media: v4l: async: Drop v4l2_async_nf_parse_fwnode_endpoints()

The v4l2_async_nf_parse_fwnode_endpoints() function, part of
v4l2-fwnode.c, was a helper meant to register one async sub-dev for each
fwnode endpoint of a device.

The function is marked as deprecated in the documentation and is actually
not used anywhere anymore. Drop it and remove the helper function
v4l2_async_nf_fwnode_parse_endpoint() from v4l2-fwnode.c.

This change allows to make the helper function
__v4l2_async_nf_add_connection() visibility private to v4l2-async.c so
that there is no risk drivers can mistakenly use it.

[Sakari Ailus: Small fixups on top.]

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de> # imx6qp
Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> # rcar + adv746x
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Aishwarya Kothari <aishwarya.kothari@toradex.com> # Apalis i.MX6Q with TC358743
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> # Renesas RZ/G2L SMARC
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

2 files changed, 3 insertions, 100 deletions

diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
index b16b5f4cb91e..7831bc879290 100644
--- a/drivers/media/v4l2-core/v4l2-async.c
+++ b/drivers/media/v4l2-core/v4l2-async.c
@@ -662,8 +662,9 @@ void v4l2_async_nf_cleanup(struct v4l2_async_notifier *notifier)
 }
 EXPORT_SYMBOL_GPL(v4l2_async_nf_cleanup);
 
-int __v4l2_async_nf_add_subdev(struct v4l2_async_notifier *notifier,
-			       struct v4l2_async_subdev *asd)
+
+static int __v4l2_async_nf_add_subdev(struct v4l2_async_notifier *notifier,
+				      struct v4l2_async_subdev *asd)
 {
 	int ret;
 
@@ -679,7 +680,6 @@ unlock:
 	mutex_unlock(&list_lock);
 	return ret;
 }
-EXPORT_SYMBOL_GPL(__v4l2_async_nf_add_subdev);
 
 struct v4l2_async_subdev *
 __v4l2_async_nf_add_fwnode(struct v4l2_async_notifier *notifier,
diff --git a/drivers/media/v4l2-core/v4l2-fwnode.c b/drivers/media/v4l2-core/v4l2-fwnode.c
index 4fa9225aa3d9..d818f88d2b49 100644
--- a/drivers/media/v4l2-core/v4l2-fwnode.c
+++ b/drivers/media/v4l2-core/v4l2-fwnode.c
@@ -808,103 +808,6 @@ int v4l2_fwnode_device_parse(struct device *dev,
 }
 EXPORT_SYMBOL_GPL(v4l2_fwnode_device_parse);
 
-static int
-v4l2_async_nf_fwnode_parse_endpoint(struct device *dev,
-				    struct v4l2_async_notifier *notifier,
-				    struct fwnode_handle *endpoint,
-				    unsigned int asd_struct_size,
-				    parse_endpoint_func parse_endpoint)
-{
-	struct v4l2_fwnode_endpoint vep = { .bus_type = 0 };
-	struct v4l2_async_subdev *asd;
-	int ret;
-
-	asd = kzalloc(asd_struct_size, GFP_KERNEL);
-	if (!asd)
-		return -ENOMEM;
-
-	asd->match_type = V4L2_ASYNC_MATCH_FWNODE;
-	asd->match.fwnode =
-		fwnode_graph_get_remote_port_parent(endpoint);
-	if (!asd->match.fwnode) {
-		dev_dbg(dev, "no remote endpoint found\n");
-		ret = -ENOTCONN;
-		goto out_err;
-	}
-
-	ret = v4l2_fwnode_endpoint_alloc_parse(endpoint, &vep);
-	if (ret) {
-		dev_warn(dev, "unable to parse V4L2 fwnode endpoint (%d)\n",
-			 ret);
-		goto out_err;
-	}
-
-	ret = parse_endpoint ? parse_endpoint(dev, &vep, asd) : 0;
-	if (ret == -ENOTCONN)
-		dev_dbg(dev, "ignoring port@%u/endpoint@%u\n", vep.base.port,
-			vep.base.id);
-	else if (ret < 0)
-		dev_warn(dev,
-			 "driver could not parse port@%u/endpoint@%u (%d)\n",
-			 vep.base.port, vep.base.id, ret);
-	v4l2_fwnode_endpoint_free(&vep);
-	if (ret < 0)
-		goto out_err;
-
-	ret = __v4l2_async_nf_add_subdev(notifier, asd);
-	if (ret < 0) {
-		/* not an error if asd already exists */
-		if (ret == -EEXIST)
-			ret = 0;
-		goto out_err;
-	}
-
-	return 0;
-
-out_err:
-	fwnode_handle_put(asd->match.fwnode);
-	kfree(asd);
-
-	return ret == -ENOTCONN ? 0 : ret;
-}
-
-int
-v4l2_async_nf_parse_fwnode_endpoints(struct device *dev,
-				     struct v4l2_async_notifier *notifier,
-				     size_t asd_struct_size,
-				     parse_endpoint_func parse_endpoint)
-{
-	struct fwnode_handle *fwnode;
-	int ret = 0;
-
-	if (WARN_ON(asd_struct_size < sizeof(struct v4l2_async_subdev)))
-		return -EINVAL;
-
-	fwnode_graph_for_each_endpoint(dev_fwnode(dev), fwnode) {
-		struct fwnode_handle *dev_fwnode;
-		bool is_available;
-
-		dev_fwnode = fwnode_graph_get_port_parent(fwnode);
-		is_available = fwnode_device_is_available(dev_fwnode);
-		fwnode_handle_put(dev_fwnode);
-		if (!is_available)
-			continue;
-
-
-		ret = v4l2_async_nf_fwnode_parse_endpoint(dev, notifier,
-							  fwnode,
-							  asd_struct_size,
-							  parse_endpoint);
-		if (ret < 0)
-			break;
-	}
-
-	fwnode_handle_put(fwnode);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(v4l2_async_nf_parse_fwnode_endpoints);
-
 /*
  * v4l2_fwnode_reference_parse - parse references for async sub-devices
  * @dev: the device node the properties of which are parsed for references