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[5.10,251/599] ASoC: fsl_spdif: Disable TX clock when stop

Message ID 20220405070306.309197882@linuxfoundation.org
State Superseded
Headers show
Series None | expand

Commit Message

Greg Kroah-Hartman April 5, 2022, 7:29 a.m. UTC 
From: Shengjiu Wang <shengjiu.wang@nxp.com>

[ Upstream commit 6ddf611219ba8f7c8fa0d26b39710a641e7d37a5 ]

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>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/1646879863-27711-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/fsl/fsl_spdif.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index 15bcb0f38ec9..d01e8d516df1 100644
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c
@@ -544,6 +544,8 @@  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|