1Renesas RCar Video Input driver (rcar_vin)
2------------------------------------------
3
4The rcar_vin device provides video input capabilities for the Renesas R-Car
5family of devices. The current blocks are always slaves and suppot one input
6channel which can be either RGB, YUYV or BT656.
7
8 - compatible: Must be one of the following
9   - "renesas,vin-r8a7794" for the R8A7794 device
10   - "renesas,vin-r8a7793" for the R8A7793 device
11   - "renesas,vin-r8a7791" for the R8A7791 device
12   - "renesas,vin-r8a7790" for the R8A7790 device
13   - "renesas,vin-r8a7779" for the R8A7779 device
14   - "renesas,vin-r8a7778" for the R8A7778 device
15 - reg: the register base and size for the device registers
16 - interrupts: the interrupt for the device
17 - clocks: Reference to the parent clock
18
19Additionally, an alias named vinX will need to be created to specify
20which video input device this is.
21
22The per-board settings:
23 - port sub-node describing a single endpoint connected to the vin
24   as described in video-interfaces.txt[1]. Only the first one will
25   be considered as each vin interface has one input port.
26
27   These settings are used to work out video input format and widths
28   into the system.
29
30
31Device node example
32-------------------
33
34	aliases {
35	       vin0 = &vin0;
36	};
37
38        vin0: vin@0xe6ef0000 {
39                compatible = "renesas,vin-r8a7790";
40                clocks = <&mstp8_clks R8A7790_CLK_VIN0>;
41                reg = <0 0xe6ef0000 0 0x1000>;
42                interrupts = <0 188 IRQ_TYPE_LEVEL_HIGH>;
43                status = "disabled";
44        };
45
46Board setup example (vin1 composite video input)
47------------------------------------------------
48
49&i2c2   {
50        status = "ok";
51        pinctrl-0 = <&i2c2_pins>;
52        pinctrl-names = "default";
53
54        adv7180@20 {
55                compatible = "adi,adv7180";
56                reg = <0x20>;
57                remote = <&vin1>;
58
59                port {
60                        adv7180: endpoint {
61                                bus-width = <8>;
62                                remote-endpoint = <&vin1ep0>;
63                        };
64                };
65        };
66};
67
68/* composite video input */
69&vin1 {
70        pinctrl-0 = <&vin1_pins>;
71        pinctrl-names = "default";
72
73        status = "ok";
74
75        port {
76                #address-cells = <1>;
77                #size-cells = <0>;
78
79                vin1ep0: endpoint {
80                        remote-endpoint = <&adv7180>;
81                        bus-width = <8>;
82                };
83        };
84};
85
86
87
88[1] video-interfaces.txt common video media interface
89