From 0c17b393942e4363061b61ca58f4d35a01b41ab3 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
Date: Wed, 11 Aug 2010 18:03:54 +0100
Subject: [PATCH] ASoC: Optimise DSP performance for WM8994
Change the chip defaults to optimise performance of some of the DSP
functionality.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
---
sound/soc/codecs/wm8994.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c
index a87046a96f2ab..2dc9daa95bed7 100644
--- a/sound/soc/codecs/wm8994.c
+++ b/sound/soc/codecs/wm8994.c
@@ -3082,10 +3082,11 @@ static int wm8994_set_bias_level(struct snd_soc_codec *codec,
case SND_SOC_BIAS_STANDBY:
if (codec->bias_level == SND_SOC_BIAS_OFF) {
- /* Tweak DC servo configuration for improved
- * performance. */
+ /* Tweak DC servo and DSP configuration for
+ * improved performance. */
snd_soc_write(codec, 0x102, 0x3);
snd_soc_write(codec, 0x56, 0x3);
+ snd_soc_write(codec, 0x817, 0);
snd_soc_write(codec, 0x102, 0);
/* Discharge LINEOUT1 & 2 */
--
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