diff mbox series

[v4,13/17] media: imx: csi: Create media links in bound notifier

Message ID 20200303234256.8928-14-slongerbeam@gmail.com
State New
Headers show
Series [v4,01/17] media: entity: Pass entity to get_fwnode_pad operation | expand

Commit Message

Steve Longerbeam March 3, 2020, 11:42 p.m. UTC
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>
---
Changes in v3:
- call a local imx-media utility imx_media_create_fwnode_pad_link().
---
 drivers/staging/media/imx/imx-media-csi.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
diff mbox series

Patch

diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c
index 35f2512ed2a9..59ab1cf72841 100644
--- a/drivers/staging/media/imx/imx-media-csi.c
+++ b/drivers/staging/media/imx/imx-media-csi.c
@@ -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;
@@ -1889,6 +1894,20 @@  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 imx_media_create_fwnode_pad_link(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;
@@ -1926,6 +1945,8 @@  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)