From: Alan Stern <stern@rowland.harvard.edu>
Date: Wed, 11 Jul 2012 15:22:31 +0000 (-0400)
Subject: USB: EHCI: use hrtimer for controller death
X-Git-Tag: v3.6-rc1~101^2~36
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bf6387bcd16975ba8952b094f262a359d74e1c8a;p=pandora-kernel.git

USB: EHCI: use hrtimer for controller death

This patch (as1578) adds an hrtimer event to handle the death of an
EHCI controller.  When a controller dies, it doesn't necessarily stop
running right away.  The new event polls at 1-ms intervals to see when
all activity has safely stopped.  This replaces a busy-wait polling
loop in the current code.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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