tree 38bf46e1fac89285410cf782ca34546fb4dc22cf
parent 073900a28d95c75a706bf40ebf092ea048c7b236
author Patrice Vilchez <patrice.vilchez@atmel.com> 1272455140 +0200
committer Greg Kroah-Hartman <gregkh@suse.de> 1272644712 -0700

USB: ohci-at91: fix power management hanging

A hanging has been detected in ohci-at91 while going in suspend to ram. This is
due to asynchronous operations between ohci reset and ohci clocks shutdown.
This patch adds the reading of the control register between the reset of the
ohci and clocks stop. This "flush the writes" idea was taken from ohci-hcd.c
file (ohci_shutdown() function).

Signed-off-by: Patrice Vilchez <patrice.vilchez@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>