Hi Jean Thank you for clearing your problem. Sorry for my confusable email. But can I ask something ? > > > My concern is if audio side need to care/support "formal" graph style, > > > I think all cpu/codec/card driver (and soc-core too ?) need to be updated, > > > but it is too much for me. > > > if fake graph style (like this patch) is OK, I'm happy to hack it more. > > > > This "fake graph style" means it is supporting both graph's "remote-endpoint" > > and current simple-card's "sound-dai" (= not 100% graph style). (snip) > So, in brief: > - the simple-card with only "sound-dai" works fine with or without a > graph of ports, > - for a full use of the graph of ports, forget about the simple-card. Q1 If we use full graph style card, and if it would like to reuse current existing CPU/CODEC driver, then, I think CPU/CODEC driver should support graph style too. (Now, I'm checking v4l2 side existing graph style driver) I know it is based on its current implementation, but basically YES ? Q2 If Q1 was Yes, to keeping ABI compatibility, that CPU/CODEC driver should support both "phandle" and "graph" style ?