ASoC: fsl_audmix: Add spin lock to protect tdms

When two stream start to run, the trigger function
may be called by two substream in same time, that
the priv->tdms may be updated wrongly

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/sound/soc/fsl/fsl_audmix.h b/sound/soc/fsl/fsl_audmix.h
index 7812ffec45c5..479f05695d53 100644
--- a/sound/soc/fsl/fsl_audmix.h
+++ b/sound/soc/fsl/fsl_audmix.h
@@ -96,6 +96,7 @@ struct fsl_audmix {
 	struct platform_device *pdev;
 	struct regmap *regmap;
 	struct clk *ipg_clk;
+	spinlock_t lock; /* Protect tdms */
 	u8 tdms;
 };