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Some xHC controllers (e.g. Rockchip rk3399) integrated in DWC3 IP, will be powered down in S3, and reinitialized after resume. However, if a USB3 device is plugged before system enter S3, the device will be disconnected after resume because of xHC lose power. And the device can't be detected again even if we reinitialize xHC. In this case, CCS and CSC is '0' and can't reflect the current state of the port, also the link state stays in Rx.Detect. So try to do warm reset on resume to reset USB3 device to the default state, also reset a USB3 link, and re-exchange link configuration information. BUG=chrome-os-partner:58347 TEST=Plug an USB3 flash drive in rk3399 Kevin board Type-C port, then set system enter S3. Wakeup system, check if USB3 device can be detected after resume. Change-Id: I90975a48866569f2c2422a244afc618a3e427f57 Signed-off-by: William wu <wulf@rock-chips.com> Reviewed-on: https://chromium-review.googlesource.com/412487 Commit-Ready: Guenter Roeck <groeck@chromium.org> Tested-by: Guenter Roeck <groeck@chromium.org> Tested-by: Inno Park <ih.yoo.park@samsung.com> Reviewed-by: Guenter Roeck <groeck@chromium.org> Signed-off-by: Meng Dongyang <daniel.meng@rock-chips.com>