linux-kernel - Re: [PATCH v6 1/2] dt-bindings: usb: Add the binding example for the Genesys Logic GL3523 hub

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Message-ID: <2e688f4e-11d7-4f8e-b8ec-58f4a97304a8@linaro.org>
Date:   Fri, 8 Dec 2023 13:17:23 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Anand Moon <linux.amoon@...il.com>
Cc:     Rob Herring <robh@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Icenowy Zheng <uwu@...nowy.me>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        linux-amlogic@...ts.infradead.org,
        Conor Dooley <conor.dooley@...rochip.com>,
        linux-usb@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 1/2] dt-bindings: usb: Add the binding example for the
 Genesys Logic GL3523 hub

On 08/12/2023 12:19, Anand Moon wrote:
> Hi Krzysztof,
> 
> On Fri, 8 Dec 2023 at 13:14, Krzysztof Kozlowski
> <krzysztof.kozlowski@...aro.org> wrote:
>>
>> On 08/12/2023 01:24, Anand Moon wrote:
>>>>>>>
>>>>>>> If I move reset-gpios to required, I observe the below warning.
>>>>>>>
>>>>>>>   DTC_CHK Documentation/devicetree/bindings/usb/maxim,max33359.example.dtb
>>>>>>> /home/alarm/linux-amlogic-5.y-devel/Documentation/devicetree/bindings/usb/usb-device.example.dtb:
>>>>>>> hub@1: 'reset-gpio' is a required property
>>>>>>>         from schema $id: http://devicetree.org/schemas/usb/genesys,gl850g.yaml#
>>>>>>
>>>>>> Where are the properties defined? If you open the binding you see:
>>>>>> nowhere. You cannot define properties in some variant with "true".
>>>>>> Please define all of them in top-level and only narrow/constrain when
>>>>>> applicable.
>>>>>>
>>>>> What I meant is the example below, required meant applicable for both
>>>>> the binding
>>>>> But it shows me the above warning.
>>>>
>>>> My explanation stands... So again:
>>>>
>>>>>> Please define all of them in top-level and only narrow/constrain when
>>>>>> applicable.
>>>>
>>> Apologies, But I have tried this multiple times but have not been able
>>> to fix the device tree warning
>>
>> Did you document all properties in top-level "properties:" block?
>>
> Yes, I have,
> 
> Can you suggest a couple of examples to follow?
> I looked at some of the YAML files but could not fix my issue.

99% of bindings. Look also at example-schema.

You can also attach here complete patch for fast look / short review.

Best regards,
Krzysztof