Re: [PATCH RFC v2 0/3] pinctrl: add ACPI support to pin controller

[Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>]

On Wed, Nov 16, 2022 at 10:40:19AM +0000, Niyas Sait wrote:
> On 16/11/2022 09:56, Andy Shevchenko wrote:
> > The GPIO to pin mapping is done by GPIO ranges. This can be made up in the
> > driver or, IIRC, in DT (so in ACPI) by already registered properties).
> > 
> > Not sure, why you don't use them.
> 
> OK. I might have missed it.
> 
> In DT, gpio-ranges property is used to describe the mapping, I could not
> find equivalent property in GPIO ACPI properties -
> https://www.kernel.org/doc/html/latest/firmware-guide/acpi/gpio-properties.html

It's the same. You just need to check the code of GPIO library to make sure
that it uses fwnode / device property APIs, so it will be parsed in ACPI case
as well.

-- 
With Best Regards,
Andy Shevchenko