On 09/04/2022 15:18, H. Nikolaus Schaller wrote: hould have a specific compatible. >>> Please mention why it does not. >> >> Agreed. The "snps,dwc2" should be a fallback string, otherwise there is no way to uniquely identify the JZ4780 implementation of the IP. > > Well, there is no specifc implementation and driver for it. So no need to uniquely identify it. Specific implementation and driver are not arguments here. This does not matter. It's really unrelated argument. Bindings are not about implementation in Linux. Implementation can change, so bindings should also? Best regards, Krzysztof