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Rockchip PCIE PHY
-----------------------

Required properties:
 - compatible: rockchip,rk3399-pcie-phy
 - #phy-cells: must be 0
 - clocks: Must contain an entry in clock-names.
	See ../clocks/clock-bindings.txt for details.
 - clock-names: Must be "refclk"
 - resets: Must contain an entry in reset-names.
	See ../reset/reset.txt for details.
 - reset-names: Must be "phy"

Example:

grf: syscon@ff770000 {
	compatible = "rockchip,rk3399-grf", "syscon", "simple-mfd";
	#address-cells = <1>;
	#size-cells = <1>;

	...

	pcie_phy: pcie-phy {
		compatible = "rockchip,rk3399-pcie-phy";
		#phy-cells = <0>;
		clocks = <&cru SCLK_PCIEPHY_REF>;
		clock-names = "refclk";
		resets = <&cru SRST_PCIEPHY>;
		reset-names = "phy";
	};
};