linux-kernel - Re: [PATCH 04/11] dt-bindings: stm32: add st,stm32mp25 compatibles to the stm32 family

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Date:   Fri, 2 Jun 2023 14:26:16 +0200
From:   Alexandre TORGUE <alexandre.torgue@...s.st.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Conor Dooley <conor@...nel.org>
CC:     <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        Olof Johansson <olof@...om.net>, <soc@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-kernel@...r.kernel.org>, <linux-gpio@...r.kernel.org>
Subject: Re: [PATCH 04/11] dt-bindings: stm32: add st,stm32mp25 compatibles to
 the stm32 family

Hi Krzysztof

On 5/31/23 20:47, Krzysztof Kozlowski wrote:
> On 30/05/2023 10:39, Alexandre TORGUE wrote:
>> Hi Conor
>>
>> On 5/29/23 20:05, Conor Dooley wrote:
>>> On Mon, May 29, 2023 at 06:20:27PM +0200, Alexandre Torgue wrote:
>>>> STM32 family is extended by the addition of the STM32MP25 SoCs. It is composed
>>>> of 4 SoCs: STM32MP251, STM32MP253, STM32MP255 and STM32MP257.
>>>>
>>>> Signed-off-by: Alexandre Torgue <alexandre.torgue@...s.st.com>
>>>>
>>>> diff --git a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
>>>> index 4af5b8f4f803..7d7ca33d2e61 100644
>>>> --- a/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
>>>> +++ b/Documentation/devicetree/bindings/arm/stm32/stm32.yaml
>>>> @@ -161,6 +161,15 @@ properties:
>>>>              - const: phytec,phycore-stm32mp157c-som
>>>>              - const: st,stm32mp157
>>>>    
>>>> +      - items:
>>>> +          - const: st,stm32mp251
>>>> +      - items:
>>>> +          - const: st,stm32mp253
>>>> +      - items:
>>>> +          - const: st,stm32mp255
>>>> +      - items:
>>>> +          - const: st,stm32mp257
>>>
>>> I assume the slightly odd format is just to avoid churn when adding
>>> the board compatibles.
>>
>> Yes, exactly.
>>
> 
> I don't get it. How are you going to extend it? Or rather - what are you
> documenting here? If these are SoCs, then this is not valid. We do not
> allow these alone.
> 
> No, please drop it.

Ok. I will drop it in V2 and update binding patch which defines the 
STM32 EV1 board.

Thanks
Alex

> 
> Best regards,
> Krzysztof
>