[PATCH AUTOSEL 4.19 003/172] ASoC: tegra: tegra_wm8903: Support nvidia, headset property

Sasha Levin
2020-06-18T02:07:20Z

From: Dmitry Osipenko <digetx@gmail.com>

[ Upstream commit 3ef9d5073b552d56bd6daf2af1e89b7e8d4df183 ]

The microphone-jack state needs to be masked in a case of a 4-pin jack
when microphone and ground pins are shorted. Presence of nvidia,headset
tells that WM8903 CODEC driver should mask microphone's status if short
circuit is detected, i.e headphones are inserted.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20200330204011.18465-3-digetx@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/tegra/tegra_wm8903.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sound/soc/tegra/tegra_wm8903.c b/sound/soc/tegra/tegra_wm8903.c
index 69bc9461974b..301850df368d 100644
--- a/sound/soc/tegra/tegra_wm8903.c
+++ b/sound/soc/tegra/tegra_wm8903.c
@@ -173,6 +173,7 @@ static int tegra_wm8903_init(struct snd_soc_pcm_runtime *rtd)
struct snd_soc_component *component = codec_dai->component;
struct snd_soc_card *card = rtd->card;
struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
+ int shrt = 0;

if (gpio_is_valid(machine->gpio_hp_det)) {
tegra_wm8903_hp_jack_gpio.gpio = machine->gpio_hp_det;
@@ -185,12 +186,15 @@ static int tegra_wm8903_init(struct snd_soc_pcm_runtime *rtd)
&tegra_wm8903_hp_jack_gpio);
}

+ if (of_property_read_bool(card->dev->of_node, "nvidia,headset"))
+ shrt = SND_JACK_MICROPHONE;
+
snd_soc_card_jack_new(rtd->card, "Mic Jack", SND_JACK_MICROPHONE,
&tegra_wm8903_mic_jack,
tegra_wm8903_mic_jack_pins,
ARRAY_SIZE(tegra_wm8903_mic_jack_pins));
wm8903_mic_detect(component, &tegra_wm8903_mic_jack, SND_JACK_MICROPHONE,
- 0);
+ shrt);

snd_soc_dapm_force_enable_pin(&card->dapm, "MICBIAS");

--
2.25.1