dw_dmac: autoconfigure block_size or use platform data

The maximum block size is a configurable parameter for the chip. So, driver
will try to get it from the encoded component parameters. Otherwise it will
come from 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>

2 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm/mach-spear13xx/spear13xx.c b/arch/arm/mach-spear13xx/spear13xx.c
index cf936b106e27..c64d8123518f 100644
--- a/arch/arm/mach-spear13xx/spear13xx.c
+++ b/arch/arm/mach-spear13xx/spear13xx.c
@@ -78,6 +78,7 @@ struct dw_dma_platform_data dmac_plat_data = {
         .nr_channels = 8,
         .chan_allocation_order = CHAN_ALLOCATION_DESCENDING,
         .chan_priority = CHAN_PRIORITY_DESCENDING,
+        .block_size = 4095U,
 };
 
 void __init spear13xx_l2x0_init(void)
diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
index 0445c4fd67e3..2c4aefeb86b5 100644
--- a/arch/avr32/mach-at32ap/at32ap700x.c
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -605,6 +605,7 @@ static void __init genclk_init_parent(struct clk *clk)
 
 static struct dw_dma_platform_data dw_dmac0_data = {
         .nr_channels    = 3,
+        .block_size     = 4095U,
 };
 
 static struct resource dw_dmac0_resource[] = {