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[v4,12/15] media: v4l2-core: v4l2-async: Check sd->fwnode->secondary in match_fwnode()

Message ID 20210103231235.792999-13-djrscally@gmail.com (mailing list archive)
State New, archived
Headers show
Series Add functionality to ipu3-cio2 driver allowing software_node connections to sensors on platforms designed for Windows | expand

Commit Message

Daniel Scally Jan. 3, 2021, 11:12 p.m. UTC 
Where the fwnode graph is comprised of software_nodes, these will be
assigned as the secondary to dev->fwnode. Check the v4l2_subdev's fwnode
for a secondary and attempt to match against it during match_fwnode() to
accommodate that possibility.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Scally <djrscally@gmail.com>
---
Changes in v4:

	- None

 drivers/media/v4l2-core/v4l2-async.c | 8 ++++++++
 1 file changed, 8 insertions(+)
diff mbox series

Patch

diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
index e3ab003a6c85..9dd896d085ec 100644
--- a/drivers/media/v4l2-core/v4l2-async.c
+++ b/drivers/media/v4l2-core/v4l2-async.c
@@ -87,6 +87,14 @@  static bool match_fwnode(struct v4l2_async_notifier *notifier,
 	if (sd->fwnode == asd->match.fwnode)
 		return true;
 
+	/*
+	 * Check the same situation for any possible secondary assigned to the
+	 * subdev's fwnode
+	 */
+	if (!IS_ERR_OR_NULL(sd->fwnode->secondary) &&
+	    sd->fwnode->secondary == asd->match.fwnode)
+		return true;
+
 	/*
 	 * Otherwise, check if the sd fwnode and the asd fwnode refer to an
 	 * endpoint or a device. If they're of the same type, there's no match.