diff options
| author | Peter Ujfalusi <peter.ujfalusi@nokia.com> | 2008-11-24 14:49:35 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2008-11-24 17:05:39 +0300 |
| commit | c10b82cf085c38f2568609ffb10a6d725130f389 (patch) | |
| tree | f7736f2799e855a1f0516d950b9c50101e3d1973 /sound/soc/codecs/twl4030.c | |
| parent | f8d05bdbb07458e5f2c6a8281bde08056836fea6 (diff) | |
| download | linux-c10b82cf085c38f2568609ffb10a6d725130f389.tar.xz | |
ASoC: TWL4030: Change the Master volume control to TLV
TWL4030 FGAIN volume control has a range:
-62 to 0 dB in 1 dB steps, 0 in the FGAIN means mute.
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 | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c index 49c7da39497e..498c42f7c6e0 100644 --- a/sound/soc/codecs/twl4030.c +++ b/sound/soc/codecs/twl4030.c @@ -33,6 +33,7 @@ #include <sound/soc.h> #include <sound/soc-dapm.h> #include <sound/initval.h> +#include <sound/tlv.h> #include "twl4030.h" @@ -189,10 +190,16 @@ static void twl4030_init_chip(struct snd_soc_codec *codec) } +/* + * FGAIN volume control: + * from -62 to 0 dB in 1 dB steps (mute instead of -63 dB) + */ +static DECLARE_TLV_DB_SCALE(master_tlv, -6300, 100, 1); + static const struct snd_kcontrol_new twl4030_snd_controls[] = { - SOC_DOUBLE_R("Master Playback Volume", + SOC_DOUBLE_R_TLV("Master Playback Volume", TWL4030_REG_ARXL2PGA, TWL4030_REG_ARXR2PGA, - 0, 0x3f, 0), + 0, 0x3f, 0, master_tlv), SOC_DOUBLE_R("Capture Volume", TWL4030_REG_ATXL1PGA, TWL4030_REG_ATXR1PGA, 0, 0x1f, 0), |