linux-kernel - Re: [PATCH 3/3] pinctrl: amd: Add a quirk for Lenovo Ideapad 5

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Date:   Thu, 14 Sep 2023 09:38:01 -0500
From:   Mario Limonciello <mario.limonciello@....com>
To:     Luca Pigliacampo <lucapgl2001@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>
Cc:     Hans de Goede <hdegoede@...hat.com>, regressions@...ts.linux.dev,
        Shyam-sundar.S-k@....com, Basavaraj.Natikar@....com,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] pinctrl: amd: Add a quirk for Lenovo Ideapad 5

On 9/14/2023 04:08, Luca Pigliacampo wrote:
> On 9/14/23 10:43, Linus Walleij wrote:
> 
>> On Wed, Sep 13, 2023 at 11:21 PM Mario Limonciello
>> <mario.limonciello@....com> wrote:
>>
>>> 2. In better news updating the BIOS fixed the issue in both Linux and
>>> Windows, no kernel patches needed.
>>>
>>> So no further work will be done on this series.
>> Is it easy for users to update BIOS? I.e. does
>> fwupdmgr update work?
>>
>> Or does it require flashing special USB drives with FAT filesystems...?
>>
>> Because I'm not sure all users will do that. Or even be aware that
>> they should. In that case detecting the situation and emitting
>> a dev_err() telling the user to update their BIOS would be
>> desirable I think?
>>

I'm not sure how to detect it without giving false positives to users 
with no problems.

>> Yours,
>> Linus Walleij
> 
> sadly it's not convenient,
> 
> the only way lenovo offers to update the bios
> 
> is an executable to run on windows.
> 
> 
> So a user should either have a dual boot
> 
> or install windows on an external drive and boot from that,
> 
> also the update process might wipe every boot entry beside windows.
> 
> 
> I read that some bios updaters also run on freedos, but i didn't try
> 

On some systems Lenovo offers native updates for Linux, but I guess not 
this one.