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