]> asedeno.scripts.mit.edu Git - linux.git/blobdiff - drivers/nvme/host/pci.c
nvme/pci: Add sleep quirk for Samsung and Toshiba drives
[linux.git] / drivers / nvme / host / pci.c
index 9c80f9f081496b09c8e17487624dec9008817863..b0434b687b178065bb9ddc80325b69567b2b57d4 100644 (file)
@@ -2747,6 +2747,18 @@ static unsigned long check_vendor_combination_bug(struct pci_dev *pdev)
                    (dmi_match(DMI_BOARD_NAME, "PRIME B350M-A") ||
                     dmi_match(DMI_BOARD_NAME, "PRIME Z370-A")))
                        return NVME_QUIRK_NO_APST;
+       } else if ((pdev->vendor == 0x144d && (pdev->device == 0xa801 ||
+                   pdev->device == 0xa808 || pdev->device == 0xa809)) ||
+                  (pdev->vendor == 0x1e0f && pdev->device == 0x0001)) {
+               /*
+                * Forcing to use host managed nvme power settings for
+                * lowest idle power with quick resume latency on
+                * Samsung and Toshiba SSDs based on suspend behavior
+                * on Coffee Lake board for LENOVO C640
+                */
+               if ((dmi_match(DMI_BOARD_VENDOR, "LENOVO")) &&
+                    dmi_match(DMI_BOARD_NAME, "LNVNB161216"))
+                       return NVME_QUIRK_SIMPLE_SUSPEND;
        }
 
        return 0;