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[v2,2/4] dmaengine: mmp-pdma: add number of requestors

Message ID 1455569868-25017-2-git-send-email-robert.jarzmik@free.fr (mailing list archive)
State New, archived
Headers show

Commit Message

Robert Jarzmik Feb. 15, 2016, 8:57 p.m. UTC
The DMA chip has a fixed number of requestor lines used for flow
control. This number is platform dependent. The pxa_dma dma driver will
use this value to activate or not the flow control.

There won't be any impact on mmp_pdma driver.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
 include/linux/platform_data/mmp_dma.h | 1 +
 1 file changed, 1 insertion(+)

Comments

Robert Jarzmik Feb. 23, 2016, 5:45 p.m. UTC | #1
Robert Jarzmik <robert.jarzmik@free.fr> writes:

> The DMA chip has a fixed number of requestor lines used for flow
> control. This number is platform dependent. The pxa_dma dma driver will
> use this value to activate or not the flow control.
>
> There won't be any impact on mmp_pdma driver.
Haojian,

Even if mmp_pdma will not be impacted, it would be good to have have your ack on
this trivial patch.

Cheers.

--
Robert

[1] The patch
>
> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
> ---
>  include/linux/platform_data/mmp_dma.h | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/include/linux/platform_data/mmp_dma.h b/include/linux/platform_data/mmp_dma.h
> index 2a330ec9e2af..d1397c8ed94e 100644
> --- a/include/linux/platform_data/mmp_dma.h
> +++ b/include/linux/platform_data/mmp_dma.h
> @@ -14,6 +14,7 @@
>  
>  struct mmp_dma_platdata {
>  	int dma_channels;
> +	int nb_requestors;
>  };
>  
>  #endif /* MMP_DMA_H */
diff mbox

Patch

diff --git a/include/linux/platform_data/mmp_dma.h b/include/linux/platform_data/mmp_dma.h
index 2a330ec9e2af..d1397c8ed94e 100644
--- a/include/linux/platform_data/mmp_dma.h
+++ b/include/linux/platform_data/mmp_dma.h
@@ -14,6 +14,7 @@ 
 
 struct mmp_dma_platdata {
 	int dma_channels;
+	int nb_requestors;
 };
 
 #endif /* MMP_DMA_H */