ATOM_BIOS_FUNCTION_GET_DDC 8236 drivers/gpu/drm/amd/include/atombios.h #define ATOM_BIOS_FUNCTION_GET_DDC              0x0B
ATOM_BIOS_FUNCTION_GET_DDC 6966 drivers/gpu/drm/radeon/atombios.h #define ATOM_BIOS_FUNCTION_GET_DDC              0x0B