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ASoC: fsl_spdif: Disable TX clock when stop 

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: a2388a498a ("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>
This commit is contained in:
Shengjiu Wang 2022-03-10 10:37:43 +08:00 committed by Mark Brown
parent 233d2c4a10
commit 6ddf611219
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1 changed files with 2 additions and 0 deletions
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2
sound/soc/fsl/fsl_spdif.c
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@ -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|