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authorMark Brown <broonie@opensource.wolfsonmicro.com>2012-02-06 12:07:08 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-02-06 12:08:33 +0000
commitdb966f8abb9ba74f7d5a7230f51572f52c31c4e5 (patch)
tree4e164a29e7913cdfd9c1a34780cfb39cc24eca19
parent43b6cec27e1e50a1de3eff47e66e502f3fe7e66e (diff)
downloadop-kernel-dev-db966f8abb9ba74f7d5a7230f51572f52c31c4e5.zip
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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
-rw-r--r--sound/soc/codecs/wm8994.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index 8623950..81795eb 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -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,
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