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xhci: use default USB_RESUME_TIMEOUT when resuming ports.

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commit 7d3b016a6f upstream.

USB2 host inititated resume, and system suspend bus resume
need to use the same USB_RESUME_TIMEOUT as elsewhere.

This resolves a device disconnect issue at system resume seen
on Intel Braswell and Apollolake, but is in no way limited to
those platforms.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mathias Nyman
2016-10-20 18:09:20 +03:00
committed by Greg Kroah-Hartman
parent a98f0e91b0
commit 54af73d02e
1 changed files with 2 additions and 2 deletions
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4
drivers/usb/host/xhci-hub.c
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@@ -1157,7 +1157,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
xhci_set_link_state(xhci, port_array, wIndex,
XDEV_RESUME);
spin_unlock_irqrestore(&xhci->lock, flags);
msleep(20);
msleep(USB_RESUME_TIMEOUT);
spin_lock_irqsave(&xhci->lock, flags);
xhci_set_link_state(xhci, port_array, wIndex,
XDEV_U0);
@@ -1401,7 +1401,7 @@ int xhci_bus_resume(struct usb_hcd *hcd)
if (need_usb2_u3_exit) {
spin_unlock_irqrestore(&xhci->lock, flags);
msleep(20);
msleep(USB_RESUME_TIMEOUT);
spin_lock_irqsave(&xhci->lock, flags);
}