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@nx... 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 --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c index d178b479c8bd..06d4a014f296 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|