Re: [PATCH] gpiolib: acpi: Add ignore_wake quirk for ASUS ZenBook UX425UA_UM425UA

[Mario Limonciello]

On 8/21/26 16:46, Aviv wrote:
> Hi Mario,
>
> Nothing is physically connected to GPP3. The bridge (00:02.1 /
> \_SB.PCI0.GPP3) is unpopulated on this board (the ZenBook UX425UA has
> no Ethernet or secondary PCIe devices there).
>
> The DSDT seems to have leftover definitions for RTL8/RUSB on GPP3 from
> a shared BIOS base, and routes GPIO pin 24 to it in _EVT, causing
> phantom wake events during s2idle.
>
> Here is the acpidump:
> https://gist.github.com/vaknin/142f5cbad15958e9025cd81960114f6e
>
> Thanks,
> Kivan

Thanks.  The dump agrees with your assessment.

Reviewed-by: Mario Limonciello (AMD) <superm1@xxxxxxxxxx>>
> On Fri, Aug 21, 2026 at 11:49 PM Mario Limonciello
> <mario.limonciello@xxxxxxx> wrote:
> > What is connected to this GPP3?
> >
> > Can you please share your acpidump somewhere?
> >
> > On 8/21/26 02:06, Kivan wrote:
> > > The ASUS ZenBook UX425UA_UM425UA (with AMD Ryzen 7 5700U SoC) fails
> > > to stay suspended in s2idle (Modern Standby), prematurely waking
> > > after 1-3 seconds with 0% hardware sleep achieved.
> > >
> > > In the laptop's ACPI SSDT tables (SSDT15), GPIO Pin 24 (hex 0x18) is
> > > defined in _AEI as ExclusiveAndWake targeting the PCIe bridge device
> > > \_SB.PCI0.GPP3:
> > >
> > >       GpioInt (Edge, ActiveLow, ExclusiveAndWake, PullNone, 0x0000,
> > >                "\\_SB.GPIO", ...) { 0x0018 }
> > >
> > > When the SoC powers down PCIe root ports into low-power states during
> > > s2idle, an electrical edge transition triggers a spurious wake interrupt
> > > on GPIO Pin 24. This signals the AMD GPIO controller (AMDI0030:00 / IRQ 7
> > > via pinctrl_amd), aborting sleep across the system.
> > >
> > > Booting with kernel parameter "gpiolib_acpi.ignore_wake=AMDI0030:00@24"
> > > completely resolves the issue: amd_gpio reports ignoring the wakeup on
> > > pin 24, and interrupt counts in /proc/interrupts remain at 0 during sleep
> > > cycles, allowing uninterrupted s2idle until intentionally woken by the
> > > user.
> > >
> > > Add a DMI quirk entry to ignore wake events on AMDI0030:00@24 for this
> > > system.
> > >
> > > Signed-off-by: Kivan <vaknins33@xxxxxxxxx>
> > > ---
> > >    drivers/gpio/gpiolib-acpi-quirks.c | 13 +++++++++++++
> > >    1 file changed, 13 insertions(+)
> > >
> > > diff --git a/drivers/gpio/gpiolib-acpi-quirks.c b/drivers/gpio/gpiolib-acpi-quirks.c
> > > index a0116f0..dd4db58 100644
> > > --- a/drivers/gpio/gpiolib-acpi-quirks.c
> > > +++ b/drivers/gpio/gpiolib-acpi-quirks.c
> > > @@ -392,6 +392,19 @@ static const struct dmi_system_id gpiolib_acpi_quirks[] __initconst = {
> > >                        .ignore_wake = "VEN_0488:00@355",
> > >                },
> > >        },
> > > +     {
> > > +             /*
> > > +              * Spurious wakeups from GPP3 PCIe bridge interrupt
> > > +              * Found in BIOS UX425UA.301
> > > +              */
> > > +             .matches = {
> > > +                     DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
> > > +                     DMI_MATCH(DMI_PRODUCT_NAME, "ZenBook UX425UA_UM425UA"),
> > > +             },
> > > +             .driver_data = &(struct acpi_gpiolib_dmi_quirk) {
> > > +                     .ignore_wake = "AMDI0030:00@24",
> > > +             },
> > > +     },
> > >        {} /* Terminating entry */
> > >    };