linux-kernel - [PATCH 1/2] arm64: dts: qcom: x1e80100-crd: Add USB multiport fingerprint reader

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Message-Id: <20241118-x1e80100-crd-fp-v1-1-ec6b553a2e53@linaro.org>
Date: Mon, 18 Nov 2024 11:34:29 +0100
From: Stephan Gerhold <stephan.gerhold@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>, 
 linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 Abel Vesa <abel.vesa@...aro.org>, Johan Hovold <johan@...nel.org>
Subject: [PATCH 1/2] arm64: dts: qcom: x1e80100-crd: Add USB multiport
 fingerprint reader

The X1E80100 CRD has a Goodix fingerprint reader connected to the USB
multiport controller on eUSB6. All other ports (including USB super-speed
pins) are unused.

Set it up in the device tree together with the NXP PTN3222 repeater.

Signed-off-by: Stephan Gerhold <stephan.gerhold@...aro.org>
---
 arch/arm64/boot/dts/qcom/x1e80100-crd.dts | 48 +++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
index 39f9d9cdc10d..44942931c18f 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
+++ b/arch/arm64/boot/dts/qcom/x1e80100-crd.dts
@@ -735,6 +735,26 @@ keyboard@3a {
 	};
 };
 
+&i2c5 {
+	clock-frequency = <400000>;
+
+	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";
+	};
+};
+
 &i2c8 {
 	clock-frequency = <400000>;
 
@@ -1047,6 +1067,14 @@ edp_reg_en: edp-reg-en-state {
 		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";
@@ -1260,3 +1288,23 @@ &usb_1_ss2_dwc3_hs {
 &usb_1_ss2_qmpphy_out {
 	remote-endpoint = <&pmic_glink_ss2_ss_in>;
 };
+
+&usb_mp {
+	status = "okay";
+};
+
+&usb_mp_dwc3 {
+	/* Limit to USB 2.0 and single port */
+	maximum-speed = "high-speed";
+	phys = <&usb_mp_hsphy1>;
+	phy-names = "usb2-1";
+};
+
+&usb_mp_hsphy1 {
+	vdd-supply = <&vreg_l2e_0p8>;
+	vdda12-supply = <&vreg_l3e_1p2>;
+
+	phys = <&eusb6_repeater>;
+
+	status = "okay";
+};

-- 
2.44.2