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Manually adapted: layerscape/patches-5.4/820-usb-0009-usb-dwc3-Add-workaround-for-host-mode-VBUS-glitch-wh.patch Compile-tested: x86/64 Run-tested: x86/64 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
29 lines
982 B
Diff
29 lines
982 B
Diff
From 6921c206918a2bd9882bbf77211d37a063233d95 Mon Sep 17 00:00:00 2001
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From: Li Jun <jun.li@nxp.com>
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Date: Thu, 8 Aug 2019 16:13:40 +0800
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Subject: [PATCH] MLK-22099 usb: host: xhci: do warm reset for link state
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rxdect
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As some USB3 port will lose link state while system sleep, then
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the link state will be at rxdect after resume, we need a warm
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reset to bring it back, so add the rxdect condition for CAS
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missing.
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Signed-off-by: Li Jun <jun.li@nxp.com>
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---
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drivers/usb/host/xhci-hub.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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--- a/drivers/usb/host/xhci-hub.c
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+++ b/drivers/usb/host/xhci-hub.c
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@@ -1754,7 +1754,8 @@ static bool xhci_port_missing_cas_quirk(
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return false;
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if (((portsc & PORT_PLS_MASK) != XDEV_POLLING) &&
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- ((portsc & PORT_PLS_MASK) != XDEV_COMP_MODE))
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+ ((portsc & PORT_PLS_MASK) != XDEV_COMP_MODE) &&
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+ ((portsc & PORT_PLS_MASK) != XDEV_RXDETECT))
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return false;
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/* clear wakeup/change bits, and do a warm port reset */
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