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Date: Thu, 15 Sep 2011 15:39:29 +0300 From: Peter Ujfalusi <peter.ujfalusi@...com> To: Samuel Ortiz <samuel.ortiz@...el.com>, Dmitry Torokhov <dtor@...l.ru>, Mark Brown <broonie@...nsource.wolfsonmicro.com>, Liam Girdwood <lrg@...com> Cc: alsa-devel@...a-project.org, linux-kernel@...r.kernel.org, Misael Lopez Cruz <misael.lopez@...com> Subject: [PATCH 07/17] ASoC: twl6040: Lower the initial gains The default gains on outputs/inputs are set to 0dB. To be able to handle pop noise better, we need to lower the gains on controls, where it is possible. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com> --- sound/soc/codecs/twl6040.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-) diff --git a/sound/soc/codecs/twl6040.c b/sound/soc/codecs/twl6040.c index 987d9c9..1f6068b 100644 --- a/sound/soc/codecs/twl6040.c +++ b/sound/soc/codecs/twl6040.c @@ -269,6 +269,13 @@ static void twl6040_init_chip(struct snd_soc_codec *codec) /* No imput selected for microphone amplifiers */ twl6040_write_reg_cache(codec, TWL6040_REG_MICLCTL, 0x18); twl6040_write_reg_cache(codec, TWL6040_REG_MICRCTL, 0x18); + + /* Lower the gains */ + twl6040_write_reg_cache(codec, TWL6040_REG_HSGAIN, 0xff); + twl6040_write_reg_cache(codec, TWL6040_REG_EARCTL, 0x1e); + twl6040_write_reg_cache(codec, TWL6040_REG_HFLGAIN, 0x1d); + twl6040_write_reg_cache(codec, TWL6040_REG_HFRGAIN, 0x1d); + twl6040_write_reg_cache(codec, TWL6040_REG_LINEGAIN, 0); } static void twl6040_restore_regs(struct snd_soc_codec *codec) -- 1.7.6.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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