From: Christoph Hellwig <hch@lst.de>
To: Werner Sembach <wse@tuxedocomputers.com>
Cc: Keith Busch <kbusch@kernel.org>, Jens Axboe <axboe@kernel.dk>,
Christoph Hellwig <hch@lst.de>, Sagi Grimberg <sagi@grimberg.me>,
Georg Gottleuber <ggo@tuxedocomputers.com>,
linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] nvme-pci: Add sleep quirk for Samsung 990 Evo
Date: Tue, 2 Apr 2024 15:16:58 +0200 [thread overview]
Message-ID: <20240402131658.GA31963@lst.de> (raw)
In-Reply-To: <20240328130923.61752-1-wse@tuxedocomputers.com>
On Thu, Mar 28, 2024 at 02:09:22PM +0100, Werner Sembach wrote:
> From: Georg Gottleuber <ggo@tuxedocomputers.com>
>
> 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.
Does this only apply to a specific SSD or all SSDs on this platform?
How do these platforms even get into the conditional? Probably
through acpi_storage_d3 setting, which probably is set incorrectly
for the platform? Any chance to just fix that?
next prev parent reply other threads:[~2024-04-02 13:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-28 13:09 [PATCH] nvme-pci: Add sleep quirk for Samsung 990 Evo Werner Sembach
2024-04-02 13:16 ` Christoph Hellwig [this message]
2024-04-02 15:13 ` Georg Gottleuber
2024-04-02 16:08 ` Keith Busch
2024-04-03 9:24 ` Georg Gottleuber
2024-08-09 9:37 ` Werner Sembach
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