Re: [PATCH v2 13/13] arm64: defconfig: Enable I3C and SPD5118 hwmon

[Akhil R <akhilrajeev@nvidia.com>]

On Fri, 10 Apr 2026 09:18:48 +0200, Krzysztof Kozlowski wrote:
> On 10/04/2026 08:57, Guenter Roeck wrote:
>> On 4/9/26 23:39, Krzysztof Kozlowski wrote:
>>> On 09/04/2026 12:57, Akhil R wrote:
>>>> Add I3C subsystem support, DesignWare I3C master controller, and
>>>> SPD5118 hwmon sensor as modules to the defconfig and therefore
>>>> enable the support for SPD5118 sensor on SOCAMM found in NVIDIA
>>>> Vera platforms.
>>>
>>> git grep for "Vera" gave me zero results. Are you sure this is an
>>> upstream platform? Please point the DTS using this.
>>>
>>
>> I think this is an ACPI based system, or at least that is what Google search
>> tells me.
> 
> Thanks. Following Google Vera is either a "CPU" or entire architecture
> (at least that's how they call it), so it does not have SPD5118 sensor.

SOCAMM is a Memory Module. SPD5118, as it's Kconfig mentions, is a sensor
found within such memory modules. I didn't quite get why would you state
that the SOCAMM present in Vera architecture (or CPU) does not have
SPD5118 in it.

Pasting the below from the Vera Rubin product page [1] -
"NVIDIA Vera CPUs add enhanced serviceability with small-outline
compression-attached memory modules (SOCAMM) LPDDR5X and in-system tests
for the CPU cores."

[1]: https://www.nvidia.com/en-us/data-center/technologies/rubin/

> 
> 
> "Nvidia vera socamm" gives me something about "rubin". It's not me who
> should be guessing all this.
> 
> "nvidia vera socamm SPD5118" gives me even less, so justification is flaky.
> 
> To remind, this commit msg should convince why generic kernel for
> developers affecting all possible platforms - not end users, because
> they always use distro kernels - should enable these configs. And it
> should bring me clear rule what I can or cannot remove from defconfig,
> if in 2 years I come and start pruning it from symbols.

I found little details on what we should be adding in the defconfig. It
would help if you could share some guidance. Do you mean to say that the
defconfig should include only the configs which are necessary in
development platforms and not in end-products?


Regards,
Akhil