linux-kernel - RE: [PATCH v5 4/5] dt-bindings: phy: realtek: Add the doc about the Realtek SoC USB 2.0 PHY

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Date:   Tue, 27 Jun 2023 08:37:37 +0000
From:   Stanley Chang[昌育德] 
        <stanley_chang@...ltek.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Alan Stern <stern@...land.harvard.edu>,
        Douglas Anderson <dianders@...omium.org>,
        Bagas Sanjaya <bagasdotme@...il.com>,
        Ray Chi <raychi@...gle.com>,
        Flavio Suligoi <f.suligoi@...m.it>,
        Matthias Kaehlcke <mka@...omium.org>,
        "linux-phy@...ts.infradead.org" <linux-phy@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>
Subject: RE: [PATCH v5 4/5] dt-bindings: phy: realtek: Add the doc about the Realtek SoC USB 2.0 PHY

Hi Krzysztof,

> On 27/06/2023 10:20, Stanley Chang wrote:
> > Add the documentation explain the property about Realtek USB PHY driver.
> >
> > Realtek DHC (digital home center) RTD SoCs support DWC3 XHCI USB
> > controller. Added the driver to drive the USB 2.0 PHY transceivers.
> >
> > Signed-off-by: Stanley Chang <stanley_chang@...ltek.com>
> > ---
> > v4 to v5 change:
> >     1. Add more examples.
> 
> Not more examples. Just give one or two relevant examples.

Okay. I will keep just one example.

> 
> 
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - "#phy-cells"
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    usb_port0_usb2phy: usb-phy@...14 {
> 
> Drop also the labels.

Okay
> > +        compatible = "realtek,rtd1319d-usb2phy";
> > +        reg = <0x13214 0x4>, <0x28280 0x4>;
> > +        #phy-cells = <0>;
> > +        nvmem-cells = <&otp_usb_port0_dc_cal>,
> <&otp_usb_port0_dc_dis>;
> > +        nvmem-cell-names = "usb-dc-cal", "usb-dc-dis";
> > +
> > +        realtek,driving-level = <0xe>;
> 
> Why keeping this example? I asked to grow it and instead there are two more.
> Just keep one describing as much as possible. Second is useful if you have there
> different properties.
> 
> Your third is almost the same as second, so no need for it at all.

They are real examples for different platform.
So I don't add other properties to example 1.
I will remove example 1 and example 3.

Thanks,
Stanley