From 979bb1f4b8b058e9fb23d6166807e30b507a1a6d Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Wed, 26 May 2010 11:38:16 +0300 Subject: ASoC: TWL4030: Make offset cancellation path configurable Add means for machine drivers to select the path for offset cancellation. Reset the reg cache value to the chip reset value at the same time. Machine drivers can specify which path need to be used for offset cancellation via the twl4030_setup.offset_cncl_path. For paths use the defines from include/linux/mfd/twl4030-codec.h: TWL4030_OFFSET_CNCL_SEL_* Signed-off-by: Peter Ujfalusi Acked-by: Mark Brown Signed-off-by: Liam Girdwood --- sound/soc/codecs/twl4030.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'sound/soc/codecs/twl4030.c') diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index 1e0aba5b2c5..a6cbaf3c51f 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -46,7 +46,7 @@ static const u8 twl4030_reg[TWL4030_CACHEREGNUM] = { 0xc3, /* REG_OPTION (0x2) */ 0x00, /* REG_UNKNOWN (0x3) */ 0x00, /* REG_MICBIAS_CTL (0x4) */ - 0x20, /* REG_ANAMICL (0x5) */ + 0x00, /* REG_ANAMICL (0x5) */ 0x00, /* REG_ANAMICR (0x6) */ 0x00, /* REG_AVADC_CTL (0x7) */ 0x00, /* REG_ADCMICSEL (0x8) */ @@ -281,6 +281,8 @@ static void twl4030_apll_enable(struct snd_soc_codec *codec, int enable) static void twl4030_power_up(struct snd_soc_codec *codec) { + struct snd_soc_device *socdev = codec->socdev; + struct twl4030_setup_data *setup = socdev->codec_data; struct twl4030_priv *twl4030 = snd_soc_codec_get_drvdata(codec); u8 anamicl, regmisc1, byte; int i = 0; @@ -293,6 +295,8 @@ static void twl4030_power_up(struct snd_soc_codec *codec) /* initiate offset cancellation */ anamicl = twl4030_read_reg_cache(codec, TWL4030_REG_ANAMICL); + anamicl &= ~TWL4030_OFFSET_CNCL_SEL; + anamicl |= setup->offset_cncl_path; twl4030_write(codec, TWL4030_REG_ANAMICL, anamicl | TWL4030_CNCL_OFFSET_START); -- cgit v1.2.3-18-g5258