ATOM_S2_DFP2I_DPMS_STATE 9121 drivers/gpu/drm/amd/include/atombios.h #define ATOM_S2_DFP2I_DPMS_STATE           0x02000000L
ATOM_S2_DFP2I_DPMS_STATE 7812 drivers/gpu/drm/radeon/atombios.h #define ATOM_S2_DFP2I_DPMS_STATE           0x02000000L