[alsa-devel] [PATCH 06/22] ASoC: tas2552: Simplify the tas2552_mute function

Peter Ujfalusi peter.ujfalusi at ti.com
Thu Jun 4 14:22:30 CEST 2015


Initialize the cfg1_reg to 0 and set the mute bit only when it is needed.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi at ti.com>
---
 sound/soc/codecs/tas2552.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/tas2552.c b/sound/soc/codecs/tas2552.c
index 681b868a9e8c..2d52a397161d 100644
--- a/sound/soc/codecs/tas2552.c
+++ b/sound/soc/codecs/tas2552.c
@@ -254,13 +254,11 @@ static int tas2552_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
 
 static int tas2552_mute(struct snd_soc_dai *dai, int mute)
 {
-	u8 cfg1_reg;
+	u8 cfg1_reg = 0;
 	struct snd_soc_codec *codec = dai->codec;
 
 	if (mute)
-		cfg1_reg = TAS2552_MUTE;
-	else
-		cfg1_reg = ~TAS2552_MUTE;
+		cfg1_reg |= TAS2552_MUTE;
 
 	snd_soc_update_bits(codec, TAS2552_CFG_1, TAS2552_MUTE, cfg1_reg);
 
-- 
2.4.2



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