On Mon, Jun 10, 2019 at 8:31 AM Andrew Lunn <andrew@xxxxxxx> wrote: > > > +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? The common schema could have 'phy: false'. This works as long as we've updated (or plan to) all the dts files to use phy-handle. The issue is how far back do you need kernels to work with newer dtbs. Rob