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ASoC: AC97 doesn't use regmap by default

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Since commit 38cbf9598f
("ASoC: core: Try to use regmap if the driver doesn't set up any I/O")
any ASoC codec which doesn't set codec::control_data is assumed
to use regmap.  That doesn't work with AC97 so this workaround
sets the codec::control_data member to a random value to restore
proper behaviour.

Tested with WM9712.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Manuel Lauss 2012-07-31 14:42:27 +02:00 committed by Mark Brown
parent eef69ac7c9
commit d0e3cce914
4 changed files with 4 additions and 0 deletions
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1
sound/soc/codecs/ad1980.c
View file

@ -186,6 +186,7 @@ static int ad1980_soc_probe(struct snd_soc_codec *codec)
printk(KERN_INFO "AD1980 SoC Audio Codec\n");
codec->control_data = codec; /* we don't use regmap! */
ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
if (ret < 0) {
printk(KERN_ERR "ad1980: failed to register AC97 codec\n");

1
sound/soc/codecs/stac9766.c
View file

@ -340,6 +340,7 @@ static int stac9766_codec_probe(struct snd_soc_codec *codec)
printk(KERN_INFO "STAC9766 SoC Audio Codec %s\n", STAC9766_VERSION);
codec->control_data = codec; /* we don't use regmap! */
ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
if (ret < 0)
goto codec_err;

1
sound/soc/codecs/wm9712.c
View file

@ -619,6 +619,7 @@ static int wm9712_soc_probe(struct snd_soc_codec *codec)
{
int ret = 0;
codec->control_data = codec; /* we don't use regmap! */
ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
if (ret < 0) {
printk(KERN_ERR "wm9712: failed to register AC97 codec\n");

1
sound/soc/codecs/wm9713.c
View file

@ -1196,6 +1196,7 @@ static int wm9713_soc_probe(struct snd_soc_codec *codec)
if (wm9713 == NULL)
return -ENOMEM;
snd_soc_codec_set_drvdata(codec, wm9713);
codec->control_data = wm9713; /* we don't use regmap! */
ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
if (ret < 0)