netdev - Re: [PATCH v2 15/15] dt-bindings: net: add bindings for ADIN PHY driver

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Date:   Fri, 9 Aug 2019 12:06:30 +0000
From:   "Ardelean, Alexandru" <alexandru.Ardelean@...log.com>
To:     "robh+dt@...nel.org" <robh+dt@...nel.org>
CC:     "andrew@...n.ch" <andrew@...n.ch>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "hkallweit1@...il.com" <hkallweit1@...il.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "f.fainelli@...il.com" <f.fainelli@...il.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH v2 15/15] dt-bindings: net: add bindings for ADIN PHY
 driver

On Thu, 2019-08-08 at 17:03 -0600, Rob Herring wrote:
> [External]
> 
> On Thu, Aug 8, 2019 at 6:31 AM Alexandru Ardelean
> <alexandru.ardelean@...log.com> wrote:
> > This change adds bindings for the Analog Devices ADIN PHY driver, detailing
> > all the properties implemented by the driver.
> > 
> > Signed-off-by: Alexandru Ardelean <alexandru.ardelean@...log.com>
> > ---
> >  .../devicetree/bindings/net/adi,adin.yaml     | 76 +++++++++++++++++++
> >  MAINTAINERS                                   |  1 +
> >  2 files changed, 77 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/net/adi,adin.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/net/adi,adin.yaml
> > b/Documentation/devicetree/bindings/net/adi,adin.yaml
> > new file mode 100644
> > index 000000000000..86177c8fe23a
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/net/adi,adin.yaml
> > @@ -0,0 +1,76 @@
> > +# SPDX-License-Identifier: GPL-2.0+
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/net/adi,adin.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Analog Devices ADIN1200/ADIN1300 PHY
> > +
> > +maintainers:
> > +  - Alexandru Ardelean <alexandru.ardelean@...log.com>
> > +
> > +description: |
> > +  Bindings for Analog Devices Industrial Ethernet PHYs
> > +
> > +allOf:
> > +  - $ref: ethernet-phy.yaml#
> > +
> > +properties:
> > +  adi,rx-internal-delay-ps:
> > +    $ref: /schemas/types.yaml#/definitions/uint32
> > +    description: |
> > +      RGMII RX Clock Delay used only when PHY operates in RGMII mode with
> > +      internal delay (phy-mode is 'rgmii-id' or 'rgmii-rxid') in pico-seconds.
> > +    enum: [ 1600, 1800, 2000, 2200, 2400 ]
> > +    default: 2000
> 
> This doesn't actually do what you think. The '$ref' has to be under an
> 'allOf' to work. It's an oddity of json-schema. However, anything with
> a standard unit suffix already has a schema to define the type, so you
> don't need to here and can just drop $ref.

ack
will drop

> 
> > +
> > +  adi,tx-internal-delay-ps:
> > +    $ref: /schemas/types.yaml#/definitions/uint32
> > +    description: |
> > +      RGMII TX Clock Delay used only when PHY operates in RGMII mode with
> > +      internal delay (phy-mode is 'rgmii-id' or 'rgmii-txid') in pico-seconds.
> > +    enum: [ 1600, 1800, 2000, 2200, 2400 ]
> > +    default: 2000
> > +
> > +  adi,fifo-depth-bits:
> > +    $ref: /schemas/types.yaml#/definitions/uint32
> > +    description: |
> > +      When operating in RMII mode, this option configures the FIFO depth.
> > +    enum: [ 4, 8, 12, 16, 20, 24 ]
> > +    default: 8
> > +
> > +  adi,disable-energy-detect:
> > +    description: |
> > +      Disables Energy Detect Powerdown Mode (default disabled, i.e energy detect
> > +      is enabled if this property is unspecified)
> > +    type: boolean
> > +
> > +examples:
> > +  - |
> > +    ethernet {
> > +        #address-cells = <1>;
> > +        #size-cells = <0>;
> > +
> > +        phy-mode = "rgmii-id";
> > +
> > +        ethernet-phy@0 {
> > +            reg = <0>;
> > +
> > +            adi,rx-internal-delay-ps = <1800>;
> > +            adi,tx-internal-delay-ps = <2200>;
> > +        };
> > +    };
> > +  - |
> > +    ethernet {
> > +        #address-cells = <1>;
> > +        #size-cells = <0>;
> > +
> > +        phy-mode = "rmii";
> > +
> > +        ethernet-phy@1 {
> > +            reg = <1>;
> > +
> > +            adi,fifo-depth-bits = <16>;
> > +            adi,disable-energy-detect;
> > +        };
> > +    };
> > diff --git a/MAINTAINERS b/MAINTAINERS
> > index e8aa8a667864..fd9ab61c2670 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -944,6 +944,7 @@ L:  netdev@...r.kernel.org
> >  W:     http://ez.analog.com/community/linux-device-drivers
> >  S:     Supported
> >  F:     drivers/net/phy/adin.c
> > +F:     Documentation/devicetree/bindings/net/adi,adin.yaml
> > 
> >  ANALOG DEVICES INC ADIS DRIVER LIBRARY
> >  M:     Alexandru Ardelean <alexandru.ardelean@...log.com>
> > --
> > 2.20.1
> >