From 258f2277a93fe0e3cdac275264d275c526170db6 Mon Sep 17 00:00:00 2001 From: Eugeniy Paltsev Date: Fri, 25 Nov 2016 17:59:06 +0300 Subject: [PATCH] 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 Signed-off-by: Eugeniy Paltsev Signed-off-by: Vinod Koul --- drivers/dma/dw/platform.c | 6 ++++++ 1 file changed, 6 insertions(+) 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;