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Message-ID: <35556392-3b9a-4997-b482-082dc2f9121f@linaro.org>
Date:   Mon, 30 Oct 2023 08:30:50 +0100
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Subject: Re: [PATCH v2 04/12] dt-bindings: net: starfive,jh7110-dwmac: Add
 JH7100 SoC compatible
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To:     Cristian Ciocaltea <cristian.ciocaltea@collabora.com>,
        "David S. Miller" <davem@davemloft.net>,
        Eric Dumazet <edumazet@google.com>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        Emil Renner Berthing <kernel@esmil.dk>,
        Samin Guo <samin.guo@starfivetech.com>,
        Paul Walmsley <paul.walmsley@sifive.com>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Alexandre Torgue <alexandre.torgue@foss.st.com>,
        Jose Abreu <joabreu@synopsys.com>,
        Maxime Coquelin <mcoquelin.stm32@gmail.com>,
        Richard Cochran <richardcochran@gmail.com>,
        Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc:     netdev@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
        linux-stm32@st-md-mailman.stormreply.com,
        linux-arm-kernel@lists.infradead.org, kernel@collabora.com
References: <20231029042712.520010-1-cristian.ciocaltea@collabora.com>
 <20231029042712.520010-5-cristian.ciocaltea@collabora.com>
 <e8f18634-7187-4e5a-a494-329c7c602fd2@linaro.org>
 <e86247b3-a6f4-44cf-90c4-583d850f6dd8@collabora.com>
From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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In-Reply-To: <e86247b3-a6f4-44cf-90c4-583d850f6dd8@collabora.com>
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Precedence: bulk

On 29/10/2023 23:15, Cristian Ciocaltea wrote:
> On 10/29/23 13:24, Krzysztof Kozlowski wrote:
>> On 29/10/2023 05:27, Cristian Ciocaltea wrote:
>>> The Synopsys DesignWare MAC found on StarFive JH7100 SoC is quite
>>> similar to the newer JH7110, but it requires only two interrupts and a
>>> single reset line.
>>>
>>> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
>>> ---
>>>  .../devicetree/bindings/net/snps,dwmac.yaml   |  1 +
>>>  .../bindings/net/starfive,jh7110-dwmac.yaml   | 74 +++++++++++++------
>>>  2 files changed, 54 insertions(+), 21 deletions(-)
>>>
>>> diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
>>> index a4d7172ea701..c1380ff1c054 100644
>>> --- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
>>> +++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
>>> @@ -95,6 +95,7 @@ properties:
>>>          - snps,dwmac-5.20
>>>          - snps,dwxgmac
>>>          - snps,dwxgmac-2.10
>>> +        - starfive,jh7100-dwmac
>>>          - starfive,jh7110-dwmac
>>>  
>>>    reg:
>>> diff --git a/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
>>> index 44e58755a5a2..70e35a3401f4 100644
>>> --- a/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
>>> +++ b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
>>> @@ -13,10 +13,14 @@ maintainers:
>>>  
>>>  properties:
>>>    compatible:
>>> -    items:
>>> -      - enum:
>>> -          - starfive,jh7110-dwmac
>>> -      - const: snps,dwmac-5.20
>>> +    oneOf:
>>> +      - items:
>>> +          - const: starfive,jh7100-dwmac
>>> +          - const: snps,dwmac
>>> +      - items:
>>> +          - enum:
>>> +              - starfive,jh7110-dwmac
>>> +          - const: snps,dwmac-5.20
>>
>> Why do you use different fallback?
> 
> AFAIK, dwmac-5.20 is currently only used by JH7110.

What is used by JH7000?

> 
>>>  
>>>    reg:
>>>      maxItems: 1
>>> @@ -37,23 +41,6 @@ properties:
>>>        - const: tx
>>>        - const: gtx
>>>  
>>> -  interrupts:
>>> -    minItems: 3
>>> -    maxItems: 3
>>> -
>>> -  interrupt-names:
>>> -    minItems: 3
>>> -    maxItems: 3
>>> -
>>> -  resets:
>>> -    minItems: 2
>>> -    maxItems: 2
>>
>> You just changed it in previous patches... So the previous code allowing
>> one item was correct?
> 
> I mentioned the possible use-cases in the previous email. So yes, JH7110
> requires 2 resets, while JH7100 just one.


Your previous patch does not make sense now...

Best regards,
Krzysztof