Re: [RFC PATCH 6/6] spi: spi-s3c64xx: Move DMA initialization

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On Tue, Sep 10, 2013 at 03:16:59PM +0200, Łukasz Czerwiński wrote:
> On 09/10/2013 02:03 PM, Mark Brown wrote:
> >On Tue, Sep 10, 2013 at 01:24:01PM +0200, Łukasz Czerwiński wrote:

> >>For 16kB buffer upload time is reduced from ~90ms to ~80ms (I tested
> >>with S5C73M3 355560B transfer). If you think that performance
> >>increase isn't valuable we should skip that patch.

> >That does seem worthwhile.  Is that just a single transfer in isolation?

> I gave you summary time when firmware is transferred via 22x16kB blocks.
> Each transfer was isolated.

OK, so that's the per-transfer number?  I'm just wondering if moving it
to prepare/unprepare would achieve the same effect here.

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