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| author | Peter Ujfalusi | 2009-05-25 10:12:12 +0200 |
|---|---|---|
| committer | Mark Brown | 2009-05-25 12:54:14 +0200 |
| commit | f3b5d3002d5b43d277dedc1e044d02f2a40a43c5 (patch) | |
| tree | 6f71f26af0f468a14940023135f5115078ca3aa1 /sound/soc/codecs/twl4030.c | |
| parent | ASoC: TWL4030: Handsfree pop removal redesign (diff) | |
| download | kernel-qcow2-linux-f3b5d3002d5b43d277dedc1e044d02f2a40a43c5.tar.gz kernel-qcow2-linux-f3b5d3002d5b43d277dedc1e044d02f2a40a43c5.tar.xz kernel-qcow2-linux-f3b5d3002d5b43d277dedc1e044d02f2a40a43c5.zip | |
ASoC: TWL4030: Add shadow register
Shadow, non HW register for dealing with the HandsfreeL/R
muting.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/codecs/twl4030.c')
| -rw-r--r-- | sound/soc/codecs/twl4030.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index 17ddcb265134..989446dabcda 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -115,6 +115,7 @@ static const u8 twl4030_reg[TWL4030_CACHEREGNUM] = { 0x00, /* REG_VIBRA_PWM_SET (0x47) */ 0x00, /* REG_ANAMIC_GAIN (0x48) */ 0x00, /* REG_MISC_SET_2 (0x49) */ + 0x00, /* REG_SW_SHADOW (0x4A) - Shadow, non HW register */ }; /* codec private data */ @@ -172,7 +173,11 @@ static int twl4030_write(struct snd_soc_codec *codec, unsigned int reg, unsigned int value) { twl4030_write_reg_cache(codec, reg, value); - return twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, value, reg); + if (likely(reg < TWL4030_REG_SW_SHADOW)) + return twl4030_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE, value, + reg); + else + return 0; } static void twl4030_codec_enable(struct snd_soc_codec *codec, int enable) |