PCH_PIPEBSRC
REG_WRITE(PCH_PIPEBSRC, ((mode->crtc_hdisplay - 1) << 16) | (mode->crtc_vdisplay - 1));
hdmi_dev->savePCH_PIPEBSRC = PSB_RVDC32(PCH_PIPEBSRC);
PSB_WVDC32(hdmi_dev->savePCH_PIPEBSRC, PCH_PIPEBSRC);