diff --git a/drivers/media/i2c/rk628/rk628_bt1120_v4l2.c b/drivers/media/i2c/rk628/rk628_bt1120_v4l2.c
index e9e5536212bd..ecb334a4c4c4 100644
--- a/drivers/media/i2c/rk628/rk628_bt1120_v4l2.c
+++ b/drivers/media/i2c/rk628/rk628_bt1120_v4l2.c
@@ -1163,7 +1163,15 @@ static int rk628_bt1120_query_dv_timings(struct v4l2_subdev *sd,
 		struct v4l2_dv_timings *timings)
 {
 	int ret;
+	struct rk628_bt1120 *bt1120 = to_bt1120(sd);
+	struct v4l2_dv_timings default_timing =
+				V4L2_DV_BT_CEA_640X480P59_94;
 
+	if (!tx_5v_power_present(sd) || bt1120->nosignal) {
+		*timings = default_timing;
+		v4l2_info(sd, "%s: not detect 5v, set default timing\n", __func__);
+		return 0;
+	}
 	ret = rk628_bt1120_get_detected_timings(sd, timings);
 	if (ret)
 		return ret;
diff --git a/drivers/media/i2c/rk628/rk628_csi_v4l2.c b/drivers/media/i2c/rk628/rk628_csi_v4l2.c
index 5d327358d4ed..303e92c77168 100644
--- a/drivers/media/i2c/rk628/rk628_csi_v4l2.c
+++ b/drivers/media/i2c/rk628/rk628_csi_v4l2.c
@@ -1764,7 +1764,14 @@ static int rk628_csi_query_dv_timings(struct v4l2_subdev *sd,
 {
 	int ret;
 	struct rk628_csi *csi = to_csi(sd);
+	struct v4l2_dv_timings default_timing =
+				V4L2_DV_BT_CEA_640X480P59_94;
 
+	if (!tx_5v_power_present(sd) || csi->nosignal) {
+		*timings = default_timing;
+		v4l2_info(sd, "%s: not detect 5v, set default timing\n", __func__);
+		return 0;
+	}
 	mutex_lock(&csi->confctl_mutex);
 	ret = rk628_csi_get_detected_timings(sd, timings);
 	mutex_unlock(&csi->confctl_mutex);