Linux GPIO subsystem development
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From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Marco Scardovi <scardracs@disroot.org>,
	Mika Westerberg <westeri@kernel.org>,
	Linus Walleij <linusw@kernel.org>,
	Bartosz Golaszewski <brgl@kernel.org>,
	Mario Limonciello <mario.limonciello@amd.com>,
	linux-gpio@vger.kernel.org, linux-acpi@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] gpiolib: acpi: Add quirk for ASUS ROG Strix G614 series
Date: Tue, 16 Jun 2026 12:24:51 +0200	[thread overview]
Message-ID: <20260616102451.GC2990@black.igk.intel.com> (raw)
In-Reply-To: <ajEeLL5u3hf7lvWD@ashevche-desk.local>

On Tue, Jun 16, 2026 at 12:58:04PM +0300, Andy Shevchenko wrote:
> On Tue, Jun 16, 2026 at 11:43:56AM +0200, Marco Scardovi wrote:
> 
> ...
> 
> > > What is this interrupt for? Touchpad?
> > 
> > It is an ACPI event interrupt on the AMD GPIO controller (AMDI0030).
> > Specifically, it triggers on pin 21, appearing in /proc/interrupts as
> > "amd_gpio 21 ACPI:Event" and as you guessed it is the touchpad.
> > 
> > Previously, using "gpiolib_acpi.ignore_interrupt=AMDI0030:00@21" or
> > "gpiolib_acpi.run_edge_events_on_boot=0" as a boot parameter successfully
> > bypassed the 36-second delay, which confirms this specific pin/handler is the
> > culprit stalling the boot process.
> 
> Mika, do you see any problems with disabled (deferred?) interrupt for this type
> of event? I think it might break the suspend-resume (on touchpad event). Also
> do you remember if we ever had touchpad event to be ActiveBoth?

For starters, why this is ACPI event in the first place? The AML is not
supposed to use the touchpad.

Touchpad should be using just regular GpioInt(). Does it still work after
this patch? If yes then I think this is definitely okay.

  reply	other threads:[~2026-06-16 10:24 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-16  9:08 [PATCH] gpiolib: acpi: Add quirk for ASUS ROG Strix G614 series Marco Scardovi
2026-06-16  9:31 ` Andy Shevchenko
2026-06-16  9:43   ` Marco Scardovi
2026-06-16  9:58     ` Andy Shevchenko
2026-06-16 10:24       ` Mika Westerberg [this message]
2026-06-16 10:58         ` Marco Scardovi
2026-06-16 11:04           ` Andy Shevchenko

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