linux-kernel - Re: [PATCH] nvme-pci: Add TUXEDO IBS Gen8 to Samsung sleep quirk

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Message-ID: <bcd2fe8a-c80a-4556-9944-83fd2b493567@tuxedocomputers.com>
Date: Mon, 25 Aug 2025 18:07:19 +0200
From: Werner Sembach <wse@...edocomputers.com>
To: Keith Busch <kbusch@...nel.org>, Jens Axboe <axboe@...nel.dk>,
 Christoph Hellwig <hch@....de>, Sagi Grimberg <sagi@...mberg.me>
Cc: Georg Gottleuber <ggo@...edocomputers.com>,
 linux-nvme@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] nvme-pci: Add TUXEDO IBS Gen8 to Samsung sleep quirk

Hi

Am 01.07.25 um 22:55 schrieb Werner Sembach:
> From: Georg Gottleuber <ggo@...edocomputers.com>
>
> On the TUXEDO InfinityBook S Gen8, a Samsung 990 Evo NVMe leads to
> a high power consumption in s2idle sleep (3.5 watts).
>
> This patch applies 'Force No Simple Suspend' quirk to achieve a sleep with
> a lower power consumption, typically around 1 watts.
>
> Signed-off-by: Georg Gottleuber <ggo@...edocomputers.com>
> Signed-off-by: Werner Sembach <wse@...edocomputers.com>
> Cc: stable@...r.kernel.org
gentle bump for this not to be forgotten
> ---
>   drivers/nvme/host/pci.c | 2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
> index 8ff12e415cb5d..d677080e67d33 100644
> --- a/drivers/nvme/host/pci.c
> +++ b/drivers/nvme/host/pci.c
> @@ -3198,10 +3198,12 @@ static unsigned long check_vendor_combination_bug(struct pci_dev *pdev)
>   		 * 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.
> +		 * (Note for testing: Samsung 990 Evo Plus has same PCI ID)
>   		 */
>   		if (dmi_match(DMI_BOARD_NAME, "DN50Z-140HC-YD") ||
>   		    dmi_match(DMI_BOARD_NAME, "GMxPXxx") ||
>   		    dmi_match(DMI_BOARD_NAME, "GXxMRXx") ||
> +		    dmi_match(DMI_BOARD_NAME, "NS5X_NS7XAU") ||
>   		    dmi_match(DMI_BOARD_NAME, "PH4PG31") ||
>   		    dmi_match(DMI_BOARD_NAME, "PH4PRX1_PH6PRX1") ||
>   		    dmi_match(DMI_BOARD_NAME, "PH6PG01_PH6PG71"))