[PATCH v2 03/12] property: Call fwnode_graph_get_endpoint_by_id() for fwnode->secondary
From: Daniel Scally
Date: Thu Dec 17 2020 - 18:44:41 EST
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@xxxxxxxxxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Signed-off-by: Daniel Scally <djrscally@xxxxxxxxx>
---
Changes in v2:
- Some rearranging of the conditionals
drivers/base/property.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/base/property.c b/drivers/base/property.c
index bc9c634df6df..ddba75d90af2 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -1163,7 +1163,14 @@ fwnode_graph_get_endpoint_by_id(const struct fwnode_handle *fwnode,
best_ep_id = fwnode_ep.id;
}
- return best_ep;
+ 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);
--
2.25.1