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authorZeyu WANG <zeyu.thomas.wang@gmail.com>2026-06-03 01:09:09 +0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2026-06-02 16:33:40 -0700
commitad0979fe053e9f2db82da82188256ef6eb41095a (patch)
treec2c67fb6ec408083c4a1867880c07c47a66dd7a6 /drivers/misc/mic
parentdab48a7e74e6a394f3aa0461a2b1fb0c7b38fcb8 (diff)
Input: atkbd - add DMI quirk for Lenovo Yoga Air 14 (83QK)
The Lenovo Yoga Air 14 (83QK) laptop keyboard becomes unresponsive after the standard atkbd init sequence. Controlled testing on the actual hardware shows the F5 (ATKBD_CMD_RESET_DIS / deactivate) command specifically corrupts the EC state, causing zero IRQ1 interrupts after init. Skipping only the deactivate command (while keeping F4 ENABLE) resolves the issue completely: both keystroke input and CapsLock LED toggle work correctly. The reverse test - skipping only F4 while keeping F5 - makes the problem worse (zero keystroke interrupts), confirming F5 is the sole culprit. Add a DMI quirk entry for LENOVO/83QK using the existing atkbd_deactivate_fixup callback, consistent with the existing entries for LG Electronics and HONOR FMB-P that address the same EC F5 deactivate issue. Signed-off-by: Zeyu WANG <zeyu.thomas.wang@gmail.com> Link: https://patch.msgid.link/20260602170909.14725-1-zeyu.thomas.wang@gmail.com Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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