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

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Date:   Thu, 30 Mar 2023 12:40:17 +0530
From:   Varadarajan Narayanan <quic_varada@...cinc.com>
To:     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 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.

Thanks
Varada

> >  additionalProperties: false
>
> --
> With best wishes
> Dmitry
>