[PATCH v7] spi: sun4i: Allow transfers larger than FIFO size

Maxime Ripard maxime.ripard at free-electrons.com
Wed Oct 26 01:55:28 PDT 2016


On Wed, Oct 26, 2016 at 12:00:30AM -0700, Alexandru Gagniuc wrote:
> This is the seventh attempt to get this patch in. I was prompted to look
> into this again as someone recently remarked:
> 
> " cool, to bad spi does not work properly on allwinner..."
> 
> Two and a half years ago,  we were told this will all be handled with DMA.
> A year or so ago, we were told this will all be handled with DMA.
> A week or so ago, we were told this will all be handled with DMA.
> 
> See the pattern?
> When DMA finally takes over, this fallback path is not mutually exclusive.

I definitely agree, and we had this patch in the CHIP kernel for quite
some time, working like a charm.

I was planning to respin it in the next few days, glad to see you took
care of it :)

Mark, any comments on this? For the record, it already has my Acked-by.

Thanks,
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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