[Intel-gfx] [PATCH 0/2] drm/i915/dp: native aux defer retry timeout & retry limit

[Jani Nikula]

These should fix the hang in the bug referenced in patch 2/2. Based on
some links the actual error might be a firmware bug in the docking
station, but we shouldn't trust on DP sinks to not keep replying aux
defer indefinitely.

Even with the docking station's firmware fixed, this may not be enough
to actually get the output working. They are branch devices, possibly
MST devices, which we still suck at.

But hey, at least we won't freeze the system.

The retry timeout and limit are in line with Thierry's dp aux series
[1], so this should in fact ease the transition by catching any
regressions caused by this change up front.

BR,
Jani.

[1] http://mid.gmane.org/1390332263-11974-1-git-send-email-treding@nvidia.com


Jani Nikula (2):
  drm/i915/dp: increase native aux defer retry timeout
  drm/i915/dp: add native aux defer retry limit

 drivers/gpu/drm/i915/intel_dp.c |   19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

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1.7.9.5