From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Subject: Re: [PATCH] pinctrl: cherryview: Add a quirk to make Acer Chromebook
 keyboard work again
Date: Thu, 6 Apr 2017 16:18:24 +0300
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To: Marc Zyngier <marc.zyngier@arm.com>
Cc: Linus Walleij <linus.walleij@linaro.org>, Grant Likely <grant.likely@linaro.org>, Thomas Gleixner <tglx@linutronix.de>, Heikki Krogerus <heikki.krogerus@linux.intel.com>, Adam S Levy <theadamlevy@gmail.com>, Dmitry Torokhov <dmitry.torokhov@gmail.com>, "linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>

On Thu, Apr 06, 2017 at 12:05:28PM +0100, Marc Zyngier wrote:
> > There is a proper way to use GPIOs as interrupts in ACPI, namely GpioInt
> > resource but it has not been used in that particular machine for some
> > reason.
> 
> OK, that explains it. One thing you could try would be to allocate the
> domain as a legacy one, which allows you to specify the virtual
> interrupt range you require. Not sure that's any better though.

Yeah, then I would have to add a whole bunch of code to handle custom
irqdomain just to support this one machine (fingers crossed that it is
limited to only this particular machine).

If no objections, I would rather stick to the approach used in this
patch. I will just update the DMI strings to include BIOS version/date.