display-timings.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/panel/display-timings.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: display timings bindings
    8 
    9 maintainers:
   10   - Thierry Reding <thierry.reding@gmail.com>
   11   - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
   12   - Sam Ravnborg <sam@ravnborg.org>
   13 
   14 description: |
   15   A display panel may be able to handle several display timings,
   16   with different resolutions.
   17   The display-timings node makes it possible to specify the timings
   18   and to specify the timing that is native for the display.
   19 
   20 properties:
   21   $nodename:
   22     const: display-timings
   23 
   24   native-mode:
   25     $ref: /schemas/types.yaml#/definitions/phandle
   26     description: |
   27       The default display timing is the one specified as native-mode.
   28       If no native-mode is specified then the first node is assumed
   29       to be the native mode.
   30 
   31 patternProperties:
   32   "^timing":
   33     type: object
   34     $ref: panel-timing.yaml#
   35 
   36 additionalProperties: false
   37 
   38 examples:
   39   - |+
   40 
   41     /*
   42      * Example that specifies panel timing using minimum, typical,
   43      * maximum values as commonly used in datasheet description.
   44      * timing1 is the native-mode.
   45      */
   46     display-timings {
   47         native-mode = <&timing1>;
   48         timing0 {
   49             /* 1920x1080p24 */
   50             clock-frequency = <148500000>;
   51             hactive = <1920>;
   52             vactive = <1080>;
   53             hsync-len = <0 44 60>;
   54             hfront-porch = <80 88 95>;
   55             hback-porch = <100 148 160>;
   56             vfront-porch = <0 4 6>;
   57             vback-porch = <0 36 50>;
   58             vsync-len = <0 5 6>;
   59         };
   60         timing1 {
   61             /* 1920x1080p24 */
   62             clock-frequency = <52000000>;
   63             hactive = <1920>;
   64             vactive = <1080>;
   65             hfront-porch = <25>;
   66             hback-porch = <25>;
   67             hsync-len = <0 25 25>;
   68             vback-porch = <2>;
   69             vfront-porch = <2>;
   70             vsync-len = <2>;
   71             hsync-active = <1>;
   72             pixelclk-active = <1>;
   73         };
   74     };
   75 
   76 ...

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/display/panel/display-timings.yaml

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sys/contrib/device-tree/Bindings/display/panel/display-timings.yaml