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authorAxel Lin <axel.lin@gmail.com>2011-10-17 07:50:46 +0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-10-18 01:49:28 +0400
commita6785d7df8d2790d99a4788a612764a92fb9f498 (patch)
tree897d3ba85a299a6a24e087220e2810a086cc1595
parent29c6a01df8de1329303da09ca9793e9f65608216 (diff)
downloadlinux-a6785d7df8d2790d99a4788a612764a92fb9f498.tar.xz
ASoC: wm8580: 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> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
-rw-r--r--sound/soc/codecs/wm8580.c22
1 files changed, 9 insertions, 13 deletions
diff --git a/sound/soc/codecs/wm8580.c b/sound/soc/codecs/wm8580.c
index b25672709474..8212b3c8bfdd 100644
--- a/sound/soc/codecs/wm8580.c
+++ b/sound/soc/codecs/wm8580.c
@@ -430,8 +430,7 @@ static int wm8580_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
/* Always disable the PLL - it is not safe to leave it running
* while reprogramming it.
*/
- reg = snd_soc_read(codec, WM8580_PWRDN2);
- snd_soc_write(codec, WM8580_PWRDN2, reg | pwr_mask);
+ snd_soc_update_bits(codec, WM8580_PWRDN2, pwr_mask, pwr_mask);
if (!freq_in || !freq_out)
return 0;
@@ -449,8 +448,7 @@ static int wm8580_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
snd_soc_write(codec, WM8580_PLLA4 + offset, reg);
/* All done, turn it on */
- reg = snd_soc_read(codec, WM8580_PWRDN2);
- snd_soc_write(codec, WM8580_PWRDN2, reg & ~pwr_mask);
+ snd_soc_update_bits(codec, WM8580_PWRDN2, pwr_mask, 0);
return 0;
}
@@ -748,7 +746,6 @@ static int wm8580_digital_mute(struct snd_soc_dai *codec_dai, int mute)
static int wm8580_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
- u16 reg;
switch (level) {
case SND_SOC_BIAS_ON:
case SND_SOC_BIAS_PREPARE:
@@ -757,20 +754,19 @@ static int wm8580_set_bias_level(struct snd_soc_codec *codec,
case SND_SOC_BIAS_STANDBY:
if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
/* Power up and get individual control of the DACs */
- reg = snd_soc_read(codec, WM8580_PWRDN1);
- reg &= ~(WM8580_PWRDN1_PWDN | WM8580_PWRDN1_ALLDACPD);
- snd_soc_write(codec, WM8580_PWRDN1, reg);
+ snd_soc_update_bits(codec, WM8580_PWRDN1,
+ WM8580_PWRDN1_PWDN |
+ WM8580_PWRDN1_ALLDACPD, 0);
/* Make VMID high impedance */
- reg = snd_soc_read(codec, WM8580_ADC_CONTROL1);
- reg &= ~0x100;
- snd_soc_write(codec, WM8580_ADC_CONTROL1, reg);
+ snd_soc_update_bits(codec, WM8580_ADC_CONTROL1,
+ 0x100, 0);
}
break;
case SND_SOC_BIAS_OFF:
- reg = snd_soc_read(codec, WM8580_PWRDN1);
- snd_soc_write(codec, WM8580_PWRDN1, reg | WM8580_PWRDN1_PWDN);
+ snd_soc_update_bits(codec, WM8580_PWRDN1,
+ WM8580_PWRDN1_PWDN, WM8580_PWRDN1_PWDN);
break;
}
codec->dapm.bias_level = level;