On Tue, 28 Aug 2012 09:53:36 +0300, Jani Nikula <jani.nikula at intel.com> wrote: > From: Daniel Vetter <daniel.vetter at ffwll.ch> > > This is a prep patch to stop drm/i915 from changing the LBPC registers > itself - but we still need to properly save/restore it on > suspend/resume. My presumption was that there were BIOSes out there that only adjusted the LBPC values, and so any device setting that flag would likely only with it through the BIOS hotkeys. I couldn't see any other rational reason for the hardware maintaining multiple interfaces... -Chris -- Chris Wilson, Intel Open Source Technology Centre
