[v3,1/2] DW DMAC: enable memory-to-memory transfers support

Message ID 1479496356-27834-2-git-send-email-Eugeniy.Paltsev@synopsys.com
State New
Headers show

Commit Message

Eugeniy Paltsev Nov. 18, 2016, 7:12 p.m.
All known devices, which use DT for configuration, support
memory-to-memory transfers. So enable it by default, if we read
configuration from DT.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
---
 drivers/dma/dw/platform.c | 6 ++++++
 1 file changed, 6 insertions(+)

Comments

Andy Shevchenko Nov. 18, 2016, 7:27 p.m. | #1
On Fri, 2016-11-18 at 22:12 +0300, Eugeniy Paltsev wrote:
> All known devices, which use DT for configuration, support
> memory-to-memory transfers. So enable it by default, if we read
> configuration from DT.
> 
> Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>

You missed the given tag(s).

> ---
>  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;
>

Patch

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;