linux-kernel - Re: [PATCH v2] dmaengine: pl330: make platform data optional

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Message-ID: <CABb+yY1BydX=YMe_nenkYr+bsH-3k3gObO3qav5AA5DrxMP=2Q@mail.gmail.com>
Date:	Tue, 26 Jul 2011 10:09:51 +0530
From:	Jassi Brar <jassisinghbrar@...il.com>
To:	Rob Herring <robherring2@...il.com>
Cc:	Rob Herring <rob.herring@...xeda.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Vinod Koul <vkoul@...radead.org>,
	Dan Williams <dan.j.williams@...el.com>
Subject: Re: [PATCH v2] dmaengine: pl330: make platform data optional

On Tue, Jul 26, 2011 at 2:35 AM, Rob Herring <robherring2@...il.com> wrote:
> From: Rob Herring <rob.herring@...xeda.com>
>
> The pl330 needs platform data for describing peripheral connections, but
> some platforms may only support memory to memory dma channels. In this
> case, we can probe for how many channels there are and don't need the
> platform data.
>
> As memcpy requests don't need channel private data to hold peripheral
> info, allow private data to be NULL in this case.
>
> Signed-off-by: Rob Herring <rob.herring@...xeda.com>
> Cc: Jassi Brar <jassisinghbrar@...il.com>
> Cc: Vinod Koul <vkoul@...radead.org>
> Cc: Dan Williams <dan.j.williams@...el.com>
>
> ---
> Vinod, Can you apply this updated version instead?
>
> v2:
>  - Added null ptr check
>
>  drivers/dma/pl330.c |   64 ++++++++++++++++++++++++++++----------------------
>  1 files changed, 36 insertions(+), 28 deletions(-)

Acked-by: Jassi Brar <jassisinghbrar@...il.com>
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