dw_dmac: autoconfigure data_width or get it via platform data

Not all of the controllers support the 64 bit data width. Make it configurable
via platform data. The driver will try to get a value from the component
parameters, otherwise it will use the platform data.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm/mach-spear13xx/spear13xx.c b/arch/arm/mach-spear13xx/spear13xx.c
index c64d8123518f..6a7dfe1857b6 100644
--- a/arch/arm/mach-spear13xx/spear13xx.c
+++ b/arch/arm/mach-spear13xx/spear13xx.c
@@ -79,6 +79,8 @@ struct dw_dma_platform_data dmac_plat_data = {
         .chan_allocation_order = CHAN_ALLOCATION_DESCENDING,
         .chan_priority = CHAN_PRIORITY_DESCENDING,
         .block_size = 4095U,
+        .nr_masters = 2,
+        .data_width = { 3, 3, 0, 0 },
 };
 
 void __init spear13xx_l2x0_init(void)