netdev - Re: [PATCH v2 7/7] dt-bindings: adin1100: Add binding for ADIN1100 Ethernet PHY

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Message-ID: <20210729050209.5eo5hgimb5xctdn3@pengutronix.de>
Date:   Thu, 29 Jul 2021 07:02:09 +0200
From:   Oleksij Rempel <o.rempel@...gutronix.de>
To:     Rob Herring <robh+dt@...nel.org>
Cc:     Alexandru Tachici <alexandru.tachici@...log.com>,
        netdev <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        devicetree@...r.kernel.org, Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        David Miller <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Subject: Re: [PATCH v2 7/7] dt-bindings: adin1100: Add binding for ADIN1100
 Ethernet PHY

On Wed, Jul 28, 2021 at 11:23:12AM -0600, Rob Herring wrote:
> On Mon, Jul 26, 2021 at 11:53 PM Oleksij Rempel <o.rempel@...gutronix.de> wrote:
> >
> > On Mon, Jul 12, 2021 at 04:06:31PM +0300, alexandru.tachici@...log.com wrote:
> > > From: Alexandru Tachici <alexandru.tachici@...log.com>
> > >
> > > DT bindings for the ADIN1100 10BASE-T1L Ethernet PHY.
> > >
> > > Signed-off-by: Alexandru Tachici <alexandru.tachici@...log.com>
> > > ---
> > >  .../devicetree/bindings/net/adi,adin1100.yaml | 45 +++++++++++++++++++
> > >  1 file changed, 45 insertions(+)
> > >  create mode 100644 Documentation/devicetree/bindings/net/adi,adin1100.yaml
> > >
> > > diff --git a/Documentation/devicetree/bindings/net/adi,adin1100.yaml b/Documentation/devicetree/bindings/net/adi,adin1100.yaml
> > > new file mode 100644
> > > index 000000000000..14943164da7a
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/net/adi,adin1100.yaml
> > > @@ -0,0 +1,45 @@
> > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > > +%YAML 1.2
> > > +---
> > > +$id: http://devicetree.org/schemas/net/adi,adin1100.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: Analog Devices ADIN1100 PHY
> > > +
> > > +maintainers:
> > > +  - Alexandru Tachici <alexandru.tachici@...log.com>
> > > +
> > > +description:
> > > +  Bindings for Analog Devices Industrial Low Power 10BASE-T1L Ethernet PHY
> > > +
> > > +allOf:
> > > +  - $ref: ethernet-phy.yaml#
> > > +
> > > +properties:
> > > +  adi,disable-2400mv-tx-level:
> > > +    description:
> > > +      Prevent ADIN1100 from using the 2.4 V pk-pk transmit level.
> > > +    type: boolean
> >
> > This property should be generic. It is defined by IEEE 802.3cg 2019 and can
> > be implemented on all T1L PHYs.
> >
> > I assume, it should be something like:
> > ethernet-phy-10base-t1l-2.4vpp-enable
> > ethernet-phy-10base-t1l-2.4vpp-disable
> 
> 'ethernet-phy-' is a bit redundant and I'd make it a tristate (not
> present, 0, 1). So just '10base-t1l-2.4vpp'?
> 
> > To overwrite bootstrapped of fuzed values if supported. The IEEE 802.3cg
> > specification uses following wordings for this functionality:
> > "10BASE-T1L increased transmit level request ..."

sounds ok for me.

Regards,
Oleksij
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