __LINUX_PLATFORM_DATA_I2C_MUX_REG_H */