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

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Message-ID: <d2bb7fa5-206f-2059-bde0-b65e1acc44de@starfivetech.com>
Date:   Thu, 16 Mar 2023 16:15:06 +0800
From:   Guo Samin <samin.guo@...rfivetech.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        <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



Re: [PATCH v7 4/6] dt-bindings: net: Add support StarFive dwmac
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
data: 2023/3/16

> 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.


I see. I will add reg constraints in the next version, thanks.

I have one more question, the interrupts/interrup-names of JH7110 SoC's gmac are exactly the same as snps,dwmac.yaml,
do these also need to be constrained?


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