linux-kernel - Re: [PATCH] ASoC: qcom: apq8016_sbc: Fix second argument of apq8016_dai

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Message-ID: <8b18aea7c30b16f3a79036e25579f1d26ef2b1cb.camel@web.de>
Date: Fri, 22 Nov 2024 10:48:14 +0100
From: Bert Karwatzki <spasswolf@....de>
To: Stephan Gerhold <stephan.gerhold@...aro.org>
Cc: Stephan Gerhold <stephan@...hold.net>, Mark Brown <broonie@...nel.org>, 
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
	alsa-devel@...a-project.org, spasswolf@....de
Subject: Re: [PATCH] ASoC: qcom: apq8016_sbc: Fix second argument of
 apq8016_dai_init()

Am Donnerstag, dem 21.11.2024 um 15:11 +0100 schrieb Stephan Gerhold:
> Hi,
>
> On Mon, Nov 18, 2024 at 12:20:58AM +0100, Bert Karwatzki wrote:
> > Since commit a78a42fb48b8 the second argument of apq8016_dai_init() has
> > to be an lpass id returned by qdsp6_dai_get_lpass_id().
> >
> > Fixes: a78a42fb48b8 ("ASoC: qcom: apq8016_sbc: Allow routing audio through QDSP6")
> >
> > Signed-off-by: Bert Karwatzki <spasswolf@....de>
> > ---
> >  sound/soc/qcom/apq8016_sbc.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/sound/soc/qcom/apq8016_sbc.c b/sound/soc/qcom/apq8016_sbc.c
> > index 3023cf180a75..ddfcd4616895 100644
> > --- a/sound/soc/qcom/apq8016_sbc.c
> > +++ b/sound/soc/qcom/apq8016_sbc.c
> > @@ -150,7 +150,7 @@ static int apq8016_sbc_dai_init(struct snd_soc_pcm_runtime *rtd)
> >  {
> >  	struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
> >
> > -	return apq8016_dai_init(rtd, cpu_dai->id);
> > +	return apq8016_dai_init(rtd, qdsp6_dai_get_lpass_id(cpu_dai));
> >  }
> >
>
> Hm no, the code is correct the way it is. There are two cases handled by
> this driver:
>
>  - ADSP bypass (lpass-* drivers, qcom,apq8016-sbc-sndcard): This one
>    uses the LPASS IDs as DAI IDs, so cpu_dai->id already contains the
>    correct value.
>
>  - ADSP (qdsp6 drivers, qcom,msm8916-qdsp6-sndcard): This one uses the
>    QDSP6 IDs (e.g. PRIMARY_MI2S_RX/TX instead of MI2S_PRIMARY), so
>    qdsp6_dai_get_lpass_id() is used to translate that to the LPASS IDs.
>
> The code you are changing here handles the first case (ADSP bypass),
> the DAI IDs do not need any translation there.
>
> Thanks,
> Stephan

Thank you for explaining this, and sorry for causing trouble with my "fix".

Bert Karwatzki