xlnx,video.txt

 1Xilinx Video IP Pipeline (VIPP)
 2-------------------------------
 3
 4General concept
 5---------------
 6
 7Xilinx video IP pipeline processes video streams through one or more Xilinx
 8video IP cores. Each video IP core is represented as documented in video.txt
 9and IP core specific documentation, xlnx,v-*.txt, in this directory. The DT
10node of the VIPP represents as a top level node of the pipeline and defines
11mappings between DMAs and the video IP cores.
12
13Required 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
24Required port properties:
25
26- direction: should be either "input" or "output" depending on the direction
27  of stream.
28
29Example:
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	};