Re: [PATCH v3 1/6] dt-binding: ARM: samsung: Add Samsung Exynos8855

[Ivaylo Ivanov]

On 7/6/26 6:44 AM, Alim Akhtar wrote:
> Hi Ivaylo,
> Thanks for your review. 

No problem :D

> 
>> -----Original Message-----
>> From: Ivaylo Ivanov <ivo.ivanov.ivanov1@xxxxxxxxx>
>> Sent: Monday, July 6, 2026 4:11 AM
>> To: Alim Akhtar <alim.akhtar@xxxxxxxxxxx>; krzk@xxxxxxxxxx;
>> peter.griffin@xxxxxxxxxx; robh@xxxxxxxxxx; conor+dt@xxxxxxxxxx;
>> linusw@xxxxxxxxxx
>> Cc: linux-samsung-soc@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
>> devicetree@xxxxxxxxxxxxxxx; linux-gpio@xxxxxxxxxxxxxxx;
>> hajun.sung@xxxxxxxxxxx
>> Subject: Re: [PATCH v3 1/6] dt-binding: ARM: samsung: Add Samsung
>> Exynos8855
>>
>> On 6/27/26 20:12, Alim Akhtar wrote:
>>> Add Samsung Exynos8855 smdk board to documentation
>>>
>>> Signed-off-by: Alim Akhtar <alim.akhtar@xxxxxxxxxxx>
>>> ---
>>>  .../devicetree/bindings/arm/samsung/samsung-boards.yaml     | 6 ++++++
>>>  1 file changed, 6 insertions(+)
>>>
>>> diff --git
>>> a/Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml
>>> b/Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml
>>> index 753b3ba1b607..273464400477 100644
>>> ---
>>> a/Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml
>>> +++ b/Documentation/devicetree/bindings/arm/samsung/samsung-
>> boards.yam
>>> +++ l
>>> @@ -235,6 +235,12 @@ properties:
>>>                - winlink,e850-96                 # WinLink E850-96
>>>            - const: samsung,exynos850
>>>
>>> +      - description: Exynos8855 based boards
>>> +        items:
>>> +          - enum:
>>> +              - samsung,exynos8855-smdk         # Samsung SMDK
>>> +          - const: samsung,exynos8855
>>
>> Is there any particular reason for using "exynos8855" rather than the
>> commercial name - exynos1580? We've already established using the latter
>> naming scheme as a convention (e.g. exynos3830 -> exynos850, exynos9830 ->
>> exynos990) rather than the development model numbers, so I don't think
>> breaking that will help anyone with the already painful model number confusion.
>>
> The reason for using Exynos8855 is that it comes from the chip-id register, which is RO register.
> And in my opinion it has to be chip-id, maintaining two names is confusing (as you also mentioned).

I see your point but I'm not sure whether exynos-based platforms like tensors
will follow this. Afaik GS101's development name is e9845. So there likely will
still be some deviation.

It's not really a fatal thing, just a nit imo because all bindings will have
to follow that for the upstreamed SoC, so non-revertable. But if maintainers
are okay with this, I'm happy to start using chip-id names for future contributions
too.

Best regards,
Ivaylo

> Yes, there were couple of deviation but let's come back to the "original" convention (which is to use chip-id).
> 
> @ Krzysztof, Peter 
> Any input on this? 
> 
>> Best regards,
>> Ivaylo
>>
>>> +
>>>        - description: Exynos8895 based boards
>>>          items:
>>>            - enum:
> 
>