Re: [PATCH v1] ACPI: Documentation: driver-api: Disapprove of using ACPI drivers

[Armin Wolf]

Am 05.01.26 um 16:50 schrieb Andy Shevchenko:

> On Mon, Jan 05, 2026 at 02:47:30PM +0100, Greg Kroah-Hartman wrote:
> > On Mon, Jan 05, 2026 at 12:25:04PM +0100, Rafael J. Wysocki wrote:
> > Documenting this is fine, but really, just moving all of the existing
> > drivers to not use this and deleting the api entirely might be simplest.
> > Looks like the only "new" acpi drivers that show up are in the
> > platform/x86/ subsystem, so just tell the maintainers there not to take
> > any new ones?
> I believe that with or without documentation this will take a few cycles
> to get rid of (as there are more than just the PDx86 being involved as of
> today). Also there were (and might be in the future) a few attempts to convert
> in the opposite direction, i.e. from platform to ACPI driver. Doing something
> temporary for a few cycles is okay, no? From my point of view it helps avoiding
> the above mentioned cases.

I agree with that. Additionally, there might be out-of-tree ACPI drivers that
people might want to upstream, so having this piece of documentation might give
them a hint that ACPI drivers are going to disappear in the future.

Thanks,
Armin Wolf