linux-kernel - Re: [PATCH v4 2/8] dt-bindings: phy: qcom,qmp-usb: Add IPQ9574 USB3 PHY

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Message-ID: <7c4af740-1cf5-6b20-4642-8657ef31c9d8@linaro.org>
Date:   Thu, 30 Mar 2023 15:54:33 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Varadarajan Narayanan <quic_varada@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc:     agross@...nel.org, andersson@...nel.org, konrad.dybcio@...aro.org,
        vkoul@...nel.org, kishon@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, gregkh@...uxfoundation.org,
        mturquette@...libre.com, sboyd@...nel.org, quic_wcheng@...cinc.com,
        linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-clk@...r.kernel.org
Subject: Re: [PATCH v4 2/8] dt-bindings: phy: qcom,qmp-usb: Add IPQ9574 USB3
 PHY

On 30/03/2023 09:10, Varadarajan Narayanan wrote:
> On Mon, Mar 27, 2023 at 01:02:52PM +0300, Dmitry Baryshkov wrote:
>> On 27/03/2023 12:30, Varadarajan Narayanan wrote:
>>> Add dt-bindings for USB3 PHY found on Qualcomm IPQ9574
>>>
>>> Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
>>> ---
>>>  Changes in v4:
>>> 	- Remove constraints not applicable to IPQ9574
>>>  Changes in v3:
>>> 	- Update other mandatory fields to accomodate IPQ9574
>>>  Changes in v2:
>>> 	- Updated sections missed in previous patch
>>> ---
>>>  .../bindings/phy/qcom,msm8996-qmp-usb3-phy.yaml    | 25 ++++++++++++++++++++--
>>>  1 file changed, 23 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/Documentation/devicetree/bindings/phy/qcom,msm8996-qmp-usb3-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,msm8996-qmp-usb3-phy.yaml
>>> index e81a382..aa5b58c 100644
>>> --- a/Documentation/devicetree/bindings/phy/qcom,msm8996-qmp-usb3-phy.yaml
>>> +++ b/Documentation/devicetree/bindings/phy/qcom,msm8996-qmp-usb3-phy.yaml
>>> @@ -21,6 +21,7 @@ properties:
>>>      enum:
>>>        - qcom,ipq6018-qmp-usb3-phy
>>>        - qcom,ipq8074-qmp-usb3-phy
>>> +      - qcom,ipq9574-qmp-usb3-phy
>>>        - qcom,msm8996-qmp-usb3-phy
>>>        - qcom,msm8998-qmp-usb3-phy
>>>        - qcom,qcm2290-qmp-usb3-phy
>>> @@ -122,8 +123,6 @@ required:
>>>    - clock-names
>>>    - resets
>>>    - reset-names
>>> -  - vdda-phy-supply
>>> -  - vdda-pll-supply
>>
>> Same questions as for the qusb2 PHY. How is the PHY powered?
> 
> It is powered by always on regulators. Will create fixed
> regulators and assign them to these.

always-on where? in DTS? Then it is not really related to this patch...
or you meant always-on power domains? Yet still device has power supplies.

Best regards,
Krzysztof