diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 0400825a9d2e..ac8700b4e6e2 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1641,6 +1641,9 @@ static void intel_ddi_pre_enable(struct intel_encoder *intel_encoder)
 
 		intel_ddi_init_dp_buf_reg(intel_encoder);
 
+		WARN_ON(intel_dp->active_streams != 0);
+		intel_dp->active_streams++;
+
 		intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
 		intel_dp_start_link_train(intel_dp);
 		if (port != PORT_A || INTEL_INFO(dev_priv)->gen >= 9)
@@ -1767,6 +1770,13 @@ static void intel_disable_ddi(struct intel_encoder *intel_encoder)
 		intel_psr_disable(intel_dp);
 		intel_edp_backlight_off(intel_dp);
 	}
+
+	if (type == INTEL_OUTPUT_DP || type == INTEL_OUTPUT_EDP) {
+		struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+
+		intel_dp->active_streams--;
+		WARN_ON(intel_dp->active_streams != 0);
+	}
 }
 
 bool bxt_ddi_phy_is_enabled(struct drm_i915_private *dev_priv,
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index b2458705de6e..38f20339ad10 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2685,6 +2685,9 @@ static void intel_enable_dp(struct intel_encoder *encoder)
 				    lane_mask);
 	}
 
+	WARN_ON(intel_dp->active_streams != 0);
+	intel_dp->active_streams++;
+
 	intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
 	intel_dp_start_link_train(intel_dp);
 	intel_dp_stop_link_train(intel_dp);
@@ -3344,6 +3347,9 @@ intel_dp_link_down(struct intel_dp *intel_dp)
 
 	DRM_DEBUG_KMS("\n");
 
+	intel_dp->active_streams--;
+	WARN_ON(intel_dp->active_streams != 0);
+
 	if ((IS_GEN7(dev) && port == PORT_A) ||
 	    (HAS_PCH_CPT(dev) && port != PORT_A)) {
 		DP &= ~DP_LINK_TRAIN_MASK_CPT;
@@ -3833,7 +3839,7 @@ go_again:
 		if (bret == true) {
 
 			/* check link status - esi[10] = 0x200c */
-			if (intel_dp->active_mst_links &&
+			if (intel_dp->active_streams &&
 			    !drm_dp_channel_eq_ok(&esi[10], intel_dp->lane_count)) {
 				DRM_DEBUG_KMS("channel EQ not ok, retraining\n");
 				intel_dp_start_link_train(intel_dp);
diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index 629337dbca3d..0beca9197a1f 100644
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -99,7 +99,7 @@ static void intel_mst_disable_dp(struct intel_encoder *encoder)
 	struct intel_dp *intel_dp = &intel_dig_port->dp;
 	int ret;
 
-	DRM_DEBUG_KMS("%d\n", intel_dp->active_mst_links);
+	DRM_DEBUG_KMS("%d\n", intel_dp->active_streams);
 
 	drm_dp_mst_reset_vcpi_slots(&intel_dp->mst_mgr, intel_mst->connector->port);
 
@@ -115,7 +115,7 @@ static void intel_mst_post_disable_dp(struct intel_encoder *encoder)
 	struct intel_digital_port *intel_dig_port = intel_mst->primary;
 	struct intel_dp *intel_dp = &intel_dig_port->dp;
 
-	DRM_DEBUG_KMS("%d\n", intel_dp->active_mst_links);
+	DRM_DEBUG_KMS("%d\n", intel_dp->active_streams);
 
 	/* this can fail */
 	drm_dp_check_act_status(&intel_dp->mst_mgr);
@@ -124,10 +124,10 @@ static void intel_mst_post_disable_dp(struct intel_encoder *encoder)
 
 	drm_dp_mst_deallocate_vcpi(&intel_dp->mst_mgr, intel_mst->connector->port);
 
-	intel_dp->active_mst_links--;
+	intel_dp->active_streams--;
 
 	intel_mst->connector = NULL;
-	if (intel_dp->active_mst_links == 0) {
+	if (intel_dp->active_streams == 0) {
 		intel_dig_port->base.post_disable(&intel_dig_port->base);
 		intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF);
 	}
@@ -165,11 +165,11 @@ static void intel_mst_pre_enable_dp(struct intel_encoder *encoder)
 	 */
 	found->encoder = encoder;
 
-	DRM_DEBUG_KMS("%d\n", intel_dp->active_mst_links);
+	DRM_DEBUG_KMS("%d\n", intel_dp->active_streams);
 
 	intel_mst->connector = found;
 
-	if (intel_dp->active_mst_links == 0) {
+	if (intel_dp->active_streams == 0) {
 		intel_ddi_clk_select(&intel_dig_port->base, intel_crtc->config);
 
 		intel_prepare_dp_ddi_buffers(&intel_dig_port->base);
@@ -193,7 +193,7 @@ static void intel_mst_pre_enable_dp(struct intel_encoder *encoder)
 	}
 
 
-	intel_dp->active_mst_links++;
+	intel_dp->active_streams++;
 	temp = I915_READ(DP_TP_STATUS(port));
 	I915_WRITE(DP_TP_STATUS(port), temp);
 
@@ -210,7 +210,7 @@ static void intel_mst_enable_dp(struct intel_encoder *encoder)
 	enum port port = intel_dig_port->port;
 	int ret;
 
-	DRM_DEBUG_KMS("%d\n", intel_dp->active_mst_links);
+	DRM_DEBUG_KMS("%d\n", intel_dp->active_streams);
 
 	if (intel_wait_for_register(dev_priv,
 				    DP_TP_STATUS(port),
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 55af7f088a4a..b846623a5a1f 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -894,7 +894,7 @@ struct intel_dp {
 
 	bool can_mst; /* this port supports mst */
 	bool is_mst;
-	int active_mst_links;
+	int active_streams; /* number of active streams (for SST and MST both) */
 	/* connector directly attached - won't be use for modeset in mst world */
 	struct intel_connector *attached_connector;