Patch "Input: i8042 - add Fujitsu Lifebook U728 to i8042 quirk table" has been added to the 5.15-stable tree

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This is a note to let you know that I've just added the patch titled

    Input: i8042 - add Fujitsu Lifebook U728 to i8042 quirk table

to the 5.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     input-i8042-add-fujitsu-lifebook-u728-to-i8042-quirk.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit f23074fb92a09a8f12db2f213e74c368cf51e96b
Author: Szilard Fabian <szfabian@xxxxxxxxxxxxx>
Date:   Fri Feb 2 10:28:59 2024 -0800

    Input: i8042 - add Fujitsu Lifebook U728 to i8042 quirk table
    
    [ Upstream commit 4255447ad34c5c3785fcdcf76cfa0271d6e5ed39 ]
    
    Another Fujitsu-related patch.
    
    In the initial boot stage the integrated keyboard of Fujitsu Lifebook U728
    refuses to work and it's not possible to type for example a dm-crypt
    passphrase without the help of an external keyboard.
    
    i8042.nomux kernel parameter resolves this issue but using that a PS/2
    mouse is detected. This input device is unused even when the i2c-hid-acpi
    kernel module is blacklisted making the integrated ELAN touchpad
    (04F3:3092) not working at all.
    
    So this notebook uses a hid-over-i2c touchpad which is managed by the
    i2c_designware input driver. Since you can't find a PS/2 mouse port on this
    computer and you can't connect a PS/2 mouse to it even with an official
    port replicator I think it's safe to not use the PS/2 mouse port at all.
    
    Signed-off-by: Szilard Fabian <szfabian@xxxxxxxxxxxxx>
    Link: https://lore.kernel.org/r/20240103014717.127307-2-szfabian@xxxxxxxxxxxxx
    Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/input/serio/i8042-acpipnpio.h b/drivers/input/serio/i8042-acpipnpio.h
index 359d1a287a78e..d4792950bcffd 100644
--- a/drivers/input/serio/i8042-acpipnpio.h
+++ b/drivers/input/serio/i8042-acpipnpio.h
@@ -625,6 +625,14 @@ static const struct dmi_system_id i8042_dmi_quirk_table[] __initconst = {
 		},
 		.driver_data = (void *)(SERIO_QUIRK_NOAUX)
 	},
+	{
+		/* Fujitsu Lifebook U728 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U728"),
+		},
+		.driver_data = (void *)(SERIO_QUIRK_NOAUX)
+	},
 	{
 		/* Gigabyte M912 */
 		.matches = {




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