Re: [PATCH v2 2/2] gpio: aggregator: add gpio-aggregator DT compatible

On 11/02/2026 22:49, James Hilliard wrote:

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Regardless of the DT bindings - this change is perfectly fine. We do

You cannot have compatible without DT bindings, so this alone is not
"perfectly fine". Maybe you wanted platform_device_id entry for
ACPI/legacy/MFD devices?

Sure you can, you just can't put it into upstream devicetree sources.
We have had a compatible for gpio-sim for testing purposes for years.
Why would it be illegal to enable matching of platform drivers over DT
for testing purposes?

The primary issue is undocumented ones show up in 'make
dt_compatible_check'. I would like that to be warning free.

Would adding it here make sense?
https://github.com/torvalds/linux/blob/v6.19/Documentation/devicetree/bindings/incomplete-devices.yaml#L243-L245

What would you like to achieve with that? The binding patch did not have
rationale why do we want it and here is the same question - what sort of
problem is being solved by adding it to incomplete (so wrong) devices?


Best regards,
Krzysztof