> You'd be surprised how often this gets added to drivers precisely because > people will put it on a controllable supply. It may well not have it's own > supply but it may share one with a bunch of other external chips and > all of them need to use the regulator framework controls to make sure it's > only disabled when they are all suspended etc. I figured it might be something like this :-). I've added the vdd-supply binding in v5. If this isn't something that can be easily handled in the core, do you think we can document it somewhere as a convention/common idiom? (Assuming it's not already documented, of course). It seems like it's something that all IIO devices would need. I can do the writing part. Thanks, Alex