[PATCHv2 17/32] media: rcar-vin: clarify error message from the digital notifier

["Niklas Söderlund" <niklas.soderlund+renesas@ragnatech.se>]

Some of the parser functions previously only used by the digital
subdevice OF/V4L2 async code will be shared with the CSI2 group
notifiers. Clarify which notifier register error message and mark which
functions are generic helpers.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
---
 drivers/media/platform/rcar-vin/rcar-core.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/rcar-vin/rcar-core.c b/drivers/media/platform/rcar-vin/rcar-core.c
index def240b1..26e438a 100644
--- a/drivers/media/platform/rcar-vin/rcar-core.c
+++ b/drivers/media/platform/rcar-vin/rcar-core.c
@@ -35,7 +35,7 @@ struct rvin_graph_entity *vin_to_entity(struct rvin_dev *vin)
 }
 
 /* -----------------------------------------------------------------------------
- * Async notifier
+ * Async notifier helpers
  */
 
 #define notifier_to_vin(n) container_of(n, struct rvin_dev, notifier)
@@ -77,6 +77,10 @@ static unsigned int rvin_pad_idx(struct v4l2_subdev *sd, int direction)
 	return 0;
 }
 
+/* -----------------------------------------------------------------------------
+ * Digital async notifier
+ */
+
 static int rvin_digital_notify_complete(struct v4l2_async_notifier *notifier)
 {
 	struct rvin_dev *vin = notifier_to_vin(notifier);
@@ -242,7 +246,7 @@ static int rvin_digital_graph_init(struct rvin_dev *vin)
 
 	ret = v4l2_async_notifier_register(&vin->v4l2_dev, &vin->notifier);
 	if (ret < 0) {
-		vin_err(vin, "Notifier registration failed\n");
+		vin_err(vin, "Digital notifier registration failed\n");
 		return ret;
 	}
 
-- 
2.10.2