ASoC: fsl_sai: Disable bit clock with transmitter

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

Signed-off-by: Matus Gajdos <matuszpd@gmail.com>
Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230712124934.32232-1-matuszpd@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
index 54b4bf3..f7676d3 100644 (file)
--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c
@@ -713,7 +713,7 @@ 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 8254c35..550df87 100644 (file)
--- a/sound/soc/fsl/fsl_sai.h
+++ b/sound/soc/fsl/fsl_sai.h
@@ -91,6 +91,7 @@
 /* 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