diff options
Diffstat (limited to 'include/linux/platform_data')
| -rw-r--r-- | include/linux/platform_data/i2c-mux-reg.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/include/linux/platform_data/i2c-mux-reg.h b/include/linux/platform_data/i2c-mux-reg.h new file mode 100644 index 000000000000..c68712aadf43 --- /dev/null +++ b/include/linux/platform_data/i2c-mux-reg.h | |||
| @@ -0,0 +1,44 @@ | |||
| 1 | /* | ||
| 2 | * I2C multiplexer using a single register | ||
| 3 | * | ||
| 4 | * Copyright 2015 Freescale Semiconductor | ||
| 5 | * York Sun <yorksun@freescale.com> | ||
| 6 | * | ||
| 7 | * This program is free software; you can redistribute it and/or modify it | ||
| 8 | * under the terms of the GNU General Public License as published by the | ||
| 9 | * Free Software Foundation; either version 2 of the License, or (at your | ||
| 10 | * option) any later version. | ||
| 11 | */ | ||
| 12 | |||
| 13 | #ifndef __LINUX_PLATFORM_DATA_I2C_MUX_REG_H | ||
| 14 | #define __LINUX_PLATFORM_DATA_I2C_MUX_REG_H | ||
| 15 | |||
| 16 | /** | ||
| 17 | * struct i2c_mux_reg_platform_data - Platform-dependent data for i2c-mux-reg | ||
| 18 | * @parent: Parent I2C bus adapter number | ||
| 19 | * @base_nr: Base I2C bus number to number adapters from or zero for dynamic | ||
| 20 | * @values: Array of value for each channel | ||
| 21 | * @n_values: Number of multiplexer channels | ||
| 22 | * @little_endian: Indicating if the register is in little endian | ||
| 23 | * @write_only: Reading the register is not allowed by hardware | ||
| 24 | * @classes: Optional I2C auto-detection classes | ||
| 25 | * @idle: Value to write to mux when idle | ||
| 26 | * @idle_in_use: indicate if idle value is in use | ||
| 27 | * @reg: Virtual address of the register to switch channel | ||
| 28 | * @reg_size: register size in bytes | ||
| 29 | */ | ||
| 30 | struct i2c_mux_reg_platform_data { | ||
| 31 | int parent; | ||
| 32 | int base_nr; | ||
| 33 | const unsigned int *values; | ||
| 34 | int n_values; | ||
| 35 | bool little_endian; | ||
| 36 | bool write_only; | ||
| 37 | const unsigned int *classes; | ||
| 38 | u32 idle; | ||
| 39 | bool idle_in_use; | ||
| 40 | void __iomem *reg; | ||
| 41 | resource_size_t reg_size; | ||
| 42 | }; | ||
| 43 | |||
| 44 | #endif /* __LINUX_PLATFORM_DATA_I2C_MUX_REG_H */ | ||
