78 lines
2.1 KiB
YAML
78 lines
2.1 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/display/panel/display-timings.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: display timings bindings
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maintainers:
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- Thierry Reding <thierry.reding@gmail.com>
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- Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
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- Sam Ravnborg <sam@ravnborg.org>
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description: |
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A display panel may be able to handle several display timings,
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with different resolutions.
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The display-timings node makes it possible to specify the timings
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and to specify the timing that is native for the display.
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properties:
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$nodename:
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const: display-timings
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native-mode:
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$ref: /schemas/types.yaml#/definitions/phandle
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description: |
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The default display timing is the one specified as native-mode.
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If no native-mode is specified then the first node is assumed
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to be the native mode.
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patternProperties:
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"^timing":
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type: object
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allOf:
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- $ref: panel-timing.yaml#
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additionalProperties: false
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examples:
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- |+
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/*
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* Example that specifies panel timing using minimum, typical,
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* maximum values as commonly used in datasheet description.
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* timing1 is the native-mode.
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*/
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display-timings {
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native-mode = <&timing1>;
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timing0 {
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/* 1920x1080p24 */
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clock-frequency = <148500000>;
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hactive = <1920>;
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vactive = <1080>;
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hsync-len = <0 44 60>;
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hfront-porch = <80 88 95>;
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hback-porch = <100 148 160>;
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vfront-porch = <0 4 6>;
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vback-porch = <0 36 50>;
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vsync-len = <0 5 6>;
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};
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timing1 {
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/* 1920x1080p24 */
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clock-frequency = <52000000>;
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hactive = <1920>;
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vactive = <1080>;
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hfront-porch = <25>;
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hback-porch = <25>;
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hsync-len = <0 25 25>;
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vback-porch = <2>;
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vfront-porch = <2>;
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vsync-len = <2>;
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hsync-active = <1>;
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pixelclk-active = <1>;
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};
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};
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...
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