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authorMario Limonciello <mario.limonciello@amd.com>2021-06-09 13:40:17 -0500
committerChristoph Hellwig <hch@lst.de>2021-06-16 05:14:59 +0200
commit2744d7a0733503931b71c00d156119ced002f22c (patch)
tree026a01cc99ca3d54b68d49a1f81f4a04707a4a03 /drivers/hsi
parente0d245e2230998e66dfda10fb8c413f29196eb1c (diff)
ACPI: Check StorageD3Enable _DSD property in ACPI code
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: Keith 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: Mario Limonciello <mario.limonciello@amd.com> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
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