ATOM_TRANSMITTER_CONFIG_V5_REFCLK_SRC_EXT 1544 drivers/gpu/drm/amd/include/atombios.h #define ATOM_TRANSMITTER_CONFIG_V5_REFCLK_SRC_EXT           0x0c
ATOM_TRANSMITTER_CONFIG_V5_REFCLK_SRC_EXT 1338 drivers/gpu/drm/radeon/atombios.h #define ATOM_TRANSMITTER_CONFIG_V5_REFCLK_SRC_EXT           0x0c