Re: [PATCH v3 2/2] arm64: dts: qcom: sm8150: Add USB and PHY device nodes

From: Wesley Cheng
Date: Fri Apr 10 2020 - 20:50:29 EST



On 4/7/2020 4:38 PM, Bjorn Andersson wrote:
> On Tue 07 Apr 15:24 PDT 2020, Wesley Cheng wrote:
>
>> From: Jack Pham <jackp@xxxxxxxxxxxxxx>
>>
>> Add device nodes for the USB3 controller, QMP SS PHY and
>> SNPS HS PHY.
>>
>
> Thanks for the respin Wesley, and thanks for testing Vinod. Just spotted
> one little details below.
>
>> Signed-off-by: Jack Pham <jackp@xxxxxxxxxxxxxx>
>> Signed-off-by: Wesley Cheng <wcheng@xxxxxxxxxxxxxx>
>> Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
>> Tested-by: Vinod Koul <vinod.koul@xxxxxxxxxx>
>> ---
>
> Please make a habit of documenting what changed since the previous
> version here, below the ---.
>
>> arch/arm64/boot/dts/qcom/sm8150-mtp.dts | 21 ++++++++
>> arch/arm64/boot/dts/qcom/sm8150.dtsi | 92 +++++++++++++++++++++++++++++++++
>> 2 files changed, 113 insertions(+)
> [..]
>> diff --git a/arch/arm64/boot/dts/qcom/sm8150.dtsi b/arch/arm64/boot/dts/qcom/sm8150.dtsi
> [..]
>> + usb_1_hsphy: phy@88e2000 {
>> + compatible = "qcom,usb-snps-hs-7nm-phy",
>> + "qcom,sm8150-usb-hs-phy";
> [..]
>> + usb_1: usb@a6f8800 {
>> + compatible = "qcom,sdm845-dwc3", "qcom,dwc3";
>
> The first cell here should be qcom,sm8150-dwc3. The Linux driver will
> "fall through" and match on the less specific "qcom,dwc3", but if we in
> the future realize that we have sm8150 specific behavior/quirks we can
> make the driver match on the more specific one to implement this.
>
> And similarly the order of the compatibles in &usb_1_hsphy should be
> reversed as well.
>
> Regards,
> Bjorn
>

Hi Bjorn,

Thanks for the input. Will do that and re-submit v4.

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