dect/linux-2.6
Archived
14
0
Fork 0
Code Releases Activity

ASoC: wm8753: Skip noop reconfiguration of DAI mode

Browse source 
This patch makes it possible to set DAI mode to its currently applied
value even if codec is active. This is necessary to allow

aplay -t raw -r 44100 -f S16_LE -c 2 < /dev/urandom &
alsactl store -f backup.state
alsactl restore -f backup.state

to work without returning errors. This patch is based on a patch sent
by Klaus Kurzmann <mok@fluxnetz.de>.

Signed-off-by: Timo Juhani Lindfors <timo.lindfors@iki.fi>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Timo Juhani Lindfors 2011-11-17 02:52:50 +02:00 committed by Mark Brown
parent 0f768a7235
commit 2391a0e067
1 changed files with 3 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
sound/soc/codecs/wm8753.c
View file

@ -190,6 +190,9 @@ static int wm8753_set_dai(struct snd_kcontrol *kcontrol,
struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
u16 ioctl;
if (wm8753->dai_func == ucontrol->value.integer.value[0])
return 0;
if (codec->active)
return -EBUSY;