From: Shengjiu Wang <shengjiu.wang@nxp.com>
To: nicoleotsuka@gmail.com, Xiubo.Lee@gmail.com, festevam@gmail.com,
shengjiu.wang@gmail.com, lgirdwood@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] ASoC: fsl_spdif: Disable TX clock when stop
Date: Thu, 10 Mar 2022 10:37:43 +0800 [thread overview]
Message-ID: <1646879863-27711-1-git-send-email-shengjiu.wang@nxp.com> (raw)
The TX clock source may be changed in next case, need to
disable it when stop, otherwise the TX may not work after
changing the clock source, error log is:
aplay: pcm_write:2058: write error: Input/output error
Fixes: a2388a498ad2 ("ASoC: fsl: Add S/PDIF CPU DAI driver")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
---
sound/soc/fsl/fsl_spdif.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index 57c41b2f7d17..5f15dae16dd3 100644
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c
@@ -610,6 +610,8 @@ static void fsl_spdif_shutdown(struct snd_pcm_substream *substream,
mask = SCR_TXFIFO_AUTOSYNC_MASK | SCR_TXFIFO_CTRL_MASK |
SCR_TXSEL_MASK | SCR_USRC_SEL_MASK |
SCR_TXFIFO_FSEL_MASK;
+ /* Disable TX clock */
+ regmap_update_bits(regmap, REG_SPDIF_STC, STC_TXCLK_ALL_EN_MASK, 0);
} else {
scr = SCR_RXFIFO_OFF | SCR_RXFIFO_CTL_ZERO;
mask = SCR_RXFIFO_FSEL_MASK | SCR_RXFIFO_AUTOSYNC_MASK|
--
2.17.1
next reply other threads:[~2022-03-10 2:47 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-10 2:37 Shengjiu Wang [this message]
2022-03-10 4:02 ` [PATCH] ASoC: fsl_spdif: Disable TX clock when stop Fabio Estevam
2022-03-10 13:13 ` Mark Brown
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