ENGR00221689 wm8962: add wait time after enable power supply

add 100ms wait time after enable power supply for
power stability

Signed-off-by: Gary Zhang <b13634@freescale.com>

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 8558be580ee37577a584edd182c43dee2adb4722..b1453115706778fdfa805e15d57f383365b28dac 100644 (file)
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -5,6 +5,7 @@
  *
  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
  *
+ * Copyright (C) 2012 Freescale Semiconductor, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -4019,7 +4020,7 @@ static int wm8962_probe(struct snd_soc_codec *codec)
                dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
                goto err_get;
        }
-
+       msleep(100);
        ret = snd_soc_read(codec, WM8962_SOFTWARE_RESET);
        if (ret < 0) {
                dev_err(codec->dev, "Failed to read ID register\n");