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ASoC: tlv320dac33: Avoid powering off while in BIAS_OFF

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Avoid calling the dac33_hard_power when the codec was
already in BIAS_OFF state.
This could happen in device suspend and module removal
time.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This commit is contained in:
Peter Ujfalusi 2010-05-17 14:21:46 +03:00 committed by Liam Girdwood
parent 7fd1d74bfc
commit 2d4cdd6fc9
1 changed files with 3 additions and 0 deletions
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3
sound/soc/codecs/tlv320dac33.c
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@ -589,6 +589,9 @@ static int dac33_set_bias_level(struct snd_soc_codec *codec,
} }
break; break;
case SND_SOC_BIAS_OFF: case SND_SOC_BIAS_OFF:
/* Do not power off, when the codec is already off */
if (codec->bias_level == SND_SOC_BIAS_OFF)
return 0;
ret = dac33_hard_power(codec, 0); ret = dac33_hard_power(codec, 0);
if (ret != 0) if (ret != 0)
return ret; return ret;