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path: root/packages/kexecboot/linux-kexecboot-2.6.23/wm9712-reset-loop-r2.patch
blob: 78e81ea83ac55fa44cab38d21e1224792bf7c7ca (plain)
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 sound/soc/codecs/wm9712.c |   28 ++++++++++++++++++----------
 1 file changed, 18 insertions(+), 10 deletions(-)

Index: git/sound/soc/codecs/wm9712.c
===================================================================
--- git.orig/sound/soc/codecs/wm9712.c	2006-11-07 22:10:01.000000000 +0000
+++ git/sound/soc/codecs/wm9712.c	2006-11-07 22:11:50.000000000 +0000
@@ -618,18 +618,26 @@ static int wm9712_dapm_event(struct snd_
 
 static int wm9712_reset(struct snd_soc_codec *codec, int try_warm)
 {
-	if (try_warm && soc_ac97_ops.warm_reset) {
-		soc_ac97_ops.warm_reset(codec->ac97);
-		if (!(ac97_read(codec, 0) & 0x8000))
-			return 1;
-	}
+	int retry = 3;
 
-	soc_ac97_ops.reset(codec->ac97);
-	if (ac97_read(codec, 0) & 0x8000)
-		goto err;
-	return 0;
+	while (retry--)
+	{
+		if(try_warm && soc_ac97_ops.warm_reset) {
+			soc_ac97_ops.warm_reset(codec->ac97);
+			if(ac97_read(codec, 0) & 0x8000)
+				continue;
+			else
+				return 1;
+		}
+
+		soc_ac97_ops.reset(codec->ac97);
+		if(ac97_read(codec, 0) & 0x8000)
+			continue;
+		else
+			return 0;
+
+	}
 
-err:
 	printk(KERN_ERR "WM9712 AC97 reset failed\n");
 	return -EIO;
 }