DPLL_CTRL2_DDI_SEL_OVERRIDE
DPLL_CTRL2_DDI_SEL_OVERRIDE(port));
if ((tmp & DPLL_CTRL2_DDI_SEL_OVERRIDE(port)) == 0)
DPLL_CTRL2_DDI_SEL_OVERRIDE(PORT_B);
DPLL_CTRL2_DDI_SEL_OVERRIDE(PORT_C);
DPLL_CTRL2_DDI_SEL_OVERRIDE(PORT_D);
(vgpu_vreg_t(vgpu, DPLL_CTRL2) & DPLL_CTRL2_DDI_SEL_OVERRIDE(port))) {