ATOM_BIOS_FUNCTION_DEVICE_DET 8240 drivers/gpu/drm/amd/include/atombios.h #define ATOM_BIOS_FUNCTION_DEVICE_DET           0x17
ATOM_BIOS_FUNCTION_DEVICE_DET 6970 drivers/gpu/drm/radeon/atombios.h #define ATOM_BIOS_FUNCTION_DEVICE_DET           0x17