From: Shengjiu Wang Date: Tue, 22 Jun 2021 12:31:24 +0000 (+0800) Subject: ASoC: fsl_spdif: Fix unexpected interrupt after suspend X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a7a0a2feb957e446b2bcf732f245ba04fc8b6314;p=linux.git ASoC: fsl_spdif: Fix unexpected interrupt after suspend When system enter suspend, the machine driver suspend callback function will be called, then the cpu driver trigger callback (SNDRV_PCM_TRIGGER_SUSPEND) be called, it would disable the interrupt. But the machine driver suspend and cpu dai driver suspend order maybe changed, the cpu dai driver's suspend callback is called before machine driver's suppend callback, then the interrupt is not cleared successfully in trigger callback. So need to clear interrupts in cpu dai driver's suspend callback to avoid such issue. Fixes: 9cb2b3796e08 ("ASoC: fsl_spdif: Add pm runtime function") Signed-off-by: Shengjiu Wang Reviewed-by: Fabio Estevam Link: https://lore.kernel.org/r/1624365084-7934-1-git-send-email-shengjiu.wang@nxp.com Signed-off-by: Mark Brown --- diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c index 5636837eb5113..53499bc71fa99 100644 --- a/sound/soc/fsl/fsl_spdif.c +++ b/sound/soc/fsl/fsl_spdif.c @@ -1404,6 +1404,9 @@ static int fsl_spdif_runtime_suspend(struct device *dev) struct fsl_spdif_priv *spdif_priv = dev_get_drvdata(dev); int i; + /* Disable all the interrupts */ + regmap_update_bits(spdif_priv->regmap, REG_SPDIF_SIE, 0xffffff, 0); + regmap_read(spdif_priv->regmap, REG_SPDIF_SRPC, &spdif_priv->regcache_srpc); regcache_cache_only(spdif_priv->regmap, true);