accelerants/radeon_hd/gpu.cpp

770 	uint32 ssControl;
776 				ssControl = Read32(OUT, EVERGREEN_P1PLL_SS_CNTL);
778 					ssControl |= EVERGREEN_PxPLL_SS_EN;
780 					ssControl &= ~EVERGREEN_PxPLL_SS_EN;
781 				Write32(OUT, EVERGREEN_P1PLL_SS_CNTL, ssControl);
785 				ssControl = Read32(OUT, EVERGREEN_P2PLL_SS_CNTL);
787 					ssControl |= EVERGREEN_PxPLL_SS_EN;
789 					ssControl &= ~EVERGREEN_PxPLL_SS_EN;
790 				Write32(OUT, EVERGREEN_P2PLL_SS_CNTL, ssControl);
799 				ssControl = Read32(OUT, AVIVO_P1PLL_INT_SS_CNTL);
801 					ssControl |= 1;
803 					ssControl &= ~1;
804 				Write32(OUT, AVIVO_P1PLL_INT_SS_CNTL, ssControl);
808 				ssControl = Read32(OUT, AVIVO_P2PLL_INT_SS_CNTL);
810 					ssControl |= 1;
812 					ssControl &= ~1;
813 				Write32(OUT, AVIVO_P2PLL_INT_SS_CNTL, ssControl);