[PATCH 3.19.y-ckt 072/130] ASoC: ssm4567: Keep TDM_BCLKS in ssm4567_set_dai_fmt

From: Kamal Mostafa
Date: Thu Aug 27 2015 - 18:13:11 EST

3.19.8-ckt6 -stable review patch. If anyone has any objections, please let me know.


From: Ben Zhang <benzh@xxxxxxxxxxxx>

commit a6c2a32ac83567f15e9af3dcbc73148ce68b2ced upstream.

The regmap_write in ssm4567_set_dai_fmt accidentally clears the
TDM_BCLKS field which was set earlier by ssm4567_set_tdm_slot.

This patch fixes it by using regmap_update_bits with proper mask.

Signed-off-by: Ben Zhang <benzh@xxxxxxxxxxxx>
Acked-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
Acked-by: Anatol Pomozov <anatol.pomozov@xxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
sound/soc/codecs/ssm4567.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/ssm4567.c b/sound/soc/codecs/ssm4567.c
index a984485..f7549cc 100644
--- a/sound/soc/codecs/ssm4567.c
+++ b/sound/soc/codecs/ssm4567.c
@@ -315,7 +315,13 @@ static int ssm4567_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
if (invert_fclk)
ctrl1 |= SSM4567_SAI_CTRL_1_FSYNC;

- return regmap_write(ssm4567->regmap, SSM4567_REG_SAI_CTRL_1, ctrl1);
+ return regmap_update_bits(ssm4567->regmap, SSM4567_REG_SAI_CTRL_1,
+ SSM4567_SAI_CTRL_1_LJ |
+ SSM4567_SAI_CTRL_1_TDM |
+ ctrl1);

static int ssm4567_set_power(struct ssm4567 *ssm4567, bool enable)

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