Rockchip DRM master device
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================================
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The Rockchip DRM master device is a virtual device needed to list all
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vop devices or other display interface nodes that comprise the
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graphics subsystem.
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Required properties:
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- compatible: Should be "rockchip,display-subsystem"
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- ports: Should contain a list of phandles pointing to display interface port
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of vop devices. vop definitions as defined in
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Documentation/devicetree/bindings/display/rockchip/rockchip-vop.txt
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Optional properties
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- secure-memory-region: phandle to a node describing secure memory
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- clocks: include clock specifiers corresponding to entries in the
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clock-names property.
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- clock-names: optional include
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hdmi-tmds-pll: special pll required by some hdmi-vop design,
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if there is no hdmi plug, also can reuse for
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common display pll.
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default-vop-pll: common display pll.
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example:
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display-subsystem {
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compatible = "rockchip,display-subsystem";
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ports = <&vopl_out>, <&vopb_out>;
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clocks = <&cru PLL_VPLL>, <&cru PLL_CPLL>;
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clock-names = "hdmi-tmds-pll", "default-vop-pll";
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};
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