EVERGREEN_CRTC_BLANK_CONTROL
tmp = RREG32(EVERGREEN_CRTC_BLANK_CONTROL + crtc_offsets[i]);
WREG32(EVERGREEN_CRTC_BLANK_CONTROL + crtc_offsets[i], tmp);
tmp = RREG32(EVERGREEN_CRTC_BLANK_CONTROL + crtc_offsets[i]);
WREG32(EVERGREEN_CRTC_BLANK_CONTROL + crtc_offsets[i], tmp);