drm/i915/dp: do not write DP_TRAINING_PATTERN_SET all the time

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Neither the DP spec nor the compliance test spec state or imply that we
should write the DP_TRAINING_PATTERN_SET at every voltage swing and
pre-emphasis change. Indeed we probably shouldn't. So don't.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=49402
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Smoke-tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Jani Nikula 2013-09-27 15:10:44 +03:00 • committed by Daniel Vetter

parent 58c67ce9f0

commit 70aff66c95

1 changed files with 87 additions and 42 deletions

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drivers/gpu/drm/i915/intel_dp.c

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