[alsa-devel] [PATCH 3/7] ASoC: Improve WM9713 voice DAC shutdown procedure

Mark Brown broonie at opensource.wolfsonmicro.com
Wed Feb 25 11:48:18 CET 2009


Signed-off-by: Mark Brown <broonie at opensource.wolfsonmicro.com>
---
 sound/soc/codecs/wm9713.c |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/wm9713.c b/sound/soc/codecs/wm9713.c
index 54db9c5..a93aea5 100644
--- a/sound/soc/codecs/wm9713.c
+++ b/sound/soc/codecs/wm9713.c
@@ -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);
 }
 
-- 
1.6.1.3



More information about the Alsa-devel mailing list