Laurent Pinchart | 53d7437 | 2014-09-24 22:09:46 +0300 | [diff] [blame] | 1 | Analog Device ADV7511(W)/13 HDMI Encoders |
| 2 | ----------------------------------------- |
| 3 | |
| 4 | The ADV7511, ADV7511W and ADV7513 are HDMI audio and video transmitters |
| 5 | compatible with HDMI 1.4 and DVI 1.0. They support color space conversion, |
| 6 | S/PDIF, CEC and HDCP. |
| 7 | |
| 8 | Required properties: |
| 9 | |
| 10 | - compatible: Should be one of "adi,adv7511", "adi,adv7511w" or "adi,adv7513" |
| 11 | - reg: I2C slave address |
| 12 | |
| 13 | The ADV7511 supports a large number of input data formats that differ by their |
| 14 | color depth, color format, clock mode, bit justification and random |
| 15 | arrangement of components on the data bus. The combination of the following |
| 16 | properties describe the input and map directly to the video input tables of the |
| 17 | ADV7511 datasheet that document all the supported combinations. |
| 18 | |
| 19 | - adi,input-depth: Number of bits per color component at the input (8, 10 or |
| 20 | 12). |
| 21 | - adi,input-colorspace: The input color space, one of "rgb", "yuv422" or |
| 22 | "yuv444". |
| 23 | - adi,input-clock: The input clock type, one of "1x" (one clock cycle per |
| 24 | pixel), "2x" (two clock cycles per pixel), "ddr" (one clock cycle per pixel, |
| 25 | data driven on both edges). |
| 26 | |
| 27 | The following input format properties are required except in "rgb 1x" and |
| 28 | "yuv444 1x" modes, in which case they must not be specified. |
| 29 | |
| 30 | - adi,input-style: The input components arrangement variant (1, 2 or 3), as |
| 31 | listed in the input format tables in the datasheet. |
| 32 | - adi,input-justification: The input bit justification ("left", "evenly", |
| 33 | "right"). |
| 34 | |
| 35 | Optional properties: |
| 36 | |
| 37 | - interrupts: Specifier for the ADV7511 interrupt |
| 38 | - pd-gpios: Specifier for the GPIO connected to the power down signal |
| 39 | |
| 40 | - adi,clock-delay: Video data clock delay relative to the pixel clock, in ps |
| 41 | (-1200 ps .. 1600 ps). Defaults to no delay. |
| 42 | - adi,embedded-sync: The input uses synchronization signals embedded in the |
| 43 | data stream (similar to BT.656). Defaults to separate H/V synchronization |
| 44 | signals. |
| 45 | |
| 46 | Required nodes: |
| 47 | |
| 48 | The ADV7511 has two video ports. Their connections are modelled using the OF |
| 49 | graph bindings specified in Documentation/devicetree/bindings/graph.txt. |
| 50 | |
| 51 | - Video port 0 for the RGB or YUV input |
| 52 | - Video port 1 for the HDMI output |
| 53 | |
| 54 | |
| 55 | Example |
| 56 | ------- |
| 57 | |
| 58 | adv7511w: hdmi@39 { |
| 59 | compatible = "adi,adv7511w"; |
| 60 | reg = <39>; |
| 61 | interrupt-parent = <&gpio3>; |
| 62 | interrupts = <29 IRQ_TYPE_EDGE_FALLING>; |
| 63 | |
| 64 | adi,input-depth = <8>; |
| 65 | adi,input-colorspace = "rgb"; |
| 66 | adi,input-clock = "1x"; |
| 67 | adi,input-style = <1>; |
| 68 | adi,input-justification = "evenly"; |
| 69 | |
| 70 | ports { |
| 71 | #address-cells = <1>; |
| 72 | #size-cells = <0>; |
| 73 | |
| 74 | port@0 { |
| 75 | reg = <0>; |
| 76 | adv7511w_in: endpoint { |
| 77 | remote-endpoint = <&dpi_out>; |
| 78 | }; |
| 79 | }; |
| 80 | |
| 81 | port@1 { |
| 82 | reg = <1>; |
| 83 | adv7511_out: endpoint { |
| 84 | remote-endpoint = <&hdmi_connector_in>; |
| 85 | }; |
| 86 | }; |
| 87 | }; |
| 88 | }; |