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* [v2,2/3] usb: xhci-mtk: resume USB3 roothub first
@ 2018-09-20 15:43 Mathias Nyman
  0 siblings, 0 replies; only message in thread
From: Mathias Nyman @ 2018-09-20 15:43 UTC (permalink / raw)
  To: gregkh; +Cc: linux-usb, Chunfeng Yun, stable, Mathias Nyman

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

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

diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index 7334da9..71d0d33 100644
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -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;
 }
 

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2018-09-20 15:43 [v2,2/3] usb: xhci-mtk: resume USB3 roothub first Mathias Nyman

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