[PATCH v3 2/3] ASoC: fsl_sai: Drop TMR/RMR settings for synchronous mode

[Shengjiu Wang]

Tx synchronous with Rx: The RMR is the word mask register, it is used
to mask any word in the frame, it is not relating to clock generation,
So it is no need to be changed when Tx is going to be enabled.

Rx synchronous with Tx: The TMR is the word mask register, it is used
to mask any word in the frame, it is not relating to clock generation,
So it is no need to be changed when Rx is going to be enabled.

Signed-off-by: Shengjiu Wang <shengjiu.wang at nxp.com>
Reviewed-by: Nicolin Chen <nicoleotsuka at gmail.com>
---
 sound/soc/fsl/fsl_sai.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
index 566c4747362a..334090d581ae 100644
--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c
@@ -488,8 +488,7 @@ static int fsl_sai_hw_params(struct snd_pcm_substream *substream,
 	/*
 	 * For SAI master mode, when Tx(Rx) sync with Rx(Tx) clock, Rx(Tx) will
 	 * generate bclk and frame clock for Tx(Rx), we should set RCR4(TCR4),
-	 * RCR5(TCR5) and RMR(TMR) for playback(capture), or there will be sync
-	 * error.
+	 * RCR5(TCR5) for playback(capture), or there will be sync error.
 	 */
 
 	if (!sai->is_slave_mode) {
@@ -500,8 +499,6 @@ static int fsl_sai_hw_params(struct snd_pcm_substream *substream,
 			regmap_update_bits(sai->regmap, FSL_SAI_TCR5(ofs),
 				FSL_SAI_CR5_WNW_MASK | FSL_SAI_CR5_W0W_MASK |
 				FSL_SAI_CR5_FBT_MASK, val_cr5);
-			regmap_write(sai->regmap, FSL_SAI_TMR,
-				~0UL - ((1 << channels) - 1));
 		} else if (!sai->synchronous[RX] && sai->synchronous[TX] && tx) {
 			regmap_update_bits(sai->regmap, FSL_SAI_RCR4(ofs),
 				FSL_SAI_CR4_SYWD_MASK | FSL_SAI_CR4_FRSZ_MASK,
@@ -509,8 +506,6 @@ static int fsl_sai_hw_params(struct snd_pcm_substream *substream,
 			regmap_update_bits(sai->regmap, FSL_SAI_RCR5(ofs),
 				FSL_SAI_CR5_WNW_MASK | FSL_SAI_CR5_W0W_MASK |
 				FSL_SAI_CR5_FBT_MASK, val_cr5);
-			regmap_write(sai->regmap, FSL_SAI_RMR,
-				~0UL - ((1 << channels) - 1));
 		}
 	}
 
-- 
2.27.0