linux-kernel - [PATCH] gpiolib: acpi: Add quirk for Dell Precision 7780

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Message-ID: <20251205230724.2374682-1-safinaskar@gmail.com>
Date: Fri,  5 Dec 2025 22:32:42 +0000
From: Askar Safin <safinaskar@...il.com>
To: Mika Westerberg <westeri@...nel.org>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...nel.org>,
	linux-gpio@...r.kernel.org,
	linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: regressions@...ts.linux.dev,
	Dell.Client.Kernel@...l.com,
	Mario Limonciello <superm1@...nel.org>,
	patches@...ts.linux.dev,
	Askar Safin <safinaskar@...omail.com>,
	stable@...r.kernel.org
Subject: [PATCH] gpiolib: acpi: Add quirk for Dell Precision 7780

Dell Precision 7780 often wakes up on its own from suspend. Sometimes
wake up happens immediately (i. e. within 7 seconds), sometimes it happens
after, say, 30 minutes.

Fixes: 1796f808e4bb ("HID: i2c-hid: acpi: Stop setting wakeup_capable")
Reported-by: Askar Safin <safinaskar@...omail.com>
Link: https://lore.kernel.org/linux-i2c/197ae95ffd8.dc819e60457077.7692120488609091556@zohomail.com/
Cc: <stable@...r.kernel.org>
Tested-by: Askar Safin <safinaskar@...il.com>
Signed-off-by: Askar Safin <safinaskar@...il.com>
---
 drivers/gpio/gpiolib-acpi-quirks.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/gpio/gpiolib-acpi-quirks.c b/drivers/gpio/gpiolib-acpi-quirks.c
index 7b95d1b03361..a0116f004975 100644
--- a/drivers/gpio/gpiolib-acpi-quirks.c
+++ b/drivers/gpio/gpiolib-acpi-quirks.c
@@ -370,6 +370,28 @@ static const struct dmi_system_id gpiolib_acpi_quirks[] __initconst = {
 			.ignore_wake = "ASCP1A00:00@8",
 		},
 	},
+	{
+		/*
+		 * Spurious wakeups, likely from touchpad controller
+		 * Dell Precision 7780
+		 * Found in BIOS 1.24.1
+		 *
+		 * Found in touchpad firmware, installed by Dell Touchpad Firmware Update Utility version 1160.4196.9, A01
+		 * ( Dell-Touchpad-Firmware-Update-Utility_VYGNN_WIN64_1160.4196.9_A00.EXE ),
+		 * released on 11 Jul 2024
+		 *
+		 * https://lore.kernel.org/linux-i2c/197ae95ffd8.dc819e60457077.7692120488609091556@zohomail.com/
+		 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_FAMILY, "Precision"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Precision 7780"),
+			DMI_MATCH(DMI_BOARD_NAME, "0C6JVW"),
+		},
+		.driver_data = &(struct acpi_gpiolib_dmi_quirk) {
+			.ignore_wake = "VEN_0488:00@355",
+		},
+	},
 	{} /* Terminating entry */
 };
 
base-commit: 7d0a66e4bb9081d75c82ec4957c50034cb0ea449 (v6.18)
-- 
2.47.3