From: Philipp Zabel p.zabel@pengutronix.de
[ Upstream commit 95778c2d0979618e3349b1d2324ec282a5a6adbf ]
i.MX6 device tree include files contain dangling endpoints for the board device tree writers' convenience. These are still included in many existing device trees. Treat dangling endpoints as non-existent to support them.
Signed-off-by: Philipp Zabel p.zabel@pengutronix.de Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Fixes: 612b385efb1e ("media: video-mux: Create media links in bound notifier") Signed-off-by: Mauro Carvalho Chehab mchehab+huawei@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/platform/video-mux.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/video-mux.c b/drivers/media/platform/video-mux.c index 7b280dfca727..640ce76fe0d9 100644 --- a/drivers/media/platform/video-mux.c +++ b/drivers/media/platform/video-mux.c @@ -362,7 +362,7 @@ static int video_mux_async_register(struct video_mux *vmux,
for (i = 0; i < num_input_pads; i++) { struct v4l2_async_subdev *asd; - struct fwnode_handle *ep; + struct fwnode_handle *ep, *remote_ep;
ep = fwnode_graph_get_endpoint_by_id( dev_fwnode(vmux->subdev.dev), i, 0, @@ -370,6 +370,14 @@ static int video_mux_async_register(struct video_mux *vmux, if (!ep) continue;
+ /* Skip dangling endpoints for backwards compatibility */ + remote_ep = fwnode_graph_get_remote_endpoint(ep); + if (!remote_ep) { + fwnode_handle_put(ep); + continue; + } + fwnode_handle_put(remote_ep); + asd = v4l2_async_notifier_add_fwnode_remote_subdev( &vmux->notifier, ep, sizeof(*asd));