LXR linux/include/linux/platform

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __I2C_OMAP_H__
   3#define __I2C_OMAP_H__
   4
   5#include <linux/platform_device.h>
   6
   7/*
   8 * Version 2 of the I2C peripheral unit has a different register
   9 * layout and extra registers.  The ID register in the V2 peripheral
  10 * unit on the OMAP4430 reports the same ID as the V1 peripheral
  11 * unit on the OMAP3530, so we must inform the driver which IP
  12 * version we know it is running on from platform / cpu-specific
  13 * code using these constants in the hwmod class definition.
  14 */
  15
  16#define OMAP_I2C_IP_VERSION_1 1
  17#define OMAP_I2C_IP_VERSION_2 2
  18
  19/* struct omap_i2c_bus_platform_data .flags meanings */
  20
  21#define OMAP_I2C_FLAG_NO_FIFO                   BIT(0)
  22#define OMAP_I2C_FLAG_SIMPLE_CLOCK              BIT(1)
  23#define OMAP_I2C_FLAG_16BIT_DATA_REG            BIT(2)
  24#define OMAP_I2C_FLAG_ALWAYS_ARMXOR_CLK BIT(5)
  25#define OMAP_I2C_FLAG_FORCE_19200_INT_CLK       BIT(6)
  26/* how the CPU address bus must be translated for I2C unit access */
  27#define OMAP_I2C_FLAG_BUS_SHIFT_NONE 0
  28#define OMAP_I2C_FLAG_BUS_SHIFT_1               BIT(7)
  29#define OMAP_I2C_FLAG_BUS_SHIFT_2               BIT(8)
  30#define OMAP_I2C_FLAG_BUS_SHIFT__SHIFT 7
  31
  32struct omap_i2c_bus_platform_data {
  33        u32             clkrate;
  34        u32             rev;
  35        u32             flags;
  36        void            (*set_mpu_wkup_lat)(struct device *dev, long set);
  37};
  38
  39#endif
  40