ATOM_ENCODER_CAP_RECORD_MST_EN 4832 drivers/gpu/drm/amd/include/atombios.h #define ATOM_ENCODER_CAP_RECORD_MST_EN 0x01 // from SI, this bit means DP MST is enable or not. ATOM_ENCODER_CAP_RECORD_MST_EN 718 drivers/gpu/drm/amd/include/atomfirmware.h ATOM_ENCODER_CAP_RECORD_MST_EN =0x01, // from SI, this bit means DP MST is enable or not.