Implement the graph_complete callback and report if the media graph is
complete or not.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
---
drivers/media/platform/rcar-vin/rcar-core.c | 13 +++++++++++++
drivers/media/platform/rcar-vin/rcar-vin.h | 4 ++++
2 files changed, 17 insertions(+)
diff --git a/drivers/media/platform/rcar-vin/rcar-core.c b/drivers/media/platform/rcar-vin/rcar-core.c
index 7440c8965d27e64f..21ce3de8168c3224 100644
--- a/drivers/media/platform/rcar-vin/rcar-core.c
+++ b/drivers/media/platform/rcar-vin/rcar-core.c
@@ -221,8 +221,16 @@ static int rvin_group_link_notify(struct media_link *link, u32 flags,
return ret;
}
+static bool rvin_group_graph_complete(struct media_device *mdev)
+{
+ struct rvin_group *group = container_of(mdev, struct rvin_group, mdev);
+
+ return group->complete;
+}
+
static const struct media_device_ops rvin_media_ops = {
.link_notify = rvin_group_link_notify,
+ .graph_complete = rvin_group_graph_complete,
};
/* -----------------------------------------------------------------------------
@@ -735,6 +743,9 @@ static int rvin_group_notify_complete(struct v4l2_async_notifier *notifier)
break;
}
}
+
+ vin->group->complete = true;
+
mutex_unlock(&vin->group->lock);
return ret;
@@ -761,6 +772,8 @@ static void rvin_group_notify_unbind(struct v4l2_async_notifier *notifier,
break;
}
+ vin->group->complete = false;
+
mutex_unlock(&vin->group->lock);
}
diff --git a/drivers/media/platform/rcar-vin/rcar-vin.h b/drivers/media/platform/rcar-vin/rcar-vin.h
index c19d077ce1cb4f4b..ff04adbb969b07de 100644
--- a/drivers/media/platform/rcar-vin/rcar-vin.h
+++ b/drivers/media/platform/rcar-vin/rcar-vin.h
@@ -263,6 +263,8 @@ struct rvin_dev {
* @vin: VIN instances which are part of the group
* @csi: array of pairs of fwnode and subdev pointers
* to all CSI-2 subdevices.
+ * @complete: True if all devices of the group are in the media graph,
+ * false otherwise.
*/
struct rvin_group {
struct kref refcount;
@@ -278,6 +280,8 @@ struct rvin_group {
struct fwnode_handle *fwnode;
struct v4l2_subdev *subdev;
} csi[RVIN_CSI_MAX];
+
+ bool complete;
};
int rvin_dma_register(struct rvin_dev *vin, int irq);
--
2.25.1
