linux-kernel - Re: [PATCH net-next v2 9/9] dt-bindings: net: add Microchip's LAN865X 10BASE-T1S MACPHY

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Message-ID: <4e71bdff-0a77-4039-aa29-4038091a1ad7@microchip.com>
Date:   Thu, 2 Nov 2023 13:31:38 +0000
From:   <Parthiban.Veerasooran@...rochip.com>
To:     <krzysztof.kozlowski@...aro.org>
CC:     <netdev@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-doc@...r.kernel.org>,
        <Horatiu.Vultur@...rochip.com>, <Woojung.Huh@...rochip.com>,
        <Nicolas.Ferre@...rochip.com>, <UNGLinuxDriver@...rochip.com>,
        <Thorsten.Kummermehr@...rochip.com>, <davem@...emloft.net>,
        <edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>,
        <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        <conor+dt@...nel.org>, <corbet@....net>,
        <Steen.Hegelund@...rochip.com>, <rdunlap@...radead.org>,
        <horms@...nel.org>, <casper.casan@...il.com>, <andrew@...n.ch>
Subject: Re: [PATCH net-next v2 9/9] dt-bindings: net: add Microchip's LAN865X
 10BASE-T1S MACPHY

Hi Krzysztof

On 30/10/23 8:15 pm, Krzysztof Kozlowski wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> On 30/10/2023 14:16, Parthiban.Veerasooran@...rochip.com wrote:
>> Hi Krzysztof,
>>
>> On 24/10/23 1:33 pm, Krzysztof Kozlowski wrote:
>>> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>>>
>>> On 23/10/2023 17:46, Parthiban Veerasooran wrote:
>>>> Add DT bindings for Microchip's LAN865X 10BASE-T1S MACPHY. The LAN8650/1
>>>> combines a Media Access Controller (MAC) and an Ethernet PHY to enable
>>>> 10BASE‑T1S networks. The Ethernet Media Access Controller (MAC) module
>>>> implements a 10 Mbps half duplex Ethernet MAC, compatible with the IEEE
>>>> 802.3 standard and a 10BASE-T1S physical layer transceiver integrated
>>>> into the LAN8650/1. The communication between the Host and the MAC-PHY is
>>>> specified in the OPEN Alliance 10BASE-T1x MACPHY Serial Interface (TC6).
>>>
>>> It does not look like you tested the bindings, at least after quick
>>> look. Please run `make dt_binding_check` (see
>>> Documentation/devicetree/bindings/writing-schema.rst for instructions).
>>> Maybe you need to update your dtschema and yamllint.
>> Sorry, somehow I missed doing this check. Will fix this in the next
>> revision.
> 
> Please also build your driver.
Didn't see any error in the driver compilation.
> 
>>>
>>>>
>>>> Signed-off-by: Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>
>>>> ---
>>>>    .../bindings/net/microchip,lan865x.yaml       | 101 ++++++++++++++++++
>>>>    MAINTAINERS                                   |   1 +
>>>>    2 files changed, 102 insertions(+)
>>>>    create mode 100644 Documentation/devicetree/bindings/net/microchip,lan865x.yaml
>>>>
>>>> diff --git a/Documentation/devicetree/bindings/net/microchip,lan865x.yaml b/Documentation/devicetree/bindings/net/microchip,lan865x.yaml
>>>> new file mode 100644
>>>> index 000000000000..974622dd6846
>>>> --- /dev/null
>>>> +++ b/Documentation/devicetree/bindings/net/microchip,lan865x.yaml
>>>> @@ -0,0 +1,101 @@
>>>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>>>> +%YAML 1.2
>>>> +---
>>>> +$id: http://devicetree.org/schemas/net/microchip,lan865x.yaml#
>>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>>> +
>>>> +title: Microchip LAN8650/1 10BASE-T1S MACPHY Ethernet Controllers
>>>> +
>>>> +maintainers:
>>>> +  - Parthiban Veerasooran <parthiban.veerasooran@...rochip.com>
>>>> +
>>>> +description:
>>>> +  The LAN8650/1 combines a Media Access Controller (MAC) and an Ethernet
>>>> +  PHY to enable 10BASE‑T1S networks. The Ethernet Media Access Controller
>>>> +  (MAC) module implements a 10 Mbps half duplex Ethernet MAC, compatible
>>>> +  with the IEEE 802.3 standard and a 10BASE-T1S physical layer transceiver
>>>> +  integrated into the LAN8650/1. The communication between the Host and
>>>> +  the MAC-PHY is specified in the OPEN Alliance 10BASE-T1x MACPHY Serial
>>>> +  Interface (TC6).
>>>> +
>>>> +  Specifications about the LAN8650/1 can be found at:
>>>> +    https://www.microchip.com/en-us/product/lan8650
>>>> +
>>>> +allOf:
>>>> +  - $ref: ethernet-controller.yaml#
>>>> +
>>>> +properties:
>>>> +  compatible:
>>>> +    const: microchip,lan865x
>>>
>>> No wildcards in compatibles.
>> Ah ok missed it. So it will become like below isn't it?
>>
>> properties:
>>     compatible:
>>       enum:
>>         - microchip,lan8650
>>         - microchip,lan8651
> 
> Rather enum for lan8650 and items for lan8651 with fallback. Aren't they
> compatible, since you wanted to use wildcard?
So do you mean like below?

properties:
   compatible:
     oneOf:
       - items:
           - const: microchip,lan8650
           - const: microchip,lan8651
       - enum:
           - microchip,lan8650

Best Regards,
Parthiban V
> 
> 
> Best regards,
> Krzysztof
>