USB PHY documentation

[Martin Blumenstingl]

On Wed, Aug 24, 2016 at 11:03 AM, jbrunet <jbrunet at baylibre.com> wrote:
> I'm still checking the otg controller.
I've seen that you made more changes in your github repo.
Maybe you could give me/us an update before your leave today so I can
continue where you left tonight/tomorrow.

How should we proceed with signed-off-by in these patches?
We have both written/changed a part of it, should we both simply add
our own SOB to the patches?