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media: cadence: csi2rx: Add link validation

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Add media link validation to make sure incorrectly configured pipelines
are caught.

Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
Tested-by: Julien Massot <julien.massot@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Jai Luthra <j-luthra@ti.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Pratyush Yadav 2023-10-09 18:39:37 +05:30 committed by Hans Verkuil
parent c6ed7a39f1
commit b0f46ad6ed
1 changed files with 5 additions and 0 deletions
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5
drivers/media/platform/cadence/cdns-csi2rx.c
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@ -453,6 +453,10 @@ static const struct v4l2_subdev_ops csi2rx_subdev_ops = {
.pad = &csi2rx_pad_ops,
};
static const struct media_entity_operations csi2rx_media_ops = {
.link_validate = v4l2_subdev_link_validate,
};
static int csi2rx_async_bound(struct v4l2_async_notifier *notifier,
struct v4l2_subdev *s_subdev,
struct v4l2_async_connection *asd)
@ -669,6 +673,7 @@ static int csi2rx_probe(struct platform_device *pdev)
for (i = CSI2RX_PAD_SOURCE_STREAM0; i < CSI2RX_PAD_MAX; i++)
csi2rx->pads[i].flags = MEDIA_PAD_FL_SOURCE;
csi2rx->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
csi2rx->subdev.entity.ops = &csi2rx_media_ops;
ret = media_entity_pads_init(&csi2rx->subdev.entity, CSI2RX_PAD_MAX,
csi2rx->pads);