From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Tue, 10 Sep 2013 14:02:54 +0000 (+0300)
Subject: drm/i915: Add state readout and checking for has_dp_encoder and dp_m_n
X-Git-Tag: v3.13-rc1~76^2~114^2~58
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eb14cb747bc53465cbc93e54d9f19f49eed2c0c7;p=pandora-kernel.git

drm/i915: Add state readout and checking for has_dp_encoder and dp_m_n

Add functions to read out the CPU and PCH transcoder M/N values,
and use them to fill out the pipe config dp_m_n information. And
while at it populate has_dp_encoder too.

Also refactor ironlake_get_fdi_m_n_config() to simply call the new
intel_cpu_transcoder_get_m_n() function.

v2: Remember the DDI

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