CG_VCLK_CNTL     2101 drivers/gpu/drm/radeon/cikd.h #define CG_VCLK_CNTL			0xC05000A4
CG_VCLK_CNTL      380 drivers/gpu/drm/radeon/evergreend.h #define CG_VCLK_CNTL                                    0x618
CG_VCLK_CNTL      144 drivers/gpu/drm/radeon/sumod.h #define CG_VCLK_CNTL                                    0x618