linux-kernel - Re: [PATCH] arm64: dts: qcom: sm8450: add missing power-domains property to usb qmpphy node

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Date:   Wed, 21 Jun 2023 12:49:03 +0200
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: sm8450: add missing power-domains
 property to usb qmpphy node

On 21/06/2023 12:39, Neil Armstrong wrote:
> Hi,
> 
> On 21/06/2023 12:01, Konrad Dybcio wrote:
>> On 21.06.2023 11:55, Neil Armstrong wrote:
>>> Add the missing property to fix the bindings check error:
>>> arch/arm64/boot/dts/qcom/sm8450-hdk.dtb: phy@...8000: 'power-domains' is a required property
>>>      From schema: Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml
>>>
>>> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
>>> ---
>> Are you sure about this one? Historically PHYs have had their own GDSCs.
>>
>> May just be a wrong binding fwiw
> 
> Indeed you're right, forget this patch USB30_PRIM_GDSC id for the controller
> and starting from SM8550 a new one is used USB3_PHY_GDSC.
> 
> I'll fix the bindings.

https://lore.kernel.org/all/20230521202321.19778-2-dmitry.baryshkov@linaro.org/ does exactly that,
so no need to fix anything.

Neil

> 
> Neil
> 
>>
>> Konrad
>>>   arch/arm64/boot/dts/qcom/sm8450.dtsi | 2 ++
>>>   1 file changed, 2 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/qcom/sm8450.dtsi b/arch/arm64/boot/dts/qcom/sm8450.dtsi
>>> index 5cd7296c7660..f921bd520e40 100644
>>> --- a/arch/arm64/boot/dts/qcom/sm8450.dtsi
>>> +++ b/arch/arm64/boot/dts/qcom/sm8450.dtsi
>>> @@ -2046,6 +2046,8 @@ usb_1_qmpphy: phy@...8000 {
>>>                    <&gcc GCC_USB3_PRIM_PHY_PIPE_CLK>;
>>>               clock-names = "aux", "ref", "com_aux", "usb3_pipe";
>>> +            power-domains = <&gcc USB30_PRIM_GDSC>;
>>> +
>>>               resets = <&gcc GCC_USB3_DP_PHY_PRIM_BCR>,
>>>                    <&gcc GCC_USB3_PHY_PRIM_BCR>;
>>>               reset-names = "phy", "common";
>>>
>>> ---
>>> base-commit: 15e71592dbae49a674429c618a10401d7f992ac3
>>> change-id: 20230621-topic-sm8450-upstream-usb-phy-missing-power-domains-499a3d6c725f
>>>
>>> Best regards,
>