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>

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,