DDI_BUF_CTL_TC_PHY_OWNERSHIP
buf_ctl |= DDI_BUF_CTL_TC_PHY_OWNERSHIP;
intel_dp->DP |= DDI_BUF_CTL_TC_PHY_OWNERSHIP;
intel_de_rmw(display, DDI_BUF_CTL(port), DDI_BUF_CTL_TC_PHY_OWNERSHIP,
take ? DDI_BUF_CTL_TC_PHY_OWNERSHIP : 0);
return val & DDI_BUF_CTL_TC_PHY_OWNERSHIP;