From: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>
Date: Thu, 5 Jun 2025 23:39:15 +0000 (-0500)
Subject: arm64: dts: qcom: x1e80100-dell-xps13-9345: Enable fingerprint sensor
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8a2bd44062347f56ee09a645eb24b47c45457909;p=thirdparty%2Flinux.git

arm64: dts: qcom: x1e80100-dell-xps13-9345: Enable fingerprint sensor

The fingerprint sensor, hidden in the power button, is connected to one
of the USB multiport ports; while the other port is unused.

Describe the USB controller, the four phys and the repeater involved to
make the fingerprint sensor operational.

Tested-by: Stefan Schmidt <stefan.schmidt@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Tested-by: Aleksandrs Vinarskis <alex.vinarskis@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250605-xps13-fingerprint-v2-1-eebf84c172f2@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
---

diff --git a/arch/arm64/boot/dts/qcom/x1e80100-dell-xps13-9345.dts b/arch/arm64/boot/dts/qcom/x1e80100-dell-xps13-9345.dts
index 967f6dba0878b..a98254e486dbc 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-dell-xps13-9345.dts
+++ b/arch/arm64/boot/dts/qcom/x1e80100-dell-xps13-9345.dts
@@ -744,8 +744,21 @@
 
 &i2c9 {
 	clock-frequency = <400000>;
-	status = "disabled";
-	/* USB3 retimer device @0x4f */
+	status = "okay";
+
+	eusb6_repeater: redriver@4f {
+		compatible = "nxp,ptn3222";
+		reg = <0x4f>;
+		#phy-cells = <0>;
+
+		vdd3v3-supply = <&vreg_l13b_3p0>;
+		vdd1v8-supply = <&vreg_l4b_1p8>;
+
+		reset-gpios = <&tlmm 184 GPIO_ACTIVE_LOW>;
+
+		pinctrl-0 = <&eusb6_reset_n>;
+		pinctrl-names = "default";
+	};
 };
 
 &i2c17 {
@@ -967,6 +980,14 @@
 		bias-disable;
 	};
 
+	eusb6_reset_n: eusb6-reset-n-state {
+		pins = "gpio184";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+		output-low;
+	};
+
 	hall_int_n_default: hall-int-n-state {
 		pins = "gpio92";
 		function = "gpio";
@@ -1172,3 +1193,37 @@
 &usb_1_ss1_qmpphy_out {
 	remote-endpoint = <&retimer_ss1_ss_in>;
 };
+
+&usb_mp {
+	status = "okay";
+};
+
+&usb_mp_hsphy0 {
+	vdd-supply = <&vreg_l2e_0p8>;
+	vdda12-supply = <&vreg_l3e_1p2>;
+
+	status = "okay";
+};
+
+&usb_mp_hsphy1 {
+	vdd-supply = <&vreg_l2e_0p8>;
+	vdda12-supply = <&vreg_l3e_1p2>;
+
+	phys = <&eusb6_repeater>;
+
+	status = "okay";
+};
+
+&usb_mp_qmpphy0 {
+	vdda-phy-supply = <&vreg_l3e_1p2>;
+	vdda-pll-supply = <&vreg_l3c_0p9>;
+
+	status = "okay";
+};
+
+&usb_mp_qmpphy1 {
+	vdda-phy-supply = <&vreg_l3e_1p2>;
+	vdda-pll-supply = <&vreg_l3c_0p9>;
+
+	status = "okay";
+};