dmaengine: DW DMAC: enable memory-to-memory transfers support

All known devices, which use DT for configuration, support
memory-to-memory transfers. So enable it by default, if we read
configuration from DT.

Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/dma/dw/platform.c b/drivers/dma/dw/platform.c
index 5bda0eb9f393..aa7a5c1b9bf8 100644
--- a/drivers/dma/dw/platform.c
+++ b/drivers/dma/dw/platform.c
@@ -129,6 +129,12 @@ dw_dma_parse_dt(struct platform_device *pdev)
         if (of_property_read_bool(np, "is_private"))
                 pdata->is_private = true;
 
+        /*
+         * All known devices, which use DT for configuration, support
+         * memory-to-memory transfers. So enable it by default.
+         */
+        pdata->is_memcpy = true;
+
         if (!of_property_read_u32(np, "chan_allocation_order", &tmp))
                 pdata->chan_allocation_order = (unsigned char)tmp;