ATOM_DEVICE_DFP2I_INDEX 9110 drivers/gpu/drm/amd/include/atombios.h #define ATOM_DEVICE_DFP2I_SUPPORT          (0x1L << ATOM_DEVICE_DFP2I_INDEX)
ATOM_DEVICE_DFP2I_INDEX 7801 drivers/gpu/drm/radeon/atombios.h #define ATOM_DEVICE_DFP2I_SUPPORT          (0x1L << ATOM_DEVICE_DFP2I_INDEX)