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    Subject[PATCH 4.18 29/44] usb: xhci-mtk: resume USB3 roothub first
    Date
    4.18-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Chunfeng Yun <chunfeng.yun@mediatek.com>

    commit 555df5820e733cded7eb8d0bf78b2a791be51d75 upstream.

    Give USB3 devices a better chance to enumerate at USB3 speeds if
    they are connected to a suspended host.
    Porting from "671ffdff5b13 xhci: resume USB 3 roothub first"

    Cc: <stable@vger.kernel.org>
    Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
    Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/usb/host/xhci-mtk.c | 4 ++--
    1 file changed, 2 insertions(+), 2 deletions(-)

    --- a/drivers/usb/host/xhci-mtk.c
    +++ b/drivers/usb/host/xhci-mtk.c
    @@ -642,10 +642,10 @@ static int __maybe_unused xhci_mtk_resum
    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;
    }


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