dmaengine: dw_dma: fix endianess for DT xlate function

As reported by Wu Fengguang's build robot tracking sparse warnings, the
dma_spec arguments in the dw_dma_xlate are already byte swapped on
little-endian platforms and must not get swapped again. This code is
currently not used anywhere, but will be used in Linux 3.10 when the
ARM SPEAr platform starts using the generic DMA DT binding.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index c599558faedaf29128a5a10bb15eaed7dbc5d41c..eb81ec9d5b91fec66b641986e63eaf1ed716b624 100644 (file)
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -1276,9 +1276,9 @@ static struct dma_chan *dw_dma_xlate(struct of_phandle_args *dma_spec,
        if (dma_spec->args_count != 3)
                return NULL;
 
-       fargs.req = be32_to_cpup(dma_spec->args+0);
-       fargs.src = be32_to_cpup(dma_spec->args+1);
-       fargs.dst = be32_to_cpup(dma_spec->args+2);
+       fargs.req = dma_spec->args[0];
+       fargs.src = dma_spec->args[1];
+       fargs.dst = dma_spec->args[2];
 
        if (WARN_ON(fargs.req >= DW_DMA_MAX_NR_REQUESTS ||
                    fargs.src >= dw->nr_masters ||