DPLL_CTRL1
intel_de_rmw(display, DPLL_CTRL1,
intel_de_posting_read(display, DPLL_CTRL1);
val = intel_de_read(display, DPLL_CTRL1);
intel_de_rmw(display, DPLL_CTRL1,
intel_de_posting_read(display, DPLL_CTRL1);
val = intel_de_read(display, DPLL_CTRL1);
val = intel_de_read(display, DPLL_CTRL1);
vgpu_vreg_t(vgpu, DPLL_CTRL1) =
vgpu_vreg_t(vgpu, DPLL_CTRL1) |=
switch ((vgpu_vreg_t(vgpu, DPLL_CTRL1) &
MMIO_D(DPLL_CTRL1);