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 --- sound/soc/codecs/ssm2602.c | 30 ++++++++++++++++-------------- 1 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/sound/soc/codecs/ssm2602.c b/sound/soc/codecs/ssm2602.c index e149ec6..3cb3271 100644 --- a/sound/soc/codecs/ssm2602.c +++ b/sound/soc/codecs/ssm2602.c @@ -343,12 +343,14 @@ static void ssm2602_shutdown(struct snd_pcm_substream *substream, static int ssm2602_mute(struct snd_soc_dai *dai, int mute) { struct snd_soc_codec *codec = dai->codec; - u16 mute_reg = snd_soc_read(codec, SSM2602_APDIGI) & ~APDIGI_ENABLE_DAC_MUTE; + if (mute) - snd_soc_write(codec, SSM2602_APDIGI, - mute_reg | APDIGI_ENABLE_DAC_MUTE); + snd_soc_update_bits(codec, SSM2602_APDIGI, + APDIGI_ENABLE_DAC_MUTE, + APDIGI_ENABLE_DAC_MUTE); else - snd_soc_write(codec, SSM2602_APDIGI, mute_reg); + snd_soc_update_bits(codec, SSM2602_APDIGI, + APDIGI_ENABLE_DAC_MUTE, 0); return 0; }

@@ -540,12 +542,12 @@ static int ssm2602_resume(struct snd_soc_codec *codec) static int ssm2602_probe(struct snd_soc_codec *codec) { struct snd_soc_dapm_context *dapm = &codec->dapm; - int ret, reg; + int ret;

- reg = snd_soc_read(codec, SSM2602_LOUT1V); - snd_soc_write(codec, SSM2602_LOUT1V, reg | LOUT1V_LRHP_BOTH); - reg = snd_soc_read(codec, SSM2602_ROUT1V); - snd_soc_write(codec, SSM2602_ROUT1V, reg | ROUT1V_RLHP_BOTH); + snd_soc_update_bits(codec, SSM2602_LOUT1V, + LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH); + snd_soc_update_bits(codec, SSM2602_ROUT1V, + ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH);

ret = snd_soc_add_controls(codec, ssm2602_snd_controls, ARRAY_SIZE(ssm2602_snd_controls)); @@ -578,7 +580,7 @@ static int ssm2604_probe(struct snd_soc_codec *codec) static int ssm260x_probe(struct snd_soc_codec *codec) { struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec); - int ret, reg; + int ret;

pr_info("ssm2602 Audio Codec %s", SSM2602_VERSION);

@@ -595,10 +597,10 @@ static int ssm260x_probe(struct snd_soc_codec *codec) }

/* set the update bits */ - reg = snd_soc_read(codec, SSM2602_LINVOL); - snd_soc_write(codec, SSM2602_LINVOL, reg | LINVOL_LRIN_BOTH); - reg = snd_soc_read(codec, SSM2602_RINVOL); - snd_soc_write(codec, SSM2602_RINVOL, reg | RINVOL_RLIN_BOTH); + snd_soc_update_bits(codec, SSM2602_LINVOL, + LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH); + snd_soc_update_bits(codec, SSM2602_RINVOL, + RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH); /*select Line in as default input*/ snd_soc_write(codec, SSM2602_APANA, APANA_SELECT_DAC | APANA_ENABLE_MIC_BOOST);