linux-kernel - Re: [PATCH] ACPI: resource: Add IRQ override for MECHREV Jiaolong17KS

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Date:   Fri, 30 Jun 2023 15:05:52 +0200
From:   "Linux regression tracking (Thorsten Leemhuis)" 
        <regressions@...mhuis.info>
To:     Li Chen <me@...ux.beauty>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-acpi <linux-acpi@...r.kernel.org>,
        Len Brown <lenb@...nel.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Mario Limonciello <mario.limonciello@....com>
Cc:     Linux kernel regressions list <regressions@...ts.linux.dev>
Subject: Re: [PATCH] ACPI: resource: Add IRQ override for MECHREV Jiaolong17KS

[CCing mario and the regressions list]

On 30.06.23 14:20, Li Chen wrote:
> Fix a regression introduced by commit 9946e39fe8d0 ("ACPI: resource: skip
> IRQ override on AMD Zen platforms") on MECHREV Jiaolong17KS, which
> causes the built-in keyboard to not work. This restores the functionality
> by adding an IRQ override.
> 
> I have personally tested this on the 17" model but I'm not sure if this
> issue is present on the 16 model.
> 
> Fixes: 9946e39fe8d0 ("ACPI: resource: skip IRQ override on AMD Zen platforms")
> Signed-off-by: Li Chen <me@...ux.beauty>

Not my area of expertise (so take this with a gain of salt), but I'm
aware of something that afaics concerns this:

A few days ago a patch was merged to mainline that afaics hopefully
might make a change like your unnecessary.  See a9c4a912b7d ("ACPI:
resource: Remove "Zen" specific match and quirks") in mainline or here:
https://lore.kernel.org/all/20230601221151.670-1-mario.limonciello@amd.com/

Might be worth giving a try.

There is a rough plan to backport this to stable kernels, unless
problems show up.

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
Everything you wanna know about Linux kernel regression tracking:
https://linux-regtracking.leemhuis.info/about/#tldr
If I did something stupid, please tell me, as explained on that page.