Commit 61aa894e authored by Georg Gottleuber's avatar Georg Gottleuber Committed by Keith Busch

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: default avatarGeorg Gottleuber <ggo@tuxedocomputers.com>
Signed-off-by: default avatarWerner Sembach <wse@tuxedocomputers.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarKeith Busch <kbusch@kernel.org>
parent 6f01bdbf
......@@ -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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