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

From: Dmitry Baryshkov

Date: Tue Oct 28 2025 - 17:14:09 EST


On Fri, Oct 24, 2025 at 08:45:19PM +0530, Krishna Kurapati wrote:
> From: Wesley Cheng <wesley.cheng@xxxxxxxxxxxxxxxx>
>
> 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@xxxxxxxxxxxxxxxx>
> [Konrad: Provided diff to flattened USB node]
> Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
> Signed-off-by: Krishna Kurapati <krishna.kurapati@xxxxxxxxxxxxxxxx>
> ---
> arch/arm64/boot/dts/qcom/sm8750.dtsi | 158 +++++++++++++++++++++++++++
> 1 file changed, 158 insertions(+)
>
> +
> + usb_dp_qmpphy: phy@88e8000 {

You also need to update gcc clocks properties.

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

--
With best wishes
Dmitry