From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Mon, 30 Jul 2012 17:24:19 +0000 (+0100)
Subject: ASoC: wm8962: Allow VMID time to fully ramp
X-Git-Tag: v3.2.27~18
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2145a2c9d596f59f6dd32932c98f9a1025bbb3b8;p=pandora-kernel.git

ASoC: wm8962: Allow VMID time to fully ramp

commit 9d40e5582c9c4cfb6977ba2a0ca9c2ed82c56f21 upstream.

Required for reliable power up from cold.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 07dd7ebe95b7..e97df24116ad 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -3105,6 +3105,9 @@ static int wm8962_set_bias_level(struct snd_soc_codec *codec,
 		/* VMID 2*250k */
 		snd_soc_update_bits(codec, WM8962_PWR_MGMT_1,
 				    WM8962_VMID_SEL_MASK, 0x100);
+
+		if (codec->dapm.bias_level == SND_SOC_BIAS_OFF)
+			msleep(100);
 		break;
 
 	case SND_SOC_BIAS_OFF: