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ASoC: Add debug trace for bias level transitions 

A standard way of making sure we know when the bias level changes.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2009-05-18 15:44:43 +01:00
parent 452c5eaa0d
commit f83fba8baa
1 changed files with 18 additions and 0 deletions
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18
sound/soc/soc-dapm.c
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@ -110,6 +110,24 @@ static int snd_soc_dapm_set_bias_level(struct snd_soc_device *socdev,
struct snd_soc_codec *codec = socdev->card->codec;
int ret = 0;
switch (level) {
case SND_SOC_BIAS_ON:
dev_dbg(socdev->dev, "Setting full bias\n");
break;
case SND_SOC_BIAS_PREPARE:
dev_dbg(socdev->dev, "Setting bias prepare\n");
break;
case SND_SOC_BIAS_STANDBY:
dev_dbg(socdev->dev, "Setting standby bias\n");
break;
case SND_SOC_BIAS_OFF:
dev_dbg(socdev->dev, "Setting bias off\n");
break;
default:
dev_err(socdev->dev, "Setting invalid bias %d\n", level);
return -EINVAL;
}
if (card->set_bias_level)
ret = card->set_bias_level(card, level);
if (ret == 0 && codec->set_bias_level)