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Date:   Thu, 30 Aug 2018 07:54:31 +0200
From:   Florian Eckert <>
To:     Piotr Król <>
Cc:     Andy Shevchenko <>,
        "open list:GPIO SUBSYSTEM" <>,
        Linus Walleij <>,
        Linux Kernel Mailing List <>
Subject: Re: [PATCH] gpio: Add driver for PC Engines APU2/APU3 GPIOs

On 2018-08-24 12:56, Piotr Król wrote:
> On 08/03/2018 09:08 PM, Andy Shevchenko wrote:
> Hi Andy,
> (...)
>>> +#define APU_FCH_ACPI_MMIO_BASE 0xFED80000
>>> +#define APU_FCH_GPIO_BASE      (APU_FCH_ACPI_MMIO_BASE + 0x1500)
>> Wow! Can we see ACPI tables for these boards? Care to share (via some
>> file share service) output of `acpidump -o tables.dat` ?
> Please find acpidump [1]. FYI I'm PC Engines firmware maintainer
> (firmware is coreboot based), so I can fix required things. I'm pretty
> sure that ACPI tables are not in best shape.

Thanks for the dump,

By the way I have seen that the driver
is using the acpi to get the mmio address. I think this is the way to go
to get the acpi mmio address in the gpio-apu driver as well.

What is the right "acpi_device_id" for the APU3?

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