linux-kernel - Re: dmaengine: dw-dmac: Custom cyclic API (Why?)

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Message-ID: <99eeb12c-fd4f-7982-4832-61116fd641d3@synopsys.com>
Date:   Fri, 30 Dec 2016 12:05:25 +0000
From:   Jose Abreu <Jose.Abreu@...opsys.com>
To:     "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        <vireshk@...nel.org>, <andriy.shevchenko@...ux.intel.com>
Subject: Re: dmaengine: dw-dmac: Custom cyclic API (Why?)

++dw-dmac Maintainers


On 30-12-2016 11:32, Jose Abreu wrote:
> Hi All,
>
>
> I am going to work with dw-dmac AHB controller and I wanted to
> use SND_DMAENGINE_PCM. In order to use this, a standard DMA
> driver with cyclic support is needed. I found out that dw-dmac is
> capable of cyclic transfers but instead of using the DMA engine
> standard cyclic API it uses a custom API. Is there any specific
> reason for this? What is the effort to change the custom API to a
> standard DMA engine cyclic API?
>
>
> Best regards,
>
> Jose Miguel Abreu
>