[Intel-gfx] [PATCH] drm/i915/vlv: don't wait for vblank after pipe enable

[Daniel Vetter]

On Tue, May 13, 2014 at 07:57:57AM -0700, Jesse Barnes wrote:
> On Tue, 13 May 2014 08:08:55 +0200
> Daniel Vetter <daniel at ffwll.ch> wrote:
> 
> > On Tue, May 13, 2014 at 12:37 AM, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:
> > > Like on ILK, the pipe won't be running until later on.
> > 
> > Like on ilk?! Since when is vlv display derived from that? "[PATCH
> > 3/4] drm/i915: Kill vblank waits after pipe enable on gmch platforms"
> > from Ville makes a more consistent impression to me. Also, and
> 
> Yeah that's fine too.  But of course BYT isn't just i915 legacy; it
> also includes some IBX logic on the port side.  So you can't just lump
> it in with i9xx all the time unfortuantely.  Either way it looks like
> Ville's patch will fix this too.

Hm, I've thought the dp/hdmi ports are from g4x and the pll stuff from the
cedarview ... it's a frankenstein for sure ;-)

> > Bugzilla: tags for this one?
> 
> Meh, this particular one only addresses an internal bug, and it looks
> like Ville didn't include a bz link either... did you add it when you
> committed?
> 
> https://bugs.freedesktop.org/show_bug.cgi?id=77297 looks like the closest.

Yeah, looks like a match, I'll add it. Although the bug also refers to
pch-split platforms ... I'll ask for retesting overall.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch