[PATCH 18/22] media: imx: csi: Create media links in bound notifier
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: 2019-08-05 23:35:44
Also in:
linux-media, lkml
Subsystem:
media drivers for freescale imx, media input infrastructure (v4l/dvb), staging subsystem, the rest · Maintainers:
Steve Longerbeam, Philipp Zabel, Mauro Carvalho Chehab, Greg Kroah-Hartman, Linus Torvalds
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> --- drivers/staging/media/imx/imx-media-csi.c | 24 +++++++++++++++++++++++ 1 file changed, 24 insertions(+)
diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c
index b39d79e63ac2..37b10cbf3c1a 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;
@@ -1895,6 +1900,23 @@ static int imx_csi_parse_endpoint(struct device *dev, return fwnode_device_is_available(asd->match.fwnode) ? 0 : -ENOTCONN; } +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 media_create_fwnode_pad_links(sink, + dev_fwnode(priv->dev->parent), + &sd->entity, + dev_fwnode(sd->dev), 0); +} + +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 fwnode_handle *fwnode;
@@ -1903,6 +1925,8 @@ static int imx_csi_async_register(struct csi_priv *priv) v4l2_async_notifier_init(&priv->notifier); + priv->notifier.ops = &csi_notify_ops; + fwnode = dev_fwnode(priv->dev); /* get this CSI's port id */
--
2.17.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel