diff --git a/drivers/media/platform/rockchip/cif/capture.c b/drivers/media/platform/rockchip/cif/capture.c
index 9c421b2dcc8d..a38f96fb3776 100644
--- a/drivers/media/platform/rockchip/cif/capture.c
+++ b/drivers/media/platform/rockchip/cif/capture.c
@@ -5279,7 +5279,7 @@ static int rkcif_sof_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
 	if (sub->type != V4L2_EVENT_FRAME_SYNC)
 		return -EINVAL;
 
-	return v4l2_event_subscribe(fh, sub, 0, NULL);
+	return v4l2_event_subscribe(fh, sub, RKCIF_V4L2_EVENT_ELEMS, NULL);
 }
 
 static const struct media_entity_operations rkcif_lvds_sd_media_ops = {
diff --git a/drivers/media/platform/rockchip/cif/mipi-csi2.c b/drivers/media/platform/rockchip/cif/mipi-csi2.c
index b3243b5a2f59..b0ee53be33fd 100644
--- a/drivers/media/platform/rockchip/cif/mipi-csi2.c
+++ b/drivers/media/platform/rockchip/cif/mipi-csi2.c
@@ -499,7 +499,7 @@ static int rkcif_csi2_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh
 	if (sub->type != V4L2_EVENT_FRAME_SYNC)
 		return -EINVAL;
 
-	return v4l2_event_subscribe(fh, sub, 0, NULL);
+	return v4l2_event_subscribe(fh, sub, RKCIF_V4L2_EVENT_ELEMS, NULL);
 }
 
 static int rkcif_csi2_s_power(struct v4l2_subdev *sd, int on)
diff --git a/drivers/media/platform/rockchip/cif/mipi-csi2.h b/drivers/media/platform/rockchip/cif/mipi-csi2.h
index ed828fd9eb11..96f2ae71dea7 100644
--- a/drivers/media/platform/rockchip/cif/mipi-csi2.h
+++ b/drivers/media/platform/rockchip/cif/mipi-csi2.h
@@ -12,6 +12,8 @@
 #define CSI2_ERR_FSFE_MASK	(0xff << 8)
 #define CSI2_ERR_COUNT_ALL_MASK	(0xff)
 
+#define RKCIF_V4L2_EVENT_ELEMS 4
+
 /*
  * there must be 5 pads: 1 input pad from sensor, and
  * the 4 virtual channel output pads