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authorWangYuli <wangyuli@uniontech.com>2024-07-15 11:31:44 +0200
committerKeith Busch <kbusch@kernel.org>2024-07-15 22:43:39 +0200
commitab091ec536cb7b271983c0c063b17f62f3591583 (patch)
tree12459dd42c099f968becd911c3ec8867eff4ef9c
parents390/dasd: fix error checks in dasd_copy_pair_store() (diff)
downloadlinux-ab091ec536cb7b271983c0c063b17f62f3591583.tar.xz
linux-ab091ec536cb7b271983c0c063b17f62f3591583.zip
nvme/pci: Add APST quirk for Lenovo N60z laptop
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 <huanglin@uniontech.com> Signed-off-by: Wentao Guan <guanwentao@uniontech.com> Signed-off-by: WangYuli <wangyuli@uniontech.com> Signed-off-by: Keith Busch <kbusch@kernel.org>
-rw-r--r--drivers/nvme/host/pci.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 21f8e1b9801f..bc24a85e96ce 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2968,6 +2968,13 @@ static unsigned long check_vendor_combination_bug(struct pci_dev *pdev)
return NVME_QUIRK_FORCE_NO_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;
}