linux-kernel - [PATCH] Input: i8042 - add noloop quirk for Acer P459-G2-M

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Message-ID: <20231128214851.1.Ibc66f1742765467808fb28a394f8f35af920aa49@changeid>
Date:   Tue, 28 Nov 2023 21:48:54 +0000
From:   Esther Shimanovich <eshimanovich@...omium.org>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     linux-input@...r.kernel.org,
        Esther Shimanovich <eshimanovich@...omium.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Jonathan Denose <jdenose@...omium.org>,
        Mattijs Korpershoek <mkorpershoek@...libre.com>,
        Werner Sembach <wse@...edocomputers.com>
Subject: [PATCH] Input: i8042 - add noloop quirk for Acer P459-G2-M

On the Acer P450-G2-M, after the user opens the laptop lid and the device
resumes from S3 deep sleep, the screen remains dark for a few seconds.
If the user presses a keyboard key while the screen is still dark, the
mouse and keyboard stop functioning.

To fix this bug, enable the noloop quirk.

Signed-off-by: Esther Shimanovich <eshimanovich@...omium.org>
---

 drivers/input/serio/i8042-acpipnpio.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/input/serio/i8042-acpipnpio.h b/drivers/input/serio/i8042-acpipnpio.h
index 028e45bd050bf..b81539bacb931 100644
--- a/drivers/input/serio/i8042-acpipnpio.h
+++ b/drivers/input/serio/i8042-acpipnpio.h
@@ -941,6 +941,14 @@ static const struct dmi_system_id i8042_dmi_quirk_table[] __initconst = {
 		},
 		.driver_data = (void *)(SERIO_QUIRK_NOPNP)
 	},
+	{
+		/* Acer TravelMate P459-G2-M */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate P459-G2-M"),
+		},
+		.driver_data = (void *)(SERIO_QUIRK_NOLOOP)
+	},
 	{
 		/* ULI EV4873 - AUX LOOP does not work properly */
 		.matches = {
-- 
2.43.0.rc1.413.gea7ed67945-goog