[Intel-gfx] [PATCH 01/12] drm/i915: enable dip before writing data on gen4

[Daniel Vetter]

On Wed, May 02, 2012 at 10:55:43PM -0300, Paulo Zanoni wrote:
> From: Paulo Zanoni <paulo.r.zanoni at intel.com>
>
> While testing with the intel_infoframes tool on gen4, I see that when
> video DIP is disabled, what we write to the DATA memory is not exactly
> what we read back later. This should fix some problems that can be
> bisected to "drm/i915: fix ILK+ infoframe support". That commit was
> setting VIDEO_DIP_CTL to 0 when initializing, which caused the problem.
> Fixes fd.o bug 43947.
>
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=43947
> Cc: stable at kernel.org
>
> Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>
Picked up for -fixes, thanks for the patch. I've changed the commit
message a bit to make it clearer that this fixes a regression and to make
the offending commit stand out more.

For consistency when citing a commit that introduced a regression, please
paste the output of git show up to the headline of the commit.

Yours, Daniel
-- 
Daniel Vetter
Mail: daniel at ffwll.ch
Mobile: +41 (0)79 365 57 48