From: Shengjiu Wang <shengjiu.wang@nxp.com> stable inclusion from stable-v5.10.110 commit fe4db4ea210462f440a0c33fab12313be5340c3d bugzilla: https://gitee.com/openeuler/kernel/issues/I574AL Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- [ 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@nx... Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Yu Liao <liaoyu15@huawei.com> Reviewed-by: Wei Li <liwei391@huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.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 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| -- 2.20.1