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Commit 38f82cf8 authored by Mario Limonciello's avatar Mario Limonciello Committed by Greg Kroah-Hartman
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ACPI: Check StorageD3Enable _DSD property in ACPI code

[ Upstream commit 2744d7a0 ]

Although first implemented for NVME, this check may be usable by
other drivers as well. Microsoft's specification explicitly mentions
that is may be usable by SATA and AHCI devices.  Google also indicates
that they have used this with SDHCI in a downstream kernel tree that
a user can plug a storage device into.

Link: https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/power-management-for-storage-hardware-devices-intro


Suggested-by: default avatarKeith Busch <kbusch@kernel.org>
CC: Shyam-sundar S-k <Shyam-sundar.S-k@amd.com>
CC: Alexander Deucher <Alexander.Deucher@amd.com>
CC: Rafael J. Wysocki <rjw@rjwysocki.net>
CC: Prike Liang <prike.liang@amd.com>
Signed-off-by: default avatarMario Limonciello <mario.limonciello@amd.com>
Reviewed-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Stable-dep-of: dad651b2 ("nvme-pci: do not set the NUMA node of device if it has none")
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 67025d56
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