Hi Rob > This is assuming there's just 1 port and 1 endpoint, but let's be > specific as the bindings are (first endpoint on port 0): > > of_graph_get_endpoint_by_regs(client->dev.of_node, 0, -1); > > Note we could ask for endpoint 0 here, but the bindings generally allow > for more than 1. > > I imagine most of the other cases here are the same. I will do it on new patch-set > > - for_each_endpoint_of_node(state->dev->of_node, ep_np) { > > + for_each_device_endpoint_of_node(state->dev->of_node, ep_np) { > > I would skip the rename. It is needed to avoid confuse, because new function will add another endpoint loop. see https://lore.kernel.org/r/20240131100701.754a95ee@booty Thank you for your help !! Best regards --- Renesas Electronics Ph.D. Kuninori Morimoto