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From: Shengjiu Wang <shengjiu.wang@nxp.com>
To: timur@kernel.org, nicoleotsuka@gmail.com, Xiubo.Lee@gmail.com,
	festevam@gmail.com, broonie@kernel.org, perex@perex.cz,
	tiwai@suse.com, alsa-devel@alsa-project.org
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2] ASoC: fsl_esai: Disable exception interrupt before scheduling tasklet
Date: Mon, 27 Apr 2020 14:23:21 +0800	[thread overview]
Message-ID: <a8f2ad955aac9e52587beedc1133b3efbe746895.1587968824.git.shengjiu.wang@nxp.com> (raw)

Disable exception interrupt before scheduling tasklet, otherwise if
the tasklet isn't handled immediately, there will be endless xrun
interrupt.

Fixes: 7ccafa2b3879 ("ASoC: fsl_esai: recover the channel swap after xrun")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
---
changes in v2
- Disable exception interrupt instead of remove tasklet.

 sound/soc/fsl/fsl_esai.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c
index c7a49d03463a..84290be778f0 100644
--- a/sound/soc/fsl/fsl_esai.c
+++ b/sound/soc/fsl/fsl_esai.c
@@ -87,6 +87,10 @@ static irqreturn_t esai_isr(int irq, void *devid)
 	if ((saisr & (ESAI_SAISR_TUE | ESAI_SAISR_ROE)) &&
 	    esai_priv->reset_at_xrun) {
 		dev_dbg(&pdev->dev, "reset module for xrun\n");
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_TCR,
+				   ESAI_xCR_xEIE_MASK, 0);
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_RCR,
+				   ESAI_xCR_xEIE_MASK, 0);
 		tasklet_schedule(&esai_priv->task);
 	}
 
-- 
2.21.0


             reply	other threads:[~2020-04-27  6:32 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-27  6:23 Shengjiu Wang [this message]
2020-04-27  6:59 ` [PATCH v2] ASoC: fsl_esai: Disable exception interrupt before scheduling tasklet Nicolin Chen
2020-04-27  6:59   ` Nicolin Chen
2020-04-27  6:59   ` Nicolin Chen
2020-04-27 12:06 ` Mark Brown
2020-04-27 12:06   ` Mark Brown

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