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ASoC: Improve WM9713 voice DAC shutdown procedure

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Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2009-01-23 14:44:54 +00:00
parent 93e051d277
commit 8056d9bbb5
1 changed files with 4 additions and 3 deletions
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7
sound/soc/codecs/wm9713.c
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@ -940,13 +940,14 @@ static void wm9713_voiceshutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = dai->codec;
u16 status;
u16 status, rate;
/* Gracefully shut down the voice interface. */
status = ac97_read(codec, AC97_EXTENDED_STATUS) | 0x1000;
ac97_write(codec, AC97_HANDSET_RATE, 0x0280);
rate = ac97_read(codec, AC97_HANDSET_RATE) & 0xF0FF;
ac97_write(codec, AC97_HANDSET_RATE, rate | 0x0200);
schedule_timeout_interruptible(msecs_to_jiffies(1));
ac97_write(codec, AC97_HANDSET_RATE, 0x0F80);
ac97_write(codec, AC97_HANDSET_RATE, rate | 0x0F00);
ac97_write(codec, AC97_EXTENDED_MID, status);
}