On Fri Jun 13 17:34:27 2025 +0200, Niklas Söderlund wrote:
> The R-Car VIN driver is needlessly complex and uses more then one
> v4l-async notifier to attach to all its subdevices. Prepare for unifying
> them by moving rvin_parallel_parse_of() to where it needs to be when
> they are unified.
>
> The function is moved verbatim and there is no change in behavior.
>
> Signed-off-by: Niklas Söderlund <niklas.soderlund+rene...@ragnatech.se>
> Tested-by: Tomi Valkeinen <tomi.valkeinen+rene...@ideasonboard.com>
> Reviewed-by: Laurent Pinchart <laurent.pinchart+rene...@ideasonboard.com>
> Link:
> https://lore.kernel.org/r/20250613153434.2001800-7-niklas.soderlund+rene...@ragnatech.se
> Signed-off-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
> Signed-off-by: Hans Verkuil <hverk...@xs4all.nl>
Patch committed.
Thanks,
Hans Verkuil
.../media/platform/renesas/rcar-vin/rcar-core.c | 106 ++++++++++-----------
1 file changed, 53 insertions(+), 53 deletions(-)
---
diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-core.c
b/drivers/media/platform/renesas/rcar-vin/rcar-core.c
index 55957dd95576..95621c11eecc 100644
--- a/drivers/media/platform/renesas/rcar-vin/rcar-core.c
+++ b/drivers/media/platform/renesas/rcar-vin/rcar-core.c
@@ -338,6 +338,59 @@ static void rvin_group_notifier_cleanup(struct rvin_dev
*vin)
}
}
+static int rvin_parallel_parse_of(struct rvin_dev *vin)
+{
+ struct fwnode_handle *ep, *fwnode;
+ struct v4l2_fwnode_endpoint vep = {
+ .bus_type = V4L2_MBUS_UNKNOWN,
+ };
+ struct v4l2_async_connection *asc;
+ int ret;
+
+ ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(vin->dev), 0, 0, 0);
+ if (!ep)
+ return 0;
+
+ fwnode = fwnode_graph_get_remote_endpoint(ep);
+ ret = v4l2_fwnode_endpoint_parse(ep, &vep);
+ fwnode_handle_put(ep);
+ if (ret) {
+ vin_err(vin, "Failed to parse %pOF\n", to_of_node(fwnode));
+ ret = -EINVAL;
+ goto out;
+ }
+
+ switch (vep.bus_type) {
+ case V4L2_MBUS_PARALLEL:
+ case V4L2_MBUS_BT656:
+ vin_dbg(vin, "Found %s media bus\n",
+ vep.bus_type == V4L2_MBUS_PARALLEL ?
+ "PARALLEL" : "BT656");
+ vin->parallel.mbus_type = vep.bus_type;
+ vin->parallel.bus = vep.bus.parallel;
+ break;
+ default:
+ vin_err(vin, "Unknown media bus type\n");
+ ret = -EINVAL;
+ goto out;
+ }
+
+ asc = v4l2_async_nf_add_fwnode(&vin->notifier, fwnode,
+ struct v4l2_async_connection);
+ if (IS_ERR(asc)) {
+ ret = PTR_ERR(asc);
+ goto out;
+ }
+
+ vin->parallel.asc = asc;
+
+ vin_dbg(vin, "Add parallel OF device %pOF\n", to_of_node(fwnode));
+out:
+ fwnode_handle_put(fwnode);
+
+ return ret;
+}
+
static int rvin_group_notifier_init(struct rvin_dev *vin, unsigned int port,
unsigned int max_id)
{
@@ -636,59 +689,6 @@ static const struct v4l2_async_notifier_operations
rvin_parallel_notify_ops = {
.complete = rvin_parallel_notify_complete,
};
-static int rvin_parallel_parse_of(struct rvin_dev *vin)
-{
- struct fwnode_handle *ep, *fwnode;
- struct v4l2_fwnode_endpoint vep = {
- .bus_type = V4L2_MBUS_UNKNOWN,
- };
- struct v4l2_async_connection *asc;
- int ret;
-
- ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(vin->dev), 0, 0, 0);
- if (!ep)
- return 0;
-
- fwnode = fwnode_graph_get_remote_endpoint(ep);
- ret = v4l2_fwnode_endpoint_parse(ep, &vep);
- fwnode_handle_put(ep);
- if (ret) {
- vin_err(vin, "Failed to parse %pOF\n", to_of_node(fwnode));
- ret = -EINVAL;
- goto out;
- }
-
- switch (vep.bus_type) {
- case V4L2_MBUS_PARALLEL:
- case V4L2_MBUS_BT656:
- vin_dbg(vin, "Found %s media bus\n",
- vep.bus_type == V4L2_MBUS_PARALLEL ?
- "PARALLEL" : "BT656");
- vin->parallel.mbus_type = vep.bus_type;
- vin->parallel.bus = vep.bus.parallel;
- break;
- default:
- vin_err(vin, "Unknown media bus type\n");
- ret = -EINVAL;
- goto out;
- }
-
- asc = v4l2_async_nf_add_fwnode(&vin->notifier, fwnode,
- struct v4l2_async_connection);
- if (IS_ERR(asc)) {
- ret = PTR_ERR(asc);
- goto out;
- }
-
- vin->parallel.asc = asc;
-
- vin_dbg(vin, "Add parallel OF device %pOF\n", to_of_node(fwnode));
-out:
- fwnode_handle_put(fwnode);
-
- return ret;
-}
-
static void rvin_parallel_cleanup(struct rvin_dev *vin)
{
v4l2_async_nf_unregister(&vin->notifier);
