From 4874322e78d505d38c8d4481118af5c9f0e8306d Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Sat, 31 May 2014 01:48:06 +1000
Subject: [PATCH] drm/nouveau/dp: fix support for dpms

SOR_PWR has no effect to power-off DP links, unlike other SOR protocols.

Instead, on the source side, we cut power to the lanes after having put
the sink into D3.  Link training takes care of everything required to
bring it back again.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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