Re: [PATCH v2 0/6] ASoC: extra format on each DAI

[Stephen Gordon <gordoste@xxxxxxxxxxxx>]

On 23/12/2024 1:01 pm, Kuninori Morimoto wrote:
> Hi Stephen
>
> Thank you for testing
>
> > I am attempting to test this by applying your patchset on top of
> > 6.13-rc3. But I am running into a problem, probably because my
> > graph-card2 DT is wrong. I've attached the DTS file. I used the
> > Semi-Multi example.
>
> Hmm... It seems the DT setting itself is correct. I have copied your
> settings to test-cpu / test-codec, but it could probe without any error.
>
> > [   27.333830] asoc-audio-graph-card2 soc@107c000000:sound: probe with
> > driver asoc-audio-graph-card2 failed with error -12
>
> It is -12 = -ENOMEM = kmalloc() error ?
>
>
> Thank you for your help !!
>
> Best regards
> ---
> Kuninori Morimoto


Hi Morimoto-san,

Merry Christmas!

I finally got a chance to look further and after a bit of debugging I 
found that graph_parse_node_multi() has a loop iterating through the 
nodes. However, when graph_get_next_multi_ep() is called to get the next 
endpoint, it returns null. I put a debug statement in there:

                if (!ep) {
                        dev_dbg(dev, "no endpoint");
                        break;
                }

and that statement is shown in dmesg.
After it breaks out of the loop, it just returns the value of 'ret', 
which was initialised to -ENOMEM.

That's as far as I got.

Regards
Stephen