Re: [PATCH] ASoC: qcom: sc8280xp: configure codec sysclk for QCS615

[Mohammad Rafi Shaik]

On 8/7/2026 6:54 AM, Le Qi wrote:
> Continuous high-amplitude noise could occur in the DA7213 microphone
> capture path after a Bluetooth out-of-range/reset event followed by
> reconnection. The noise was present in both the raw ALSA capture and
> PipeWire input, confirming that it originated before Bluetooth
> encoding.
>
> The codec already obtains and enables MCLK through its DT clock and
> bias-level handling. However, the machine driver did not explicitly
> configure the codec sysclk during hw_params(). Enable
> codec_sysclk_set for QCS615 so that the DA7213 clock source and rate
> are configured before the codec power-up sequence.
>
> Verified on QCS615 Talos with repeated Bluetooth disconnect and
> reconnect cycles. The noise was no longer reproducible.
>
> Signed-off-by: Le Qi <le.qi@xxxxxxxxxxxxxxxx>
> ---
> This patch depends on:
>
> ASoC: qcom: sc8280xp: enhance machine driver for board-specific config
>
> Link: https://lore.kernel.org/r/20260727151230.408122-4-mohammad.rafi.shaik@xxxxxxxxxxxxxxxx/
>
> The prerequisite patch introduces qcs615_priv_data and the
> codec_sysclk_set field used by this change. It has not yet been merged
> into linux-next.


Drop this dependency flag, as the change has already been applied.

Thanks & Regards,
Rafi.

>   sound/soc/qcom/sc8280xp.c | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/sound/soc/qcom/sc8280xp.c b/sound/soc/qcom/sc8280xp.c
> index cf272d0612fe..8d949e4dec5b 100644
> --- a/sound/soc/qcom/sc8280xp.c
> +++ b/sound/soc/qcom/sc8280xp.c
> @@ -306,6 +306,7 @@ static const struct snd_soc_common qcs615_priv_data = {
>   	.driver_name = "qcs615",
>   	.dapm_widgets = sc8280xp_dapm_widgets,
>   	.num_dapm_widgets = ARRAY_SIZE(sc8280xp_dapm_widgets),
> +	.codec_sysclk_set = true,
>   };
>   
>   static const struct snd_soc_common qcm6490_priv_data = {