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[2/2] gpiolib: acpi: Add a quirk for Asus UM325UAZ

Message ID 20220719142142.247-2-mario.limonciello@amd.com
State Superseded
Headers show
Series [1/2] gpiolib: acpi: Add support to ignore programming an interrupt | expand

Commit Message

Mario Limonciello July 19, 2022, 2:21 p.m. UTC 
Asus UM325UAZ has GPIO 18 programmed as both an interrupt and a wake
source, but confirmed with internal team on this design this pin is
floating and shouldn't have been programmed. This causes lots of
spurious IRQs on the system and horrendous battery life.

Add a quirk to ignore attempts to program this pin on this system.

Reported-and-tested-by: Pavel Krc <reg.krn@pkrc.net>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216208
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
 drivers/gpio/gpiolib-acpi.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
diff mbox series

Patch

diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 375942d92d6f..2149713ea8f1 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -1586,6 +1586,20 @@  static const struct dmi_system_id gpiolib_acpi_quirks[] __initconst = {
 			.ignore_wake = "INT33FF:01@0",
 		},
 	},
+	{
+		/*
+		 * Interrupt storm caused from edge triggered floating pin
+		 * Found in BIOS UX325UAZ.300
+		 * https://bugzilla.kernel.org/show_bug.cgi?id=216208
+		 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "ZenBook UX325UAZ_UM325UAZ"),
+		},
+		.driver_data = &(struct acpi_gpiolib_dmi_quirk) {
+			.ignore_interrupt = "AMDI0030:00@18",
+		},
+	},
 	{} /* Terminating entry */
 };