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From: Antheas Kapenekakis <lkml@antheas.dev>
To: Mario Limonciello <mario.limonciello@amd.com>,
	Shyam-sundar.S-k@amd.com, hansg@kernel.org,
	ilpo.jarvinen@linux.intel.com
Cc: platform-driver-x86@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Mark Pearson <mpearson-lenovo@squebb.ca>,
	Antheas Kapenekakis <lkml@antheas.dev>
Subject: [PATCH v1] platform/x86/amd: pmc: Add Lenovo Legion Go 2 to pmc quirk list
Date: Wed,  8 Oct 2025 15:50:57 +0200	[thread overview]
Message-ID: <20251008135057.731928-1-lkml@antheas.dev> (raw)

The Lenovo Legion Go 2 takes a long time to resume from suspend.
This is due to it having an nvme resume handler that interferes
with IOMMU mappings. It is a common issue with older Lenovo
laptops. Adding it to that quirk list fixes this issue.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4618
Suggested-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
---
 drivers/platform/x86/amd/pmc/pmc-quirks.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/platform/x86/amd/pmc/pmc-quirks.c b/drivers/platform/x86/amd/pmc/pmc-quirks.c
index d63aaad7ef59..0fadcf5f288a 100644
--- a/drivers/platform/x86/amd/pmc/pmc-quirks.c
+++ b/drivers/platform/x86/amd/pmc/pmc-quirks.c
@@ -204,6 +204,23 @@ static const struct dmi_system_id fwbug_list[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "82ND"),
 		}
 	},
+	/* https://gitlab.freedesktop.org/drm/amd/-/issues/4618 */
+	{
+		.ident = "Lenovo Legion Go 2",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "83N0"),
+		}
+	},
+	{
+		.ident = "Lenovo Legion Go 2",
+		.driver_data = &quirk_s2idle_bug,
+		.matches = {
+			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "83N1"),
+		}
+	},
 	/* https://gitlab.freedesktop.org/drm/amd/-/issues/2684 */
 	{
 		.ident = "HP Laptop 15s-eq2xxx",

base-commit: a8cdf51cda30f7461a98af821e8a28c5cb5f8878
-- 
2.51.0



             reply	other threads:[~2025-10-08 14:02 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-08 13:50 Antheas Kapenekakis [this message]
2025-10-08 14:06 ` Mario Limonciello
2025-10-08 14:18   ` Antheas Kapenekakis
2025-10-08 15:14     ` Mario Limonciello
2025-10-08 15:38       ` Antheas Kapenekakis
2025-11-05 12:24 ` Ilpo Järvinen

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