4.9-stable review patch. If anyone has any objections, please let me know.
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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 @@ -735,10 +735,10 @@ 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; }