[PATCH 2/2] drm/prime: Update docs

[Gerd Hoffmann]

  Hi,

> - Polish for all the functions and more cross references.

That is nice, helps figurung how all this works together without wading
through the source code (or at least less of it).

For that kind of changes it is probably helpful for review to generate
the diff with more context (say --unified=10), so it is easier to spot
the function where this doc update belongs to.

Acked-by: Gerd Hoffmann <kraxel at redhat.com>

cheers,
  Gerd