diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index 4a897c326aab..a9c52657eb4b 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -1738,7 +1738,7 @@ static enum dc_status enable_link_dp_mst(
 	/* sink signal type after MST branch is MST. Multiple MST sinks
 	 * share one link. Link DP PHY is enable or training only once.
 	 */
-	if (link->cur_link_settings.lane_count != LANE_COUNT_UNKNOWN)
+	if (link->link_status.link_active)
 		return DC_OK;
 
 	/* clear payload table */
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
index 90c85b3e859b..4c230f1de9a3 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -1530,6 +1530,8 @@ static void power_down_encoders(struct dc *dc)
 				dc->links[i]->link_enc, signal);
 
 		dc->links[i]->link_status.link_active = false;
+		memset(&dc->links[i]->cur_link_settings, 0,
+				sizeof(dc->links[i]->cur_link_settings));
 	}
 }