[PATCH v2 11/23] media: stm32-dcmi: Fix fwnode media link creation

[Steve Longerbeam <slongerbeam@gmail.com>]

dcmi_graph_notify_bound() passes the bound subdev's sd->fwnode to
media_entity_get_fwnode_pad(). This is likely not an endpoint
fwnode as required by media_entity_get_fwnode_pad(), for most
subdevices it is the port parent of endpoint fwnode(s). This has only
worked before because no entities have implemented the .get_fwnode_pad()
op yet, and the default behavior of media_entity_get_fwnode_pad()
was to ignore the passed fwnode and return the first pad that matches
the given direction flags.

Fix this by replacing the calls to media_entity_get_fwnode_pad() and
media_create_pad_link() with a call to media_create_fwnode_pad_links().

Fixes: f4378baf07a2 ("media: stm32-dcmi: add support of several sub-devices")
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
---
 drivers/media/platform/stm32/stm32-dcmi.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/media/platform/stm32/stm32-dcmi.c b/drivers/media/platform/stm32/stm32-dcmi.c
index 9392e3409fba..bfb7794c43a1 100644
--- a/drivers/media/platform/stm32/stm32-dcmi.c
+++ b/drivers/media/platform/stm32/stm32-dcmi.c
@@ -1743,7 +1743,6 @@ static int dcmi_graph_notify_bound(struct v4l2_async_notifier *notifier,
 {
 	struct stm32_dcmi *dcmi = notifier_to_dcmi(notifier);
 	unsigned int ret;
-	int src_pad;
 
 	dev_dbg(dcmi->dev, "Subdev \"%s\" bound\n", subdev->name);
 
@@ -1751,14 +1750,12 @@ static int dcmi_graph_notify_bound(struct v4l2_async_notifier *notifier,
 	 * Link this sub-device to DCMI, it could be
 	 * a parallel camera sensor or a bridge
 	 */
-	src_pad = media_entity_get_fwnode_pad(&subdev->entity,
-					      subdev->fwnode,
-					      MEDIA_PAD_FL_SOURCE);
-
-	ret = media_create_pad_link(&subdev->entity, src_pad,
-				    &dcmi->vdev->entity, 0,
-				    MEDIA_LNK_FL_IMMUTABLE |
-				    MEDIA_LNK_FL_ENABLED);
+	ret = media_create_fwnode_pad_links(&dcmi->vdev->entity.pads[0],
+					    dev_fwnode(dcmi->dev),
+					    &subdev->entity,
+					    dev_fwnode(subdev->dev),
+					    MEDIA_LNK_FL_IMMUTABLE |
+					    MEDIA_LNK_FL_ENABLED);
 	if (ret)
 		dev_err(dcmi->dev, "Failed to create media pad link with subdev \"%s\"\n",
 			subdev->name);
-- 
2.17.1