linux-sg2042/Documentation/devicetree/bindings/phy/meson-g12a-usb3-pcie-phy.txt

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* Amlogic G12A USB3 + PCIE Combo PHY binding
Required properties:
- compatible: Should be "amlogic,meson-g12a-usb3-pcie-phy"
- #phys-cells: must be 1. The cell number is used to select the phy mode
as defined in <dt-bindings/phy/phy.h> between PHY_TYPE_USB3 and PHY_TYPE_PCIE
- reg: The base address and length of the registers
- clocks: a phandle to the 100MHz reference clock of this PHY
- clock-names: must be "ref_clk"
- resets: phandle to the reset lines for the PHY control
- reset-names: must be "phy"
Example:
usb3_pcie_phy: phy@46000 {
compatible = "amlogic,g12a-usb3-pcie-phy";
reg = <0x0 0x46000 0x0 0x2000>;
clocks = <&clkc CLKID_PCIE_PLL>;
clock-names = "ref_clk";
resets = <&reset RESET_PCIE_PHY>;
reset-names = "phy";
#phy-cells = <1>;
};