linux-kernel - [REGRESSION][BISECTED] asus-wmi driver fails on my laptop

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Message-ID: <33bfcda8-3d3d-46b9-84f0-44e0e9f44230@gmail.com>
Date: Fri, 6 Dec 2024 15:33:07 +0200
From: Yura Strilets <yurastr100@...il.com>
To: platform-driver-x86@...r.kernel.org
Cc: regressions@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: [REGRESSION][BISECTED] asus-wmi driver fails on my laptop

Hello,

After upgrading from 6.11 to 6.12 a bunch of Fn+Fx buttons(touchpad, 
mic, kb backlight, my asus) stopped working and the 
/sys/(...)/asus::kbd_backlight interface is missing, which, considering 
the dmesg, looks like an asus-wmi driver issue.

I've been able to bisect the issue to the commit 
[b012170fed282151f7ba8988a347670c299f5ab3] "platform/x86: asus-wmi: Fix 
thermal profile initialization"

Additionally, here's some maybe-helpful information:
my laptop's model -- ASUS Zenbook UX3402VA
linux distro -- Arch Linux
.config for bisection -- was taken from /proc/config.gz at 6.12.1 arch 
kernel(attached in [1]) and missing options are default
dmesg logs -- The "grep asus" parts of both good and bad scenarios can 
be seen below and full logs are at [2] and [3]

== bad.log ==
[    3.664546] asus_wmi: ASUS WMI generic driver loaded
[    3.713358] asus_wmi: Initialization: 0x1
[    3.714126] asus_wmi: SFUN value: 0x21
[    3.714131] asus-nb-wmi asus-nb-wmi: Detected ATK, not ASUSWMI, use DSTS
[    3.757420] asus_wmi: Failed to set throttle thermal policy (retval): 0x0
[    3.757425] asus_wmi: Failed to set default thermal profile
[    3.757429] asus-nb-wmi asus-nb-wmi: probe with driver asus-nb-wmi 
failed with error -5
== end ==

== good.log ==
[    4.557898] asus_wmi: ASUS WMI generic driver loaded
[    4.776587] asus_wmi: Initialization: 0x1
[    4.777253] asus_wmi: SFUN value: 0x21
[    4.777256] asus-nb-wmi asus-nb-wmi: Detected ATK, not ASUSWMI, use DSTS
[    4.777258] asus-nb-wmi asus-nb-wmi: Detected ATK, enable event queue
[    4.805497] input: Asus WMI hotkeys as 
/devices/platform/asus-nb-wmi/input/input15
== end ==

[1] .config - https://pastebin.com/raw/3nDSV8Sm
[2] bad.log - https://pastebin.com/raw/fvR5Sjzt
[3] good.log - https://pastebin.com/raw/EazfLAWA

Thanks,
Yurii