ASoC: Fix disable of SPDIF on STAC9766 codec
Jon Smirl [Wed, 16 Dec 2009 01:53:44 +0000 (20:53 -0500)]
Change code so that switching to playing music through the analog output
disables SPDIF out instead of disabling it when stream ends.

Signed-off-by: Jon Smirl <jonsmirl@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/stac9766.c

index bbc72c2..81b8c9d 100644 (file)
@@ -191,6 +191,7 @@ static int ac97_analog_prepare(struct snd_pcm_substream *substream,
        vra = stac9766_ac97_read(codec, AC97_EXTENDED_STATUS);
 
        vra |= 0x1; /* enable variable rate audio */
+       vra &= ~0x4; /* disable SPDIF output */
 
        stac9766_ac97_write(codec, AC97_EXTENDED_STATUS, vra);
 
@@ -221,22 +222,6 @@ static int ac97_digital_prepare(struct snd_pcm_substream *substream,
        return stac9766_ac97_write(codec, reg, runtime->rate);
 }
 
-static int ac97_digital_trigger(struct snd_pcm_substream *substream,
-                               int cmd, struct snd_soc_dai *dai)
-{
-       struct snd_soc_codec *codec = dai->codec;
-       unsigned short vra;
-
-       switch (cmd) {
-       case SNDRV_PCM_TRIGGER_STOP:
-               vra = stac9766_ac97_read(codec, AC97_EXTENDED_STATUS);
-               vra &= !0x04;
-               stac9766_ac97_write(codec, AC97_EXTENDED_STATUS, vra);
-               break;
-       }
-       return 0;
-}
-
 static int stac9766_set_bias_level(struct snd_soc_codec *codec,
                                   enum snd_soc_bias_level level)
 {
@@ -315,7 +300,6 @@ static struct snd_soc_dai_ops stac9766_dai_ops_analog = {
 
 static struct snd_soc_dai_ops stac9766_dai_ops_digital = {
        .prepare = ac97_digital_prepare,
-       .trigger = ac97_digital_trigger,
 };
 
 struct snd_soc_dai stac9766_dai[] = {