From: Axel Lin <axel.lin@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Liam Girdwood <lrg@ti.com>,
Mark Brown <broonie@opensource.wolfsonmicro.com>,
Jarkko Nikula <jhnikula@gmail.com>,
Vladimir Barinov <vbarinov@embeddedalley.com>,
alsa-devel@alsa-project.org
Subject: [PATCH] ASoC: tlv320aic3x: Use snd_soc_update_bits for read-modify-write
Date: Wed, 26 Oct 2011 22:13:17 +0800 [thread overview]
Message-ID: <1319638397.6637.2.camel@phoenix> (raw)
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/tlv320aic3x.c | 41 +++++++++++++--------------------------
1 files changed, 14 insertions(+), 27 deletions(-)
diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index 7a49390..a77f6ea 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -833,7 +833,6 @@ static int aic3x_hw_params(struct snd_pcm_substream *substream,
int codec_clk = 0, bypass_pll = 0, fsref, last_clk = 0;
u8 data, j, r, p, pll_q, pll_p = 1, pll_r = 1, pll_j = 1;
u16 d, pll_d = 1;
- u8 reg;
int clk;
/* select data word length */
@@ -869,14 +868,13 @@ static int aic3x_hw_params(struct snd_pcm_substream *substream,
snd_soc_write(codec, AIC3X_PLL_PROGA_REG, pll_q << PLLQ_SHIFT);
snd_soc_write(codec, AIC3X_GPIOB_REG, CODEC_CLKIN_CLKDIV);
/* disable PLL if it is bypassed */
- reg = snd_soc_read(codec, AIC3X_PLL_PROGA_REG);
- snd_soc_write(codec, AIC3X_PLL_PROGA_REG, reg & ~PLL_ENABLE);
+ snd_soc_update_bits(codec, AIC3X_PLL_PROGA_REG, PLL_ENABLE, 0);
} else {
snd_soc_write(codec, AIC3X_GPIOB_REG, CODEC_CLKIN_PLLDIV);
/* enable PLL when it is used */
- reg = snd_soc_read(codec, AIC3X_PLL_PROGA_REG);
- snd_soc_write(codec, AIC3X_PLL_PROGA_REG, reg | PLL_ENABLE);
+ snd_soc_update_bits(codec, AIC3X_PLL_PROGA_REG,
+ PLL_ENABLE, PLL_ENABLE);
}
/* Route Left DAC to left channel input and
@@ -1155,7 +1153,6 @@ static int aic3x_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct aic3x_priv *aic3x = snd_soc_codec_get_drvdata(codec);
- u8 reg;
switch (level) {
case SND_SOC_BIAS_ON:
@@ -1164,9 +1161,8 @@ static int aic3x_set_bias_level(struct snd_soc_codec *codec,
if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY &&
aic3x->master) {
/* enable pll */
- reg = snd_soc_read(codec, AIC3X_PLL_PROGA_REG);
- snd_soc_write(codec, AIC3X_PLL_PROGA_REG,
- reg | PLL_ENABLE);
+ snd_soc_update_bits(codec, AIC3X_PLL_PROGA_REG,
+ PLL_ENABLE, PLL_ENABLE);
}
break;
case SND_SOC_BIAS_STANDBY:
@@ -1175,9 +1171,8 @@ static int aic3x_set_bias_level(struct snd_soc_codec *codec,
if (codec->dapm.bias_level == SND_SOC_BIAS_PREPARE &&
aic3x->master) {
/* disable pll */
- reg = snd_soc_read(codec, AIC3X_PLL_PROGA_REG);
- snd_soc_write(codec, AIC3X_PLL_PROGA_REG,
- reg & ~PLL_ENABLE);
+ snd_soc_update_bits(codec, AIC3X_PLL_PROGA_REG,
+ PLL_ENABLE, 0);
}
break;
case SND_SOC_BIAS_OFF:
@@ -1294,7 +1289,6 @@ static int aic3x_resume(struct snd_soc_codec *codec)
static int aic3x_init(struct snd_soc_codec *codec)
{
struct aic3x_priv *aic3x = snd_soc_codec_get_drvdata(codec);
- int reg;
snd_soc_write(codec, AIC3X_PAGE_SELECT, PAGE0_SELECT);
snd_soc_write(codec, AIC3X_RESET, SOFT_RESET);
@@ -1316,20 +1310,13 @@ static int aic3x_init(struct snd_soc_codec *codec)
snd_soc_write(codec, DACR1_2_MONOLOPM_VOL, DEFAULT_VOL | ROUTE_ON);
/* unmute all outputs */
- reg = snd_soc_read(codec, LLOPM_CTRL);
- snd_soc_write(codec, LLOPM_CTRL, reg | UNMUTE);
- reg = snd_soc_read(codec, RLOPM_CTRL);
- snd_soc_write(codec, RLOPM_CTRL, reg | UNMUTE);
- reg = snd_soc_read(codec, MONOLOPM_CTRL);
- snd_soc_write(codec, MONOLOPM_CTRL, reg | UNMUTE);
- reg = snd_soc_read(codec, HPLOUT_CTRL);
- snd_soc_write(codec, HPLOUT_CTRL, reg | UNMUTE);
- reg = snd_soc_read(codec, HPROUT_CTRL);
- snd_soc_write(codec, HPROUT_CTRL, reg | UNMUTE);
- reg = snd_soc_read(codec, HPLCOM_CTRL);
- snd_soc_write(codec, HPLCOM_CTRL, reg | UNMUTE);
- reg = snd_soc_read(codec, HPRCOM_CTRL);
- snd_soc_write(codec, HPRCOM_CTRL, reg | UNMUTE);
+ snd_soc_update_bits(codec, LLOPM_CTRL, UNMUTE, UNMUTE);
+ snd_soc_update_bits(codec, RLOPM_CTRL, UNMUTE, UNMUTE);
+ snd_soc_update_bits(codec, MONOLOPM_CTRL, UNMUTE, UNMUTE);
+ snd_soc_update_bits(codec, HPLOUT_CTRL, UNMUTE, UNMUTE);
+ snd_soc_update_bits(codec, HPROUT_CTRL, UNMUTE, UNMUTE);
+ snd_soc_update_bits(codec, HPLCOM_CTRL, UNMUTE, UNMUTE);
+ snd_soc_update_bits(codec, HPRCOM_CTRL, UNMUTE, UNMUTE);
/* ADC default volume and unmute */
snd_soc_write(codec, LADC_VOL, DEFAULT_GAIN);
--
1.7.5.4
next reply other threads:[~2011-10-26 14:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-26 14:13 Axel Lin [this message]
2011-10-27 9:18 ` [PATCH] ASoC: tlv320aic3x: Use snd_soc_update_bits for read-modify-write Girdwood, Liam
2011-10-27 9:58 ` Mark Brown
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