PCH_HBLANK_B
REG_WRITE(PCH_HBLANK_B, (adjusted_mode->crtc_hblank_start - 1) | ((adjusted_mode->crtc_hblank_end - 1) << 16));
hdmi_dev->savePCH_HBLANK_B = PSB_RVDC32(PCH_HBLANK_B);
PSB_WVDC32(hdmi_dev->savePCH_HBLANK_B, PCH_HBLANK_B);