1Rockchip DRM master device
2================================
3
4The Rockchip DRM master device is a virtual device needed to list all
5vop devices or other display interface nodes that comprise the
6graphics subsystem.
7
8Required properties:
9- compatible: Should be "rockchip,display-subsystem"
10- ports: Should contain a list of phandles pointing to display interface port
11  of vop devices. vop definitions as defined in
12  Documentation/devicetree/bindings/video/rockchip-vop.txt
13
14example:
15
16display-subsystem {
17	compatible = "rockchip,display-subsystem";
18	ports = <&vopl_out>, <&vopb_out>;
19};
20