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Sorry not following what the problem is. Yes this is hard block in silicon and it is silicon v1. > Why doesn't the compatible contain "xa2ve3288"? This unit can be used on different silicons too. > Why is this device not compatible with existing ones, since > gpio-lines-names appears to be the sole difference? There is no way how to detect gpio width. Pretty much soc_device_match() to some extend could be use to detect which silicon it runs but on this particular one you have 3 gpio controllers described by this binding (pmc, versal and eio). Thanks, Michal