ATOM_TRANSMITTER_CONFIG_CLKSRC_PCIE 1201 drivers/gpu/drm/amd/include/atombios.h #define ATOM_TRANSMITTER_CONFIG_CLKSRC_PCIE         0x20
ATOM_TRANSMITTER_CONFIG_CLKSRC_PCIE  995 drivers/gpu/drm/radeon/atombios.h #define ATOM_TRANSMITTER_CONFIG_CLKSRC_PCIE			0x20