[ Upstream commit 5afcd14cfc7fed1bcc8abcee2cef82732772bfc2 ]

The old MIPS implementation of dma_cache_sync() didn't use the dev argument,
but commit c9eb6172 ("dma-mapping: turn dma_cache_sync into a
dma_map_ops method") changed that, so we now need to set dev.parent.
Signed-off-by: NThomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>