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/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
index 2c4aefeb86b5..b323d8d3185b 100644
--- a/arch/avr32/mach-at32ap/at32ap700x.c
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -606,6 +606,8 @@ static void __init genclk_init_parent(struct clk *clk)
 static struct dw_dma_platform_data dw_dmac0_data = {
         .nr_channels    = 3,
         .block_size     = 4095U,
+        .nr_masters     = 2,
+        .data_width     = { 2, 2, 0, 0 },
 };
 
 static struct resource dw_dmac0_resource[] = {