dt-bindings: add document for rockchip dp phy
Add dt binding documentation for rockchip display port PHY. Signed-off-by: Yakir Yang <ykk@rock-chips.com> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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Documentation/devicetree/bindings/phy
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Rockchip specific extensions to the Analogix Display Port PHY
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------------------------------------
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Required properties:
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- compatible : should be one of the following supported values:
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- "rockchip.rk3288-dp-phy"
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- clocks: from common clock binding: handle to dp clock.
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of memory mapped region.
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- clock-names: from common clock binding:
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Required elements: "24m"
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- rockchip,grf: phandle to the syscon managing the "general register files"
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- #phy-cells : from the generic PHY bindings, must be 0;
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Example:
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edp_phy: edp-phy {
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compatible = "rockchip,rk3288-dp-phy";
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rockchip,grf = <&grf>;
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clocks = <&cru SCLK_EDP_24M>;
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clock-names = "24m";
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#phy-cells = <0>;
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};
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