linux-kernel - [PATCH 05/13] ASoC: mediatek: mt6359-accdet: Implement EINT IRQ polarity configuration

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Message-Id: <20250214-mt6359-accdet-dts-v1-5-677a151b9b4c@collabora.com>
Date: Fri, 14 Feb 2025 14:18:36 -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>, 
 Sen Chu <sen.chu@...iatek.com>, Sean Wang <sean.wang@...iatek.com>, 
 Macpaul Lin <macpaul.lin@...iatek.com>, Lee Jones <lee@...nel.org>, 
 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, 
 linux-pm@...r.kernel.org, 
 Nícolas F. R. A. Prado <nfraprado@...labora.com>, 
 Andrew Perepech <andrew.perepech@...iatek.com>
Subject: [PATCH 05/13] ASoC: mediatek: mt6359-accdet: Implement EINT IRQ
 polarity configuration

From: Andrew Perepech <andrew.perepech@...iatek.com>

The driver currently reads the EINT IRQ polarity from the
"mediatek,eint-level-pol" property but never actually configures the
hardware accordingly.

Implement the IRQ polarity configuration in hardware.

Signed-off-by: Andrew Perepech <andrew.perepech@...iatek.com>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>
---
 sound/soc/codecs/mt6359-accdet.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/sound/soc/codecs/mt6359-accdet.c b/sound/soc/codecs/mt6359-accdet.c
index 6f07db879c6a56ce4843954f51bb9602373e4aa5..eee676d1faef2076bc837a12a2ee3615216752b7 100644
--- a/sound/soc/codecs/mt6359-accdet.c
+++ b/sound/soc/codecs/mt6359-accdet.c
@@ -733,6 +733,22 @@ static void config_digital_init_by_mode(struct mt6359_accdet *priv)
 					   BIT(ACCDET_EINT1_INVERTER_SW_EN_SFT));
 		}
 	}
+
+	if (priv->data->eint_pol == IRQ_TYPE_LEVEL_LOW) {
+		/* EINT polarity normal */
+		regmap_update_bits(priv->regmap,
+				ACCDET_EINT_IN_INVERSE_ADDR,
+				ACCDET_EINT_IN_INVERSE_MASK_SFT,
+				0);
+	} else if (priv->data->eint_pol == IRQ_TYPE_LEVEL_HIGH) {
+		/* EINT polarity inverse */
+		regmap_update_bits(priv->regmap,
+				ACCDET_EINT_IN_INVERSE_ADDR,
+				ACCDET_EINT_IN_INVERSE_MASK_SFT,
+				BIT(ACCDET_EINT_IN_INVERSE_SFT));
+	} else {
+		dev_warn(priv->dev, "Unacceptable EINT level type, using default\n");
+	}
 }

 static void config_eint_init_by_mode(struct mt6359_accdet *priv)

-- 
2.48.1