netdev - Re: [PATCH v7 4/6] dt-bindings: net: Add support StarFive dwmac

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Message-ID: <9038dba0-6f72-44a1-9f57-1c08b03b9c31@linaro.org>
Date:   Thu, 16 Mar 2023 09:03:52 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Guo Samin <samin.guo@...rfivetech.com>,
        linux-riscv@...ts.infradead.org, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Emil Renner Berthing <kernel@...il.dk>,
        Richard Cochran <richardcochran@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Peter Geis <pgwipeout@...il.com>,
        Yanhong Wang <yanhong.wang@...rfivetech.com>,
        Tommaso Merciai <tomm.merciai@...il.com>
Subject: Re: [PATCH v7 4/6] dt-bindings: net: Add support StarFive dwmac

On 16/03/2023 09:02, Guo Samin wrote:
> 
> 
> -------- 原始信息 --------
> 主题: Re: [PATCH v7 4/6] dt-bindings: net: Add support StarFive dwmac
> From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> 收件人: Samin Guo <samin.guo@...rfivetech.com>, linux-riscv@...ts.infradead.org, netdev@...r.kernel.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
> 日期: 2023/3/16
> 
>> On 16/03/2023 05:37, Samin Guo wrote:
>>> From: Yanhong Wang <yanhong.wang@...rfivetech.com>
>>>
>>> Add documentation to describe StarFive dwmac driver(GMAC).
>>>
>> Thank you for your patch. There is something to discuss/improve.
>>
>>> Signed-off-by: Yanhong Wang <yanhong.wang@...rfivetech.com>
>>> Signed-off-by: Samin Guo <samin.guo@...rfivetech.com>
>>> Tested-by: Tommaso Merciai <tomm.merciai@...il.com>
>>> ---
>>>  .../devicetree/bindings/net/snps,dwmac.yaml   |   1 +
>>>  .../bindings/net/starfive,jh7110-dwmac.yaml   | 130 ++++++++++++++++++
>>>  MAINTAINERS                                   |   6 +
>>>  3 files changed, 137 insertions(+)
>>>  create mode 100644 Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
>>>
>>> diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
>>> index e4519cf722ab..245f7d713261 100644
>>> --- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
>>> +++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
>>> @@ -91,6 +91,7 @@ properties:
>>>          - snps,dwmac-5.20
>>>          - snps,dwxgmac
>>>          - snps,dwxgmac-2.10
>>> +        - starfive,jh7110-dwmac
>>>  
>>>    reg:
>>>      minItems: 1
>>> diff --git a/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
>>> new file mode 100644
>>> index 000000000000..b59e6bd8201f
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
>>> @@ -0,0 +1,130 @@
>>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>>> +# Copyright (C) 2022 StarFive Technology Co., Ltd.
>>> +%YAML 1.2
>>> +---
>>> +$id: http://devicetree.org/schemas/net/starfive,jh7110-dwmac.yaml#
>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>> +
>>> +title: StarFive JH7110 DWMAC glue layer
>>> +
>>> +maintainers:
>>> +  - Emil Renner Berthing <kernel@...il.dk>
>>> +  - Samin Guo <samin.guo@...rfivetech.com>
>>> +
>>> +select:
>>> +  properties:
>>> +    compatible:
>>> +      contains:
>>> +        enum:
>>> +          - starfive,jh7110-dwmac
>>> +  required:
>>> +    - compatible
>>> +
>>> +properties:
>>> +  compatible:
>>> +    items:
>>> +      - enum:
>>> +          - starfive,jh7110-dwmac
>>> +      - const: snps,dwmac-5.20
>>> +
>>
>> reg:
>>   maxItems: 1
> 
>>
>>> +  clocks:
>>> +    items:
>>> +      - description: GMAC main clock
>>> +      - description: GMAC AHB clock
>>> +      - description: PTP clock
>>> +      - description: TX clock
>>> +      - description: GTX clock
>>> +
>>> +  clock-names:
>>> +    items:
>>> +      - const: stmmaceth
>>> +      - const: pclk
>>> +      - const: ptp_ref
>>> +      - const: tx
>>> +      - const: gtx
>>> +
>>
>> interrupts: ???
>>
> 
> Hi Krzysztof, 
> 
> snps,dwmac.yaml has defined the reg/interrupt/interrupt-names nodes,
> and the JH7110 SoC is also applicable.
> Maybe just add reg/interrupt/interrupt-names to the required ?

You need to constrain them.

> 
> 
>   required:
>     - compatible
> +   - reg
>     - clocks
>     - clock-names
> +   - interrupts
> +   - interrupt-names
>     - resets
>     - reset-names
Best regards,
Krzysztof