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