Re: Call for Testing: Switching back to our BSD licensed dtc(1)

On 20 Jul 2016, at 05:48, Warner Losh <imp_at_bsdimp.com> wrote:
> 
> My concern with this is overlay support. Overlay support for "shields" or
> "badges" is going into upstream GPL dtc shortly. The patches have been
> kicking around for a while and are almost ready to go in. We need this feature
> and I'd planned on bringing it into the tree as soon as it goes into the git
> repo. It's sorely needed for things like RPi and BBB that make it super
> easy to add boards with parts that need a bit more DTB into the FDT to
> describe them. There's been patches to bring this functionality into the
> loader and into the in-tree gpl dtc floating around for a while now.

Is the syntax / semantics for overlays documented somewhere?

David