linux-kernel - Re: [PATCH v2 2/4] dmaengine: mmp-pdma: add number of requestors

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Date:	Tue, 23 Feb 2016 18:45:09 +0100
From:	Robert Jarzmik <robert.jarzmik@...e.fr>
To:	Haojian Zhuang <haojian.zhuang@...il.com>
Cc:	Pawel Moll <pawel.moll@....com>, Rob Herring <robh+dt@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Daniel Mack <daniel@...que.org>,
	Vinod Koul <vinod.koul@...el.com>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	dmaengine@...r.kernel.org
Subject: Re: [PATCH v2 2/4] dmaengine: mmp-pdma: add number of requestors

Robert Jarzmik <robert.jarzmik@...e.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@...e.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 */

-- 
Robert