diff options
author | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2014-09-24 22:09:46 +0300 |
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committer | Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> | 2014-11-26 20:09:40 +0200 |
commit | 53d7437acf641423e9bab3b97d95baca850d5159 (patch) | |
tree | 6471b4bac7817c9229388aa9748ba2e9fdf0c366 /Documentation/devicetree/bindings/video | |
parent | 18df89fef2d5c7cfd15ab898b17a292d00222b0c (diff) |
video: Add ADV751[13] DT bindings documentation
The ADV7511, ADV7511W and ADV7513 are HDMI audio and video transmitters
compatible with HDMI 1.4 and DVI 1.0. They're described in DT using the
OF graph bindings and a list of custom properties pertaining to the
input video bus configuration.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Diffstat (limited to 'Documentation/devicetree/bindings/video')
-rw-r--r-- | Documentation/devicetree/bindings/video/adi,adv7511.txt | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/video/adi,adv7511.txt b/Documentation/devicetree/bindings/video/adi,adv7511.txt new file mode 100644 index 000000000000..96c25ee01501 --- /dev/null +++ b/Documentation/devicetree/bindings/video/adi,adv7511.txt @@ -0,0 +1,88 @@ +Analog Device ADV7511(W)/13 HDMI Encoders +----------------------------------------- + +The ADV7511, ADV7511W and ADV7513 are HDMI audio and video transmitters +compatible with HDMI 1.4 and DVI 1.0. They support color space conversion, +S/PDIF, CEC and HDCP. + +Required properties: + +- compatible: Should be one of "adi,adv7511", "adi,adv7511w" or "adi,adv7513" +- reg: I2C slave address + +The ADV7511 supports a large number of input data formats that differ by their +color depth, color format, clock mode, bit justification and random +arrangement of components on the data bus. The combination of the following +properties describe the input and map directly to the video input tables of the +ADV7511 datasheet that document all the supported combinations. + +- adi,input-depth: Number of bits per color component at the input (8, 10 or + 12). +- adi,input-colorspace: The input color space, one of "rgb", "yuv422" or + "yuv444". +- adi,input-clock: The input clock type, one of "1x" (one clock cycle per + pixel), "2x" (two clock cycles per pixel), "ddr" (one clock cycle per pixel, + data driven on both edges). + +The following input format properties are required except in "rgb 1x" and +"yuv444 1x" modes, in which case they must not be specified. + +- adi,input-style: The input components arrangement variant (1, 2 or 3), as + listed in the input format tables in the datasheet. +- adi,input-justification: The input bit justification ("left", "evenly", + "right"). + +Optional properties: + +- interrupts: Specifier for the ADV7511 interrupt +- pd-gpios: Specifier for the GPIO connected to the power down signal + +- adi,clock-delay: Video data clock delay relative to the pixel clock, in ps + (-1200 ps .. 1600 ps). Defaults to no delay. +- adi,embedded-sync: The input uses synchronization signals embedded in the + data stream (similar to BT.656). Defaults to separate H/V synchronization + signals. + +Required nodes: + +The ADV7511 has two video ports. Their connections are modelled using the OF +graph bindings specified in Documentation/devicetree/bindings/graph.txt. + +- Video port 0 for the RGB or YUV input +- Video port 1 for the HDMI output + + +Example +------- + + adv7511w: hdmi@39 { + compatible = "adi,adv7511w"; + reg = <39>; + interrupt-parent = <&gpio3>; + interrupts = <29 IRQ_TYPE_EDGE_FALLING>; + + adi,input-depth = <8>; + adi,input-colorspace = "rgb"; + adi,input-clock = "1x"; + adi,input-style = <1>; + adi,input-justification = "evenly"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + adv7511w_in: endpoint { + remote-endpoint = <&dpi_out>; + }; + }; + + port@1 { + reg = <1>; + adv7511_out: endpoint { + remote-endpoint = <&hdmi_connector_in>; + }; + }; + }; + }; |