1 DT bindings for Xilinx video IP cores 1 DT bindings for Xilinx video IP cores
2 ------------------------------------- 2 -------------------------------------
3 3
4 Xilinx video IP cores process video streams by 4 Xilinx video IP cores process video streams by acting as video sinks and/or
5 sources. They are connected by links through t 5 sources. They are connected by links through their input and output ports,
6 creating a video pipeline. 6 creating a video pipeline.
7 7
8 Each video IP core is represented by an AMBA b 8 Each video IP core is represented by an AMBA bus child node in the device
9 tree using bindings documented in this directo 9 tree using bindings documented in this directory. Connections between the IP
10 cores are represented as defined in ../video-i 10 cores are represented as defined in ../video-interfaces.txt.
11 11
12 The whole pipeline is represented by an AMBA 12 The whole pipeline is represented by an AMBA bus child node in the device
13 tree using bindings documented in ./xlnx,video 13 tree using bindings documented in ./xlnx,video.txt.
14 14
15 Common properties 15 Common properties
16 ----------------- 16 -----------------
17 17
18 The following properties are common to all Xil 18 The following properties are common to all Xilinx video IP cores.
19 19
20 - xlnx,video-format: This property represents 20 - xlnx,video-format: This property represents a video format transmitted on an
21 AXI bus between video IP cores, using its VF 21 AXI bus between video IP cores, using its VF code as defined in "AXI4-Stream
22 Video IP and System Design Guide" [UG934]. H 22 Video IP and System Design Guide" [UG934]. How the format relates to the IP
23 core is described in the IP core bindings do 23 core is described in the IP core bindings documentation.
24 24
25 - xlnx,video-width: This property qualifies th 25 - xlnx,video-width: This property qualifies the video format with the sample
26 width expressed as a number of bits per pixe 26 width expressed as a number of bits per pixel component. All components must
27 use the same width. 27 use the same width.
28 28
29 - xlnx,cfa-pattern: When the video format is s 29 - xlnx,cfa-pattern: When the video format is set to Mono/Sensor, this property
30 describes the sensor's color filter array pa 30 describes the sensor's color filter array pattern. Supported values are
31 "bggr", "gbrg", "grbg", "rggb" and "mono". I 31 "bggr", "gbrg", "grbg", "rggb" and "mono". If not specified, the pattern
32 defaults to "mono". 32 defaults to "mono".
33 33
34 34
35 [UG934] https://www.xilinx.com/support/documen !! 35 [UG934] http://www.xilinx.com/support/documentation/ip_documentation/axi_videoip/v1_0/ug934_axi_videoIP.pdf
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