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ASoC: twl6040 - add method to query HS DC offset step size in mV 

Provide a method for mach drivers to query the HS DC offset step size in mV.

Signed-off-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Liam Girdwood 2012-01-09 12:10:16 +00:00 committed by Mark Brown
parent 9b85fc9063
commit 08656910bb
2 changed files with 14 additions and 0 deletions
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13
sound/soc/codecs/twl6040.c
View File

@ -1052,6 +1052,19 @@ int twl6040_get_trim_value(struct snd_soc_codec *codec, enum twl6040_trim trim)
}
EXPORT_SYMBOL_GPL(twl6040_get_trim_value);
int twl6040_get_hs_step_size(struct snd_soc_codec *codec)
{
struct twl6040 *twl6040 = codec->control_data;
if (twl6040_get_revid(twl6040) < TWL6040_REV_ES1_2)
/* For ES under ES_1.3 HS step is 2 mV */
return 2;
else
/* For ES_1.3 HS step is 1 mV */
return 1;
}
EXPORT_SYMBOL_GPL(twl6040_get_hs_step_size);
static const struct snd_kcontrol_new twl6040_snd_controls[] = {
/* Capture gains */
SOC_DOUBLE_TLV("Capture Preamplifier Volume",

1
sound/soc/codecs/twl6040.h
View File

@ -39,5 +39,6 @@ void twl6040_hs_jack_detect(struct snd_soc_codec *codec,
struct snd_soc_jack *jack, int report);
int twl6040_get_clk_id(struct snd_soc_codec *codec);
int twl6040_get_trim_value(struct snd_soc_codec *codec, enum twl6040_trim trim);
int twl6040_get_hs_step_size(struct snd_soc_codec *codec);
#endif /* End of __TWL6040_H__ */