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

From: Kivan

Date: Fri Aug 21 2026 - 03:10:16 EST


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 */
};

--
2.55.0