[PATCH] ASoC: ak4535: Improve readability for setting mute

Axel Lin
2010-12-01T09:16:49Z

The mute/unmute is controled by SMUTE (Soft Mute Control bit):
0: Normal Operation (Default)
1: DAC outputs soft-muted

I think this change improves readability.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
sound/soc/codecs/ak4535.c | 10 +++++-----
1 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/sound/soc/codecs/ak4535.c b/sound/soc/codecs/ak4535.c
index 7367545..8b38739 100644
--- a/sound/soc/codecs/ak4535.c
+++ b/sound/soc/codecs/ak4535.c
@@ -366,9 +366,9 @@ static int ak4535_set_dai_fmt(struct snd_soc_dai *codec_dai,
static int ak4535_mute(struct snd_soc_dai *dai, int mute)
{
struct snd_soc_codec *codec = dai->codec;
- u16 mute_reg = ak4535_read_reg_cache(codec, AK4535_DAC) & 0xffdf;
+ u16 mute_reg = ak4535_read_reg_cache(codec, AK4535_DAC);
if (!mute)
- ak4535_write(codec, AK4535_DAC, mute_reg);
+ ak4535_write(codec, AK4535_DAC, mute_reg & ~0x20);
else
ak4535_write(codec, AK4535_DAC, mute_reg | 0x20);
return 0;
@@ -381,11 +381,11 @@ static int ak4535_set_bias_level(struct snd_soc_codec *codec,

switch (level) {
case SND_SOC_BIAS_ON:
- mute_reg = ak4535_read_reg_cache(codec, AK4535_DAC) & 0xffdf;
- ak4535_write(codec, AK4535_DAC, mute_reg);
+ mute_reg = ak4535_read_reg_cache(codec, AK4535_DAC);
+ ak4535_write(codec, AK4535_DAC, mute_reg & ~0x20);
break;
case SND_SOC_BIAS_PREPARE:
- mute_reg = ak4535_read_reg_cache(codec, AK4535_DAC) & 0xffdf;
+ mute_reg = ak4535_read_reg_cache(codec, AK4535_DAC);
ak4535_write(codec, AK4535_DAC, mute_reg | 0x20);
break;
case SND_SOC_BIAS_STANDBY:
--
1.7.2