Re: [PATCH] Input: i8042 - add Xiaomi Book Pro 14 to dumbkbd quirk list

Hi Andrew,

I have the same machine and sent an alternative fix today, "Input: atkbd -
skip deactivate for Xiaomi Book Pro 14's internal keyboard".

On this machine atkbd deactivates the keyboard at the end of atkbd_probe();
the EC acknowledges the ATKBD_CMD_ENABLE issued afterwards but never resumes
scanning, so no key is ever reported. Setting the existing
atkbd_deactivate_fixup quirk avoids the deactivation and the internal
keyboard works.

Compared to SERIO_QUIRK_DUMBKBD this also keeps the keyboard LED working:
with dumbkbd the driver never writes to the keyboard at all, so the Caps Lock
LED is not available.

Tested on Xiaomi Book Pro 14, board TM2424.

Thanks,
Zhefu Zhang