On Mon, May 04, 2020 at 10:44:12AM +0200, Oleksij Rempel wrote: > Hi all, > > here is first attempt to rework this binding. So far I have following > questions and/or issues: > - currently this PHY is identified by ID, not by compatible. Should it > be probed by compatible? > Theoretically I can use: > compatible = "nxp,tja1102", "ethernet-phy-ieee802.3-c22"; Hi Oleksij This will not work, in the current framework. PHYs probe via the ID registers, or ethernet-phy-id0141.0e90 like compatible strings. MDIO devices, which means devices like Ethernet switches, probe via compatible strings. There are a few old DT blobs which do have a compatible for the PHY, but they are white listed and ignored. See of_mdio.c, whitelist_phys and of_mdiobus_child_is_phy(). If the DT validation code is wrongly forcing you to have a compatible, i think your best bet is to use the ethernet-phy-id with the correct ID values. Andrew
