include/linux/platform_data/media/omap4iss.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef ARCH_ARM_PLAT_OMAP4_ISS_H
   3 #define ARCH_ARM_PLAT_OMAP4_ISS_H
   4
   5 #include <linux/i2c.h>
   6
   7 struct iss_device;
   8
   9 enum iss_interface_type {
  10         ISS_INTERFACE_CSI2A_PHY1,
  11         ISS_INTERFACE_CSI2B_PHY2,
  12 };
  13
  14 /**
  15  * struct iss_csiphy_lane: CSI2 lane position and polarity
  16  * @pos: position of the lane
  17  * @pol: polarity of the lane
  18  */
  19 struct iss_csiphy_lane {
  20         u8 pos;
  21         u8 pol;
  22 };
  23
  24 #define ISS_CSIPHY1_NUM_DATA_LANES      4
  25 #define ISS_CSIPHY2_NUM_DATA_LANES      1
  26
  27 /**
  28  * struct iss_csiphy_lanes_cfg - CSI2 lane configuration
  29  * @data: Configuration of one or two data lanes
  30  * @clk: Clock lane configuration
  31  */
  32 struct iss_csiphy_lanes_cfg {
  33         struct iss_csiphy_lane data[ISS_CSIPHY1_NUM_DATA_LANES];
  34         struct iss_csiphy_lane clk;
  35 };
  36
  37 /**
  38  * struct iss_csi2_platform_data - CSI2 interface platform data
  39  * @crc: Enable the cyclic redundancy check
  40  * @vpclk_div: Video port output clock control
  41  */
  42 struct iss_csi2_platform_data {
  43         unsigned crc:1;
  44         unsigned vpclk_div:2;
  45         struct iss_csiphy_lanes_cfg lanecfg;
  46 };
  47
  48 struct iss_subdev_i2c_board_info {
  49         struct i2c_board_info *board_info;
  50         int i2c_adapter_id;
  51 };
  52
  53 struct iss_v4l2_subdevs_group {
  54         struct iss_subdev_i2c_board_info *subdevs;
  55         enum iss_interface_type interface;
  56         union {
  57                 struct iss_csi2_platform_data csi2;
  58         } bus; /* gcc < 4.6.0 chokes on anonymous union initializers */
  59 };
  60
  61 struct iss_platform_data {
  62         struct iss_v4l2_subdevs_group *subdevs;
  63         void (*set_constraints)(struct iss_device *iss, bool enable);
  64 };
  65
  66 #endif