drm/i915: Only populate aux_ch if really needed
Mixing VBT based AUX CH with platform defaults seems like a recipe for conflicts. Let's only populate AUX CH if we absolutely need it, that is only if we are dealing with a DP output or a TC port (which need it due to some power well shenanigans). TODO: double check that real VBTs do in fact populate the AUX CH for HDMI TC legacy ports... Reviewed-by: NJani Nikula <jani.nikula@intel.com> Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230630155846.29931-3-ville.syrjala@linux.intel.com
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