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 */
24 struct 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 */
34
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