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ASoC: wm8994: Enabling VMID should take a runtime PM reference 

We can enable VMID independently of the bias in some use cases so we need
to ensure that the core device is powered up.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Mark Brown 2012-02-06 12:07:08 +00:00
parent 43b6cec27e
commit db966f8abb
1 changed files with 4 additions and 0 deletions
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4
sound/soc/codecs/wm8994.c
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@ -770,6 +770,8 @@ static void vmid_reference(struct snd_soc_codec *codec)
{
struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec);
pm_runtime_get_sync(codec->dev);
wm8994->vmid_refcount++;
dev_dbg(codec->dev, "Referencing VMID, refcount is now %d\n",
@ -837,6 +839,8 @@ static void vmid_dereference(struct snd_soc_codec *codec)
WM8994_VMID_BUF_ENA |
WM8994_VMID_RAMP_MASK, 0);
}
pm_runtime_put(codec->dev);
}
static int vmid_event(struct snd_soc_dapm_widget *w,