Re: [PATCH v3 0/4] Fix soc-button-array debounce
From: Andy Shevchenko
Date: Thu Jun 26 2025 - 10:43:04 EST
On Wed, Jun 25, 2025 at 04:58:09PM -0500, Mario Limonciello wrote:
> From: Mario Limonciello <mario.limonciello@xxxxxxx>
>
> I have some hardware in front of me that uses the soc-button-array
> driver but the power button doesn't work.
>
> Digging into it, it's because the ASL prescribes a debounce of 0 for
> the power button, but the soc-button-array driver hardcodes 50ms.
>
> Hardcoding it to what the ASL expects the power button works.
>
> I looked at the callpath into the GPIO core and I believe it's
> because the debounce value from _CRS is never programmed to the
> hardware the way that the GPIO gets setup.
>
> This series add that programming path and then sets the hardcoded
> value on on some quirked systems. Hopefully Hans can confirm this
> continues to work on the hardware that he originally developed the
> hardcoding for.
There is no a note about routing the patch in upstream. My proposal to take
GPIO ACPI library patch and provide and immutable tag for others.
--
With Best Regards,
Andy Shevchenko