drm/i915: Clean up DDI DDC/AUX CH sanitation
Now that we use the AUX and GMBUS assignment from VBT for all ports, let's clean up the sanitization of the port information a bit. Previosuly we only did this for port E, and only complained about a non-standard assignment for the other ports. But as we know that non-standard assignments are a fact of life, let's expand the sanitization to all the ports. v2: Include a commit message, fix up the comments a bit v3: Don't clobber other ports if the current port has no alternate aux ch/ddc pin Cc: stable@vger.kernel.org Cc: Maarten Maathuis <madman2003@gmail.com> Tested-by: NMaarten Maathuis <madman2003@gmail.com> References: https://bugs.freedesktop.org/show_bug.cgi?id=97877Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1476208368-5710-4-git-send-email-ville.syrjala@linux.intel.com Reviewed-by: Jim Bride <jim.bride@linux.intel.com> (v2) (cherry picked from commit 9454fa87) Signed-off-by: NJani Nikula <jani.nikula@intel.com>
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