linux-kernel - [PATCH v2 3/3] ASoC: mediatek: mt8188-mt6359: Add accdet headset jack detect support

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Message-Id: <20250304-mt8188-accdet-v2-3-27f496c4aede@collabora.com>
Date: Tue, 04 Mar 2025 18:35:38 -0300
From: Nícolas F. R. A. Prado <nfraprado@...labora.com>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Matthias Brugger <matthias.bgg@...il.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
 Trevor Wu <trevor.wu@...iatek.com>, Jaroslav Kysela <perex@...ex.cz>, 
 Takashi Iwai <tiwai@...e.com>
Cc: kernel@...labora.com, linux-sound@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org, 
 Nícolas F. R. A. Prado <nfraprado@...labora.com>, 
 Zoran Zhan <zoran.zhan@...iatek.com>
Subject: [PATCH v2 3/3] ASoC: mediatek: mt8188-mt6359: Add accdet headset
 jack detect support

Enable headset jack detection for MT8188 platforms that use the MT6359
ACCDET block for it, indicated by the mediatek,accdet property in DT.
For those platforms, register a jack and initialize the ACCDET block to
report jack events through it.

Co-developed-by: Zoran Zhan <zoran.zhan@...iatek.com>
Signed-off-by: Zoran Zhan <zoran.zhan@...iatek.com>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>
---
 sound/soc/mediatek/Kconfig                |  1 +
 sound/soc/mediatek/mt8188/mt8188-mt6359.c | 43 +++++++++++++++++++++++++++++++
 2 files changed, 44 insertions(+)

diff --git a/sound/soc/mediatek/Kconfig b/sound/soc/mediatek/Kconfig
index 3033e2d3fe16840631a465dd967da77f7a6ff43c..64155ea7965a1cc50593fef442ce90761836f328 100644
--- a/sound/soc/mediatek/Kconfig
+++ b/sound/soc/mediatek/Kconfig
@@ -237,6 +237,7 @@ config SND_SOC_MT8188_MT6359
 	select SND_SOC_NAU8825
 	select SND_SOC_RT5682S
 	select SND_SOC_ES8326
+	select SND_SOC_MT6359_ACCDET
 	help
 	  This adds support for ASoC machine driver for MediaTek MT8188
 	  boards with the MT6359 and other I2S audio codecs.
diff --git a/sound/soc/mediatek/mt8188/mt8188-mt6359.c b/sound/soc/mediatek/mt8188/mt8188-mt6359.c
index 420b1427b71dc1424a52f7ab6140c14659036733..20dc9470ba76b2a750e79a5ae3dafabd7c597f40 100644
--- a/sound/soc/mediatek/mt8188/mt8188-mt6359.c
+++ b/sound/soc/mediatek/mt8188/mt8188-mt6359.c
@@ -17,6 +17,7 @@
 #include "mt8188-afe-common.h"
 #include "../../codecs/nau8825.h"
 #include "../../codecs/mt6359.h"
+#include "../../codecs/mt6359-accdet.h"
 #include "../../codecs/rt5682.h"
 #include "../common/mtk-afe-platform-driver.h"
 #include "../common/mtk-soundcard-driver.h"
@@ -271,6 +272,17 @@ static struct snd_soc_jack_pin nau8825_jack_pins[] = {
 	},
 };
 
+static struct snd_soc_jack_pin mt8188_headset_jack_pins[] = {
+	{
+		.pin    = "Headphone",
+		.mask   = SND_JACK_HEADPHONE,
+	},
+	{
+		.pin    = "Headset Mic",
+		.mask   = SND_JACK_MICROPHONE,
+	},
+};
+
 static const struct snd_kcontrol_new mt8188_dumb_spk_controls[] = {
 	SOC_DAPM_PIN_SWITCH("Ext Spk"),
 };
@@ -506,6 +518,35 @@ static int mt8188_mt6359_mtkaif_calibration(struct snd_soc_pcm_runtime *rtd)
 	return 0;
 }
 
+static int mt8188_mt6359_accdet_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct mtk_soc_card_data *soc_card_data = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_jack *jack = &soc_card_data->card_data->jacks[MT8188_JACK_HEADSET];
+	int ret;
+
+	if (!soc_card_data->accdet)
+		return 0;
+
+	ret = snd_soc_card_jack_new_pins(rtd->card, "Headset Jack",
+				   SND_JACK_HEADSET | SND_JACK_BTN_0 |
+				   SND_JACK_BTN_1 | SND_JACK_BTN_2 |
+				   SND_JACK_BTN_3,
+				   jack, mt8188_headset_jack_pins,
+				   ARRAY_SIZE(mt8188_headset_jack_pins));
+	if (ret) {
+		dev_err(rtd->dev, "Headset Jack create failed: %d\n", ret);
+		return ret;
+	}
+
+	ret = mt6359_accdet_enable_jack_detect(soc_card_data->accdet, jack);
+	if (ret) {
+		dev_err(rtd->dev, "Headset Jack enable failed: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
 static int mt8188_mt6359_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_component *cmpnt_codec =
@@ -518,6 +559,8 @@ static int mt8188_mt6359_init(struct snd_soc_pcm_runtime *rtd)
 	/* mtkaif calibration */
 	mt8188_mt6359_mtkaif_calibration(rtd);
 
+	mt8188_mt6359_accdet_init(rtd);
+
 	return 0;
 }
 

-- 
2.48.1