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     1 # SPDX-License-Identifier: (GPL-2.0-only)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/display/rockchip/rockchip-drm.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Rockchip DRM master device
    8 
    9 maintainers:
   10   - Sandy Huang <hjc@rock-chips.com>
   11   - Heiko Stuebner <heiko@sntech.de>
   12 
   13 description: |
   14   The Rockchip DRM master device is a virtual device needed to list all
   15   vop devices or other display interface nodes that comprise the
   16   graphics subsystem.
   17 
   18 properties:
   19   compatible:
   20     const: rockchip,display-subsystem
   21 
   22   ports:
   23     $ref: /schemas/types.yaml#/definitions/phandle-array
   24     items:
   25       maxItems: 1
   26     description: |
   27       Should contain a list of phandles pointing to display interface port
   28       of vop devices. vop definitions as defined in
   29       Documentation/devicetree/bindings/display/rockchip/rockchip-vop.yaml
   30 
   31 required:
   32   - compatible
   33   - ports
   34 
   35 additionalProperties: false
   36 
   37 examples:
   38   - |
   39     display-subsystem {
   40         compatible = "rockchip,display-subsystem";
   41         ports = <&vopl_out>, <&vopb_out>;
   42     };
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