From: Chunfeng Yun <chunfeng.yun@mediatek.com>
To: Ikjoon Jang <ikjn@chromium.org>
Cc: Zhanyong Wang <zhangyong.wang@mediatek.com>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
Tianping Fang <tianping.fang@mediatek.com>,
linux-mediatek@lists.infradead.org,
Chunfeng Yun <chunfeng.yun@mediatek.com>
Subject: [RFC PATCH v3 3/5] usb: xhci-mtk: fix random remote wakeup
Date: Tue, 22 Dec 2020 17:34:40 +0800 [thread overview]
Message-ID: <1608629682-8535-3-git-send-email-chunfeng.yun@mediatek.com> (raw)
In-Reply-To: <1608629682-8535-1-git-send-email-chunfeng.yun@mediatek.com>
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
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next prev parent reply other threads:[~2020-12-22 9:35 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-22 9:34 [RFC PATCH v3 1/5] usb: xhci-mtk: improve bandwidth scheduling with multi-TT Chunfeng Yun
2020-12-22 9:34 ` [RFC PATCH v3 2/5] usb: xhci-mtk: add mt8192 wakeup Chunfeng Yun
2020-12-22 9:34 ` Chunfeng Yun [this message]
2020-12-22 9:34 ` [RFC PATCH v3 4/5] usb: xhci-mtk: add support runtime pm Chunfeng Yun
2020-12-29 7:38 ` Ikjoon Jang
2021-01-05 7:13 ` Chunfeng Yun
2020-12-22 9:34 ` [RFC PATCH v3 5/5] arm64: dts: mt8192: add SSUSB related nodes Chunfeng Yun
2021-01-13 9:43 ` [RFC PATCH v3 1/5] usb: xhci-mtk: improve bandwidth scheduling with multi-TT Ikjoon Jang
2021-01-19 6:57 ` Chunfeng Yun
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