[Bug 220491] usb_storage connected SD card disconnects/reconnects on resume from suspend

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=220491

--- Comment #46 from Mathias Nyman (mathias.nyman@linux.intel.com) ---
Created attachment 308630
  --> https://bugzilla.kernel.org/attachment.cgi?id=308630&action=edit
detect disconnected USB3 devies early in resume

This patch has a bit of different approach than adding delay to let link
settle. Trys to detect the disconnected USB3 device as early as possible in
resume, and reset devices as soon as possible. Idea is that maybe link is in
"better" shape if we reset it immediately instead of first trying futile
requests, let link fail , and then giving it more time to recover before reset.

Best case is that reset-resume is immediately used here (if persist is
enabled), and device may prevent visible disconnect and unmount.

If this does not happen then it should at least fail faster and do visible
disconnect a bit earlier

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