[PATCH] ASoC: fsl_asrc: use regmap_write_bits to update clock source registers

From: Shengjiu Wang <redacted>

After a warm reboot the REG_ASRCSR register may not be in its hardware
reset state. regmap caches the register value as 0 (the assumed default),
so when the desired clock source index is also 0, regmap_update_bits()
skips the actual hardware write because it believes the register already
holds the correct value. This leaves a stale clock source in the hardware.

Replace regmap_update_bits() with regmap_write_bits() so that the masked
fields are always written to hardware regardless of the cached value.

Fixes: 3117bb3109dc ("ASoC: fsl_asrc: Add ASRC ASoC CPU DAI and platform drivers")
Signed-off-by: Shengjiu Wang <redacted>
---
 sound/soc/fsl/fsl_asrc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c
index 1c611ca89dea..56604fa1613a 100644
--- a/sound/soc/fsl/fsl_asrc.c
+++ b/sound/soc/fsl/fsl_asrc.c

@@ -521,10 +521,10 @@ static int fsl_asrc_config_pair(struct fsl_asrc_pair *pair, bool use_ideal_rate)
 			   ASRCTR_USR(index));
 
 	/* Set the input and output clock sources */
-	regmap_update_bits(asrc->regmap, REG_ASRCSR,
-			   ASRCSR_AICSi_MASK(index) | ASRCSR_AOCSi_MASK(index),
-			   ASRCSR_AICS(index, clk_index[IN]) |
-			   ASRCSR_AOCS(index, clk_index[OUT]));
+	regmap_write_bits(asrc->regmap, REG_ASRCSR,
+			  ASRCSR_AICSi_MASK(index) | ASRCSR_AOCSi_MASK(index),
+			  ASRCSR_AICS(index, clk_index[IN]) |
+			  ASRCSR_AOCS(index, clk_index[OUT]));
 
 	/* Calculate the input clock divisors */
 	indiv = fsl_asrc_cal_asrck_divisor(pair, div[IN]);

-- 
2.34.1