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

[Mario Limonciello <superm1@kernel.org>]

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@kernel.org>>
> 
> On Fri, Aug 21, 2026 at 11:49 PM Mario Limonciello
> <mario.limonciello@amd.com> 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@gmail.com>
>>> ---
>>>    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 */
>>>    };
>>>
>>