It is good practice to mask and clear pending irqs on init. We already
mask all irqs, so also clear the bridge irq cause register.
Signed-off-by: NSebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: NEzequiel Garcia <ezequiel.garcia@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.10+
Signed-off-by: NJason Cooper <jason@lakedaemon.net>