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: <08ad71a0-daf1-4588-a97c-95f3ee5df84e@linaro.org>
Date:   Mon, 30 Oct 2023 15:45:33 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Parthiban.Veerasooran@...rochip.com
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

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.

>>
>>>
>>> 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?


Best regards,
Krzysztof