Re: [PATCH 1/8] dt-bindings: display: panel: novatek,nt36672e: Document the reset GPIO polarity

[Vladimir Zapolskiy <vz@kernel.org>]

On 10/28/26 16:59, Krzysztof Kozlowski wrote:
> On 28/10/2026 15:56, Vladimir Zapolskiy wrote:
>>> We might fix it at some point, so not sure if it is worth documenting in
>>> the binding. And what about usage of this binding in other projects
>>> which implement it correctly?
>>>
>>
>> In the upstream there is only one user qcm6490-idp.dts, and changing
>> the polarity will be an ABI breaking change, unfortunately.
> 
> And all other projects?
> 

It might be a challenging task to check usage of "novatek,nt36672e"
compatible display panels in all other projects. I've asked about it:

* https://chatgpt.com/uc/6ae25571-2ef0-83ea-81e5-2522e70c4a93

The check gives this info:

1. Linux kernel - invalid GPIO polarity in the driver and qcm6490-idp.dts,
2. Android - invalid GPIO polarity in the copied driver and qcm6490-idp.dts,
3. FreeBSD - invalid GPIO polarity in the copied qcm6490-idp.dts, no driver.

Please let me know, if there are other projects to check. To my
understanding the RESET_N polarity cannot be corrected anymore,
and the best option is to clearly document a difference between
the device and its dt-binding documentation.

-- 
Best wishes,
Vladimir