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

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Message-ID: <de4fa95e-4bc7-438a-94bb-4b31b1b89704@quicinc.com>
Date:   Sat, 18 Nov 2023 16:07:06 +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 8:43 PM, Krzysztof Kozlowski wrote:
> On 17/11/2023 12:20, Jie Luo wrote:
>>
>>
>> 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.
> 
> Then your patch is wrong as I said. You now affect other variants. I
> don't quite get your responses. Style of them suggests that you
> disagree, but you are not providing any relevant argument.

The clock arguments are provided in the later part as below. i will also
provide more detail clock names for the new added clocks for the ipq5332
platform in description.

   - if: 

       properties: 

         compatible: 

           contains: 

             enum: 

               - qcom,ipq5332-mdio 

     then: 

       properties: 

         clocks: 

           items: 

             - description: MDIO clock source frequency fixed to 100MHZ 

             - description: UNIPHY0 AHB clock source frequency fixed to 
100MHZ
             - description: UNIPHY0 SYS clock source frequency fixed to 
24MHZ
             - description: UNIPHY1 AHB clock source frequency fixed to 
100MHZ
             - description: UNIPHY1 SYS clock source frequency fixed to 
24MHZ
         clock-names: 

           items: 

             - const: gcc_mdio_ahb_clk 

             - const: gcc_uniphy0_ahb_clk 

             - const: gcc_uniphy0_sys_clk 

             - const: gcc_uniphy1_ahb_clk 

             - const: gcc_uniphy1_sys_clk
> 
>>
>> 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.
> 
> We still do not know your base and dtschema version.

The code base is the commit id:
5ba73bec5e7b0494da7fdca3e003d8b97fa932cd
<Add linux-next specific files for 20231114>

The dtschema version is as below.
dt-doc-validate --version
2023.9


> 
> 
> Best regards,
> Krzysztof
>