PCH_DP_C
intel_dp_port_enabled(dev_priv, PCH_DP_C, PORT_C, &panel_pipe);
assert_pch_dp_disabled(dev_priv, pipe, PORT_C, PCH_DP_C);
if (I915_READ(PCH_DP_C) & DP_DETECTED)
intel_dp_init(dev_priv, PCH_DP_C, PORT_C);