Re: [PATCH v1 1/1] ASoC: qcom: sc8280xp: Assign backend ops for multi codec dai links

["Alexey Klimov" <alexey.klimov@linaro.org>]

On Wed May 28, 2025 at 4:07 PM BST, Mohammad Rafi Shaik wrote:
> In the existing implementation, the link->ops assignment is
> conditioned on link->no_pcm being set, which generally happens
> when a platform entry is present. However, in scenarios where
> there is no platform but multiple codecs in the DAI link,
> backend operations (link->ops) must still be assigned to ensure
> correct codec settings.
>
> Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@oss.qualcomm.com>
> ---
>  sound/soc/qcom/sc8280xp.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/sound/soc/qcom/sc8280xp.c b/sound/soc/qcom/sc8280xp.c
> index 99fd34728e38..b1b31d197b42 100644
> --- a/sound/soc/qcom/sc8280xp.c
> +++ b/sound/soc/qcom/sc8280xp.c
> @@ -147,7 +147,7 @@ static void sc8280xp_add_be_ops(struct snd_soc_card *card)
>  	int i;
>  
>  	for_each_card_prelinks(card, i, link) {
> -		if (link->no_pcm == 1) {
> +		if (link->no_pcm == 1 || link->num_codecs > 1) {

Out of curiosity or maybe I am missing something, why this is needed
for a multi-codec link only? Or in other words why not link->num_codecs > 0 ?

Or due to some reasons platformless single-codec backend is a no-go scenario?

Thanks,
Alexey