usb: host: xhci-plat: Fix timeout on removal of hot pluggable xhci controllers

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commit dcc7620cad upstream.

Upstream commit 98d74f9cea ("xhci: fix 10 second timeout on removal of
PCI hotpluggable xhci controllers") fixes a problem with hot pluggable PCI
xhci controllers which can result in excessive timeouts, to the point where
the system reports a deadlock.

The same problem is seen with hot pluggable xhci controllers using the
xhci-plat driver, such as the driver used for Type-C ports on rk3399.
Similar to hot-pluggable PCI controllers, the driver for this chip
removes the xhci controller from the system when the Type-C cable is
disconnected.

The solution for PCI devices works just as well for non-PCI devices
and avoids the problem.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Guenter Roeck 2017-03-09 15:39:37 +02:00 • committed by Greg Kroah-Hartman

parent d863767907

commit 24db1c5a1c

1 changed files with 2 additions and 0 deletions

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drivers/usb/host/xhci-plat.c

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