linux-kernel - Re: [PATCH v9 1/3] arm64: dts: qcom: sm8750: Add USB support to SM8750 SoCs

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Message-ID: <125f4812-e333-4245-af54-f693d01bd534@oss.qualcomm.com>
Date: Fri, 31 Oct 2025 13:17:18 +0530
From: Krishna Kurapati PSSNV <krishna.kurapati@....qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...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>
Subject: Re: [PATCH v9 1/3] arm64: dts: qcom: sm8750: Add USB support to
 SM8750 SoCs



On 10/29/2025 2:44 AM, Dmitry Baryshkov wrote:
> On Fri, Oct 24, 2025 at 08:45:19PM +0530, Krishna Kurapati wrote:
>> From: Wesley Cheng <wesley.cheng@....qualcomm.com>
>>
>> SM8750 chipset contains a single DWC3 USB3 controller (rev. 200a), SS
>> QMP PHY (rev. v8) and M31 eUSB2 PHY.  The major difference for SM8750 is
>> the transition to using the M31 eUSB2 PHY compared to previous SoCs.
>>
>> Enable USB support on SM8750 MTP and QRD variants. SM8750 has a QMP combo
>> PHY for the SSUSB path, and a M31 eUSB2 PHY for the HSUSB path.
>>
>> Signed-off-by: Wesley Cheng <wesley.cheng@....qualcomm.com>
>> [Konrad: Provided diff to flattened USB node]
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
>> Signed-off-by: Krishna Kurapati <krishna.kurapati@....qualcomm.com>
>> ---
>>   arch/arm64/boot/dts/qcom/sm8750.dtsi | 158 +++++++++++++++++++++++++++
>>   1 file changed, 158 insertions(+)
>>
>> +
>> +		usb_dp_qmpphy: phy@...8000 {
> 
> You also need to update gcc clocks properties.

ACK.
Will add the qmp pipe clock in the last entry of gcc properties.

Regards,
Krishna,

> 
>> +			compatible = "qcom,sm8750-qmp-usb3-dp-phy";
>> +			reg = <0x0 0x088e8000 0x0 0x4000>;
>> +
>