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From: robert.jarzmik@free.fr (Robert Jarzmik)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 2/4] dmaengine: mmp-pdma: add number of requestors
Date: Tue, 23 Feb 2016 18:45:09 +0100	[thread overview]
Message-ID: <8737sjwcbe.fsf@belgarion.home> (raw)
In-Reply-To: <1455569868-25017-2-git-send-email-robert.jarzmik@free.fr> (Robert Jarzmik's message of "Mon, 15 Feb 2016 21:57:46 +0100")

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 */

-- 
Robert

  reply	other threads:[~2016-02-23 17:45 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-15 20:57 [PATCH v2 1/4] dma: mmp_pdma: Add the #dma-requests DT property documentation Robert Jarzmik
2016-02-15 20:57 ` [PATCH v2 2/4] dmaengine: mmp-pdma: add number of requestors Robert Jarzmik
2016-02-23 17:45   ` Robert Jarzmik [this message]
2016-02-15 20:57 ` [PATCH v2 3/4] ARM: pxa: add the number of DMA requestor lines Robert Jarzmik
2016-02-15 20:57 ` [PATCH v2 4/4] dmaengine: pxa_dma: fix the maximum requestor line Robert Jarzmik
2016-02-20 21:39   ` Robert Jarzmik
2016-02-23  3:13   ` Vinod Koul
2016-02-23  7:13     ` Robert Jarzmik
2016-02-26 22:17       ` Robert Jarzmik
2016-02-18 14:38 ` [PATCH v2 1/4] dma: mmp_pdma: Add the #dma-requests DT property documentation Rob Herring

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