diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/platform_data/ad5449.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/include/linux/platform_data/ad5449.h b/include/linux/platform_data/ad5449.h new file mode 100644 index 000000000000..bd712bd4b94e --- /dev/null +++ b/include/linux/platform_data/ad5449.h @@ -0,0 +1,40 @@ +/* + * AD5415, AD5426, AD5429, AD5432, AD5439, AD5443, AD5449 Digital to Analog + * Converter driver. + * + * Copyright 2012 Analog Devices Inc. + * Author: Lars-Peter Clausen <lars@metafoo.de> + * + * Licensed under the GPL-2. + */ + +#ifndef __LINUX_PLATFORM_DATA_AD5449_H__ +#define __LINUX_PLATFORM_DATA_AD5449_H__ + +/** + * enum ad5449_sdo_mode - AD5449 SDO pin configuration + * @AD5449_SDO_DRIVE_FULL: Drive the SDO pin with full strength. + * @AD5449_SDO_DRIVE_WEAK: Drive the SDO pin with not full strength. + * @AD5449_SDO_OPEN_DRAIN: Operate the SDO pin in open-drain mode. + * @AD5449_SDO_DISABLED: Disable the SDO pin, in this mode it is not possible to + * read back from the device. + */ +enum ad5449_sdo_mode { + AD5449_SDO_DRIVE_FULL = 0x0, + AD5449_SDO_DRIVE_WEAK = 0x1, + AD5449_SDO_OPEN_DRAIN = 0x2, + AD5449_SDO_DISABLED = 0x3, +}; + +/** + * struct ad5449_platform_data - Platform data for the ad5449 DAC driver + * @sdo_mode: SDO pin mode + * @hardware_clear_to_midscale: Whether asserting the hardware CLR pin sets the + * outputs to midscale (true) or to zero scale(false). + */ +struct ad5449_platform_data { + enum ad5449_sdo_mode sdo_mode; + bool hardware_clear_to_midscale; +}; + +#endif |