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nvme-pci: Add sleep quirk for Samsung 990 Evo
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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>
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Georg Gottleuber authored and Keith Busch committed Aug 27, 2024
1 parent 6f01bdb commit 61aa894
Showing 1 changed file with 11 additions and 0 deletions.
11 changes: 11 additions & 0 deletions drivers/nvme/host/pci.c
Original file line number Diff line number Diff line change
Expand Up @@ -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;
}

/*
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