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authorMark Brown <broonie@linaro.org>2013-09-25 13:14:41 +0100
committerMark Brown <broonie@linaro.org>2013-09-25 13:30:59 +0100
commit5b0959d472c215e6d712ac47e64110bd125ddd07 (patch)
tree9623fca8f2a2219cf37de7c7855466dae40b0bd2 /sound/soc/codecs/tlv320aic26.c
parent806955dd9cf071ecd99acbaa8c73ae1f34dcf83d (diff)
downloadlinux-5b0959d472c215e6d712ac47e64110bd125ddd07.tar.bz2
ASoC: tlv320aic26: Use snd_soc_update_bits()
Use snd_soc_update_bits() rather than open coding. Since the register cache is currently only used where update_bits() is used this means the current register cache can be removed entirely. Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/codecs/tlv320aic26.c')
-rw-r--r--sound/soc/codecs/tlv320aic26.c51
1 files changed, 13 insertions, 38 deletions
diff --git a/sound/soc/codecs/tlv320aic26.c b/sound/soc/codecs/tlv320aic26.c
index 32c6b0768e56..4d8244750f23 100644
--- a/sound/soc/codecs/tlv320aic26.c
+++ b/sound/soc/codecs/tlv320aic26.c
@@ -74,19 +74,6 @@ static unsigned int aic26_reg_read(struct snd_soc_codec *codec,
return value;
}
-static unsigned int aic26_reg_read_cache(struct snd_soc_codec *codec,
- unsigned int reg)
-{
- u16 *cache = codec->reg_cache;
-
- if (reg >= AIC26_NUM_REGS) {
- WARN_ON_ONCE(1);
- return 0;
- }
-
- return cache[reg];
-}
-
static int aic26_reg_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int value)
{
@@ -195,19 +182,15 @@ static int aic26_hw_params(struct snd_pcm_substream *substream,
snd_soc_write(codec, AIC26_REG_PLL_PROG2, reg);
/* Audio Control 3 (master mode, fsref rate) */
- reg = aic26_reg_read_cache(codec, AIC26_REG_AUDIO_CTRL3);
- reg &= ~0xf800;
if (aic26->master)
- reg |= 0x0800;
+ reg = 0x0800;
if (fsref == 48000)
- reg |= 0x2000;
- snd_soc_write(codec, AIC26_REG_AUDIO_CTRL3, reg);
+ reg = 0x2000;
+ snd_soc_update_bits(codec, AIC26_REG_AUDIO_CTRL3, 0xf800, reg);
/* Audio Control 1 (FSref divisor) */
- reg = aic26_reg_read_cache(codec, AIC26_REG_AUDIO_CTRL1);
- reg &= ~0x0fff;
- reg |= wlen | aic26->datfm | (divisor << 3) | divisor;
- snd_soc_write(codec, AIC26_REG_AUDIO_CTRL1, reg);
+ reg = wlen | aic26->datfm | (divisor << 3) | divisor;
+ snd_soc_update_bits(codec, AIC26_REG_AUDIO_CTRL1, 0xfff, reg);
return 0;
}
@@ -219,16 +202,16 @@ static int aic26_mute(struct snd_soc_dai *dai, int mute)
{
struct snd_soc_codec *codec = dai->codec;
struct aic26 *aic26 = snd_soc_codec_get_drvdata(codec);
- u16 reg = aic26_reg_read_cache(codec, AIC26_REG_DAC_GAIN);
+ u16 reg;
dev_dbg(&aic26->spi->dev, "aic26_mute(dai=%p, mute=%i)\n",
dai, mute);
if (mute)
- reg |= 0x8080;
+ reg = 0x8080;
else
- reg &= ~0x8080;
- snd_soc_write(codec, AIC26_REG_DAC_GAIN, reg);
+ reg = 0;
+ snd_soc_update_bits(codec, AIC26_REG_DAC_GAIN, 0x8000, reg);
return 0;
}
@@ -346,7 +329,7 @@ static ssize_t aic26_keyclick_show(struct device *dev,
struct aic26 *aic26 = dev_get_drvdata(dev);
int val, amp, freq, len;
- val = aic26_reg_read_cache(aic26->codec, AIC26_REG_AUDIO_CTRL2);
+ val = snd_soc_read(aic26->codec, AIC26_REG_AUDIO_CTRL2);
amp = (val >> 12) & 0x7;
freq = (125 << ((val >> 8) & 0x7)) >> 1;
len = 2 * (1 + ((val >> 4) & 0xf));
@@ -360,11 +343,9 @@ static ssize_t aic26_keyclick_set(struct device *dev,
const char *buf, size_t count)
{
struct aic26 *aic26 = dev_get_drvdata(dev);
- int val;
- val = aic26_reg_read_cache(aic26->codec, AIC26_REG_AUDIO_CTRL2);
- val |= 0x8000;
- snd_soc_write(aic26->codec, AIC26_REG_AUDIO_CTRL2, val);
+ snd_soc_update_bits(aic26->codec, AIC26_REG_AUDIO_CTRL2,
+ 0x8000, 0x800);
return count;
}
@@ -377,7 +358,7 @@ static DEVICE_ATTR(keyclick, 0644, aic26_keyclick_show, aic26_keyclick_set);
static int aic26_probe(struct snd_soc_codec *codec)
{
struct aic26 *aic26 = dev_get_drvdata(codec->dev);
- int ret, i, reg;
+ int ret, reg;
aic26->codec = codec;
@@ -393,10 +374,6 @@ static int aic26_probe(struct snd_soc_codec *codec)
reg |= 0x0800; /* set master mode */
snd_soc_write(codec, AIC26_REG_AUDIO_CTRL3, reg);
- /* Fill register cache */
- for (i = 0; i < codec->driver->reg_cache_size; i++)
- snd_soc_read(codec, i);
-
/* Register the sysfs files for debugging */
/* Create SysFS files */
ret = device_create_file(codec->dev, &dev_attr_keyclick);
@@ -410,8 +387,6 @@ static struct snd_soc_codec_driver aic26_soc_codec_dev = {
.probe = aic26_probe,
.read = aic26_reg_read,
.write = aic26_reg_write,
- .reg_cache_size = AIC26_NUM_REGS,
- .reg_word_size = sizeof(u16),
.controls = aic26_snd_controls,
.num_controls = ARRAY_SIZE(aic26_snd_controls),
.dapm_widgets = tlv320aic26_dapm_widgets,