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SubjectRe: [PATCH v2 1/2] arm64: dts: fsl: librem5: Add a device tree for the Librem5 devkit
> +	mdio {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + ethphy0: ethernet-phy@1 {
> + compatible = "ethernet-phy-ieee802.3-c22";

Hi Angus

This compatible string is optional. It won't warm, but it is not
needed.

> + reg = <1>;
> + power-supply = <&reg_3V3_P>;

I don't remember seeing a power-supply property in an Ethernet PHY
node before. What is using it? The PHY driver? Or the driver core
code?

Andrew

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