1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * I2C multiplexer using a single register
4  *
5  * Copyright 2015 Freescale Semiconductor
6  * York Sun <yorksun@freescale.com>
7  */
8 
9 #ifndef __LINUX_PLATFORM_DATA_I2C_MUX_REG_H
10 #define __LINUX_PLATFORM_DATA_I2C_MUX_REG_H
11 
12 /**
13  * struct i2c_mux_reg_platform_data - Platform-dependent data for i2c-mux-reg
14  * @parent: Parent I2C bus adapter number
15  * @base_nr: Base I2C bus number to number adapters from or zero for dynamic
16  * @values: Array of value for each channel
17  * @n_values: Number of multiplexer channels
18  * @little_endian: Indicating if the register is in little endian
19  * @write_only: Reading the register is not allowed by hardware
20  * @classes: Optional I2C auto-detection classes
21  * @idle: Value to write to mux when idle
22  * @idle_in_use: indicate if idle value is in use
23  * @reg: Virtual address of the register to switch channel
24  * @reg_size: register size in bytes
25  */
26 struct i2c_mux_reg_platform_data {
27 	int parent;
28 	int base_nr;
29 	const unsigned int *values;
30 	int n_values;
31 	bool little_endian;
32 	bool write_only;
33 	const unsigned int *classes;
34 	u32 idle;
35 	bool idle_in_use;
36 	void __iomem *reg;
37 	resource_size_t reg_size;
38 };
39 
40 #endif	/* __LINUX_PLATFORM_DATA_I2C_MUX_REG_H */
41