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Ville Syrjälä committed 141670e9b43
drm: Move drm_format_num_planes() to drm_crtc.c There will be a need for this function in drm_crtc.c later. This avoids making drm_crtc.c depend on drm_crtc_helper.c. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>