linux-kernel - [PATCH] Input: i8042 - add TUXEDO BU1406 (N24

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Message-ID: <20170301012057.GA5402@dtor-ws>
Date:   Tue, 28 Feb 2017 17:20:57 -0800
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     linux-input@...r.kernel.org
Cc:     Paul Menzel <pmenzel@...gen.mpg.de>,
        Vojtech Pavlik <vojtech@...e.cz>, linux-kernel@...r.kernel.org
Subject: [PATCH] Input: i8042 - add TUXEDO BU1406 (N24_25BU) to the nomux list

TUXEDO BU1406 does not implement active multiplexing mode properly,
and takes around 550 ms in i8042_set_mux_mode(). Given that the
device does not have external AUX port, there is no downside in
disabling the MUX mode.

Reported-by: Paul Menzel <pmenzel@...gen.mpg.de>
Suggested-by: Vojtech Pavlik <vojtech@...e.cz>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
---
 drivers/input/serio/i8042-x86ia64io.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 0b9b9997fa4c..77c8f574f286 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -521,6 +521,13 @@ static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
 			DMI_MATCH(DMI_PRODUCT_VERSION, "V1.31"),
 		},
 	},
+	{
+		/* TUXEDO BU1406 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "N24_25BU"),
+		},
+	},
 	{ }
 };
 
-- 
2.11.0.483.g087da7b7c-goog


-- 
Dmitry