From: Georg Gottleuber Date: Tue, 27 Aug 2024 10:41:33 +0000 (+0200) Subject: nvme-pci: Add sleep quirk for Samsung 990 Evo X-Git-Tag: v6.11-rc7~17^2^2~2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=61aa894e7a2fda4ee026523b01d07e83ce2abb72;p=thirdparty%2Fkernel%2Flinux.git 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 Signed-off-by: Werner Sembach Cc: Signed-off-by: Keith Busch --- diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 9026a730d5ed8..c0533f3f64cba 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; } /*