RADEON_CRTC2_DISP_REQ_EN_B
OUTREGP( regs, RADEON_CRTC2_GEN_CNTL, 0, ~RADEON_CRTC2_DISP_REQ_EN_B );
OUTREGP( regs, RADEON_CRTC2_GEN_CNTL, RADEON_CRTC2_DISP_REQ_EN_B,
~(RADEON_CRTC2_DISP_REQ_EN_B | RADEON_CRTC2_CUR_EN) );