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usb: xhci-mtk: resume USB3 roothub first

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Give USB3 devices a better chance to enumerate at USB3 speeds if
they are connected to a suspended host.
Porting from "671ffdff5b xhci: resume USB 3 roothub first"

Cc: <[email protected]>
Signed-off-by: Chunfeng Yun <[email protected]>
Signed-off-by: Mathias Nyman <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Chunfeng Yun 2018-10-01 18:36:08 +03:00 • committed by Greg Kroah-Hartman
commit 555df5820e
1 changed files with 2 additions and 2 deletions
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4
drivers/usb/host/xhci-mtk.c
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@ -642,10 +642,10 @@ static int __maybe_unused xhci_mtk_resume(struct device *dev)
xhci_mtk_host_enable(mtk);
xhci_dbg(xhci, "%s: restart port polling\n", __func__);
set_bit(HCD_FLAG_POLL_RH, &hcd->flags);
usb_hcd_poll_rh_status(hcd);
set_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags);
usb_hcd_poll_rh_status(xhci->shared_hcd);
set_bit(HCD_FLAG_POLL_RH, &hcd->flags);
usb_hcd_poll_rh_status(hcd);
return 0;
}