nvme/pci: Add APST quirk for Lenovo N60z laptop

commit ab091ec upstream. There is a hardware power-saving problem with the Lenovo N60z board. When turn it on and leave it for 10 hours, there is a 20% chance that a nvme disk will not wake up until reboot. Link: https://lore.kernel.org/all/2B5581C46AC6E335+9c7a81f1-05fb-4fd0-9fbb-108757c21628@uniontech.com Signed-off-by: hmy <[email protected]> Signed-off-by: Wentao Guan <[email protected]> Signed-off-by: WangYuli <[email protected]> Signed-off-by: Keith Busch <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
frank-w · Aug 19, 2024 · b21ea49 · b21ea49
1 parent 15469d4
commit b21ea49
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
@@ -2846,6 +2846,13 @@ static unsigned long check_vendor_combination_bug(struct pci_dev *pdev)
 			return NVME_QUIRK_SIMPLE_SUSPEND;
 	}
 
+	/*
+	 * NVMe SSD drops off the PCIe bus after system idle
+	 * for 10 hours on a Lenovo N60z board.
+	 */
+	if (dmi_match(DMI_BOARD_NAME, "LXKT-ZXEG-N6"))
+		return NVME_QUIRK_NO_APST;
+
 	return 0;
 }