DDI_BUF_CTL
i915_reg_t reg = DDI_BUF_CTL(port);
I915_WRITE(DDI_BUF_CTL(PORT_E),
POSTING_READ(DDI_BUF_CTL(PORT_E));
temp = I915_READ(DDI_BUF_CTL(PORT_E));
I915_WRITE(DDI_BUF_CTL(PORT_E), temp);
POSTING_READ(DDI_BUF_CTL(PORT_E));
tmp = I915_READ(DDI_BUF_CTL(port));
val = I915_READ(DDI_BUF_CTL(port));
I915_WRITE(DDI_BUF_CTL(port), val);
I915_WRITE(DDI_BUF_CTL(port),
val = I915_READ(DDI_BUF_CTL(port));
I915_WRITE(DDI_BUF_CTL(port), val);
I915_WRITE(DDI_BUF_CTL(port), intel_dp->DP);
POSTING_READ(DDI_BUF_CTL(port));
intel_dig_port->dp.output_reg = DDI_BUF_CTL(port);
intel_dig_port->hdmi.hdmi_reg = DDI_BUF_CTL(port);
if (I915_READ(DDI_BUF_CTL(PORT_A)) & DDI_A_4_LANES)
intel_dig_port->saved_port_bits = I915_READ(DDI_BUF_CTL(port)) &
intel_dig_port->saved_port_bits = I915_READ(DDI_BUF_CTL(port)) &
if (HAS_DDI(dev_priv) && I915_READ(DDI_BUF_CTL(PORT_A)) & DDI_A_4_LANES)
found = I915_READ(DDI_BUF_CTL(PORT_A)) & DDI_INIT_DISPLAY_DETECTED;