projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 92ed1a76 PK |
1 | /* |
| 2 | * gpio-i2cmux interface to platform code | |
| 3 | * | |
| 4 | * Peter Korsgaard <[email protected]> | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify | |
| 7 | * it under the terms of the GNU General Public License version 2 as | |
| 8 | * published by the Free Software Foundation. | |
| 9 | */ | |
| 10 | ||
| 11 | #ifndef _LINUX_GPIO_I2CMUX_H | |
| 12 | #define _LINUX_GPIO_I2CMUX_H | |
| 13 | ||
| 14 | /* MUX has no specific idle mode */ | |
| 15 | #define GPIO_I2CMUX_NO_IDLE ((unsigned)-1) | |
| 16 | ||
| 17 | /** | |
| 18 | * struct gpio_i2cmux_platform_data - Platform-dependent data for gpio-i2cmux | |
| 19 | * @parent: Parent I2C bus adapter number | |
| 20 | * @base_nr: Base I2C bus number to number adapters from or zero for dynamic | |
| 21 | * @values: Array of bitmasks of GPIO settings (low/high) for each | |
| 22 | * position | |
| 23 | * @n_values: Number of multiplexer positions (busses to instantiate) | |
| 24 | * @gpios: Array of GPIO numbers used to control MUX | |
| 25 | * @n_gpios: Number of GPIOs used to control MUX | |
| 26 | * @idle: Bitmask to write to MUX when idle or GPIO_I2CMUX_NO_IDLE if not used | |
| 27 | */ | |
| 28 | struct gpio_i2cmux_platform_data { | |
| 29 | int parent; | |
| 30 | int base_nr; | |
| 31 | const unsigned *values; | |
| 32 | int n_values; | |
| 33 | const unsigned *gpios; | |
| 34 | int n_gpios; | |
| 35 | unsigned idle; | |
| 36 | }; | |
| 37 | ||
| 38 | #endif /* _LINUX_GPIO_I2CMUX_H */ |