On Mon, Dec 16, 2024 at 8:40 PM Keith Busch <kbusch@xxxxxxxxxx> wrote: > > On Mon, Dec 16, 2024 at 08:34:24PM +0100, Rafael J. Wysocki wrote: > > However, there is an additional concern that putting an NVMe device > > into D3cold every time during system suspend on Android might cause it > > to wear out more quickly. > > > > Is there anything else? > > I recall a previous reason for this behavior was because the resume > latency was significantly faster if we don't prepare the device for D3, > and the nvme protocol specific power states for some platforms was > sufficiently low enough. Apparently this choice hasn't been universally > optimal. Thanks for chiming in! I'm recalling some other reasons too (mentioned in one of my previous messages), but overall this is a driver design choice, it is not done to adhere to some general rule.
