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ASoC: Improve WM9713 voice DAC shutdown procedure
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Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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Mark Brown committed Feb 24, 2009
1 parent 93e051d commit 8056d9b
Showing 1 changed file with 4 additions and 3 deletions.
7 changes: 4 additions & 3 deletions sound/soc/codecs/wm9713.c
Original file line number Diff line number Diff line change
Expand Up @@ -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);
}

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