uctRRD           7650 drivers/gpu/drm/amd/include/atombios.h    UCHAR                     uctRRD;                  // tRRD
uctRRD           7680 drivers/gpu/drm/amd/include/atombios.h    UCHAR                      uctRRD;                // tRRD
uctRRD           7716 drivers/gpu/drm/amd/include/atombios.h    UCHAR                                  uctRRD;                  // tRRD
uctRRD           6460 drivers/gpu/drm/radeon/atombios.h 	UCHAR											 uctRRD;						// tRRD	
uctRRD           6490 drivers/gpu/drm/radeon/atombios.h 	UCHAR											 uctRRD;						// tRRD	
uctRRD           6523 drivers/gpu/drm/radeon/atombios.h 	UCHAR											 uctRRD;						// tRRD