linux-kernel - [PATCH 1/2] ASoC: imx-card: Set mclk for codec

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Message-Id: <1728460004-364-2-git-send-email-shengjiu.wang@nxp.com>
Date: Wed,  9 Oct 2024 15:46:43 +0800
From: Shengjiu Wang <shengjiu.wang@....com>
To: shengjiu.wang@...il.com,
	Xiubo.Lee@...il.com,
	festevam@...il.com,
	nicoleotsuka@...il.com,
	lgirdwood@...il.com,
	broonie@...nel.org,
	perex@...ex.cz,
	tiwai@...e.com,
	alsa-devel@...a-project.org,
	linuxppc-dev@...ts.ozlabs.org,
	linux-sound@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	chancel.liu@....com
Subject: [PATCH 1/2] ASoC: imx-card: Set mclk for codec

From: Chancel Liu <chancel.liu@....com>

In some cases, ASoC machine driver may modify the mclk frequency
according to sample rate but the value in codec is still initial
frequency which should be replaced. For example, we should update
mclk before setup for cs42xx8 mclk relating registers.

Signed-off-by: Chancel Liu <chancel.liu@....com>
Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
---
 sound/soc/fsl/imx-card.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/soc/fsl/imx-card.c b/sound/soc/fsl/imx-card.c
index a7215bad6484..2f3dbbd15791 100644
--- a/sound/soc/fsl/imx-card.c
+++ b/sound/soc/fsl/imx-card.c
@@ -370,6 +370,11 @@ static int imx_aif_hw_params(struct snd_pcm_substream *substream,
 		dev_err(dev, "failed to set cpui dai mclk1 rate (%lu): %d\n", mclk_freq, ret);
 		return ret;
 	}
+	ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk_freq, SND_SOC_CLOCK_IN);
+	if (ret && ret != -ENOTSUPP) {
+		dev_err(dev, "failed to set codec dai mclk rate (%lu): %d\n", mclk_freq, ret);
+		return ret;
+	}
 
 	return 0;
 }
-- 
2.34.1