linux-kernel - Re: [PATCH v1 01/11] dt-bindings: usb: Add device id for Genesys Logic hub controller

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Message-ID: <CANAwSgSJ1SQXUovgM6FHUozr46C_CogLaAD4gf4ANNHXoav6ag@mail.gmail.com>
Date:   Wed, 28 Dec 2022 15:59:17 +0530
From:   Anand Moon <linux.amoon@...il.com>
To:     Icenowy Zheng <uwu@...nowy.me>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-amlogic@...ts.infradead.org, linux-usb@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 01/11] dt-bindings: usb: Add device id for Genesys
 Logic hub controller

Hi Icenowy,

Thanks for the review comments

On Wed, 28 Dec 2022 at 15:38, Icenowy Zheng <uwu@...nowy.me> wrote:
>
> 在 2022-12-28星期三的 10:03 +0000，Anand Moon写道：
> > Add usb hub device id for Genesys Logic, Inc. GL852G-OHG Hub USB 2.0
> > root hub and Genesys Logic, Inc. GL3523-QFN76 USB 3.1 root hub.
> >
> > Signed-off-by: Anand Moon <linux.amoon@...il.com>
> > ---
> >  Documentation/devicetree/bindings/usb/genesys,gl850g.yaml | 2 ++
> >  1 file changed, 2 insertions(+)
> >
> > diff --git
> > a/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml
> > b/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml
> > index a9f831448cca..db009f3ef438 100644
> > --- a/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml
> > +++ b/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml
> > @@ -16,6 +16,8 @@ properties:
> >    compatible:
> >      enum:
> >        - usb5e3,608
> > +      - genesys,usb5e3,610
> > +      - genesys,usb5e3,620
>
> I don't think genesys, is needed here because usb5e3 means USB VID
> 0x05e3, which is already linked to Genesys Logic.
>

Ok, I added this as genesys, is it part of the manufacturer or vendor name
which is most commonly used for adding vendor-specific compatible strings.

> In addition, the control logic of these two hubs are needed to be
> verified.

We were using gpio-hog to reset the USB hub, so now switch to USB onboard hub

>
> And what's the status of the companion hub of the USB3 hub? Is it
> really a USB3-only hub, or is its USB2 part just equal to another USB3
> hub?
>
usb5e3,610 is USB 2.0 port hub present on Odroid C1 and Odroid C2 board

usb5e3,620 is USB 3.1 port hub present on Odroid N2.

> >
> >    reg: true
> >
>

Thanks
-Anand