| Message ID | 20210107132838.396641-5-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 |
On Thu, Jan 07, 2021 at 01:28:27PM +0000, Daniel Scally wrote: > 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> > Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> > Signed-off-by: Daniel Scally <djrscally@gmail.com> > --- > Changes in v5: > > - Changed the commit subject > > drivers/base/property.c | 9 ++++++++- > 1 file changed, 8 insertions(+), 1 deletion(-) Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/base/property.c b/drivers/base/property.c index 0bf5260f14c6..1421e9548857 100644 --- a/drivers/base/property.c +++ b/drivers/base/property.c @@ -1215,7 +1215,14 @@ 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);