[PATCH 00/18] dmaengine/amba-pl08x updates

viresh kumar viresh.kumar at st.com
Fri Jul 29 07:23:52 EDT 2011


On 07/29/2011 04:49 PM, Russell King - ARM Linux wrote:
> Ok, so lets have the driver explicitly enforce one SG entry if peripheral
> flow is set.  It would also be a good idea to pass not zero length, but
> the real transfer size in the SG entry for the sake of having the API
> know the full information about the transfer.

In my case, JPEG driver doesn't know how much data to transfer. So i have to
send zero from there. Also, i am not sure why would peripheral needs to be
flow controller if the peripherals driver already know how much to transfer?

> 
> (Ok, it already only supports one SG entry, but that's something else
> which needs fixing - which may be possible now that you've cleaned up
> the LLI creation code.)
> .

Yes. I cleaned it up.

-- 
viresh



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