Re: [PATCH] dmaengine: add CSR SiRFprimaII DMAC driver

[Vinod Koul]

On Fri, 2011-09-09 at 16:18 +0800, Barry Song wrote:
> 2011/9/9 Vinod Koul <vkoul@xxxxxxxxxxxxx>:
> > Looks like Jassi got a user for his proposed API. I am not sure whats
> > going on with TI folks, they never showed up here @LPC.
> 
> yes, i can definitely be an user of Jassi's new generic api. it seems
> the api is just there for dma in 2d.
> 
> Jassi prefer to use a transfer type instead of a control command.
> though we will not really change the interleaved setting for every
> transfer(it is more possible for one device, we will not change the
> xlen/ylen/dma_width setting in the whole life period), i do believe
> the transfer type is enough flexible for my possible applications to
> change xlen, ylen and dma_width in different transfers.
> 
> as we know, interleaved DMA can also be used for audio driver. for
> some audio controllers, if there are n channels, it can't tranfer the
> whole audio frame to sound card by one dma channel, and it needs to
> tranfer every channel by separate dma. typically, we can define this
> kind of xfer to skip other n-1 channel.
> 
> Jassi, you might think my reply as an ACK to "[PATCH] DMAEngine:
> Define generic transfer request api".
Great, can you two redo patch along with this driver as user of new
API :)

-- 
~Vinod Koul
Intel Corp.

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