Re: [PATCH] gpio / ACPI: Allow shared GPIO event to be read via operation region

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Fri, Oct 30, 2015 at 11:02 AM, Mika Westerberg
<mika.westerberg@xxxxxxxxxxxxxxx> wrote:

> In Microsoft Surface3 the GPIO detecting lid state is shared between GPIO
> event and operation region. Below is simplied version of the DSDT from
> Surface3 including relevant parts:
(...)
> To be able to go through acpi_gpio->events list for operation region access
> we need to make sure the list is properly initialized whenever GPIO chip is
> registered.
>
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=106571
> Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>

I wonder what an operation region is, maybe it's something you can eat.
But I trust you Mika, so patch applied. Maybe I should get a surface, it
seems cool.

Yours,
Linus Walleij
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