Re: [PATCH v1 1/1] gpio: exar: Allow IO port access

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Mon, Oct 17, 2022 at 7:05 PM Andy Shevchenko
<andriy.shevchenko@xxxxxxxxxxxxxxx> wrote:

> It's possible that PCI device can provide an IO port resource for
> the device. regmap MMIO currently uses MMIO by default. With an
> additional flag we enable support for IO port accesses.
>
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>

Looks clever to me!
Acked-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
I would let William have a look at it as well, as he's worked extensively
with port-mapped I/O.

Yours,
Linus Walleij