linux-kernel - [PATCH 2/2] ASoC: amd: acp3x-5682: Expose individual headset jack pins

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Date:   Sat, 24 Sep 2022 18:50:25 +0900
From:   Akihiko Odaki <akihiko.odaki@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        Nícolas F . R . A . Prado 
        <nfraprado@...labora.com>, Akihiko Odaki <akihiko.odaki@...il.com>
Subject: [PATCH 2/2] ASoC: amd: acp3x-5682: Expose individual headset jack pins

The rt5682 codec is able to distinguish between two event types:
headphone insertion/removal and headset microphone insertion/removal.
However, currently, the acp3x-5682 driver exposes a single kcontrol
for the headset jack, so userspace isn't able to differentiate between
the two events.

Add a definition for the headset jack pins, so that a separate jack
kcontrol is created for each one, allowing userspace to track and handle
them individually.

This change is based on commit 194ff8db0378 ("ASoC: mediatek:
mt8192-mt6359: Expose individual headset jack pins").

Signed-off-by: Akihiko Odaki <akihiko.odaki@...il.com>
---
 sound/soc/amd/acp3x-rt5682-max9836.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/sound/soc/amd/acp3x-rt5682-max9836.c b/sound/soc/amd/acp3x-rt5682-max9836.c
index 0bdd9c26dd22..3679931a2285 100644
--- a/sound/soc/amd/acp3x-rt5682-max9836.c
+++ b/sound/soc/amd/acp3x-rt5682-max9836.c
@@ -39,6 +39,17 @@ enum {
 	EC,
 };
 
+static struct snd_soc_jack_pin acp3x_5682_jack_pins[] = {
+	{
+		.pin	= "Headphone Jack",
+		.mask	= SND_JACK_HEADPHONE,
+	},
+	{
+		.pin	= "Headset Mic",
+		.mask	= SND_JACK_MICROPHONE,
+	},
+};
+
 static int acp3x_5682_init(struct snd_soc_pcm_runtime *rtd)
 {
 	int ret;
@@ -86,11 +97,12 @@ static int acp3x_5682_init(struct snd_soc_pcm_runtime *rtd)
 	rt5682_dai_wclk = clk_get(component->dev, "rt5682-dai-wclk");
 	rt5682_dai_bclk = clk_get(component->dev, "rt5682-dai-bclk");
 
-	ret = snd_soc_card_jack_new(card, "Headset Jack",
+	ret = snd_soc_card_jack_new_pins(card, "Headset Jack",
 				SND_JACK_HEADSET |
 				SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 				SND_JACK_BTN_2 | SND_JACK_BTN_3,
-				&pco_jack);
+				&pco_jack, acp3x_5682_jack_pins,
+				ARRAY_SIZE(acp3x_5682_jack_pins));
 	if (ret) {
 		dev_err(card->dev, "HP jack creation failed %d\n", ret);
 		return ret;
-- 
2.37.3