[PATCH v2 1/1] gpiolib: acpi: Add quirk for ASUS ROG Strix G16 G614 series

[Marco Scardovi]

ASUS ROG Strix G16 G614 series laptops experience a long boot delay of
approximately 36 seconds.

On these laptops, the firmware leaves the touchpad's ActiveBoth GPIO
line asserted (logic low) at boot. Per the boot-time initial-state logic,
an ActiveBoth interrupt found low is replayed once to sync its initial state,
which calls the handler synchronously in the probe path. On these laptops
that interrupt handler is slow/hanging, so the synchronous call blocks for
~36s and stalls boot.

The touchpad itself is driven by the i2c-hid driver using a standard
GpioInt() resource defined in the touchpad device's _CRS method. The ACPI
event handler on pin 21 is distinct from this and is not required for the
touchpad's initialization or runtime operation.

Commit 3bb62e3f99a5 ("gpiolib: acpi: Only trigger ActiveBoth interrupts
on boot") restricted the boot-time replay to ActiveBoth interrupts that are
asserted (low). The pin on ASUS ROG Strix G16 G614 series laptops meets
exactly that condition, which is why it still triggers.

Fix the delay by adding a DMI quirk to set no_edge_events_on_boot to true
for the ASUS ROG Strix G16 G614 family. This prevents the boot-time
trigger of this ACPI event handler without affecting the touchpad driver
or disabling the handler for post-boot events.

Assisted-by: Antigravity:gemini-3.5-flash
Signed-off-by: Marco Scardovi <scardracs@xxxxxxxxxxx>
---
 drivers/gpio/gpiolib-acpi-quirks.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/gpio/gpiolib-acpi-quirks.c b/drivers/gpio/gpiolib-acpi-quirks.c
index a0116f004975..3cd4cd27808a 100644
--- a/drivers/gpio/gpiolib-acpi-quirks.c
+++ b/drivers/gpio/gpiolib-acpi-quirks.c
@@ -392,6 +392,21 @@ static const struct dmi_system_id gpiolib_acpi_quirks[] __initconst = {
 			.ignore_wake = "VEN_0488:00@355",
 		},
 	},
+	{
+		/*
+		 * ASUS ROG Strix G16 G614 series laptops experience a long boot
+		 * delay (approx. 36 seconds) because the touchpad's ActiveBoth
+		 * GPIO interrupt handler (TP_ATTN#) stalls/hangs during boot
+		 * initialization.
+		 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "ROG Strix G16 G614"),
+		},
+		.driver_data = &(struct acpi_gpiolib_dmi_quirk) {
+			.no_edge_events_on_boot = true,
+		},
+	},
 	{} /* Terminating entry */
 };
 
-- 
2.54.0