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

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Date:   Thu, 16 Mar 2023 18:18:44 +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



-------- 原始信息 --------
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 09:28, 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: Guo Samin <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 09:15, Guo Samin wrote:
>>>>>>> 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?
>>>
>>> The interrupts on common binding are variable, so you need to constrain
>>> them - you have fixed number of them, right?
>>>
>>> Best regards,
>>> Krzysztof
>>>
>>
>> Yes, JH7110 fixed is 3 pcs. Thanks, I will constrain them.
> 
> Then just minItems: 3, maxItems: 3 here should be enough
> 
> Best regards,
> Krzysztof
> 

Hi Krzysztof,

Thank you for the suggestion. 
I'll change it like this in the next version, is right?


$ git diff
--- a/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
@@ -27,6 +27,9 @@ properties:
           - starfive,jh7110-dwmac
       - const: snps,dwmac-5.20
 
+  reg:
+    maxItems: 1
+
   clocks:
     items:
       - description: GMAC main clock
@@ -43,6 +46,14 @@ properties:
       - const: tx
       - const: gtx
 
+  interrupts:
+    minItems: 3
+    maxItems: 3
+
+  interrupt-names:
+    minItems: 3
+    maxItems: 3
+
   resets:
     items:
       - description: MAC Reset signal.
@@ -77,8 +88,11 @@ unevaluatedProperties: false
 
 required:
   - compatible
+  - reg
   - clocks
   - clock-names
+  - interrupts
+  - interrupt-names
   - resets
   - reset-names





Best regards,
Samin