Commit f73bb9b3 authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Vinod Koul

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: default avatarArnd Bergmann <arnd@arndb.de>
Reported-by: default avatarFengguang Wu <fengguang.wu@intel.com>
Acked-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
parent 8bb96604
...@@ -1276,9 +1276,9 @@ static struct dma_chan *dw_dma_xlate(struct of_phandle_args *dma_spec, ...@@ -1276,9 +1276,9 @@ static struct dma_chan *dw_dma_xlate(struct of_phandle_args *dma_spec,
if (dma_spec->args_count != 3) if (dma_spec->args_count != 3)
return NULL; return NULL;
fargs.req = be32_to_cpup(dma_spec->args+0); fargs.req = dma_spec->args[0];
fargs.src = be32_to_cpup(dma_spec->args+1); fargs.src = dma_spec->args[1];
fargs.dst = be32_to_cpup(dma_spec->args+2); fargs.dst = dma_spec->args[2];
if (WARN_ON(fargs.req >= DW_DMA_MAX_NR_REQUESTS || if (WARN_ON(fargs.req >= DW_DMA_MAX_NR_REQUESTS ||
fargs.src >= dw->nr_masters || fargs.src >= dw->nr_masters ||
......
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