diff options
| author | Georg Gottleuber <ggo@tuxedocomputers.com> | 2024-08-27 12:41:33 +0200 |
|---|---|---|
| committer | Keith Busch <kbusch@kernel.org> | 2024-08-27 12:06:43 -0700 |
| commit | 61aa894e7a2fda4ee026523b01d07e83ce2abb72 (patch) | |
| tree | 1fc90230a145c452a562ef5bc123f3c485f5616e /drivers/nvme | |
| parent | 6f01bdbfef3b62955cf6503a8425d527b3a5cf94 (diff) | |
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>
Diffstat (limited to 'drivers/nvme')
| -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 9026a730d5ed..c0533f3f64cb 100644 --- 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; } /* |