usDefaultMVDDC   7772 drivers/gpu/drm/amd/include/atombios.h   USHORT                     usDefaultMVDDC;      // board dependent parameter:Default Memory IO Voltage
usDefaultMVDDC   6578 drivers/gpu/drm/radeon/atombios.h   USHORT                     usDefaultMVDDC;		// board dependent parameter:Default Memory IO Voltage