spi: dw-mid: split rx and tx callbacks when DMA
Currently driver wouldn't work properly if user asked for simplex transfer. The patch separates DMA rx and tx callbacks and finishes transfer correctly in any case. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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a5c2db96
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