https://bugs.freedesktop.org/show_bug.cgi?id=66963
--- Comment #63 from Daniel daisuke14164@gmail.com --- Created attachment 83484 --> https://bugs.freedesktop.org/attachment.cgi?id=83484&action=edit successfully booting and waking up from suspend to ram dmesg with dpm=1, RV620/M82 [Mobility Radeon HD 3450/3470
Latest commit works fine here.