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Commit 5b85cfdf authored by Sudheer Papothi's avatar Sudheer Papothi
Browse files

ASoC: wcd9330: Enable smartboost from codec 



Enable smartboost for speaker configuration from codec. With this
configuration, the voltage will switch between 5V(boost voltage)
and Vbat(boost bypass mode) based on audio level. This allows for
an additional efficiency gain at lower audio levels when a boosted
voltage is not required.

Change-Id: I86f99cbd459bb62d836d24eb6be1e6c8b494b8eb
Signed-off-by: default avatarSudheer Papothi <spapothi@codeaurora.org>
parent 1d3124ad

sound/soc/codecs/wcd9330.c

+16 −2
Original line number Diff line number Diff line
@@ -3551,7 +3551,21 @@ static int tomtom_lineout_dac_event(struct snd_soc_dapm_widget *w, 
static int tomtom_spk_dac_event(struct snd_soc_dapm_widget *w,

	struct snd_kcontrol *kcontrol, int event)

{

	struct snd_soc_codec *codec = w->codec;



	pr_debug("%s %s %d\n", __func__, w->name, event);



	switch (event) {

	case SND_SOC_DAPM_PRE_PMU:

		snd_soc_update_bits(codec, WCD9XXX_A_CDC_CLK_OTHR_CTL,

							0x80, 0x80);

		break;

	case SND_SOC_DAPM_POST_PMD:

		if ((snd_soc_read(codec, w->reg) & 0x03) == 0)

			snd_soc_update_bits(codec, WCD9XXX_A_CDC_CLK_OTHR_CTL,

							0x80, 0x00);

		break;

	}

	return 0;

}
@@ -5613,10 +5627,10 @@ static const struct snd_soc_dapm_widget tomtom_dapm_widgets[] = { 
	SND_SOC_DAPM_SWITCH("LINEOUT4 DAC GROUND", SND_SOC_NOPM, 0, 0,

				&lineout4_ground_switch),



	SND_SOC_DAPM_DAC_E("SPK DAC", NULL, SND_SOC_NOPM, 0, 0,

	SND_SOC_DAPM_DAC_E("SPK DAC", NULL, TOMTOM_A_CDC_BOOST_TRGR_EN, 0, 0,

			   tomtom_spk_dac_event,

			   SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),

	SND_SOC_DAPM_DAC_E("SPK2 DAC", NULL, SND_SOC_NOPM, 0, 0,

	SND_SOC_DAPM_DAC_E("SPK2 DAC", NULL, TOMTOM_A_CDC_BOOST_TRGR_EN, 1, 0,

			   tomtom_spk_dac_event,

			   SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),