diff --git a/drivers/gpu/drm/rockchip/dw-dp.c b/drivers/gpu/drm/rockchip/dw-dp.c
index d26c01ce8771..910e52dc578e 100644
--- a/drivers/gpu/drm/rockchip/dw-dp.c
+++ b/drivers/gpu/drm/rockchip/dw-dp.c
@@ -3264,9 +3264,13 @@ static void _dw_dp_loader_protect(struct dw_dp *dp, bool on)
 			break;
 		}
 
+		extcon_set_state_sync(dp->audio->extcon, EXTCON_DISP_DP, true);
+		dw_dp_audio_handle_plugged_change(dp->audio, true);
 		phy_power_on(dp->phy);
 	} else {
 		phy_power_off(dp->phy);
+		extcon_set_state_sync(dp->audio->extcon, EXTCON_DISP_DP, false);
+		dw_dp_audio_handle_plugged_change(dp->audio, false);
 	}
 }