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| author | Lars-Peter Clausen <lars@metafoo.de> | 2014-11-06 15:59:24 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-11-06 16:05:10 +0000 |
| commit | 5ad72152b695ba5027f9c6ec9a48a8e1a70f25dc (patch) | |
| tree | c78d81b08cf33627e7df6ea9488fbf0412eef0e2 /sound/soc/codecs/ssm4567.c | |
| parent | ead99f89b7cd2b5cfe99601380a6f6f0a1ce7e53 (diff) | |
| download | linux-5ad72152b695ba5027f9c6ec9a48a8e1a70f25dc.tar.bz2 | |
ASoC: ssm4567: Add support for disabling the boost stage
This patch adds a switch to enable/disable boost stage of the output
amplifier. Applications that know that they do not need the output
amplifier boost stage can disable it to conserve a bit of power.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/ssm4567.c')
| -rw-r--r-- | sound/soc/codecs/ssm4567.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sound/soc/codecs/ssm4567.c b/sound/soc/codecs/ssm4567.c index 217667926a77..a984485108cd 100644 --- a/sound/soc/codecs/ssm4567.c +++ b/sound/soc/codecs/ssm4567.c @@ -165,13 +165,20 @@ static const struct snd_kcontrol_new ssm4567_snd_controls[] = { 5, 1, 0), }; +static const struct snd_kcontrol_new ssm4567_amplifier_boost_control = + SOC_DAPM_SINGLE("Switch", SSM4567_REG_POWER_CTRL, 1, 1, 1); + static const struct snd_soc_dapm_widget ssm4567_dapm_widgets[] = { SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM4567_REG_POWER_CTRL, 2, 1), + SND_SOC_DAPM_SWITCH("Amplifier Boost", SSM4567_REG_POWER_CTRL, 3, 1, + &ssm4567_amplifier_boost_control), SND_SOC_DAPM_OUTPUT("OUT"), }; static const struct snd_soc_dapm_route ssm4567_routes[] = { + { "OUT", NULL, "Amplifier Boost" }, + { "Amplifier Boost", "Switch", "DAC" }, { "OUT", NULL, "DAC" }, }; |