linux-kernel - [PATCH] Input: i8042 - add Ayaneo Kun to i8042 quirk table

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Date: Fri, 31 May 2024 21:00:59 +0200
From: tjakobi@...h.uni-bielefeld.de
To: Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc: Tobias Jakobi <tjakobi@...h.uni-bielefeld.de>,
	linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] Input: i8042 - add Ayaneo Kun to i8042 quirk table

From: Tobias Jakobi <tjakobi@...h.uni-bielefeld.de>

See the added comment for details. Also fix a typo in the
quirk's define.

Signed-off-by: Tobias Jakobi <tjakobi@...h.uni-bielefeld.de>
---
 drivers/input/serio/i8042-acpipnpio.h | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/input/serio/i8042-acpipnpio.h b/drivers/input/serio/i8042-acpipnpio.h
index dfc6c581873b..0a7388985622 100644
--- a/drivers/input/serio/i8042-acpipnpio.h
+++ b/drivers/input/serio/i8042-acpipnpio.h
@@ -76,7 +76,7 @@ static inline void i8042_write_command(int val)
 #define SERIO_QUIRK_PROBE_DEFER		BIT(5)
 #define SERIO_QUIRK_RESET_ALWAYS	BIT(6)
 #define SERIO_QUIRK_RESET_NEVER		BIT(7)
-#define SERIO_QUIRK_DIECT		BIT(8)
+#define SERIO_QUIRK_DIRECT		BIT(8)
 #define SERIO_QUIRK_DUMBKBD		BIT(9)
 #define SERIO_QUIRK_NOLOOP		BIT(10)
 #define SERIO_QUIRK_NOTIMEOUT		BIT(11)
@@ -1332,6 +1332,19 @@ 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)
 	},
+	{
+		/*
+		 * The Ayaneo Kun is a handheld device where some the buttons are handled by an
+		 * AT keyboard. The keyboard is usually detected as raw, but sometimes, usually
+		 * after a cold boot, it is detected as translated.
+		 * Make sure that the keyboard is always in raw mode.
+		 */
+		.matches = {
+			DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AYANEO"),
+			DMI_MATCH(DMI_BOARD_NAME, "KUN"),
+		},
+		.driver_data = (void *)(SERIO_QUIRK_DIRECT)
+	},
 	{ }
 };
 
@@ -1655,7 +1668,7 @@ static void __init i8042_check_quirks(void)
 		if (quirks & SERIO_QUIRK_RESET_NEVER)
 			i8042_reset = I8042_RESET_NEVER;
 	}
-	if (quirks & SERIO_QUIRK_DIECT)
+	if (quirks & SERIO_QUIRK_DIRECT)
 		i8042_direct = true;
 	if (quirks & SERIO_QUIRK_DUMBKBD)
 		i8042_dumbkbd = true;
-- 
2.44.1