Peter,

PS. needs a bunch of testing, I do not have access to all the involved hw

First of all, thanks for diving into this topic and the huge effort you
apparently have put into it.

It is obviously a quite intrusive series, so it needs careful review.
TBH, I can't really tell when I have the bandwidth to do that, so I hope
other people will step up. And yes, it needs serious testing.

To all: Although I appreciate any review support, I'd think the first
thing to be done should be a very high level review - is this series
worth the huge update? Is the path chosen proper? Stuff like this. I'd
appreciate Acks or Revs for that. Stuff like fixing checkpatch warnings
and other minor stuff should come later.

Thanks,

   Wolfram