linux-kernel - Re: [PATCH v4 4/4] arm64: dts: qcom: lemans-evk: Enable secondary USB controller in host mode

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Message-ID: <3hdaz7x3t66bwqrcwny6iuuk2zzit7pcqev5ri3gawftsfxtru@fhlcf3xbchar>
Date: Wed, 21 Jan 2026 00:18:25 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Swati Agarwal <swati.agarwal@....qualcomm.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, Icenowy Zheng <uwu@...nowy.me>,
        Matthias Kaehlcke <mka@...omium.org>,
        Mike Looijmans <mike.looijmans@...ic.nl>,
        Stephen Boyd <swboyd@...omium.org>,
        Jens Glathe <jens.glathe@...schoolsolutions.biz>,
        Chaoyi Chen <chaoyi.chen@...k-chips.com>,
        J . Neuschäfer <j.ne@...teo.net>,
        Pin-yen Lin <treapking@...omium.org>,
        Catalin Popescu <catalin.popescu@...ca-geosystems.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, linux-usb@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v4 4/4] arm64: dts: qcom: lemans-evk: Enable secondary
 USB controller in host mode

On Tue, Jan 20, 2026 at 04:03:12PM +0530, Swati Agarwal wrote:
> Enable secondary USB controller in host mode on lemans EVK Platform.
> 
> Secondary USB controller is connected to a Genesys Logic USB HUB GL3590
> having 4 ports The ports of hub that are present on lemans EVK standalone
> board are used as follows:-
> 1) port-1 is connected to HD3SS3220 Type-C port controller.
> 2) port-4 is used for the M.2 E key on corekit. Standard core kit uses UART
> for Bluetooth. This port is to be used only if user optionally replaces the
> WiFi card with the NFA765 chip which uses USB for Bluetooth.
> 
> Remaining 2 ports will become functional when the interface plus mezzanine
> board is stacked on top of corekit:
> 
> 3) port-2 is connected to another hub which is present on the mezz through
> which 4 type-A ports are connected.
> 4) port-3 is used for the M.2 B key for a 5G card when the mezz is
> connected.
> 
> Mark the second USB controller as host only capable and add the HD3SS3220
> Type-C port controller along with Type-c connector for controlling vbus
> supply.
> 
> Signed-off-by: Swati Agarwal <swati.agarwal@....qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/lemans-evk.dts | 209 ++++++++++++++++++++++++
>  1 file changed, 209 insertions(+)
> 
> @@ -536,6 +585,32 @@ hd3ss3220_0_out_ep: endpoint {
>  			};
>  		};
>  	};
> +
> +	usb-typec@47 {
> +		compatible = "ti,hd3ss3220";
> +		reg = <0x47>;
> +
> +		interrupts-extended = <&pmm8654au_2_gpios 6 IRQ_TYPE_EDGE_FALLING>;
> +
> +		id-gpios = <&tlmm 51 GPIO_ACTIVE_HIGH>;
> +
> +		pinctrl-0 = <&usb1_id>, <&usb1_intr>;
> +		pinctrl-names = "default";
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
> +
> +				hd3ss3220_1_in_ep: endpoint {
> +					remote-endpoint = <&usb1_con_ss_ep>;
> +				};
> +			};

This wasn't tested against bindings. Why?

> +		};
> +	};
> +
>  };
>  
>  &i2c18 {

-- 
With best wishes
Dmitry