linux/include/linux/i2c-omap.h
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   1#ifndef __I2C_OMAP_H__
   2#define __I2C_OMAP_H__
   3
   4#include <linux/platform_device.h>
   5
   6/*
   7 * Version 2 of the I2C peripheral unit has a different register
   8 * layout and extra registers.  The ID register in the V2 peripheral
   9 * unit on the OMAP4430 reports the same ID as the V1 peripheral
  10 * unit on the OMAP3530, so we must inform the driver which IP
  11 * version we know it is running on from platform / cpu-specific
  12 * code using these constants in the hwmod class definition.
  13 */
  14
  15#define OMAP_I2C_IP_VERSION_1 1
  16#define OMAP_I2C_IP_VERSION_2 2
  17
  18/* struct omap_i2c_bus_platform_data .flags meanings */
  19
  20#define OMAP_I2C_FLAG_NO_FIFO                   BIT(0)
  21#define OMAP_I2C_FLAG_SIMPLE_CLOCK              BIT(1)
  22#define OMAP_I2C_FLAG_16BIT_DATA_REG            BIT(2)
  23#define OMAP_I2C_FLAG_ALWAYS_ARMXOR_CLK BIT(5)
  24#define OMAP_I2C_FLAG_FORCE_19200_INT_CLK       BIT(6)
  25/* how the CPU address bus must be translated for I2C unit access */
  26#define OMAP_I2C_FLAG_BUS_SHIFT_NONE 0
  27#define OMAP_I2C_FLAG_BUS_SHIFT_1               BIT(7)
  28#define OMAP_I2C_FLAG_BUS_SHIFT_2               BIT(8)
  29#define OMAP_I2C_FLAG_BUS_SHIFT__SHIFT 7
  30
  31struct omap_i2c_bus_platform_data {
  32        u32             clkrate;
  33        u32             rev;
  34        u32             flags;
  35        void            (*set_mpu_wkup_lat)(struct device *dev, long set);
  36};
  37
  38#endif
  39
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