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

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 <[email protected]>
---
This patch depends on:

ASoC: qcom: sc8280xp: enhance machine driver for board-specific config

Link: https://lore.kernel.org/r/[email protected]/

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.

 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 = {
-- 
2.34.1