From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Mark the sink and source pad with the MEDIA_PAD_FL_MUST_CONNECT flag to
ensure pipeline validation fails if it is not connected.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
index e725982c4705..b6a118ce9fcb 100644
--- a/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
+++ b/drivers/media/platform/renesas/rzg2l-cru/rzg2l-csi2.c
@@ -795,13 +795,15 @@ static int rzg2l_csi2_probe(struct platform_device *pdev)
 	csi2->subdev.entity.function = MEDIA_ENT_F_VID_IF_BRIDGE;
 	csi2->subdev.entity.ops = &rzg2l_csi2_entity_ops;
 
-	csi2->pads[RZG2L_CSI2_SINK].flags = MEDIA_PAD_FL_SINK;
+	csi2->pads[RZG2L_CSI2_SINK].flags = MEDIA_PAD_FL_SINK |
+					    MEDIA_PAD_FL_MUST_CONNECT;
 	/*
 	 * TODO: RZ/G2L CSI2 supports 4 virtual channels, as virtual
 	 * channels should be implemented by streams API which is under
 	 * development lets hardcode to VC0 for now.
 	 */
-	csi2->pads[RZG2L_CSI2_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
+	csi2->pads[RZG2L_CSI2_SOURCE].flags = MEDIA_PAD_FL_SOURCE |
+					      MEDIA_PAD_FL_MUST_CONNECT;
 	ret = media_entity_pads_init(&csi2->subdev.entity, 2, csi2->pads);
 	if (ret)
 		goto error_pm;
-- 
2.43.0