spi: dw-mid: split dma_setup() from dma_transfer()

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The patch splits DMA preparatory code to dma_setup() callback. The change also
converts transfer_one() to program DMA whenever the transfer is DMA mapped. The
change is a follow up of the converion to use SPI core transfer_one_message().
Since the DMA mapped transfers can be interleaved with PIO ones the DMA related
configuration should respect that.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Andy Shevchenko 2015-03-09 16:48:46 +02:00 • committed by Mark Brown

parent e31abce778

commit 9f14538ecd

3 changed files with 21 additions and 23 deletions

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17

drivers/spi/spi-dw-mid.c

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23

drivers/spi/spi-dw.c

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4

drivers/spi/spi-dw.h

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