[PATCH] platform/x86: thinkpad_acpi: Add missing T14s Gen1 type to s2idle quirk list

From: Benjamin Asbach
Date: Fri Mar 31 2023 - 19:49:14 EST


> Lenovo laptops that contain NVME SSDs across a variety of generations have
> trouble resuming from suspend to idle when the IOMMU translation layer is
> active for the NVME storage device.
>
> This generally manifests as a large resume delay or page faults. These
> delays and page faults occur as a result of a Lenovo BIOS specific SMI
> that runs during the D3->D0 transition on NVME devices.

Link: https://lore.kernel.org/all/20220503183420.348-1-mario.limonciello@xxxxxxx/

As Lenovo distributes T14s Gen1 laptops with different product names
a missing one is added by this patch.

Note: Based on lenovo support page there might be some more variants which
are not represented in s2idle quirk list.

Signed-off-by: Benjamin Asbach <asbachb.kernel@xxxxxxx>
Tested-by: Benjamin Asbach <asbachb.kernel@xxxxxxx>

Link: https://bbs.archlinux.org/viewtopic.php?pid=2084655#p2084655
---
drivers/platform/x86/thinkpad_acpi.c | 9 +++++++++
1 file changed, 9 insertions(+)

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 32c10457399e..57428d7a392d 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -4478,6 +4478,15 @@ static const struct dmi_system_id fwbug_list[] __initconst = {
DMI_MATCH(DMI_PRODUCT_NAME, "20UH"),
}
},
+ {
+ .ident = "T14s Gen1 AMD",
+ .driver_data = &quirk_s2idle_bug,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "20UJ"),
+ }
+ },
+
{
.ident = "P14s Gen1 AMD",
.driver_data = &quirk_s2idle_bug,
--
2.40.0