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
67