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| author | Georg Gottleuber <ggo@tuxedocomputers.com> | 2024-08-27 12:41:33 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-09-12 11:12:44 +0200 |
| commit | bf958898d5f51c3a0eb16bfd8ac6b300fbc79aed (patch) | |
| tree | 9d8eb63ddbb3903c561f0435fdca05e2e5fc5d33 | |
| parent | 1863e1f098c5c18d39476d08f53aa5d1640335c5 (diff) | |
| download | linux-stable-bf958898d5f51c3a0eb16bfd8ac6b300fbc79aed.tar.gz linux-stable-bf958898d5f51c3a0eb16bfd8ac6b300fbc79aed.tar.bz2 linux-stable-bf958898d5f51c3a0eb16bfd8ac6b300fbc79aed.zip | |
nvme-pci: Add sleep quirk for Samsung 990 Evo
commit 61aa894e7a2fda4ee026523b01d07e83ce2abb72 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/nvme/host/pci.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index a823330567ff..146d33c4839f 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -2931,6 +2931,17 @@ 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; } /* |