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Tue, 07 Jan 2025 05:35:13 -0800 (PST) Received: from [127.0.1.1] ([86.121.162.10]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-38a1c89e126sm49644705f8f.65.2025.01.07.05.35.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jan 2025 05:35:12 -0800 (PST) From: Abel Vesa Date: Tue, 07 Jan 2025 15:35:07 +0200 Subject: [PATCH] arm64: dts: qcom: x1e78100-t14s: Enable fingerprint reader Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250107-x1e80100-t14-enable-fingerprint-sensor-v1-1-8fd911d39ad1@linaro.org> X-B4-Tracking: v=1; b=H4sIAIotfWcC/x2NQQrCQAxFr1KyNjApnY54FXERNdWApCUpUii9u 8Hde/D4f4cQVwm4dDu4fDV0thQ6dfB4s70E9ZkOfelrodJwIzknFFxpQDG+fwQnzdAXV1sxxGJ 25EqNmYexthFybHGZdPsfXW/H8QPUv+JjeAAAAA== X-Change-ID: 20250107-x1e80100-t14-enable-fingerprint-sensor-a517aaa46576 To: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Johan Hovold , Dmitry Baryshkov , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Abel Vesa X-Mailer: b4 0.15-dev-dedf8 X-Developer-Signature: v=1; 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a=openpgp; fpr=6AFF162D57F4223A8770EF5AF7BF214136F41FAE 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 --- .../dts/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/a= rch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts index 9bb6994cc482e28e3e78817adf7ef15421f63219..b2c2347f54fa65f9355f0d7c008= 119e95bb64fb2 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 @@ &i2c5 { =20 status =3D "okay"; =20 + eusb5_repeater: redriver@43 { + compatible =3D "nxp,ptn3222"; + reg =3D <0x43>; + #phy-cells =3D <0>; + + vdd3v3-supply =3D <&vreg_l13b_3p0>; + vdd1v8-supply =3D <&vreg_l4b_1p8>; + + reset-gpios =3D <&tlmm 7 GPIO_ACTIVE_LOW>; + + pinctrl-0 =3D <&eusb5_reset_n>; + pinctrl-names =3D "default"; + }; + eusb3_repeater: redriver@47 { compatible =3D "nxp,ptn3222"; reg =3D <0x47>; @@ -884,6 +898,14 @@ eusb3_reset_n: eusb3-reset-n-state { output-low; }; =20 + eusb5_reset_n: eusb5-reset-n-state { + pins =3D "gpio7"; + function =3D "gpio"; + drive-strength =3D <2>; + bias-disable; + output-low; + }; + eusb6_reset_n: eusb6-reset-n-state { pins =3D "gpio184"; function =3D "gpio"; @@ -1058,6 +1080,23 @@ &usb_1_ss1_qmpphy_out { remote-endpoint =3D <&pmic_glink_ss1_ss_in>; }; =20 +&usb_2 { + status =3D "okay"; +}; + +&usb_2_dwc3 { + dr_mode =3D "host"; +}; + +&usb_2_hsphy { + vdd-supply =3D <&vreg_l2e_0p8>; + vdda12-supply =3D <&vreg_l3e_1p2>; + + phys =3D <&eusb5_repeater>; + + status =3D "okay"; +}; + &usb_mp { status =3D "okay"; }; --- base-commit: 7b4b9bf203da94fbeac75ed3116c84aa03e74578 change-id: 20250107-x1e80100-t14-enable-fingerprint-sensor-a517aaa46576 Best regards, --=20 Abel Vesa