Re: [PATCH 6/6] arm64: defconfig: make Tegra238 and Tegra264 Pinctrl a loadable module

[Krzysztof Kozlowski]

On 13/04/2026 11:49, Jon Hunter wrote:
>>>> index dd1ac01ee29b..f525670d3b84 100644
>>>> --- a/arch/arm64/configs/defconfig
>>>> +++ b/arch/arm64/configs/defconfig
>>>> @@ -711,6 +711,8 @@ CONFIG_PINCTRL_SC8280XP_LPASS_LPI=m
>>>>   CONFIG_PINCTRL_SM8550_LPASS_LPI=m
>>>>   CONFIG_PINCTRL_SM8650_LPASS_LPI=m
>>>>   CONFIG_PINCTRL_SOPHGO_SG2000=y
>>>> +CONFIG_PINCTRL_TEGRA238=m
>>>> +CONFIG_PINCTRL_TEGRA264=m
>>>
>>> No, you just added as module. Why do we want them in upstream defconfig?
>>>
>>> Standard question, already asked Nvidia more than once.
>>
>> Yes :-)
>>
>> Prathamesh, what we need to do is ...
>>
>> 1. Add a patch to populate the pinctrl DT nodes for Tegra264 device.
>> 2. In this patch, only enable pinctrl for Tegra264 because we are
>>     lacking an upstream board for Tegra238 for that moment. In the commit
>>     message we should add a comment to indicate with Tegra264 platform is
>>     using this.
> 
> Thinking about this some more, I think I would prefer that we skip the 
> defconfig patch and just add ...
> 
>   default m if ARCH_TEGRA_238_SOC
> 
>   default m if ARCH_TEGRA_264_SOC
> 
> ... in the respective Kconfig files for the drivers.


I support this, I am trying to do something similar to Qualcomm. None of
core SoC drivers should become a question to the user. We want one
multiplatform image in general, so whoever chooses ARCH_TEGRA or
ARCH_QCOM should get everything (while still being able to disable if
needed).

Best regards,
Krzysztof