Bindings/media/xilinx/xlnx,video.txt

   1 Xilinx Video IP Pipeline (VIPP)
   2 -------------------------------
   3
   4 General concept
   5 ---------------
   6
   7 Xilinx video IP pipeline processes video streams through one or more Xilinx
   8 video IP cores. Each video IP core is represented as documented in video.txt
   9 and IP core specific documentation, xlnx,v-*.txt, in this directory. The DT
  10 node of the VIPP represents as a top level node of the pipeline and defines
  11 mappings between DMAs and the video IP cores.
  12
  13 Required properties:
  14
  15 - compatible: Must be "xlnx,video".
  16
  17 - dmas, dma-names: List of one DMA specifier and identifier string (as defined
  18   in Documentation/devicetree/bindings/dma/dma.txt) per port. Each port
  19   requires a DMA channel with the identifier string set to "port" followed by
  20   the port index.
  21
  22 - ports: Video port, using the DT bindings defined in ../video-interfaces.txt.
  23
  24 Required port properties:
  25
  26 - direction: should be either "input" or "output" depending on the direction
  27   of stream.
  28
  29 Example:
  30
  31         video_cap {
  32                 compatible = "xlnx,video";
  33                 dmas = <&vdma_1 1>, <&vdma_3 1>;
  34                 dma-names = "port0", "port1";
  35
  36                 ports {
  37                         #address-cells = <1>;
  38                         #size-cells = <0>;
  39
  40                         port@0 {
  41                                 reg = <0>;
  42                                 direction = "input";
  43                                 vcap0_in0: endpoint {
  44                                         remote-endpoint = <&scaler0_out>;
  45                                 };
  46                         };
  47                         port@1 {
  48                                 reg = <1>;
  49                                 direction = "input";
  50                                 vcap0_in1: endpoint {
  51                                         remote-endpoint = <&switch_out1>;
  52                                 };
  53                         };
  54                 };
  55         };