From 4ae4c20ceb593c1a8f392bb1100cc60a1f04ee4c Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Mon, 30 Jul 2012 18:24:19 +0100
Subject: 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/codecs/wm8962.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'sound')

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index c850e3d84ed..f16f587dfb0 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -2890,6 +2890,9 @@ 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:
-- 
cgit v1.2.3-18-g5258