Re: [PATCH] ASoC: simple-card-utils: fix graph_util_is_ports0() for DT overlays

[Sen Wang]

On 3/8/26 19:40, Kuninori Morimoto wrote:
> Hi Sen
>
> > But when the DPCM topology comes from a DT overlay, __of_attach_node()
> > inserts new children at the head of the sibling list, reversing the
> > order. of_get_child_by_name() then returns ports@N instead of ports@0,
> > causing all front-end links to be classified as back-ends in
> > audio-graph-card2. The card subsequently breaks and registers with no
> > PCM devices.
> (snip)
> > +       /* match "ports" or "ports@0" by unit address in node name */
>
> Could you please indicate this method is needed for DT overlay ?
> It is the main reason.
>
> Thank you for your help !!
>
> Best regards
> ---
> Kuninori Morimoto

Thanks for the feedback Kuninori,

Will update the code comment and send a v2 shortly.

Best,
Sen Wang