From: Jens Glathe <jens.glathe@oldschoolsolutions.biz>

The usb_1_ss2 complex has 2 phys, usb_1_ss2_hsphy and usb_1_ss2_qmpphy. On this
laptop, they are used for different peripherals: The hsphy for the fingerprint
reader, the qmpphy to drive a hdmi bridge. The normal logical wiring for the dwc3
controller is to both phys. Overwrite that with ports only to the hsphy.

Signed-off-by: Jens Glathe <jens.glathe@oldschoolsolutions.biz>
---
 arch/arm64/boot/dts/qcom/x1p42100-lenovo-thinkbook-16.dts | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/x1p42100-lenovo-thinkbook-16.dts b/arch/arm64/boot/dts/qcom/x1p42100-lenovo-thinkbook-16.dts
index 3186e79e862de67cbda48a4b85a459e6e965ba65..b505a4cbb4350a962bbf779ec788265c7583bf20 100644
--- a/arch/arm64/boot/dts/qcom/x1p42100-lenovo-thinkbook-16.dts
+++ b/arch/arm64/boot/dts/qcom/x1p42100-lenovo-thinkbook-16.dts
@@ -1560,6 +1560,20 @@ &usb_1_ss2_dwc3 {
 	maximum-speed = "high-speed";
 	phys = <&usb_1_ss2_hsphy>;
 	phy-names = "usb2-phy";
+
+	/delete-property/ ports;
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+
+			usb_1_ss2_dwc3_hs: endpoint {
+			};
+		};
+	};
 };
 
 &usb_1_ss2_hsphy {

-- 
2.51.0

On Sat, Dec 20, 2025 at 06:47:09PM +0100, Jens Glathe via B4 Relay wrote:
> From: Jens Glathe <jens.glathe@oldschoolsolutions.biz>
> 
> The usb_1_ss2 complex has 2 phys, usb_1_ss2_hsphy and usb_1_ss2_qmpphy. On this
> laptop, they are used for different peripherals: The hsphy for the fingerprint
> reader, the qmpphy to drive a hdmi bridge. The normal logical wiring for the dwc3
> controller is to both phys. Overwrite that with ports only to the hsphy.
> 
> Signed-off-by: Jens Glathe <jens.glathe@oldschoolsolutions.biz>
> ---
>  arch/arm64/boot/dts/qcom/x1p42100-lenovo-thinkbook-16.dts | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/x1p42100-lenovo-thinkbook-16.dts b/arch/arm64/boot/dts/qcom/x1p42100-lenovo-thinkbook-16.dts
> index 3186e79e862de67cbda48a4b85a459e6e965ba65..b505a4cbb4350a962bbf779ec788265c7583bf20 100644
> --- a/arch/arm64/boot/dts/qcom/x1p42100-lenovo-thinkbook-16.dts
> +++ b/arch/arm64/boot/dts/qcom/x1p42100-lenovo-thinkbook-16.dts
> @@ -1560,6 +1560,20 @@ &usb_1_ss2_dwc3 {
>  	maximum-speed = "high-speed";
>  	phys = <&usb_1_ss2_hsphy>;
>  	phy-names = "usb2-phy";
> +
> +	/delete-property/ ports;

Just delete port@1 or only &usb_1_ss2_dwc3_ss endpoint.

> +
> +	ports {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +
> +		port@0 {
> +			reg = <0>;
> +
> +			usb_1_ss2_dwc3_hs: endpoint {
> +			};
> +		};
> +	};
>  };
>  
>  &usb_1_ss2_hsphy {
> 
> -- 
> 2.51.0
> 
> 

-- 
With best wishes
Dmitry

On 20.12.25 19:54, Dmitry Baryshkov wrote:
> On Sat, Dec 20, 2025 at 06:47:09PM +0100, Jens Glathe via B4 Relay wrote:
>> From: Jens Glathe <jens.glathe@oldschoolsolutions.biz>
>>
>> +
>> +	/delete-property/ ports;
> Just delete port@1 or only &usb_1_ss2_dwc3_ss endpoint.

Good catch, will do in v2.

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