From 5b451930fdeea4e4987d3cc1c4a44da85d0b8b9f Mon Sep 17 00:00:00 2001 From: Abel Vesa Date: Tue, 7 Jan 2025 15:35:07 +0200 Subject: [PATCH] arm64: dts: qcom: x1e78100-t14s: Enable fingerprint reader On Lenovo ThinkPad T14s, the fingerprint reader placed in the power button is connected via the usb_2 controller. The controller has only a USB 2.0 PHY which is then connected via a NXP PTN3222 eUSB2 repeater, which in turn is connected to the Goodix fingerprint reader. So enable all the usb_2 controller and PHY nodes, set dual-role mode to host and describe the eUSB2 repeater in order to get the fingerprint reader discovered. Signed-off-by: Abel Vesa Reviewed-by: Johan Hovold Tested-by: Johan Hovold Link: https://lore.kernel.org/r/20250107-x1e80100-t14-enable-fingerprint-sensor-v1-1-8fd911d39ad1@linaro.org Signed-off-by: Bjorn Andersson --- .../qcom/x1e78100-lenovo-thinkpad-t14s.dts | 39 +++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts index 0502cccf78b9..fa2d00d9d636 100644 --- a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts +++ b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts @@ -612,6 +612,20 @@ status = "okay"; + eusb5_repeater: redriver@43 { + compatible = "nxp,ptn3222"; + reg = <0x43>; + #phy-cells = <0>; + + vdd3v3-supply = <&vreg_l13b_3p0>; + vdd1v8-supply = <&vreg_l4b_1p8>; + + reset-gpios = <&tlmm 7 GPIO_ACTIVE_LOW>; + + pinctrl-0 = <&eusb5_reset_n>; + pinctrl-names = "default"; + }; + eusb3_repeater: redriver@47 { compatible = "nxp,ptn3222"; reg = <0x47>; @@ -884,6 +898,14 @@ output-low; }; + eusb5_reset_n: eusb5-reset-n-state { + pins = "gpio7"; + function = "gpio"; + drive-strength = <2>; + bias-disable; + output-low; + }; + eusb6_reset_n: eusb6-reset-n-state { pins = "gpio184"; function = "gpio"; @@ -1050,6 +1072,23 @@ remote-endpoint = <&pmic_glink_ss1_ss_in>; }; +&usb_2 { + status = "okay"; +}; + +&usb_2_dwc3 { + dr_mode = "host"; +}; + +&usb_2_hsphy { + vdd-supply = <&vreg_l2e_0p8>; + vdda12-supply = <&vreg_l3e_1p2>; + + phys = <&eusb5_repeater>; + + status = "okay"; +}; + &usb_mp { status = "okay"; }; -- 2.50.1