Commits
Ville Syrjälä committed 23ec0a8835f
drm/i915: Warn if trying to poke a VLV backlight on invalid pipe VLV/CHV have backlight controls only on pipes A and B. Bail out without touching registers that don't exist, and print a warning. 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>