From db966f8abb9ba74f7d5a7230f51572f52c31c4e5 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 6 Feb 2012 12:07:08 +0000 Subject: [PATCH] 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 Cc: stable@vger.kernel.org --- sound/soc/codecs/wm8994.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c index 8623950d55f8..81795ebcab17 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, -- GitLab