i2c-mux-gpio.h

 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 * @idle: Bitmask to write to MUX when idle or GPIO_I2CMUX_NO_IDLE if not used
22 * @settle_time: Delay to wait when a new bus is selected
23 */
24struct i2c_mux_gpio_platform_data {
25	int parent;
26	int base_nr;
27	const unsigned *values;
28	int n_values;
29	unsigned idle;
30	u32 settle_time;
31};
32
33#endif /* _LINUX_I2C_MUX_GPIO_H */