linux-kernel - Re: [PATCH v10 3/3] arm64: dts: qcom: sm8750: Add USB support for SM8750 MTP platform

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Message-ID: <42b9b481-ec70-4600-bae4-9f0afa201623@oss.qualcomm.com>
Date: Fri, 31 Oct 2025 21:04:16 +0530
From: Krishna Kurapati PSSNV <krishna.kurapati@....qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Cc: 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>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Wesley Cheng <wesley.cheng@....qualcomm.com>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Jishnu Prakash <jishnu.prakash@....qualcomm.com>
Subject: Re: [PATCH v10 3/3] arm64: dts: qcom: sm8750: Add USB support for
 SM8750 MTP platform



On 10/31/2025 8:14 PM, Dmitry Baryshkov wrote:
> On Fri, Oct 31, 2025 at 06:03:54PM +0530, Krishna Kurapati wrote:
>> From: Wesley Cheng <wesley.cheng@....qualcomm.com>
>>
>> Enable USB support on SM8750 QRD variant. Add the PMIC glink node with
>> connector to enable role switch support.
> 
> Subject speaks about MTP.
> 

My bad. Will fix it up.

Regards,
Krishna,

>>
>> Signed-off-by: Wesley Cheng <wesley.cheng@....qualcomm.com>
>> [Konrad: Provided diff to flatten USB node on MTP]
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
>> Co-developed-by: Jishnu Prakash <jishnu.prakash@....qualcomm.com>
>> Signed-off-by: Jishnu Prakash <jishnu.prakash@....qualcomm.com>
>> Signed-off-by: Krishna Kurapati <krishna.kurapati@....qualcomm.com>
>> ---
>>   arch/arm64/boot/dts/qcom/sm8750-qrd.dts | 73 +++++++++++++++++++++++++
>>   1 file changed, 73 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sm8750-qrd.dts b/arch/arm64/boot/dts/qcom/sm8750-qrd.dts
>> index 13c7b9664c89..c545695751db 100644
>> --- a/arch/arm64/boot/dts/qcom/sm8750-qrd.dts
>> +++ b/arch/arm64/boot/dts/qcom/sm8750-qrd.dts
>> @@ -193,6 +193,51 @@ platform {
>>   		};
>>   	};
>>   
>> +	pmic-glink {
>> +		compatible = "qcom,sm8750-pmic-glink",
>> +			     "qcom,sm8550-pmic-glink",
>> +			     "qcom,pmic-glink";
>> +		#address-cells = <1>;
>> +		#size-cells = <0>;
>> +		orientation-gpios = <&tlmm 61 GPIO_ACTIVE_HIGH>;
>> +
>> +		connector@0 {
>> +			compatible = "usb-c-connector";
>> +			reg = <0>;
>> +
>> +			power-role = "dual";
>> +			data-role = "dual";
>> +
>> +			ports {
>> +				#address-cells = <1>;
>> +				#size-cells = <0>;
>> +
>> +				port@0 {
>> +					reg = <0>;
>> +
>> +					pmic_glink_hs_in: endpoint {
>> +						remote-endpoint = <&usb_dwc3_hs>;
>> +					};
>> +				};
>> +
>> +				port@1 {
>> +					reg = <1>;
>> +
>> +					pmic_glink_ss_in: endpoint {
>> +						remote-endpoint = <&usb_dp_qmpphy_out>;
>> +					};
>> +				};
>> +
>> +				port@2 {
>> +					reg = <2>;
>> +
>> +					pmic_glink_sbu: endpoint {
>> +					};
>> +				};
>> +			};
>> +		};
>> +	};
>> +
>>   	vph_pwr: vph-pwr-regulator {
>>   		compatible = "regulator-fixed";
>>   
>> @@ -1054,3 +1099,31 @@ &ufs_mem_hc {
>>   
>>   	status = "okay";
>>   };
>> +
>> +&usb {
>> +	status = "okay";
>> +};
>> +
>> +&usb_dwc3_hs {
>> +	remote-endpoint = <&pmic_glink_hs_in>;
>> +};
>> +
>> +&usb_hsphy {
>> +	vdd-supply = <&vreg_l2d_0p88>;
>> +	vdda12-supply = <&vreg_l3g_1p2>;
>> +
>> +	phys = <&pmih0108_eusb2_repeater>;
>> +
>> +	status = "okay";
>> +};
>> +
>> +&usb_dp_qmpphy {
>> +	vdda-phy-supply = <&vreg_l3g_1p2>;
>> +	vdda-pll-supply = <&vreg_l2d_0p88>;
>> +
>> +	status = "okay";
>> +};
>> +
>> +&usb_dp_qmpphy_out {
>> +	remote-endpoint = <&pmic_glink_ss_in>;
>> +};
> 
> usb_dp < usb_hsphy
> 
>> -- 
>> 2.34.1
>>
>