ASoC: uda1380: 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().

Also drop the unnecessary check at the beginning of the
uda1380_set_bias_level() which compares the current level to the target
level and aborts if they are the same. Since the core will not call the
set_bias_level() callback if we already are in the target state the result
of the check is always false.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/uda1380.c

@@ -590,9 +590,6 @@ static int uda1380_set_bias_level(struct snd_soc_codec *codec,
 	int reg;
 	struct uda1380_platform_data *pdata = codec->dev->platform_data;
 
-	if (codec->dapm.bias_level == level)
-		return 0;
-
 	switch (level) {
 	case SND_SOC_BIAS_ON:
 	case SND_SOC_BIAS_PREPARE:
@@ -600,7 +597,7 @@ static int uda1380_set_bias_level(struct snd_soc_codec *codec,
 		uda1380_write(codec, UDA1380_PM, R02_PON_BIAS | pm);
 		break;
 	case SND_SOC_BIAS_STANDBY:
-		if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
+		if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
 			if (gpio_is_valid(pdata->gpio_power)) {
 				gpio_set_value(pdata->gpio_power, 1);
 				mdelay(1);