Merge branch 'linux-4.16' of git://github.com/skeggsb/linux into drm-fixes

nouveau regression fixes.

* 'linux-4.16' of git://github.com/skeggsb/linux:
  drm/nouveau/bl: fix backlight regression
  drm/nouveau/bl: Fix oops on driver unbind
  drm/nouveau/mmu: ALIGN_DOWN correct variable