ATOM_TRANSMITTER_V6_HPD4_SEL 1598 drivers/gpu/drm/amd/include/atombios.h #define ATOM_TRANSMITTER_V6_HPD4_SEL                        0x04
ATOM_TRANSMITTER_V6_HPD4_SEL 3057 drivers/gpu/drm/amd/include/atomfirmware.h   ATOM_TRANSMITTER_V6_HPD4_SEL                    = 0x04,