From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Liam Girdwood <lrg@ti.com>
Cc: alsa-devel@alsa-project.org, patches@opensource.wolfsonmicro.com,
Mark Brown <broonie@opensource.wolfsonmicro.com>
Subject: [PATCH 4/4] ASoC: wm8994: Actively discharge VMID when not in use
Date: Sat, 11 Feb 2012 23:13:30 +0000 [thread overview]
Message-ID: <1329002010-5688-4-git-send-email-broonie@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <1329002010-5688-1-git-send-email-broonie@opensource.wolfsonmicro.com>
Ensure we're in a known state when we restart.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
sound/soc/codecs/wm8994.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index aa94ca1..3a69ec0 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -838,6 +838,10 @@ static void vmid_dereference(struct snd_soc_codec *codec)
WM8994_BIAS_ENA |
WM8994_VMID_SEL_MASK, 0);
+ /* Discharge VMID */
+ snd_soc_update_bits(codec, WM8994_ANTIPOP_2,
+ WM8994_VMID_DISCH, WM8994_VMID_DISCH);
+
/* Discharge line */
snd_soc_update_bits(codec, WM8994_ANTIPOP_1,
WM8994_LINEOUT1_DISCH |
--
1.7.9.rc1
prev parent reply other threads:[~2012-02-11 23:13 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-11 23:13 [PATCH 1/4] ASoC: wm_hubs: Improve single ended line output enable performance Mark Brown
2012-02-11 23:13 ` [PATCH 2/4] ASoC: wm_hubs: Clamp inputs to VMID while we ramp Mark Brown
2012-02-11 23:13 ` [PATCH 3/4] ASoC: wm8994: VMID management improvements Mark Brown
2012-02-11 23:13 ` Mark Brown [this message]
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