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Diffstat (limited to 'Documentation/devicetree/bindings/display/bridge/adi,adv7511.txt')
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diff --git a/Documentation/devicetree/bindings/display/bridge/adi,adv7511.txt b/Documentation/devicetree/bindings/display/bridge/adi,adv7511.txt new file mode 100644 index 000000000..2c8875362 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/adi,adv7511.txt @@ -0,0 +1,142 @@ +Analog Device ADV7511(W)/13/33 HDMI Encoders +----------------------------------------- + +The ADV7511, ADV7511W, ADV7513 and ADV7533 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. ADV7533 supports the DSI interface for input pixels, while +the others support RGB interface. + +Required properties: + +- compatible: Should be one of: + "adi,adv7511" + "adi,adv7511w" + "adi,adv7513" + "adi,adv7533" + +- reg: I2C slave addresses + The ADV7511 internal registers are split into four pages exposed through + different I2C addresses, creating four register maps. Each map has it own + I2C address and acts as a standard slave device on the I2C bus. The main + address is mandatory, others are optional and revert to defaults if not + specified. + + +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"). + +- avdd-supply: A 1.8V supply that powers up the AVDD pin on the chip. +- dvdd-supply: A 1.8V supply that powers up the DVDD pin on the chip. +- pvdd-supply: A 1.8V supply that powers up the PVDD pin on the chip. +- dvdd-3v-supply: A 3.3V supply that powers up the pin called DVDD_3V + on the chip. +- bgvdd-supply: A 1.8V supply that powers up the BGVDD pin. This is + needed only for ADV7511. + +The following properties are required for ADV7533: + +- adi,dsi-lanes: Number of DSI data lanes connected to the DSI host. It should + be one of 1, 2, 3 or 4. +- a2vdd-supply: 1.8V supply that powers up the A2VDD pin on the chip. +- v3p3-supply: A 3.3V supply that powers up the V3P3 pin on the chip. +- v1p2-supply: A supply that powers up the V1P2 pin on the chip. It can be + either 1.2V or 1.8V. + +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. +- adi,disable-timing-generator: Only for ADV7533. Disables the internal timing + generator. The chip will rely on the sync signals in the DSI data lanes, + rather than generate its own timings for HDMI output. +- clocks: from common clock binding: reference to the CEC clock. +- clock-names: from common clock binding: must be "cec". +- reg-names : Names of maps with programmable addresses. + It can contain any map needing a non-default address. + Possible maps names are : "main", "edid", "cec", "packet" + +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, YUV or DSI input. In the case of ADV7533, the + remote endpoint phandle should be a reference to a valid mipi_dsi_host device + node. +- Video port 1 for the HDMI output +- Audio port 2 for the HDMI audio input + + +Example +------- + + adv7511w: hdmi@39 { + compatible = "adi,adv7511w"; + /* + * The EDID page will be accessible on address 0x66 on the I2C + * bus. All other maps continue to use their default addresses. + */ + reg = <0x39>, <0x66>; + reg-names = "main", "edid"; + interrupt-parent = <&gpio3>; + interrupts = <29 IRQ_TYPE_EDGE_FALLING>; + clocks = <&cec_clock>; + clock-names = "cec"; + + 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>; + }; + }; + + port@2 { + reg = <2>; + codec_endpoint: endpoint { + remote-endpoint = <&i2s0_cpu_endpoint>; + }; + }; + }; + }; |