diff options
| author | Stephen Rothwell <sfr@canb.auug.org.au> | 2010-12-30 09:35:53 +1100 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2010-12-30 09:35:53 +1100 |
| commit | 690d2a8425fef8eff3ac168f49fc448933a19452 (patch) | |
| tree | d0f77567961bfebd6955a8e8cd9a0abb3e69d9d7 /include | |
| parent | 9764e736361750d338c55b274b20f9209cd08744 (diff) | |
| parent | 05ae2aa5af19e5f3b3ece3218804ce8bbcecb3e4 (diff) | |
Merge branch 'quilt/i2c'
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/gpio-i2cmux.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/include/linux/gpio-i2cmux.h b/include/linux/gpio-i2cmux.h new file mode 100644 index 000000000000..4a333bb0bd0d --- /dev/null +++ b/include/linux/gpio-i2cmux.h @@ -0,0 +1,38 @@ +/* + * 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 */ |