Re: [GIT PULL] sound updates for 5.9

[John Stultz]

On Mon, Aug 10, 2020 at 10:06 AM Srinivas Kandagatla
<srinivas.kandagatla@xxxxxxxxxx> wrote:
>
> Hi John,
> Thanks for reporting this.
>
> On 08/08/2020 01:23, John Stultz wrote:
> > q6routing remoteproc-adsp:glink-edge:apr:apr-service@8:routing: ASoC:
> > error at soc_component_read_no_lock on
> > remoteproc-adsp:glink-edge:apr:: -5
>
> This is an -EIO error which is reported when the ASoC component driver
> does not have both regmap and read callback and someone is trying to
> read a register!
>
> In q6routing case all the dapm widgets reuse reg field in
> snd_soc_dapm_widget to store offset information or routing table indexs
> or some DSP related id and so on... These are not real registers.
>
> I think the core is trying to read the state of these widgets during
> startup, Which will fail in qdsp6 case as we do not have any regmap or
> read callback associated with this ASoC component.
>
> Previously we never had chance to see these messages so we did not
> implement any dummy read callback.
>
> Adding a dummy callback to q6routing and q6afe-dai ASoC component will
> fix this issue at-least in Qualcomm case!

Yea, just to confirm.  The patch you sent me privately that does the
above seems to work!

Thanks so much!
-john