commit ce3bdaa8710c10eec5a6dae67aaf73088d0ced4f
author Mark Brown <broonie@opensource.wolfsonmicro.com> Thu Feb 19 14:29:49 2009 +0000
committer Mark Brown <broonie@opensource.wolfsonmicro.com> Thu Feb 19 14:30:57 2009 +0000
tree c6d6c286b36c01e202bedc47eeeb25272158bcb5
parent c6f2981170272cce2c192087a16dd74dbde25ed2

ASoC: Disable WM8731 line bypass by default

This avoids temporarily enabling the ouput stages during startup which
can cause audible effets in the output stages.

Reported-by: Fredrik Redgård <rik@svep.se>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/wm8731.c

diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c
index 4cac319..9e7ebcc 100644
--- a/sound/soc/codecs/wm8731.c
+++ b/sound/soc/codecs/wm8731.c
@@ -594,6 +594,10 @@
 	reg = wm8731_read_reg_cache(codec, WM8731_RINVOL);
 	wm8731_write(codec, WM8731_RINVOL, reg & ~0x0100);
 
+	/* Disable bypass path by default */
+	reg = wm8731_read_reg_cache(codec, WM8731_APANA);
+	wm8731_write(codec, WM8731_APANA, reg & ~0x4);
+
 	wm8731_codec = codec;
 
 	ret = snd_soc_register_codec(codec);