include/linux/platform_data/ad5449.h

   1 /*
   2  * AD5415, AD5426, AD5429, AD5432, AD5439, AD5443, AD5449 Digital to Analog
   3  * Converter driver.
   4  *
   5  * Copyright 2012 Analog Devices Inc.
   6  *  Author: Lars-Peter Clausen <lars@metafoo.de>
   7  *
   8  * Licensed under the GPL-2.
   9  */
  10
  11 #ifndef __LINUX_PLATFORM_DATA_AD5449_H__
  12 #define __LINUX_PLATFORM_DATA_AD5449_H__
  13
  14 /**
  15  * enum ad5449_sdo_mode - AD5449 SDO pin configuration
  16  * @AD5449_SDO_DRIVE_FULL: Drive the SDO pin with full strength.
  17  * @AD5449_SDO_DRIVE_WEAK: Drive the SDO pin with not full strength.
  18  * @AD5449_SDO_OPEN_DRAIN: Operate the SDO pin in open-drain mode.
  19  * @AD5449_SDO_DISABLED: Disable the SDO pin, in this mode it is not possible to
  20  *                      read back from the device.
  21  */
  22 enum ad5449_sdo_mode {
  23         AD5449_SDO_DRIVE_FULL = 0x0,
  24         AD5449_SDO_DRIVE_WEAK = 0x1,
  25         AD5449_SDO_OPEN_DRAIN = 0x2,
  26         AD5449_SDO_DISABLED = 0x3,
  27 };
  28
  29 /**
  30  * struct ad5449_platform_data - Platform data for the ad5449 DAC driver
  31  * @sdo_mode: SDO pin mode
  32  * @hardware_clear_to_midscale: Whether asserting the hardware CLR pin sets the
  33  *                      outputs to midscale (true) or to zero scale(false).
  34  */
  35 struct ad5449_platform_data {
  36         enum ad5449_sdo_mode sdo_mode;
  37         bool hardware_clear_to_midscale;
  38 };
  39
  40 #endif