123456789101112131415161718192021222324252627282930313233343536373839 |
- /*
- * gpio-i2cmux 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_GPIO_I2CMUX_H
- #define _LINUX_GPIO_I2CMUX_H
- /* MUX has no specific idle mode */
- #define GPIO_I2CMUX_NO_IDLE ((unsigned)-1)
- /**
- * struct gpio_i2cmux_platform_data - Platform-dependent data for gpio-i2cmux
- * @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)
- * @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 gpio_i2cmux_platform_data {
- int parent;
- int base_nr;
- const unsigned *values;
- int n_values;
- const unsigned *gpios;
- int n_gpios;
- unsigned idle;
- };
- #endif /* _LINUX_GPIO_I2CMUX_H */
|