[Intel-gfx] [PATCH 1/8] drm/i915/dp: retry link status read 3 times on failure

[Eric Anholt]

On Fri,  1 Jul 2011 15:22:51 -0700, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:
> Especially after a hotplug or power status change, the sink may not
> reply immediately to a link status query.  So retry 3 times per the spec
> to really make sure nothing is there.

One thing we've been trying to do increasingly on the 3D side is cite
chapter and verse in comments when we're doing something "per the spec"
(which spec here?).  Clarifies whether it was some crazy workaround
copying what the BIOS did at one point vs. something that we really are
supposed to do.
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