[PATCH 3/3] arm64: dts: qcom: sdm670-google: Add NFC support

[David Heidelberg via B4 Relay <devnull+david.ixit.cz@kernel.org>]

From: Richard Acayan <mailingradian@gmail.com>

The NFC driver can detect and read an NFC tag.

Signed-off-by: Richard Acayan <mailingradian@gmail.com>
Co-developed-by: David Heidelberg <david@ixit.cz>
Signed-off-by: David Heidelberg <david@ixit.cz>
---
 arch/arm64/boot/dts/qcom/sdm670-google-common.dtsi | 42 ++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm670-google-common.dtsi b/arch/arm64/boot/dts/qcom/sdm670-google-common.dtsi
index b4854801a5f5e..5c2613e53679c 100644
--- a/arch/arm64/boot/dts/qcom/sdm670-google-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm670-google-common.dtsi
@@ -485,16 +485,35 @@ &gpi_dma1 {
 &gpu {
 	status = "okay";
 };
 
 &gpu_zap_shader {
 	firmware-name = "qcom/sdm670/sargo/a615_zap.mbn";
 };
 
+&i2c3 {
+	clock-frequency = <400000>;
+
+	status = "okay";
+
+	nfc@28 {
+		compatible = "nxp,pn557", "nxp,nxp-nci-i2c";
+		reg = <0x28>;
+
+		interrupts-extended = <&tlmm 44 IRQ_TYPE_EDGE_RISING>;
+
+		enable-gpios = <&tlmm 12 GPIO_ACTIVE_HIGH>;
+		firmware-gpios = <&tlmm 43 GPIO_ACTIVE_HIGH>;
+
+		pinctrl-0 = <&nfc_default>;
+		pinctrl-names = "default";
+	};
+};
+
 &i2c9 {
 	clock-frequency = <100000>;
 	status = "okay";
 
 	synaptics-rmi4-i2c@20 {
 		compatible = "syna,rmi4-i2c";
 		reg = <0x20>;
 		interrupts-extended = <&tlmm 125 IRQ_TYPE_EDGE_FALLING>;
@@ -686,16 +705,39 @@ ts-irq-pins {
 		ts-switch-pins {
 			pins = "gpio135";
 			function = "gpio";
 			drive-strength = <2>;
 			bias-disable;
 			output-low;
 		};
 	};
+
+	nfc_default: nfc-default-state {
+		enable-pins {
+			pins = "gpio12";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-pull-down;
+		};
+
+		firmware-pins {
+			pins = "gpio43";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-pull-down;
+		};
+
+		irq-pins {
+			pins = "gpio44";
+			function = "gpio";
+			drive-strength = <2>;
+			bias-pull-down;
+		};
+	};
 };
 
 &usb_1_hsphy {
 	vdd-supply = <&vreg_l1b_0p925>;
 	vdda-pll-supply = <&vreg_l10a_1p8>;
 	vdda-phy-dpdm-supply = <&vreg_l7b_3p125>;
 
 	status = "okay";

-- 
2.55.0