> Indeed, but I don't understand why the phy in this example does not > have a compatible string? Normally, PHYs can be enumerated on the bus, in the same way USB and PCI devices can be enumerated. The device itself then tells you what it is campatible with, in the same way PCI and USB does. Having a compatible string is then detrimental, because people get it wrong, device tree says one thing, the device itself says something else, which do we trust? There are also boards where different series of have populated with different pin compatible PHYs. Enumeration just works, having a compatible would be a problem. But, there are some PHYs which you cannot enumerate, e.g they do not respond to MDIO while held in reset, or the silicon is buggy and has an invalid ID. In those cases, a compatible should be listed with the correct PHY ID. Andrew
