linux-kernel - Re: [PATCH v1 2/3] platform/x86/amd/pmc: Add spurious

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Message-ID: <314fb56c-54b6-48e8-a5dd-a615712003f1@kernel.org>
Date: Fri, 24 Oct 2025 10:54:53 -0500
From: "Mario Limonciello (AMD) (kernel.org)" <superm1@...nel.org>
To: Antheas Kapenekakis <lkml@...heas.dev>,
 Alex Deucher <alexander.deucher@....com>,
 Shyam Sundar S K <Shyam-sundar.S-k@....com>, Perry Yuan <perry.yuan@....com>
Cc: amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
 linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org
Subject: Re: [PATCH v1 2/3] platform/x86/amd/pmc: Add spurious_8042 to Xbox
 Ally



On 10/24/2025 10:21 AM, Antheas Kapenekakis wrote:
> The Xbox Ally features a Van Gogh SoC that has spurious interrupts
> during resume. We get the following logs:
> 
> atkbd_receive_byte: 20 callbacks suppressed
> atkbd serio0: Spurious ACK on isa0060/serio0. Some program might be trying to access hardware directly.
> 
> So, add the spurious_8042 quirk for it. It does not have a keyboard, so
> this does not result in any functional loss.
> 
> Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4659
> Signed-off-by: Antheas Kapenekakis <lkml@...heas.dev>
Reviewed-by: Mario Limonciello (AMD) <superm1@...nel.org>> ---
>   drivers/platform/x86/amd/pmc/pmc-quirks.c | 8 ++++++++
>   1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/platform/x86/amd/pmc/pmc-quirks.c b/drivers/platform/x86/amd/pmc/pmc-quirks.c
> index d63aaad7ef59..eb641ce0e982 100644
> --- a/drivers/platform/x86/amd/pmc/pmc-quirks.c
> +++ b/drivers/platform/x86/amd/pmc/pmc-quirks.c
> @@ -122,6 +122,14 @@ static const struct dmi_system_id fwbug_list[] = {
>   			DMI_MATCH(DMI_PRODUCT_NAME, "21A1"),
>   		}
>   	},
> +	{
> +		.ident = "ROG Xbox Ally RC73YA",
> +		.driver_data = &quirk_spurious_8042,
> +		.matches = {
> +			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
> +			DMI_MATCH(DMI_BOARD_NAME, "RC73YA"),
> +		}
> +	},
>   	/* https://bugzilla.kernel.org/show_bug.cgi?id=218024 */
>   	{
>   		.ident = "V14 G4 AMN",