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authorAxel Lin <axel.lin@gmail.com>2011-10-20 10:54:13 +0800
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-10-20 15:02:26 +0100
commitf96c255df75782c97dca8e2529bc09cb80425fe7 (patch)
treede4bcb1e8e12906af315454afacee593eff96c53 /sound
parentcf0feafbc306718292dcda499bf299fc60cc8cc6 (diff)
downloadlinux-f96c255df75782c97dca8e2529bc09cb80425fe7.tar.bz2
ASoC: ak4671: 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: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/codecs/ak4671.c18
1 files changed, 6 insertions, 12 deletions
diff --git a/sound/soc/codecs/ak4671.c b/sound/soc/codecs/ak4671.c
index 41e3d5541bd4..de9ff66d3721 100644
--- a/sound/soc/codecs/ak4671.c
+++ b/sound/soc/codecs/ak4671.c
@@ -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);