Re: [PATCH v4 4/5] ASoC: qdsp6: q6apm-dai: set 10 ms period and buffer alignment.

[Srinivas Kandagatla]

On 14/03/2025 16:46, Johan Hovold wrote:
> On Fri, Mar 14, 2025 at 02:32:19PM +0000, Srinivas Kandagatla wrote:
> > From: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
> >
> > DSP expects the periods to be aligned to fragment sizes, currently
> > setting up to hw constriants on periods bytes is not going to work
> > correctly as we can endup with periods sizes aligned to 32 bytes however
> > not aligned to fragment size.
> >
> > Update the constriants to use fragment size, and also set at step of
> > 10ms for period size to accommodate DSP requirements of 10ms latency.
> >
> > Fixes: 9b4fe0f1cd79 ("ASoC: qdsp6: audioreach: add q6apm-dai support")
>
> For all of the patches, if the intention is that they should be
> backported to stable they should have a CC stable tag here.

Ideally yes. It would nice to get these back ported to stable.
> > Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
> > ---
> >   sound/soc/qcom/qdsp6/q6apm-dai.c | 6 +++---
> >   1 file changed, 3 insertions(+), 3 deletions(-)
> >
> > diff --git a/sound/soc/qcom/qdsp6/q6apm-dai.c b/sound/soc/qcom/qdsp6/q6apm-dai.c
> > index 90cb24947f31..a636f9280645 100644
> > --- a/sound/soc/qcom/qdsp6/q6apm-dai.c
> > +++ b/sound/soc/qcom/qdsp6/q6apm-dai.c
> > @@ -231,7 +231,6 @@ static int q6apm_dai_prepare(struct snd_soc_component *component,
> >   	cfg.bit_width = prtd->bits_per_sample;
> >   	cfg.fmt = SND_AUDIOCODEC_PCM;
> >   	audioreach_set_default_channel_mapping(cfg.channel_map, runtime->channels);
> > -
>
> nit: unrelated change
Fixed in v5.

--srini
> >   	if (prtd->state) {
> >   		/* clear the previous setup if any  */
> >   		q6apm_graph_stop(prtd->graph);
>
> Johan