include/linux/i2c-omap.h

   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
  32 struct 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