[PATCH 5.4 115/158] ASoC: fsl_sai: Disable bit clock with transmitter

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5.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Matus Gajdos <matuszpd@xxxxxxxxx>

[ Upstream commit 269f399dc19f0e5c51711c3ba3bd06e0ef6ef403 ]

Otherwise bit clock remains running writing invalid data to the DAC.

Signed-off-by: Matus Gajdos <matuszpd@xxxxxxxxx>
Acked-by: Shengjiu Wang <shengjiu.wang@xxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/20230712124934.32232-1-matuszpd@xxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 sound/soc/fsl/fsl_sai.c | 2 +-
 sound/soc/fsl/fsl_sai.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
index ebca0778d3f57..fdbfaedda4ce8 100644
--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c
@@ -548,7 +548,7 @@ static void fsl_sai_config_disable(struct fsl_sai *sai, int dir)
 	u32 xcsr, count = 100;
 
 	regmap_update_bits(sai->regmap, FSL_SAI_xCSR(tx, ofs),
-			   FSL_SAI_CSR_TERE, 0);
+			   FSL_SAI_CSR_TERE | FSL_SAI_CSR_BCE, 0);
 
 	/* TERE will remain set till the end of current frame */
 	do {
diff --git a/sound/soc/fsl/fsl_sai.h b/sound/soc/fsl/fsl_sai.h
index 156ee28077b76..771990396804c 100644
--- a/sound/soc/fsl/fsl_sai.h
+++ b/sound/soc/fsl/fsl_sai.h
@@ -87,6 +87,7 @@
 /* SAI Transmit/Receive Control Register */
 #define FSL_SAI_CSR_TERE	BIT(31)
 #define FSL_SAI_CSR_SE		BIT(30)
+#define FSL_SAI_CSR_BCE		BIT(28)
 #define FSL_SAI_CSR_FR		BIT(25)
 #define FSL_SAI_CSR_SR		BIT(24)
 #define FSL_SAI_CSR_xF_SHIFT	16
-- 
2.40.1






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