From: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Mon, 7 Nov 2011 18:39:57 +0000 (-0800)
Subject: drm: try to restore previous CRTC config if mode set fails
X-Git-Tag: v3.2-rc2~24^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c5006cfe2f5fc3cc03ebe2342aaca83d051d99e0;p=pandora-kernel.git

drm: try to restore previous CRTC config if mode set fails

We restore the CRTC, encoder, and connector configurations, but if the
mode set failed, the attached display may have been turned off, so we
need to try set_config again to restore things to the way they were.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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