netdev - Re: [PATCH net-next 1/3] dt-bindings: net: add dt bindings for marvell10g driver

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Message-ID: <20200227172608.GO25745@shell.armlinux.org.uk>
Date:   Thu, 27 Feb 2020 17:26:08 +0000
From:   Russell King - ARM Linux admin <linux@...linux.org.uk>
To:     Rob Herring <robh+dt@...nel.org>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        devicetree@...r.kernel.org, Jason Cooper <jason@...edaemon.net>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        Mark Rutland <mark.rutland@....com>,
        netdev <netdev@...r.kernel.org>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Subject: Re: [PATCH net-next 1/3] dt-bindings: net: add dt bindings for
 marvell10g driver

On Thu, Feb 27, 2020 at 11:13:41AM -0600, Rob Herring wrote:
> On Thu, Feb 27, 2020 at 3:52 AM Russell King <rmk+kernel@...linux.org.uk> wrote:
> >
> > Add a DT bindings document for the Marvell 10G driver, which will
> > augment the generic ethernet PHY binding by having LED mode
> > configuration.
> >
> > Signed-off-by: Russell King <rmk+kernel@...linux.org.uk>
> > ---
> >  .../devicetree/bindings/net/marvell,10g.yaml  | 31 +++++++++++++++++++
> >  1 file changed, 31 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/net/marvell,10g.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/net/marvell,10g.yaml b/Documentation/devicetree/bindings/net/marvell,10g.yaml
> > new file mode 100644
> > index 000000000000..da597fc5314d
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/net/marvell,10g.yaml
> > @@ -0,0 +1,31 @@
> > +# SPDX-License-Identifier: GPL-2.0+
> 
> Dual license new bindings please:
> 
> (GPL-2.0-only OR BSD-2-Clause)
> 
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/net/marvell,10g.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Marvell Alaska X family Ethernet PHYs
> > +
> > +maintainers:
> > +  - Russell King <rmk+kernel@...linux.org.uk>
> > +
> > +allOf:
> > +  - $ref: ethernet-phy.yaml#
> > +
> > +properties:
> > +  marvell,led-mode:
> > +    description: |
> > +      An array of one to four 16-bit integers to write to the PHY LED
> > +      configuration registers.
> 
> This is for what to blink or turn on for? I thought we had something
> generic for configuring PHY LEDs specifically?

I see nothing in ethernet-phy.yaml.

Yes, it configures which conditions cause the LED to illuminate and/or
blink, what blink rate and polarity of the pin.

> > +    allOf:
> > +      - $ref: /schemas/types.yaml#/definitions/uint16-array
> > +      - minItems: 1
> > +        maxItems: 4
> > +
> > +examples:
> > +  - |
> > +    ethernet-phy@0 {
> > +        reg = <0>;
> 
> This needs to be under an 'mdio' node with #address-cells and
> #size-cells set correctly.

I wish these things were documented somewhere... I'm pretty sure this
passed validation when I wrote it.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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