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Commit 5ad72152 authored by Lars-Peter Clausen's avatar Lars-Peter Clausen Committed by Mark Brown
Browse files

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: default avatarLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent ead99f89

sound/soc/codecs/ssm4567.c

+7 −0
Original line number Diff line number Diff line
@@ -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" },

};