| /* |
| * i2c-mux-gpio interface to platform code |
| * |
| * Peter Korsgaard <peter.korsgaard@barco.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #ifndef _LINUX_I2C_MUX_GPIO_H |
| #define _LINUX_I2C_MUX_GPIO_H |
| |
| /* MUX has no specific idle mode */ |
| #define I2C_MUX_GPIO_NO_IDLE ((unsigned)-1) |
| |
| /** |
| * struct i2c_mux_gpio_platform_data - Platform-dependent data for i2c-mux-gpio |
| * @parent: Parent I2C bus adapter number |
| * @base_nr: Base I2C bus number to number adapters from or zero for dynamic |
| * @values: Array of bitmasks of GPIO settings (low/high) for each |
| * position |
| * @n_values: Number of multiplexer positions (busses to instantiate) |
| * @classes: Optional I2C auto-detection classes |
| * @gpio_chip: Optional GPIO chip name; if set, GPIO pin numbers are given |
| * relative to the base GPIO number of that chip |
| * @gpios: Array of GPIO numbers used to control MUX |
| * @n_gpios: Number of GPIOs used to control MUX |
| * @idle: Bitmask to write to MUX when idle or GPIO_I2CMUX_NO_IDLE if not used |
| */ |
| struct i2c_mux_gpio_platform_data { |
| int parent; |
| int base_nr; |
| const unsigned *values; |
| int n_values; |
| const unsigned *classes; |
| char *gpio_chip; |
| const unsigned *gpios; |
| int n_gpios; |
| unsigned idle; |
| }; |
| |
| #endif /* _LINUX_I2C_MUX_GPIO_H */ |