linux-kernel - Re: [PATCH v5 1/2] dt-bindings: usb: Add the binding example for the Genesys Logic GL3523 hub

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Message-ID: <CANAwSgQhvxUgg1BO2=eWJ_ZEtFKsidYo_xQNxji7yVE=Qy0F0Q@mail.gmail.com>
Date:   Thu, 30 Nov 2023 22:55:29 +0530
From:   Anand Moon <linux.amoon@...il.com>
To:     Conor Dooley <conor@...nel.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Icenowy Zheng <uwu@...nowy.me>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        linux-amlogic@...ts.infradead.org, linux-usb@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 1/2] dt-bindings: usb: Add the binding example for the
 Genesys Logic GL3523 hub

Hi Conor,

On Thu, 30 Nov 2023 at 20:52, Conor Dooley <conor@...nel.org> wrote:
>
> On Thu, Nov 30, 2023 at 03:16:33PM +0000, Conor Dooley wrote:
> > On Thu, Nov 30, 2023 at 11:01:26AM +0530, Anand Moon wrote:
> > > Add the binding example for the USB3.1 Genesys Logic GL3523
> > > integrates with USB 3.1 Gen 1 Super Speed and USB 2.0 High-Speed
> > > hub.
> > >
> > > For onboard hub controllers that support USB 3.x and USB 2.0 hubs
> > > with shared resets and power supplies, this property is used to identify
> > > the hubs with which these are shared.
> > >
> >
> > > [Conor Dooley: upgrade peer-hub description]
> >
ok
> > This should not be in the commit message. Otherwise,
> > Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>
> >
> > Cheers,
> > Conor.
> >
> > > Signed-off-by: Anand Moon <linux.amoon@...il.com>
> > > ---
> > > v5: upgrade peer-hub description : Conor Dooley
> > > [0] https://www.genesyslogic.com.tw/en/product_view.php?show=67 [Block Diagram]
> > > v4: Fix the description of peer-hub and update the commit message.
> > > Schematics of the Odroid N2+
> > > https://dn.odroid.com/S922X/ODROID-N2/Schematic/odroid-n2_rev0.6_20210121.pdf
> > > V3: fix the dt_binding_check error, added new example for Genesys GL3523
> > > v2: added Genesys GL3523 binding
> > > v1: none
> > > ---
> > >  .../bindings/usb/genesys,gl850g.yaml          | 65 +++++++++++++++++--
> > >  1 file changed, 61 insertions(+), 4 deletions(-)
> > >
> > > diff --git a/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml b/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml
> > > index ee08b9c3721f..499192ea4074 100644
> > > --- a/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml
> > > +++ b/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml
> > > @@ -9,9 +9,6 @@ title: Genesys Logic USB hub controller
> > >  maintainers:
> > >    - Icenowy Zheng <uwu@...nowy.me>
> > >
> > > -allOf:
> > > -  - $ref: usb-device.yaml#
> > > -
> > >  properties:
> > >    compatible:
> > >      enum:
> > > @@ -27,12 +24,46 @@ properties:
> > >
> > >    vdd-supply:
> > >      description:
> > > -      the regulator that provides 3.3V core power to the hub.
> > > +      phandle to the regulator that provides power to the hub.
>
> Wait, why is this text changing? I don't see it mentioned anywhere why
> this is no longer specifically 3.3v
>
GL3523 has built-in 5V to 3.3V and 5V to 1.2V regulators, which saves
customers’ BOM cost, and eases for PCB design.

Do I have to update this in the commit message? or leave this original.

> Thanks,
> Conor.
>
Thanks
-Anand