tree 16117f9e46917e374c0f857d798cb5bcb46f6771
parent 0eb0226c9d819fd2af31ae4fc52bbca81c215369
author Marcelo Tosatti <marcelo@kvack.org> 1187658807 -0700
committer Greg Kroah-Hartman <gregkh@suse.de> 1192226118 -0700

USB: EHCI restart speedup

It is not necessary to powerdown the ports on ehci_pci_reinit() when the
chip reset already did that.  Removing this saves 20ms during restart
after poweroff paths (which OLPC uses a lot).

To ensure driver startup then behaves consistently, force a reset during
driver startup.  (Not doing this was an accident of some previous changes
to the init sequence.)

Make the corresponding change in the PS3 support.  It's not clear what
ehci-fsl should do here; it has similar code to the PS3.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: <rvinson@mvista.com>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>