linux-kernel - [PATCH 2/4] ARM: dts: qcom: msm8974pro-htc-m8: add NFC support

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Message-Id: <20251007-m8-dts-additions-v1-2-53d7ab3594e7@me.ssier.org>
Date: Tue, 07 Oct 2025 01:55:43 -0400
From: Alexandre Messier via B4 Relay <devnull+alex.me.ssier.org@...nel.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: Luca Weiss <luca@...aweiss.eu>, linux-arm-kernel@...ts.infradead.org, 
 linux-arm-msm@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht, 
 phone-devel@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Alexandre Messier <alex@...ssier.org>
Subject: [PATCH 2/4] ARM: dts: qcom: msm8974pro-htc-m8: add NFC support

From: Alexandre Messier <alex@...ssier.org>

Add the NFC chip used in the HTC One M8 to its device tree.

Signed-off-by: Alexandre Messier <alex@...ssier.org>
---
 arch/arm/boot/dts/qcom/qcom-msm8974pro-htc-m8.dts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/boot/dts/qcom/qcom-msm8974pro-htc-m8.dts b/arch/arm/boot/dts/qcom/qcom-msm8974pro-htc-m8.dts
index 9c3859069aba..4026d6fedfbe 100644
--- a/arch/arm/boot/dts/qcom/qcom-msm8974pro-htc-m8.dts
+++ b/arch/arm/boot/dts/qcom/qcom-msm8974pro-htc-m8.dts
@@ -65,6 +65,22 @@ vreg_vph_pwr: vreg-vph-pwr {
 	};
 };
 
+&blsp1_i2c3 {
+	clock-frequency = <384000>;
+
+	status = "okay";
+
+	nfc@28 {
+		compatible = "nxp,pn544-i2c";
+		reg = <0x28>;
+
+		interrupts-extended = <&tlmm 144 IRQ_TYPE_LEVEL_HIGH>;
+
+		enable-gpios = <&tlmm 2 GPIO_ACTIVE_LOW>;
+		firmware-gpios = <&tlmm 3 GPIO_ACTIVE_HIGH>;
+	};
+};
+
 &pm8941_lpg {
 	qcom,power-source = <1>;
 

-- 
2.51.0