[PATCH v6 1/2] DW DMAC: enable memory-to-memory transfers support
STALE3596d
REVIEWED: 8 (8M)
From: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Date: 2016-11-25 14:59:55
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Subsystem:
dma generic offload engine subsystem, synopsys designware dmac driver, the rest · Maintainers:
Vinod Koul, Viresh Kumar, Linus Torvalds
Revision v6 of 6 in this series; 1 review trailer (1 from subsystem maintainers).
Revisions (6)
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> --- 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 5bda0eb..aa7a5c1 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;
--
2.5.5