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 | |