ATOM_TRANSMITTER_CONFIG_V4_COHERENT 1438 drivers/gpu/drm/amd/include/atombios.h #define ATOM_TRANSMITTER_CONFIG_V4_COHERENT                      0x02
ATOM_TRANSMITTER_CONFIG_V4_COHERENT 1232 drivers/gpu/drm/radeon/atombios.h #define ATOM_TRANSMITTER_CONFIG_V4_COHERENT				          0x02