dfsdid           2525 drivers/gpu/drm/amd/include/atomfirmware.h   uint8_t dfsdid;             // =0: get DFS DID from register, >0, give DFS divider, (only valid when command == GET_SMU_CLOCK_INFO_V3_1_GET_CLOCK_FREQ )
dfsdid            503 drivers/gpu/drm/amd/powerplay/hwmgr/ppatomfwctrl.c 	parameters.dfsdid = 0;