linux-kernel - Re: [PATCH v2 3/3] ASoC: qcom: sc8280xp: Fix DAI format setting for MI2S interfaces

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Message-ID: <fb126ef2-aa44-4a67-9188-3483b07b73d6@oss.qualcomm.com>
Date: Fri, 5 Sep 2025 11:46:07 +0100
From: Srinivas Kandagatla <srinivas.kandagatla@....qualcomm.com>
To: Mohammad Rafi Shaik <mohammad.rafi.shaik@....qualcomm.com>,
        Srinivas Kandagatla <srini@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.dev>
Cc: linux-sound@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel@....qualcomm.com,
        prasad.kumpatla@....qualcomm.com, ajay.nandam@....qualcomm.com
Subject: Re: [PATCH v2 3/3] ASoC: qcom: sc8280xp: Fix DAI format setting for
 MI2S interfaces

On 9/5/25 11:40 AM, Mohammad Rafi Shaik wrote:
> The current implementation does not configure the CPU DAI format for
> MI2S interfaces, resulting in -EIO errors during audio playback and
> capture. This prevents the correct clock from being enabled for the
> MI2S interface. Configure the required DAI format to enable proper
> clock settings. Tested on Lemans evk platform.
> 
> Fixes: 295aeea6646ad ("ASoC: qcom: add machine driver for sc8280xp")
Why? this is not a fix, this is an enhancement to the machine driver.

> Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@....qualcomm.com>
> ---

other than that,  LGTM

Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@....qualcomm.com>

--srini

>  sound/soc/qcom/sc8280xp.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/sound/soc/qcom/sc8280xp.c b/sound/soc/qcom/sc8280xp.c
> index 73f9f82c4e25..2fd06354923a 100644
> --- a/sound/soc/qcom/sc8280xp.c
> +++ b/sound/soc/qcom/sc8280xp.c
> @@ -32,6 +32,9 @@ static int sc8280xp_snd_init(struct snd_soc_pcm_runtime *rtd)
>  	int dp_pcm_id = 0;
>  
>  	switch (cpu_dai->id) {
> +	case PRIMARY_MI2S_RX...QUATERNARY_MI2S_TX:
> +		snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_BP_FP);
> +		break;
>  	case WSA_CODEC_DMA_RX_0:
>  	case WSA_CODEC_DMA_RX_1:
>  		/*