nvme-pci: Add sleep quirk for Samsung 990 Evo

On some TUXEDO platforms, a Samsung 990 Evo NVMe leads to a high
power consumption in s2idle sleep (2-3 watts).

This patch applies 'Force No Simple Suspend' quirk to achieve a
sleep with a lower power consumption, typically around 0.5 watts.

Signed-off-by: Georg Gottleuber <ggo@tuxedocomputers.com>
Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Keith Busch <kbusch@kernel.org>

diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 9026a730d5ed8bcaa94016d5d65edbac8d5b9ba2..c0533f3f64cbadb4c8e74776d020668bfaca79f3 100644 (file)
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -2973,6 +2973,17 @@ static unsigned long check_vendor_combination_bug(struct pci_dev *pdev)
                    dmi_match(DMI_BOARD_NAME, "NS5x_7xPU") ||
                    dmi_match(DMI_BOARD_NAME, "PH4PRX1_PH6PRX1"))
                        return NVME_QUIRK_FORCE_NO_SIMPLE_SUSPEND;
+       } else if (pdev->vendor == 0x144d && pdev->device == 0xa80d) {
+               /*
+                * Exclude Samsung 990 Evo from NVME_QUIRK_SIMPLE_SUSPEND
+                * because of high power consumption (> 2 Watt) in s2idle
+                * sleep. Only some boards with Intel CPU are affected.
+                */
+               if (dmi_match(DMI_BOARD_NAME, "GMxPXxx") ||
+                   dmi_match(DMI_BOARD_NAME, "PH4PG31") ||
+                   dmi_match(DMI_BOARD_NAME, "PH4PRX1_PH6PRX1") ||
+                   dmi_match(DMI_BOARD_NAME, "PH6PG01_PH6PG71"))
+                       return NVME_QUIRK_FORCE_NO_SIMPLE_SUSPEND;
        }
 
        /*