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media: device property: Call fwnode_graph_get_endpoint_by_id() for fwnode->secondary 

This function is used to find fwnode endpoints against a device. In
some instances those endpoints are software nodes which are children of
fwnode->secondary. Add support to fwnode_graph_get_endpoint_by_id() to
find those endpoints by recursively calling itself passing the ptr to
fwnode->secondary in the event no endpoint is found for the primary.

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>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.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 14:28:27 +01:00 committed by Mauro Carvalho Chehab
parent 5273382d03
commit acd418bfcf
1 changed files with 8 additions and 1 deletions
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7
drivers/base/property.c
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@ -1215,7 +1215,14 @@ fwnode_graph_get_endpoint_by_id(const struct fwnode_handle *fwnode,
best_ep_id = fwnode_ep.id;
}
if (best_ep)
return best_ep;
if (fwnode && !IS_ERR_OR_NULL(fwnode->secondary))
return fwnode_graph_get_endpoint_by_id(fwnode->secondary, port,
endpoint, flags);
return NULL;
}
EXPORT_SYMBOL_GPL(fwnode_graph_get_endpoint_by_id);