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authorAxel Lin <axel.lin@gmail.com>2011-10-18 06:25:08 +0800
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-10-19 12:07:43 +0100
commit54c96cfd1ac815d278aa43f37d063b0c5972db1f (patch)
tree4fba328ed7a7fc087f4e4c86fb3013ab22857631 /sound
parent4b1cfcb4f36dca33b4552d9612537e6c0ca73639 (diff)
downloadop-kernel-dev-54c96cfd1ac815d278aa43f37d063b0c5972db1f.zip
op-kernel-dev-54c96cfd1ac815d278aa43f37d063b0c5972db1f.tar.gz
ASoC: ad193x: Use snd_soc_update_bits for read-modify-write
Use snd_soc_update_bits for read-modify-write register access instead of open-coding it using snd_soc_read and snd_soc_write Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Barry Song <21cnbao@gmail.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/codecs/ad193x.c31
1 files changed, 15 insertions, 16 deletions
diff --git a/sound/soc/codecs/ad193x.c b/sound/soc/codecs/ad193x.c
index 39056ce..1206021 100644
--- a/sound/soc/codecs/ad193x.c
+++ b/sound/soc/codecs/ad193x.c
@@ -103,12 +103,14 @@ static const struct snd_soc_dapm_route audio_paths[] = {
static int ad193x_mute(struct snd_soc_dai *dai, int mute)
{
struct snd_soc_codec *codec = dai->codec;
- int reg;
- reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
- reg = (mute > 0) ? reg | AD193X_DAC_MASTER_MUTE : reg &
- (~AD193X_DAC_MASTER_MUTE);
- snd_soc_write(codec, AD193X_DAC_CTRL2, reg);
+ if (mute)
+ snd_soc_update_bits(codec, AD193X_DAC_CTRL2,
+ AD193X_DAC_MASTER_MUTE,
+ AD193X_DAC_MASTER_MUTE);
+ else
+ snd_soc_update_bits(codec, AD193X_DAC_CTRL2,
+ AD193X_DAC_MASTER_MUTE, 0);
return 0;
}
@@ -262,7 +264,7 @@ static int ad193x_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
- int word_len = 0, reg = 0, master_rate = 0;
+ int word_len = 0, master_rate = 0;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_codec *codec = rtd->codec;
@@ -297,18 +299,15 @@ static int ad193x_hw_params(struct snd_pcm_substream *substream,
break;
}
- reg = snd_soc_read(codec, AD193X_PLL_CLK_CTRL0);
- reg = (reg & (~AD193X_PLL_INPUT_MASK)) | master_rate;
- snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, reg);
+ snd_soc_update_bits(codec, AD193X_PLL_CLK_CTRL0,
+ AD193X_PLL_INPUT_MASK, master_rate);
- reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
- reg = (reg & (~AD193X_DAC_WORD_LEN_MASK))
- | (word_len << AD193X_DAC_WORD_LEN_SHFT);
- snd_soc_write(codec, AD193X_DAC_CTRL2, reg);
+ snd_soc_update_bits(codec, AD193X_DAC_CTRL2,
+ AD193X_DAC_WORD_LEN_MASK,
+ word_len << AD193X_DAC_WORD_LEN_SHFT);
- reg = snd_soc_read(codec, AD193X_ADC_CTRL1);
- reg = (reg & (~AD193X_ADC_WORD_LEN_MASK)) | word_len;
- snd_soc_write(codec, AD193X_ADC_CTRL1, reg);
+ snd_soc_update_bits(codec, AD193X_ADC_CTRL1,
+ AD193X_ADC_WORD_LEN_MASK, word_len);
return 0;
}
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