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authorMark Brown <broonie@opensource.wolfsonmicro.com>2012-01-18 19:17:06 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-01-20 13:54:34 +0000
commitfed22007113cb857e917913ce016d9b539dc3a80 (patch)
tree7e5960b2770e0a661ae1abce509a53e0f857294c /sound/soc/codecs/wm8996.h
parent495174a8ffbaa0d15153d855cf206cdc46d51cf4 (diff)
ASoC: Disable register synchronisation for low frequency WM8996 SYSCLK
With a low frequency SYSCLK and a fast I2C clock register synchronisation may occasionally take too long to take effect, causing I/O issues. Disable synchronisation in order to avoid any issues. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@kernel.org
Diffstat (limited to 'sound/soc/codecs/wm8996.h')
-rw-r--r--sound/soc/codecs/wm8996.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8996.h b/sound/soc/codecs/wm8996.h
index 0fde643194ce..de9ac3e44aec 100644
--- a/sound/soc/codecs/wm8996.h
+++ b/sound/soc/codecs/wm8996.h
@@ -1567,6 +1567,10 @@ int wm8996_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack,
/*
* R257 (0x101) - Control Interface (1)
*/
+#define WM8996_REG_SYNC 0x8000 /* REG_SYNC */
+#define WM8996_REG_SYNC_MASK 0x8000 /* REG_SYNC */
+#define WM8996_REG_SYNC_SHIFT 15 /* REG_SYNC */
+#define WM8996_REG_SYNC_WIDTH 1 /* REG_SYNC */
#define WM8996_AUTO_INC 0x0004 /* AUTO_INC */
#define WM8996_AUTO_INC_MASK 0x0004 /* AUTO_INC */
#define WM8996_AUTO_INC_SHIFT 2 /* AUTO_INC */