ASoC: pcm512x: Replace direct snd_soc_codec dapm field access

The dapm field of the snd_soc_codec struct is eventually going to be
removed, in preparation for this replace all manual access to
codec->dapm.bias_level with snd_soc_codec_get_bias_level().
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/pcm512x.c

@@ -242,7 +242,7 @@ static int pcm512x_overclock_pll_put(struct snd_kcontrol *kcontrol,
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct pcm512x_priv *pcm512x = snd_soc_codec_get_drvdata(codec);
 
-	switch (codec->dapm.bias_level) {
+	switch (snd_soc_codec_get_bias_level(codec)) {
 	case SND_SOC_BIAS_OFF:
 	case SND_SOC_BIAS_STANDBY:
 		break;
@@ -270,7 +270,7 @@ static int pcm512x_overclock_dsp_put(struct snd_kcontrol *kcontrol,
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct pcm512x_priv *pcm512x = snd_soc_codec_get_drvdata(codec);
 
-	switch (codec->dapm.bias_level) {
+	switch (snd_soc_codec_get_bias_level(codec)) {
 	case SND_SOC_BIAS_OFF:
 	case SND_SOC_BIAS_STANDBY:
 		break;
@@ -298,7 +298,7 @@ static int pcm512x_overclock_dac_put(struct snd_kcontrol *kcontrol,
 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 	struct pcm512x_priv *pcm512x = snd_soc_codec_get_drvdata(codec);
 
-	switch (codec->dapm.bias_level) {
+	switch (snd_soc_codec_get_bias_level(codec)) {
 	case SND_SOC_BIAS_OFF:
 	case SND_SOC_BIAS_STANDBY:
 		break;