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2744d7a073
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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