linux-kernel - Re: [PATCH 9/9] dt-bindings: net: ipq4019-mdio: Document ipq5332 platform

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Message-ID: <386fcee0-1eab-4c0b-8866-a67821a487ee@quicinc.com>
Date:   Fri, 17 Nov 2023 19:20:44 +0800
From:   Jie Luo <quic_luoj@...cinc.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <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>, <andrew@...n.ch>, <hkallweit1@...il.com>,
        <linux@...linux.org.uk>, <robert.marko@...tura.hr>
CC:     <linux-arm-msm@...r.kernel.org>, <netdev@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <quic_srichara@...cinc.com>
Subject: Re: [PATCH 9/9] dt-bindings: net: ipq4019-mdio: Document ipq5332
 platform



On 11/17/2023 6:40 PM, Krzysztof Kozlowski wrote:
> On 17/11/2023 11:36, Jie Luo wrote:
>>>>      clocks:
>>>> -    items:
>>>> -      - description: MDIO clock source frequency fixed to 100MHZ
>>>> +    minItems: 1
>>>> +    maxItems: 5
>>>> +    description:
>>>
>>> Doesn't this make all other variants with incorrect constraints?
>>
>> There are 5 clock items, the first one is the legacy MDIO clock, the
>> other clocks are new added for ipq5332 platform, will describe it more
>> clearly in the next patch set.
> 
> OTHER variants. Not this one.

The change here is for the clock number added for the ipq5332 platform,
the other platforms still use only legacy MDIO clock.

so i add minItems  and maxItems, i will check other .yaml files for the
reference.

> 
>>
>>>
>>>> +      MDIO system clock frequency fixed to 100MHZ, and the GCC uniphy
>>>> +      clocks enabled for resetting ethernet PHY.
>>>>    
>>>>      clock-names:
>>>> -    items:
>>>> -      - const: gcc_mdio_ahb_clk
>>>> +    minItems: 1
>>>> +    maxItems: 5
>>>> +
>>>> +  phy-reset-gpio:
>>>
>>> No, for multiple reasons. It's gpios first of all. Where do you see such
>>> property? Where is the existing definition?
>>
>> will remove this property, and update to use the exited PHY GPIO reset.
>>
>>>
>>> Then it is "reset-gpios" if this is MDIO. Why do you put phy properties
>>> in MDIO?
>>>
>>>> +    minItems: 1
>>>> +    maxItems: 3
>>>> +    description:
>>>> +      GPIO used to reset the PHY, each GPIO is for resetting the connected
>>>> +      ethernet PHY device.
>>>> +
>>>> +  phyaddr-fixup:
>>>> +    description: Register address for programing MDIO address of PHY devices
>>>
>>> You did not test code which you sent.
>>
>> Hi Krzysztof,
>> This patch is passed with the following command in my workspace.
>> i will upgrade and install yamllint to make sure there is no
>> warning reported anymore.
>>
>> make dt_bg_check
> 
> No clue what's this, but no, I do not believe you tested it at all. It's
> not about yamllint. It's was not tested. Look at errors reported on
> mailing list.
> 
>> DT_SCHEMA_FILES=Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml
> 

Hi Krzysztof,
Here is the output when i run the dt check with this patch applied in my 
workspace, md64 is the alias for compiling the arm64 platform.

md64 dt_binding_check 
DT_SCHEMA_FILES=Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.yaml
warning: python package 'yamllint' not installed, skipping
   CHKDT   Documentation/devicetree/bindings/processed-schema.json
   SCHEMA  Documentation/devicetree/bindings/processed-schema.json
   DTEX 
Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.example.dts
   DTC_CHK 
Documentation/devicetree/bindings/net/qcom,ipq4019-mdio.example.dtb


> 
> Best regards,
> Krzysztof
>