1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * i2c-mux-gpio interface to platform code
4  *
5  * Peter Korsgaard <peter.korsgaard@barco.com>
6  */
7 
8 #ifndef _LINUX_I2C_MUX_GPIO_H
9 #define _LINUX_I2C_MUX_GPIO_H
10 
11 /* MUX has no specific idle mode */
12 #define I2C_MUX_GPIO_NO_IDLE	((unsigned)-1)
13 
14 /**
15  * struct i2c_mux_gpio_platform_data - Platform-dependent data for i2c-mux-gpio
16  * @parent: Parent I2C bus adapter number
17  * @base_nr: Base I2C bus number to number adapters from or zero for dynamic
18  * @values: Array of bitmasks of GPIO settings (low/high) for each
19  *	position
20  * @n_values: Number of multiplexer positions (busses to instantiate)
21  * @classes: Optional I2C auto-detection classes
22  * @idle: Bitmask to write to MUX when idle or GPIO_I2CMUX_NO_IDLE if not used
23  */
24 struct i2c_mux_gpio_platform_data {
25 	int parent;
26 	int base_nr;
27 	const unsigned *values;
28 	int n_values;
29 	const unsigned *classes;
30 	unsigned idle;
31 };
32 
33 #endif /* _LINUX_I2C_MUX_GPIO_H */
34