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

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Message-ID: <20251024152152.3981721-3-lkml@antheas.dev>
Date: Fri, 24 Oct 2025 17:21:51 +0200
From: Antheas Kapenekakis <lkml@...heas.dev>
To: Alex Deucher <alexander.deucher@....com>,
	Shyam Sundar S K <Shyam-sundar.S-k@....com>,
	Mario Limonciello <mario.limonciello@....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,
	Antheas Kapenekakis <lkml@...heas.dev>
Subject: [PATCH v1 2/3] platform/x86/amd/pmc: Add spurious_8042 to Xbox Ally

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>
---
 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",
-- 
2.51.0