drm/nouveau/gm107: add voltage control using the new gk104 volt class

Let's ignore the other desktop Maxwells until I get my hands on one and confirm
that we still can change the voltage.

Signed-off-by: Martin Peres <martin.peres@free.fr>
This commit is contained in:
Martin Peres 2015-09-09 02:13:30 +02:00 • committed by Ben Skeggs
commit dc47700f7d