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media: v4l2-core: v4l2-async: Check sd->fwnode->secondary in match_fwnode() 

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>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Daniel Scally 2021-01-07 14:28:35 +01:00 committed by Mauro Carvalho Chehab
parent acec1ff638
commit 06c8523312
1 changed files with 8 additions and 0 deletions
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8
drivers/media/v4l2-core/v4l2-async.c
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@ -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.