linux-kernel - Re: [PATCH v3] dmaengine: s3c24xx: Add dma_slave

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Date:   Mon, 26 Sep 2016 23:13:35 +0530
From:   Vinod Koul <vinod.koul@...el.com>
To:     Sam Van Den Berge <sam.van.den.berge@...enet.be>
Cc:     dmaengine@...r.kernel.org, k.kozlowski@...sung.com,
        kgene@...nel.org, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] dmaengine: s3c24xx: Add dma_slave_map for s3c2440
 devices

On Thu, Sep 22, 2016 at 08:51:15PM +0200, Sam Van Den Berge wrote:
> This patch updates the s3c24xx dma driver to be able to pass a
> dma_slave_map array via the platform data. This is needed to
> be able to use the new, simpler dmaengine API [1].
> I used the virtual DMA channels as a parameter for the dma_filter
> function. By doing that, I could reuse the existing filter function in
> drivers/dma/s3c24xx-dma.c.
> 
> I have tested this on my mini2440 board with the audio driver.
> According to my observations, dma_request_slave_channel in the
> function dmaengine_pcm_new in the file
> sound/soc/soc-generic-dmaengine-pcm.c now returns a valid DMA channel
> whereas before no DMA channel was returned at that point.
> 
> Entries for DMACH_XD0, DMACH_XD1 and DMACH_TIMER are missing because I
> don't realy know which driver to use for these.

Applied, thanks

-- 
~Vinod