[PATCH] media: rkisp1: Don't create data links for non-sensor subdevs

[Daniel Scally]

With the introduction of ancillary links, not all subdevs linked to
the ISP's v4l2_dev necessarily represent sensors / bridges. Check the
function for the subdevs and skip any that represent lens or flash
controllers before creating data links.

Signed-off-by: Daniel Scally <djrscally at gmail.com>
---

This should fix the issues that have been noticed, but perhaps a new flag like
MEDIA_ENT_FL_HAS_SOURCE or something would be a better way to denote subdevs
that need data links?

 drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
index 3f5cfa7eb937..e90f0216cb06 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
@@ -134,6 +134,10 @@ static int rkisp1_create_links(struct rkisp1_device *rkisp1)
 		    sd == &rkisp1->resizer_devs[RKISP1_SELFPATH].sd)
 			continue;
 
+		if (sd->entity.function == MEDIA_ENT_F_LENS ||
+		    sd->entity.function == MEDIA_ENT_F_FLASH)
+			continue;
+
 		ret = media_entity_get_fwnode_pad(&sd->entity, sd->fwnode,
 						  MEDIA_PAD_FL_SOURCE);
 		if (ret < 0) {
-- 
2.25.1