[PATCH v3 2/5] arm64: dts: qcom: sdm845-oneplus: Enable NFC

David Heidelberg via B4 Relay <[email protected]> Fri, 03 Apr 2026 15:58:47 +0200
Newsgroups dev.linux.lists.oe-linux-nfc,org.kernel.feeds.b4-sent,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel,org.kernel.vger.netdev,org.kernel.vger.phone-devel
Message-ID <[email protected]>
From: David Heidelberg <[email protected]>

Enable NFC controller NXP PN553, which is part of the package NXP NQ330
(NFC + eSE).

Based on work of biemster <[email protected]>.

Signed-off-by: David Heidelberg <[email protected]>
---
 .../arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi | 57 ++++++++++++++++++++++
 1 file changed, 57 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
index 6b7378cf4d493..f5a5f1fbc1fb6 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
@@ -464,6 +464,26 @@ &gpu_zap_shader {
 	firmware-name = "qcom/sdm845/OnePlus/enchilada/a630_zap.mbn";
 };
 
+&i2c3 {
+	clock-frequency = <400000>;
+
+	status = "okay";
+
+	nfc@28 {
+		compatible = "nxp,pn553", "nxp,nxp-nci-i2c";
+		reg = <0x28>;
+
+		interrupts-extended = <&tlmm 63 IRQ_TYPE_EDGE_RISING>;
+
+		enable-gpios = <&tlmm 12 GPIO_ACTIVE_HIGH>;
+		firmware-gpios = <&tlmm 62 GPIO_ACTIVE_HIGH>;
+
+		pinctrl-0 = <&nfc_default>;
+		pinctrl-1 = <&nfc_sleep>;
+		pinctrl-names = "default", "sleep";
+	};
+};
+
 &i2c10 {
 	status = "okay";
 	clock-frequency = <100000>;
@@ -674,6 +694,11 @@ &qupv3_id_0 {
 	status = "okay";
 };
 
+&qup_i2c3_default {
+	drive-strength = <2>;
+	bias-disable;
+};
+
 &qup_i2c10_default {
 	drive-strength = <2>;
 	bias-disable;
@@ -1007,6 +1032,38 @@ speaker_default: speaker-default-state {
 		bias-pull-up;
 		output-high;
 	};
+
+	nfc_default: nfc-default-state {
+		enable-pins {
+			pins = "gpio12", "gpio62";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-pull-up;
+		};
+
+		int-pins {
+			pins = "gpio63";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-pull-up;
+		};
+	};
+
+	nfc_sleep: nfc-sleep-state {
+		enable-pins {
+			pins = "gpio12", "gpio62";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-disable;
+		};
+
+		int-pins {
+			pins = "gpio63";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-pull-up;
+		};
+	};
 };
 
 &venus {

-- 
2.53.0