[RFC PATCH v3 3/5] usb: xhci-mtk: fix random remote wakeup

Chunfeng Yun
2020-12-22T09:36:01Z

Wakeup_signal will toggle status according to ssusb_ip_sleep
signal after debounc time, add a delay time to avoid spurious
wakeup event.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
v3: new patch
---
drivers/usb/host/xhci-mtk.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index 565ce4c16206..34bd3de090b1 100755
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -172,7 +172,10 @@ static int xhci_mtk_host_disable(struct xhci_hcd_mtk *mtk)
if (ret) {
dev_err(mtk->dev, "ip sleep failed!!!\n");
return ret;
+ } else {
+ usleep_range(200, 250);
}
+
return 0;
}

--
2.18.0