linux-kernel - [PATCH 2/2] Input: i8042 - add TUXEDO devices to i8042 quirk tables for partial fix

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Message-Id: <20220708161005.1251929-3-wse@tuxedocomputers.com>
Date:   Fri,  8 Jul 2022 18:10:05 +0200
From:   Werner Sembach <wse@...edocomputers.com>
To:     dmitry.torokhov@...il.com, hdegoede@...hat.com, tiwai@...e.de,
        samuel@...oj.net, linux-input@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] Input: i8042 - add TUXEDO devices to i8042 quirk tables for partial fix

A lot of modern Clevo barebones have touchpad and/or keyboard issues after
suspend fixable with nomux + reset + noloop + nopnp. Luckily, none of them
have an external PS/2 port so this can safely be set for all of them.

I'm not entirely sure if every device listed really needs all four quirks,
but after testing and production use. No negative effects could be
observed when setting all four.

Setting SERIO_QUIRK_NOMUX or SERIO_QUIRK_RESET_ALWAYS on the Clevo N150CU
and the Clevo NHxxRZQ makes the keyboard very laggy for ~5 seconds after
boot and sometimes also after resume. However both are required for the
keyboard to not fail completely sometimes after boot or resume.

Signed-off-by: Werner Sembach <wse@...edocomputers.com>
Cc: stable@...r.kernel.org
---
 drivers/input/serio/i8042-x86ia64io.h | 28 +++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 5204a7dd61d4..9dc0266e5168 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -1107,6 +1107,20 @@ static const struct dmi_system_id i8042_dmi_quirk_table[] __initconst = {
 		.driver_data = (void *)(SERIO_QUIRK_NOMUX | SERIO_QUIRK_RESET_ALWAYS |
 					SERIO_QUIRK_NOLOOP | SERIO_QUIRK_NOPNP)
 	},
+	{
+		/*
+		 * Setting SERIO_QUIRK_NOMUX or SERIO_QUIRK_RESET_ALWAYS makes
+		 * the keyboard very laggy for ~5 seconds after boot and
+		 * sometimes also after resume.
+		 * However both are required for the keyboard to not fail
+		 * completely sometimes after boot or resume.
+		 */
+		.matches = {
+			DMI_MATCH(DMI_BOARD_NAME, "N150CU"),
+		},
+		.driver_data = (void *)(SERIO_QUIRK_NOMUX | SERIO_QUIRK_RESET_ALWAYS |
+					SERIO_QUIRK_NOLOOP | SERIO_QUIRK_NOPNP)
+	},
 	{
 		.matches = {
 			DMI_MATCH(DMI_BOARD_NAME, "NH5xAx"),
@@ -1114,6 +1128,20 @@ static const struct dmi_system_id i8042_dmi_quirk_table[] __initconst = {
 		.driver_data = (void *)(SERIO_QUIRK_NOMUX | SERIO_QUIRK_RESET_ALWAYS |
 					SERIO_QUIRK_NOLOOP | SERIO_QUIRK_NOPNP)
 	},
+	{
+		/*
+		 * Setting SERIO_QUIRK_NOMUX or SERIO_QUIRK_RESET_ALWAYS makes
+		 * the keyboard very laggy for ~5 seconds after boot and
+		 * sometimes also after resume.
+		 * However both are required for the keyboard to not fail
+		 * completely sometimes after boot or resume.
+		 */
+		.matches = {
+			DMI_MATCH(DMI_BOARD_NAME, "NHxxRZQ"),
+		},
+		.driver_data = (void *)(SERIO_QUIRK_NOMUX | SERIO_QUIRK_RESET_ALWAYS |
+					SERIO_QUIRK_NOLOOP | SERIO_QUIRK_NOPNP)
+	},
 	{
 		.matches = {
 			DMI_MATCH(DMI_BOARD_NAME, "NL5xRU"),
-- 
2.34.1