DP_DETECTED
if ((I915_READ(DP_A) & DP_DETECTED) == 0)
if (!found && (I915_READ(PCH_DP_B) & DP_DETECTED))
if (I915_READ(PCH_DP_C) & DP_DETECTED)
if (I915_READ(PCH_DP_D) & DP_DETECTED)
if (I915_READ(VLV_DP_B) & DP_DETECTED || has_port)
if (I915_READ(VLV_DP_C) & DP_DETECTED || has_port)
if (I915_READ(CHV_DP_D) & DP_DETECTED || has_port)
if (IS_G4X(dev_priv) && (I915_READ(DP_D) & DP_DETECTED))
intel_dp->DP = I915_READ(intel_dp->output_reg) & DP_DETECTED;
DP = I915_READ(intel_dp->output_reg) & DP_DETECTED;