linux-kernel - [PATCH v2 1/3] arm64: dts: qcom: qcm6490-fairphone-fp5: Add PTN36502 redriver

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Message-Id: <20250312-fp5-pmic-glink-dp-v2-1-a55927749d77@fairphone.com>
Date: Wed, 12 Mar 2025 13:05:08 +0100
From: Luca Weiss <luca.weiss@...rphone.com>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, cros-qcom-dts-watchers@...omium.org
Cc: ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org, 
 linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Luca Weiss <luca.weiss@...rphone.com>, 
 Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: [PATCH v2 1/3] arm64: dts: qcom: qcm6490-fairphone-fp5: Add
 PTN36502 redriver

Add a node for the "Type-C USB 3.1 Gen 1 and DisplayPort v1.2 combo
redriver" found on this device.

Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
---
 arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts | 35 +++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts b/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
index 0f1c83822f66f95b05d851a5d28b418ff048b09d..ea9f5517e8a083e37c4b7432322bd6d18fea84a5 100644
--- a/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
+++ b/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
@@ -166,6 +166,23 @@ vreg_oled_vci: regulator-oled-vci {
 		regulator-boot-on;
 	};
 
+	vreg_usb_redrive_1v8: regulator-usb-redrive-1v8 {
+		compatible = "regulator-fixed";
+		regulator-name = "USB_REDRIVE_1V8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+
+		gpio = <&tlmm 61 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		vin-supply = <&vreg_bob>;
+
+		regulator-boot-on;
+
+		pinctrl-0 = <&usb_redrive_1v8_en_default>;
+		pinctrl-names = "default";
+	};
+
 	reserved-memory {
 		cont_splash_mem: cont-splash@...00000 {
 			reg = <0x0 0xe1000000 0x0 0x2300000>;
@@ -747,7 +764,15 @@ &i2c2 {
 &i2c4 {
 	status = "okay";
 
-	/* PTN36502 USB redriver @ 1a */
+	typec-mux@1a {
+		compatible = "nxp,ptn36502";
+		reg = <0x1a>;
+
+		vdd18-supply = <&vreg_usb_redrive_1v8>;
+
+		retimer-switch;
+		orientation-switch;
+	};
 };
 
 &i2c9 {
@@ -1182,6 +1207,14 @@ sw_ctrl_default: sw-ctrl-default-state {
 		function = "gpio";
 		bias-pull-down;
 	};
+
+	usb_redrive_1v8_en_default: usb-redrive-1v8-en-default-state {
+		pins = "gpio61";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+		output-high;
+	};
 };
 
 &uart5 {

-- 
2.48.1