From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Wed, 4 Sep 2013 15:30:03 +0000 (+0300)
Subject: drm/i915: Add double_wide readout and checking
X-Git-Tag: v3.13-rc1~76^2~114^2~28
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=282740f73a93461645bb87cd62e428aa625619fb;p=pandora-kernel.git

drm/i915: Add double_wide readout and checking

Read the double wide pipe information from hardware in
i9xx_get_pipe_config(), and check it in intel_pipe_config_compare()

For gen4+ double_wide is always false so the comparison can be done
on all platforms.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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