From: Jani Nikula <jani.nikula@intel.com>
Date: Fri, 27 Sep 2013 12:10:44 +0000 (+0300)
Subject: drm/i915/dp: do not write DP_TRAINING_PATTERN_SET all the time
X-Git-Tag: v3.13-rc1~76^2~80^2~18
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=70aff66c953054334bf0569696901c13e206ade6;p=pandora-kernel.git

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

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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