Documentation/devicetree/bindings/media/renesas,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,r8a774a1-csi2" for the R8A774A1 device.
  12    - "renesas,r8a774c0-csi2" for the R8A774C0 device.
  13    - "renesas,r8a7795-csi2" for the R8A7795 device.
  14    - "renesas,r8a7796-csi2" for the R8A7796 device.
  15    - "renesas,r8a77965-csi2" for the R8A77965 device.
  16    - "renesas,r8a77970-csi2" for the R8A77970 device.
  17    - "renesas,r8a77980-csi2" for the R8A77980 device.
  18    - "renesas,r8a77990-csi2" for the R8A77990 device.
  19
  20  - reg: the register base and size for the device registers
  21  - interrupts: the interrupt for the device
  22  - clocks: A phandle + clock specifier for the module clock
  23  - resets: A phandle + reset specifier for the module reset
  24
  25 The device node shall contain two 'port' child nodes according to the
  26 bindings defined in Documentation/devicetree/bindings/media/
  27 video-interfaces.txt. port@0 shall connect to the CSI-2 source. port@1
  28 shall connect to all the R-Car VIN modules that have a hardware
  29 connection to the CSI-2 receiver.
  30
  31 - port@0- Video source (mandatory)
  32         - endpoint@0 - sub-node describing the endpoint that is the video source
  33
  34 - port@1 - VIN instances (optional)
  35         - One endpoint sub-node for every R-Car VIN instance which is connected
  36           to the R-Car CSI-2 receiver.
  37
  38 Example:
  39
  40         csi20: csi2@fea80000 {
  41                 compatible = "renesas,r8a7796-csi2";
  42                 reg = <0 0xfea80000 0 0x10000>;
  43                 interrupts = <0 184 IRQ_TYPE_LEVEL_HIGH>;
  44                 clocks = <&cpg CPG_MOD 714>;
  45                 power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
  46                 resets = <&cpg 714>;
  47
  48                 ports {
  49                         #address-cells = <1>;
  50                         #size-cells = <0>;
  51
  52                         port@0 {
  53                                 #address-cells = <1>;
  54                                 #size-cells = <0>;
  55
  56                                 reg = <0>;
  57
  58                                 csi20_in: endpoint@0 {
  59                                         reg = <0>;
  60                                         clock-lanes = <0>;
  61                                         data-lanes = <1>;
  62                                         remote-endpoint = <&adv7482_txb>;
  63                                 };
  64                         };
  65
  66                         port@1 {
  67                                 #address-cells = <1>;
  68                                 #size-cells = <0>;
  69
  70                                 reg = <1>;
  71
  72                                 csi20vin0: endpoint@0 {
  73                                         reg = <0>;
  74                                         remote-endpoint = <&vin0csi20>;
  75                                 };
  76                                 csi20vin1: endpoint@1 {
  77                                         reg = <1>;
  78                                         remote-endpoint = <&vin1csi20>;
  79                                 };
  80                                 csi20vin2: endpoint@2 {
  81                                         reg = <2>;
  82                                         remote-endpoint = <&vin2csi20>;
  83                                 };
  84                                 csi20vin3: endpoint@3 {
  85                                         reg = <3>;
  86                                         remote-endpoint = <&vin3csi20>;
  87                                 };
  88                                 csi20vin4: endpoint@4 {
  89                                         reg = <4>;
  90                                         remote-endpoint = <&vin4csi20>;
  91                                 };
  92                                 csi20vin5: endpoint@5 {
  93                                         reg = <5>;
  94                                         remote-endpoint = <&vin5csi20>;
  95                                 };
  96                                 csi20vin6: endpoint@6 {
  97                                         reg = <6>;
  98                                         remote-endpoint = <&vin6csi20>;
  99                                 };
 100                                 csi20vin7: endpoint@7 {
 101                                         reg = <7>;
 102                                         remote-endpoint = <&vin7csi20>;
 103                                 };
 104                         };
 105                 };
 106         };