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ASoC: ak4671: Use snd_soc_update_bits for read-modify-write

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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: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Axel Lin 2011-10-20 10:54:13 +08:00 committed by Mark Brown
parent cf0feafbc3
commit f96c255df7
1 changed files with 6 additions and 12 deletions
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18
sound/soc/codecs/ak4671.c
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@ -168,18 +168,15 @@ static int ak4671_out2_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_codec *codec = w->codec;
u8 reg;
switch (event) {
case SND_SOC_DAPM_POST_PMU:
reg = snd_soc_read(codec, AK4671_LOUT2_POWER_MANAGERMENT);
reg |= AK4671_MUTEN;
snd_soc_write(codec, AK4671_LOUT2_POWER_MANAGERMENT, reg);
snd_soc_update_bits(codec, AK4671_LOUT2_POWER_MANAGERMENT,
AK4671_MUTEN, AK4671_MUTEN);
break;
case SND_SOC_DAPM_PRE_PMD:
reg = snd_soc_read(codec, AK4671_LOUT2_POWER_MANAGERMENT);
reg &= ~AK4671_MUTEN;
snd_soc_write(codec, AK4671_LOUT2_POWER_MANAGERMENT, reg);
snd_soc_update_bits(codec, AK4671_LOUT2_POWER_MANAGERMENT,
AK4671_MUTEN, 0);
break;
}
@ -575,15 +572,12 @@ static int ak4671_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
static int ak4671_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
u8 reg;
switch (level) {
case SND_SOC_BIAS_ON:
case SND_SOC_BIAS_PREPARE:
case SND_SOC_BIAS_STANDBY:
reg = snd_soc_read(codec, AK4671_AD_DA_POWER_MANAGEMENT);
snd_soc_write(codec, AK4671_AD_DA_POWER_MANAGEMENT,
reg | AK4671_PMVCM);
snd_soc_update_bits(codec, AK4671_AD_DA_POWER_MANAGEMENT,
AK4671_PMVCM, AK4671_PMVCM);
break;
case SND_SOC_BIAS_OFF:
snd_soc_write(codec, AK4671_AD_DA_POWER_MANAGEMENT, 0x00);