linux-kernel - Re: [RESEND PATCH] ASoC: soc-compress: Inherit atomicity from DAI link for Compress FE

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Date:   Fri, 24 Mar 2023 07:56:50 -0500
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     Daniel Baluta <daniel.baluta@....nxp.com>, broonie@...nel.org,
        alsa-devel@...a-project.org
Cc:     linux-kernel@...r.kernel.org, ranjani.sridharan@...ux.intel.com,
        kai.vehmanen@...ux.intel.com, lgirdwood@...il.com,
        vkoul@...nel.org, daniel.baluta@...il.com
Subject: Re: [RESEND PATCH] ASoC: soc-compress: Inherit atomicity from DAI
 link for Compress FE



On 3/24/23 07:40, Daniel Baluta wrote:
> From: Daniel Baluta <daniel.baluta@....com>
> 
> After commit bbf7d3b1c4f40 ("ASoC: soc-pcm: align BE 'atomicity' with
> that of the FE") BE and FE atomicity must match.
> 
> In the case of Compress PCM there is a mismatch in atomicity between FE
> and BE and we get errors like this:
> 
> [   36.434566]  sai1-wm8960-hifi: dpcm_be_connect: FE is atomic but BE
> is nonatomic, invalid configuration
> [   36.444278]  PCM Deep Buffer: ASoC: can't connect SAI1.OUT
> 
> In order to fix this we must inherit the atomicity from DAI link
> associated with current PCM Compress FE.
> 
> Fixes: bbf7d3b1c4f4 ("ASoC: soc-pcm: align BE 'atomicity' with that of the FE")
> Signed-off-by: Daniel Baluta <daniel.baluta@....com>

Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>

> ---
>  sound/soc/soc-compress.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c
> index e7aa6f360cab..d649b0cf4744 100644
> --- a/sound/soc/soc-compress.c
> +++ b/sound/soc/soc-compress.c
> @@ -622,6 +622,9 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num)
>  			return ret;
>  		}
>  
> +		/* inherit atomicity from DAI link */
> +		be_pcm->nonatomic = rtd->dai_link->nonatomic;
> +
>  		rtd->pcm = be_pcm;
>  		rtd->fe_compr = 1;
>  		if (rtd->dai_link->dpcm_playback)