Re: Applied "spi: omap2-mcspi: Undo broken fix for dma transfer of vmalloced buffer" to the spi tree

[Akinobu Mita <akinobu.mita@xxxxxxxxx>]

2016-05-13 0:44 GMT+09:00 Mark Brown <broonie@xxxxxxxxxx>:
> On Thu, May 12, 2016 at 10:49:15PM +0900, Akinobu Mita wrote:
>
>> If we have an optional callback to get the actual DMA transfer length
>> instead of using spi_transfer->len for each spi_transfer in the
>> framework, we can use it to determine the correct map size used by
>> spi_map_buf() in spi.c.
>
> That sounds plausible, we can also do some querying of the dmaengine at
> the same place we call that when we get around to that.  Can you try to
> come up with an implementation?

OK, I'll try and see how it looks like.
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