[alsa-devel] [PATCH] ASoC: Writing register default value for the reset register

Axel Lin axel.lin at gmail.com
Tue Oct 11 11:55:00 CEST 2011

The WM8983 can be reset by performing a write of any value to
the software reset register.
To avoid writing to the software reset register while resume,
we should write the same value in wm8983_reg_defs to software
reset register in wm8983_probe().
The write to the reset register is suppressed by the cache
restore code when it skips writes of default registers.

Signed-off-by: Axel Lin <axel.lin at gmail.com>
 sound/soc/codecs/wm8983.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/sound/soc/codecs/wm8983.c b/sound/soc/codecs/wm8983.c
index 17f04ec..93ee284 100644
--- a/sound/soc/codecs/wm8983.c
+++ b/sound/soc/codecs/wm8983.c
@@ -1007,7 +1007,7 @@ static int wm8983_probe(struct snd_soc_codec *codec)
 		return ret;
-	ret = snd_soc_write(codec, WM8983_SOFTWARE_RESET, 0x8983);
+	ret = snd_soc_write(codec, WM8983_SOFTWARE_RESET, 0);
 	if (ret < 0) {
 		dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
 		return ret;

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