cd6c88305f
Add HDA_AUDIO type and macro, drop DO_UPCAST(). Had to add a abstract hda audio class as parent for all hda-* variants to make that fly. Killed some init code duplication while being at it. Cc: Andreas Färber <afaerber@suse.de> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>