ASoC: wm9705: Remove ac97_read/ac97_write wrappers

Since the regmap conversion ac97_read/ac97_write are just simple wrappers
around snd_soc_read/snd_soc_write. Use those instead directly and remove
the wrappers.

Also use snd_soc_update_bits() where appropriate.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/wm9705.c

@@ -226,33 +226,20 @@ static const struct snd_soc_dapm_route wm9705_audio_map[] = {
 	{"Right ADC", NULL, "ADC PGA"},
 };
 
-static unsigned int ac97_read(struct snd_soc_codec *codec, unsigned int reg)
-{
-	return snd_soc_read(codec, reg);
-}
-
-static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
-	unsigned int val)
-{
-	return snd_soc_write(codec, reg, val);
-}
-
 static int ac97_prepare(struct snd_pcm_substream *substream,
 			struct snd_soc_dai *dai)
 {
 	struct snd_soc_codec *codec = dai->codec;
 	int reg;
-	u16 vra;
 
-	vra = ac97_read(codec, AC97_EXTENDED_STATUS);
-	ac97_write(codec, AC97_EXTENDED_STATUS, vra | 0x1);
+	snd_soc_update_bits(codec, AC97_EXTENDED_STATUS, 0x1, 0x1);
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 		reg = AC97_PCM_FRONT_DAC_RATE;
 	else
 		reg = AC97_PCM_LR_ADC_RATE;
 
-	return ac97_write(codec, reg, substream->runtime->rate);
+	return snd_soc_write(codec, reg, substream->runtime->rate);
 }
 
 #define WM9705_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | \
@@ -299,7 +286,7 @@ static struct snd_soc_dai_driver wm9705_dai[] = {
 static int wm9705_soc_suspend(struct snd_soc_codec *codec)
 {
 	regcache_cache_bypass(codec->component.regmap, true);
-	ac97_write(codec, AC97_POWERDOWN, 0xffff);
+	snd_soc_write(codec, AC97_POWERDOWN, 0xffff);
 	regcache_cache_bypass(codec->component.regmap, false);
 
 	return 0;