There is a hardware power-saving problem with the Lenovo N60z
board. When turn it on and leave it for 30 minutes, there is a
20% chance that a nvme disk will not wake up until reboot.
Signed-off-by: hmy <[email protected]>
Signed-off-by: Wentao Guan <[email protected]>
Signed-off-by: WangYuli <[email protected]>
---
drivers/nvme/host/pci.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 282d808400c5..1e0991667453 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2903,6 +2903,13 @@ 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 30 minuites on a Lenovo N60z board.
+ */
+ if (dmi_match(DMI_BOARD_NAME, "LXKT-ZXEG-N6"))
+ return NVME_QUIRK_NO_APST;
+
return 0;
}
--
2.45.1