[PATCH 5/5] spi: sirf: fix spi full-duplex DMA transferring issue

[Barry Song]

2014-04-15 17:26 GMT+08:00 Mark Brown <broonie at kernel.org>:
> On Tue, Apr 15, 2014 at 09:43:24AM +0800, Barry Song wrote:
>
>> i felt strange too at the first look from internal gerrit. qipan told
>> me there is one:
>> drivers/spi/spidev.c
>
> OK, that needs fixing.  That code predates anyone doing DMA.

if it is out of specification, it seems fixing spidev.c is not enough
as spi transfer actually needs an precondition of tx!=rx now.

-barry