ASoC: fsl_sai: Disable bit clock with transmitter

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

Signed-off-by: Matus Gajdos <[email protected]>
Acked-by: Shengjiu Wang <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: matuszpd

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 {

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