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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: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/20200320205504.30466-3-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
alistair/sensors
Dmitry Osipenko 2020-03-20 23:55:04 +03:00 committed by Mark Brown
parent d1eb6d1161
commit a30b59bffc
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GPG Key ID: 24D68B725D5487D0
1 changed files with 18 additions and 0 deletions
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18
sound/soc/tegra/tegra_wm8903.c
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@ -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)