Documentation/devicetree/bindings/media/renesas,rcar-csi2.txt

   1 Renesas R-Car MIPI CSI-2
   2 ------------------------
   3
   4 The R-Car CSI-2 receiver device provides MIPI CSI-2 capabilities for the
   5 Renesas R-Car and RZ/G2 family of devices. It is used in conjunction with the
   6 R-Car VIN module, which provides the video capture capabilities.
   7
   8 Mandatory properties
   9 --------------------
  10  - compatible: Must be one or more of the following
  11    - "renesas,r8a774c0-csi2" for the R8A774C0 device.
  12    - "renesas,r8a7795-csi2" for the R8A7795 device.
  13    - "renesas,r8a7796-csi2" for the R8A7796 device.
  14    - "renesas,r8a77965-csi2" for the R8A77965 device.
  15    - "renesas,r8a77970-csi2" for the R8A77970 device.
  16    - "renesas,r8a77980-csi2" for the R8A77980 device.
  17    - "renesas,r8a77990-csi2" for the R8A77990 device.
  18
  19  - reg: the register base and size for the device registers
  20  - interrupts: the interrupt for the device
  21  - clocks: reference to the parent clock
  22
  23 The device node shall contain two 'port' child nodes according to the
  24 bindings defined in Documentation/devicetree/bindings/media/
  25 video-interfaces.txt. port@0 shall connect to the CSI-2 source. port@1
  26 shall connect to all the R-Car VIN modules that have a hardware
  27 connection to the CSI-2 receiver.
  28
  29 - port@0- Video source (mandatory)
  30         - endpoint@0 - sub-node describing the endpoint that is the video source
  31
  32 - port@1 - VIN instances (optional)
  33         - One endpoint sub-node for every R-Car VIN instance which is connected
  34           to the R-Car CSI-2 receiver.
  35
  36 Example:
  37
  38         csi20: csi2@fea80000 {
  39                 compatible = "renesas,r8a7796-csi2";
  40                 reg = <0 0xfea80000 0 0x10000>;
  41                 interrupts = <0 184 IRQ_TYPE_LEVEL_HIGH>;
  42                 clocks = <&cpg CPG_MOD 714>;
  43                 power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
  44                 resets = <&cpg 714>;
  45
  46                 ports {
  47                         #address-cells = <1>;
  48                         #size-cells = <0>;
  49
  50                         port@0 {
  51                                 #address-cells = <1>;
  52                                 #size-cells = <0>;
  53
  54                                 reg = <0>;
  55
  56                                 csi20_in: endpoint@0 {
  57                                         reg = <0>;
  58                                         clock-lanes = <0>;
  59                                         data-lanes = <1>;
  60                                         remote-endpoint = <&adv7482_txb>;
  61                                 };
  62                         };
  63
  64                         port@1 {
  65                                 #address-cells = <1>;
  66                                 #size-cells = <0>;
  67
  68                                 reg = <1>;
  69
  70                                 csi20vin0: endpoint@0 {
  71                                         reg = <0>;
  72                                         remote-endpoint = <&vin0csi20>;
  73                                 };
  74                                 csi20vin1: endpoint@1 {
  75                                         reg = <1>;
  76                                         remote-endpoint = <&vin1csi20>;
  77                                 };
  78                                 csi20vin2: endpoint@2 {
  79                                         reg = <2>;
  80                                         remote-endpoint = <&vin2csi20>;
  81                                 };
  82                                 csi20vin3: endpoint@3 {
  83                                         reg = <3>;
  84                                         remote-endpoint = <&vin3csi20>;
  85                                 };
  86                                 csi20vin4: endpoint@4 {
  87                                         reg = <4>;
  88                                         remote-endpoint = <&vin4csi20>;
  89                                 };
  90                                 csi20vin5: endpoint@5 {
  91                                         reg = <5>;
  92                                         remote-endpoint = <&vin5csi20>;
  93                                 };
  94                                 csi20vin6: endpoint@6 {
  95                                         reg = <6>;
  96                                         remote-endpoint = <&vin6csi20>;
  97                                 };
  98                                 csi20vin7: endpoint@7 {
  99                                         reg = <7>;
 100                                         remote-endpoint = <&vin7csi20>;
 101                                 };
 102                         };
 103                 };
 104         };