ATOM_SET_VOLTAGE_PHASE 2646 drivers/gpu/drm/amd/include/atombios.h #define ATOM_SET_VOLTAGE_PHASE               4        //Set Vregulator Phase, only for SVID/PVID regulator
ATOM_SET_VOLTAGE_PHASE 2447 drivers/gpu/drm/amd/include/atomfirmware.h   ATOM_SET_VOLTAGE_PHASE = 4,
ATOM_SET_VOLTAGE_PHASE 2245 drivers/gpu/drm/radeon/atombios.h #define ATOM_SET_VOLTAGE_PHASE               4        //Set Vregulator Phase, only for SVID/PVID regulator