[PATCH 1/6] usb: xhci-mtk: resume USB3 roothub first

Chunfeng Yun
2018-08-29T02:55:13Z

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

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.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;
}

--
1.9.1