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From: Shengjiu Wang <shengjiu.wang@nxp.com>
To: timur@kernel.org, nicoleotsuka@gmail.com, Xiubo.Lee@gmail.com,
	festevam@gmail.com, broonie@kernel.org, perex@perex.cz,
	tiwai@suse.com, alsa-devel@alsa-project.org
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH 2/3] ASoC: imx-card: Fix mclk calculation issue for akcodec
Date: Tue,  4 Jan 2022 18:40:34 +0800	[thread overview]
Message-ID: <1641292835-19085-3-git-send-email-shengjiu.wang@nxp.com> (raw)
In-Reply-To: <1641292835-19085-1-git-send-email-shengjiu.wang@nxp.com>

Transfer the refined slots and slot_width to akcodec_get_mclk_rate()
for mclk calculation, otherwise the mclk frequency does not match
with the slots and slot_width for S16_LE format, because the default
slot_width is 32.

Fixes: aa736700f42f ("ASoC: imx-card: Add imx-card machine driver")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
---
 sound/soc/fsl/imx-card.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/sound/soc/fsl/imx-card.c b/sound/soc/fsl/imx-card.c
index e0f3aa6d9501..f9196fb7e833 100644
--- a/sound/soc/fsl/imx-card.c
+++ b/sound/soc/fsl/imx-card.c
@@ -247,13 +247,14 @@ static bool codec_is_akcodec(unsigned int type)
 }
 
 static unsigned long akcodec_get_mclk_rate(struct snd_pcm_substream *substream,
-					   struct snd_pcm_hw_params *params)
+					   struct snd_pcm_hw_params *params,
+					   int slots, int slot_width)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct imx_card_data *data = snd_soc_card_get_drvdata(rtd->card);
 	const struct imx_card_plat_data *plat_data = data->plat_data;
 	struct dai_link_data *link_data = &data->link_data[rtd->num];
-	unsigned int width = link_data->slots * link_data->slot_width;
+	unsigned int width = slots * slot_width;
 	unsigned int rate = params_rate(params);
 	int i;
 
@@ -349,7 +350,7 @@ static int imx_aif_hw_params(struct snd_pcm_substream *substream,
 
 	/* Set MCLK freq */
 	if (codec_is_akcodec(plat_data->type))
-		mclk_freq = akcodec_get_mclk_rate(substream, params);
+		mclk_freq = akcodec_get_mclk_rate(substream, params, slots, slot_width);
 	else
 		mclk_freq = params_rate(params) * slots * slot_width;
 	/* Use the maximum freq from DSD512 (512*44100 = 22579200) */
-- 
2.17.1


  parent reply	other threads:[~2022-01-04 11:10 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-04 10:40 [PATCH 0/3] ASoC: imx-card: several improvement and fixes Shengjiu Wang
2022-01-04 10:40 ` [PATCH 1/3] ASoC: imx-card: Need special setting for ak4497 on i.MX8MQ Shengjiu Wang
2022-01-04 18:06   ` Mark Brown
2022-01-04 10:40 ` Shengjiu Wang [this message]
2022-01-04 10:40 ` [PATCH 3/3] ASoC: imx-card: improve the sound quality for low rate Shengjiu Wang
2022-01-06 20:28 ` [PATCH 0/3] ASoC: imx-card: several improvement and fixes Mark Brown

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