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,r8a774b1-csi2" for the R8A774B1 device.
  13    - "renesas,r8a774c0-csi2" for the R8A774C0 device.
  14    - "renesas,r8a7795-csi2" for the R8A7795 device.
  15    - "renesas,r8a7796-csi2" for the R8A7796 device.
  16    - "renesas,r8a77965-csi2" for the R8A77965 device.
  17    - "renesas,r8a77970-csi2" for the R8A77970 device.
  18    - "renesas,r8a77980-csi2" for the R8A77980 device.
  19    - "renesas,r8a77990-csi2" for the R8A77990 device.
  20
  21  - reg: the register base and size for the device registers
  22  - interrupts: the interrupt for the device
  23  - clocks: A phandle + clock specifier for the module clock
  24  - resets: A phandle + reset specifier for the module reset
  25
  26 The device node shall contain two 'port' child nodes according to the
  27 bindings defined in Documentation/devicetree/bindings/media/
  28 video-interfaces.txt. port@0 shall connect to the CSI-2 source. port@1
  29 shall connect to all the R-Car VIN modules that have a hardware
  30 connection to the CSI-2 receiver.
  31
  32 - port@0- Video source (mandatory)
  33         - endpoint@0 - sub-node describing the endpoint that is the video source
  34
  35 - port@1 - VIN instances (optional)
  36         - One endpoint sub-node for every R-Car VIN instance which is connected
  37           to the R-Car CSI-2 receiver.
  38
  39 Example:
  40
  41         csi20: csi2@fea80000 {
  42                 compatible = "renesas,r8a7796-csi2";
  43                 reg = <0 0xfea80000 0 0x10000>;
  44                 interrupts = <0 184 IRQ_TYPE_LEVEL_HIGH>;
  45                 clocks = <&cpg CPG_MOD 714>;
  46                 power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
  47                 resets = <&cpg 714>;
  48
  49                 ports {
  50                         #address-cells = <1>;
  51                         #size-cells = <0>;
  52
  53                         port@0 {
  54                                 #address-cells = <1>;
  55                                 #size-cells = <0>;
  56
  57                                 reg = <0>;
  58
  59                                 csi20_in: endpoint@0 {
  60                                         reg = <0>;
  61                                         clock-lanes = <0>;
  62                                         data-lanes = <1>;
  63                                         remote-endpoint = <&adv7482_txb>;
  64                                 };
  65                         };
  66
  67                         port@1 {
  68                                 #address-cells = <1>;
  69                                 #size-cells = <0>;
  70
  71                                 reg = <1>;
  72
  73                                 csi20vin0: endpoint@0 {
  74                                         reg = <0>;
  75                                         remote-endpoint = <&vin0csi20>;
  76                                 };
  77                                 csi20vin1: endpoint@1 {
  78                                         reg = <1>;
  79                                         remote-endpoint = <&vin1csi20>;
  80                                 };
  81                                 csi20vin2: endpoint@2 {
  82                                         reg = <2>;
  83                                         remote-endpoint = <&vin2csi20>;
  84                                 };
  85                                 csi20vin3: endpoint@3 {
  86                                         reg = <3>;
  87                                         remote-endpoint = <&vin3csi20>;
  88                                 };
  89                                 csi20vin4: endpoint@4 {
  90                                         reg = <4>;
  91                                         remote-endpoint = <&vin4csi20>;
  92                                 };
  93                                 csi20vin5: endpoint@5 {
  94                                         reg = <5>;
  95                                         remote-endpoint = <&vin5csi20>;
  96                                 };
  97                                 csi20vin6: endpoint@6 {
  98                                         reg = <6>;
  99                                         remote-endpoint = <&vin6csi20>;
 100                                 };
 101                                 csi20vin7: endpoint@7 {
 102                                         reg = <7>;
 103                                         remote-endpoint = <&vin7csi20>;
 104                                 };
 105                         };
 106                 };
 107         };