> +required: > + - compatible > + - reg > + - interrupts > + - clocks > + - phy > + - allwinner,sram Quoting ethernet.txt: - phy: the same as "phy-handle" property, not recommended for new bindings. - phy-handle: phandle, specifies a reference to a node representing a PHY device; this property is described in the Devicetree Specification and so preferred; Can this be expressed in Yaml? Accept phy, but give a warning. Accept phy-handle without a warning? Enforce that one or the other is present? Thanks Andrew