[PATCH v6 05/38] media: omap3isp: Move link creation to bound callback

[Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>]

Move the creation of the links between external sub-devices and ISP
sub-devices to the bound callback. This way we can also remove the need to
access the sub-device's notifier field that will soon be removed.

Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Tested-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx> # imx6qp
Tested-by: Niklas Söderlund <niklas.soderlund@xxxxxxxxxxxx> # rcar + adv746x
Tested-by: Aishwarya Kothari <aishwarya.kothari@xxxxxxxxxxx> # Apalis i.MX6Q with TC358743
Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx> # Renesas RZ/G2L SMARC
---
 drivers/media/platform/ti/omap3isp/isp.c | 38 ++++++++++++------------
 1 file changed, 19 insertions(+), 19 deletions(-)

diff --git a/drivers/media/platform/ti/omap3isp/isp.c b/drivers/media/platform/ti/omap3isp/isp.c
index 2f9c7d688a1c..b01d70dbd0c4 100644
--- a/drivers/media/platform/ti/omap3isp/isp.c
+++ b/drivers/media/platform/ti/omap3isp/isp.c
@@ -2022,35 +2022,34 @@ enum isp_of_phy {
 	ISP_OF_PHY_CSIPHY2,
 };
 
-static int isp_subdev_notifier_complete(struct v4l2_async_notifier *async)
+static int isp_subdev_notifier_bound(struct v4l2_async_notifier *async,
+				     struct v4l2_subdev *sd,
+				     struct v4l2_async_subdev *asd)
 {
 	struct isp_device *isp = container_of(async, struct isp_device,
 					      notifier);
-	struct v4l2_device *v4l2_dev = &isp->v4l2_dev;
-	struct v4l2_subdev *sd;
+	struct isp_bus_cfg *bus_cfg =
+		&container_of(asd, struct isp_async_subdev, asd)->bus;
 	int ret;
 
 	mutex_lock(&isp->media_dev.graph_mutex);
+	ret = isp_link_entity(isp, &sd->entity, bus_cfg->interface);
+	mutex_unlock(&isp->media_dev.graph_mutex);
 
-	ret = media_entity_enum_init(&isp->crashed, &isp->media_dev);
-	if (ret) {
-		mutex_unlock(&isp->media_dev.graph_mutex);
-		return ret;
-	}
-
-	list_for_each_entry(sd, &v4l2_dev->subdevs, list) {
-		if (sd->notifier != &isp->notifier)
-			continue;
+	return ret;
+}
 
-		ret = isp_link_entity(isp, &sd->entity,
-				      v4l2_subdev_to_bus_cfg(sd)->interface);
-		if (ret < 0) {
-			mutex_unlock(&isp->media_dev.graph_mutex);
-			return ret;
-		}
-	}
+static int isp_subdev_notifier_complete(struct v4l2_async_notifier *async)
+{
+	struct isp_device *isp = container_of(async, struct isp_device,
+					      notifier);
+	int ret;
 
+	mutex_lock(&isp->media_dev.graph_mutex);
+	ret = media_entity_enum_init(&isp->crashed, &isp->media_dev);
 	mutex_unlock(&isp->media_dev.graph_mutex);
+	if (ret)
+		return ret;
 
 	ret = v4l2_device_register_subdev_nodes(&isp->v4l2_dev);
 	if (ret < 0)
@@ -2240,6 +2239,7 @@ static int isp_parse_of_endpoints(struct isp_device *isp)
 }
 
 static const struct v4l2_async_notifier_operations isp_subdev_notifier_ops = {
+	.bound = isp_subdev_notifier_bound,
 	.complete = isp_subdev_notifier_complete,
 };
 
-- 
2.39.2