diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2011-06-06 13:38:40 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-06-06 21:54:43 +0100 |
| commit | f97d0c6d5f947a96a6d3957eff3da6d9ca246e54 (patch) | |
| tree | bff19452670e6551b90bb9be54a81a3f7dad9dfa /sound/soc/codecs/ad1836.c | |
| parent | 583eadab21779c4301f01a11bf3d0d49b643aa80 (diff) | |
ASoC: AD1836: Add input gain control for ADC2
The AD1836 has a PGA for its second ADC. This patch adds a control for
adjusting the the gain of the PGA.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc/codecs/ad1836.c')
| -rw-r--r-- | sound/soc/codecs/ad1836.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sound/soc/codecs/ad1836.c b/sound/soc/codecs/ad1836.c index 78d38cb62c0..4390d4630de 100644 --- a/sound/soc/codecs/ad1836.c +++ b/sound/soc/codecs/ad1836.c @@ -124,6 +124,13 @@ static const struct snd_soc_dapm_route ad183x_dapm_routes[] = { { "ADC", NULL, "ADC_PWR" }, }; +static const DECLARE_TLV_DB_SCALE(ad1836_in_tlv, 0, 300, 0); + +static const struct snd_kcontrol_new ad1836_controls[] = { + SOC_DOUBLE_TLV("ADC2 Capture Volume", AD183X_ADC_CTRL1, 3, 0, 4, 0, + ad1836_in_tlv), +}; + /* * DAI ops entries */ @@ -280,6 +287,10 @@ static int ad1836_probe(struct snd_soc_codec *codec) if (ad1836->type == AD1836) { /* left/right diff:PGA/MUX */ snd_soc_write(codec, AD1836_ADC_CTRL3, 0x3A); + ret = snd_soc_add_controls(codec, ad1836_controls, + ARRAY_SIZE(ad1836_controls)); + if (ret) + return ret; } else { snd_soc_write(codec, AD1836_ADC_CTRL3, 0x00); } |