diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index ee51985c3d15..24f7c2a9b707 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -4104,6 +4104,20 @@ intel_dp_mst_configure(struct intel_dp *intel_dp)
 	intel_dp->mst_detect = DRM_DP_SST;
 }
 
+static void
+intel_dp_mst_disconnect(struct intel_dp *intel_dp)
+{
+	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
+
+	if (!intel_dp->is_mst)
+		return;
+
+	drm_dbg_kms(&i915->drm, "MST device may have disappeared %d vs %d\n",
+		    intel_dp->is_mst, intel_dp->mst_mgr.mst_state);
+	intel_dp->is_mst = false;
+	drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr, intel_dp->is_mst);
+}
+
 static bool
 intel_dp_get_sink_irq_esi(struct intel_dp *intel_dp, u8 *esi)
 {
@@ -5779,15 +5793,7 @@ intel_dp_detect(struct drm_connector *connector,
 		memset(intel_connector->dp.dsc_dpcd, 0, sizeof(intel_connector->dp.dsc_dpcd));
 		intel_dp->psr.sink_panel_replay_support = false;
 
-		if (intel_dp->is_mst) {
-			drm_dbg_kms(&dev_priv->drm,
-				    "MST device may have disappeared %d vs %d\n",
-				    intel_dp->is_mst,
-				    intel_dp->mst_mgr.mst_state);
-			intel_dp->is_mst = false;
-			drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr,
-							intel_dp->is_mst);
-		}
+		intel_dp_mst_disconnect(intel_dp);
 
 		intel_dp_tunnel_disconnect(intel_dp);