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media: imx: csi: Create media links in bound notifier

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Implement a notifier bound op to register media links from the remote
sub-device's source pad(s) to the CSI sink pad.

Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Steve Longerbeam 2020-05-01 19:15:50 +02:00 committed by Mauro Carvalho Chehab
parent 94b99296f3
commit 2c586f1891
1 changed files with 21 additions and 0 deletions
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21
drivers/staging/media/imx/imx-media-csi.c
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@ -120,6 +120,11 @@ static inline struct csi_priv *sd_to_dev(struct v4l2_subdev *sdev)
return container_of(sdev, struct csi_priv, sd);
}
static inline struct csi_priv *notifier_to_dev(struct v4l2_async_notifier *n)
{
return container_of(n, struct csi_priv, notifier);
}
static inline bool is_parallel_bus(struct v4l2_fwnode_endpoint *ep)
{
return ep->bus_type != V4L2_MBUS_CSI2_DPHY;
@ -1894,6 +1899,20 @@ static const struct v4l2_subdev_internal_ops csi_internal_ops = {
.unregistered = csi_unregistered,
};
static int imx_csi_notify_bound(struct v4l2_async_notifier *notifier,
struct v4l2_subdev *sd,
struct v4l2_async_subdev *asd)
{
struct csi_priv *priv = notifier_to_dev(notifier);
struct media_pad *sink = &priv->sd.entity.pads[CSI_SINK_PAD];
return v4l2_create_fwnode_links_to_pad(sd, sink);
}
static const struct v4l2_async_notifier_operations csi_notify_ops = {
.bound = imx_csi_notify_bound,
};
static int imx_csi_async_register(struct csi_priv *priv)
{
struct v4l2_async_subdev *asd = NULL;
@ -1931,6 +1950,8 @@ static int imx_csi_async_register(struct csi_priv *priv)
}
}
priv->notifier.ops = &csi_notify_ops;
ret = v4l2_async_subdev_notifier_register(&priv->sd,
&priv->notifier);
if (ret)