Unverified Commit a30b59bf authored by Dmitry Osipenko's avatar Dmitry Osipenko Committed by Mark Brown
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ASoC: tegra: tegra_wm8903: Support DAPM events for built-in microphone 



The enable-GPIO needs to be toggled on a DAPM event in order to turn
microphone ON/OFF, otherwise microphone won't work.

Signed-off-by: default avatarDmitry Osipenko <digetx@gmail.com>
Acked-by: default avatarStephen Warren <swarren@nvidia.com>
Acked-by: default avatarJon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20200320205504.30466-3-digetx@gmail.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent d1eb6d11

sound/soc/tegra/tegra_wm8903.c

+18 −0
Original line number Diff line number Diff line
@@ -143,14 +143,32 @@ static int tegra_wm8903_event_hp(struct snd_soc_dapm_widget *w, 
	return 0;

}



static int tegra_wm8903_event_int_mic(struct snd_soc_dapm_widget *w,

				      struct snd_kcontrol *k, int event)

{

	struct snd_soc_dapm_context *dapm = w->dapm;

	struct snd_soc_card *card = dapm->card;

	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);



	if (!gpio_is_valid(machine->gpio_int_mic_en))

		return 0;



	gpio_set_value_cansleep(machine->gpio_int_mic_en,

				SND_SOC_DAPM_EVENT_ON(event));



	return 0;

}



static const struct snd_soc_dapm_widget tegra_wm8903_dapm_widgets[] = {

	SND_SOC_DAPM_SPK("Int Spk", tegra_wm8903_event_int_spk),

	SND_SOC_DAPM_HP("Headphone Jack", tegra_wm8903_event_hp),

	SND_SOC_DAPM_MIC("Mic Jack", NULL),

	SND_SOC_DAPM_MIC("Int Mic", tegra_wm8903_event_int_mic),

};



static const struct snd_kcontrol_new tegra_wm8903_controls[] = {

	SOC_DAPM_PIN_SWITCH("Int Spk"),

	SOC_DAPM_PIN_SWITCH("Int Mic"),

};



static int tegra_wm8903_init(struct snd_soc_pcm_runtime *rtd)