On Wed, 2016-11-02 at 11:28 +0100, Mathieu Malaterre wrote:

This has been working great so far for `radeon.ko`, so I assumed I
could shamelessly copy the behavior over to `radeonfb.ko`.

The original reference I found was from Benjamin Herrenschmidt here:
https://lists.freedesktop.org/archives/dri-devel/2010-August/002907.h
tml

I am of course willing to try something else, but I would need some
guidance.

I missed your original patch but yes, the basic idea is that we kick
out offb when the "real" driver loads.

Cheers,
Ben.