Use drm_dp_downstream_mode() to get a suitable mode for downstream
facing ports which don't have an EDID.
Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200904115354.25336-15-ville.syrjala@linux.intel.comReviewed-by: NLyude Paul <lyude@redhat.com>
Acked-by: NDaniel Vetter <daniel.vetter@ffwll.ch>