From b34f1f0931575bf1e1483472a5202b8247fa9b10 Mon Sep 17 00:00:00 2001
From: Keith Packard <keithp@keithp.com>
Date: Wed, 2 Nov 2011 10:17:59 -0700
Subject: [PATCH] drm/i915: Initiate DP link training only on the lanes we'll
 be using

Limit the link training setting command to the lanes needed for the
current mode. It seems vaguely possible that a monitor will try to
train the other lanes and fail in some way, so this seems like the
safer plan.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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