arm,hdlcd.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/display/arm,hdlcd.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Arm HDLCD display controller binding
    8 
    9 maintainers:
   10   - Liviu Dudau <Liviu.Dudau@arm.com>
   11   - Andre Przywara <andre.przywara@arm.com>
   12 
   13 description:
   14   The Arm HDLCD is a display controller found on several development platforms
   15   produced by ARM Ltd and in more modern of its Fast Models. The HDLCD is an
   16   RGB streamer that reads the data from a framebuffer and sends it to a single
   17   digital encoder (DVI or HDMI).
   18 
   19 properties:
   20   compatible:
   21     const: arm,hdlcd
   22 
   23   reg:
   24     maxItems: 1
   25 
   26   interrupts:
   27     maxItems: 1
   28 
   29   clock-names:
   30     const: pxlclk
   31 
   32   clocks:
   33     maxItems: 1
   34     description: The input reference for the pixel clock.
   35 
   36   memory-region:
   37     maxItems: 1
   38     description:
   39       Phandle to a node describing memory to be used for the framebuffer.
   40       If not present, the framebuffer may be located anywhere in memory.
   41 
   42   iommus:
   43     maxItems: 1
   44 
   45   port:
   46     $ref: /schemas/graph.yaml#/properties/port
   47     unevaluatedProperties: false
   48     description:
   49       Output endpoint of the controller, connecting the LCD panel signals.
   50 
   51 additionalProperties: false
   52 
   53 required:
   54   - compatible
   55   - reg
   56   - interrupts
   57   - clocks
   58   - port
   59 
   60 examples:
   61   - |
   62     hdlcd@2b000000 {
   63         compatible = "arm,hdlcd";
   64         reg = <0x2b000000 0x1000>;
   65         interrupts = <0 85 4>;
   66         clocks = <&oscclk5>;
   67         clock-names = "pxlclk";
   68         port {
   69             hdlcd_output: endpoint {
   70                 remote-endpoint = <&hdmi_enc_input>;
   71             };
   72         };
   73     };
   74 
   75     /* HDMI encoder on I2C bus */
   76     i2c {
   77         #address-cells = <1>;
   78         #size-cells = <0>;
   79         hdmi-transmitter@70 {
   80             compatible = "nxp,tda998x";
   81             reg = <0x70>;
   82             port {
   83                 hdmi_enc_input: endpoint {
   84                     remote-endpoint = <&hdlcd_output>;
   85                 };
   86             };
   87         };
   88     };
   89 ...

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sys/contrib/device-tree/Bindings/display/arm,hdlcd.yaml