spi: qup: Setup DMA mode correctly

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To operate in DMA mode, the buffer should be aligned and
the size of the transfer should be a multiple of block size
(for v1). And the no. of words being transferred should
be programmed in the count registers appropriately.

Signed-off-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Varadarajan Narayanan <varada@codeaurora.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Varadarajan Narayanan 2017-07-28 12:22:49 +05:30 • committed by Mark Brown

parent b702b9fb39

commit 32ecab999f

1 changed files with 55 additions and 63 deletions

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drivers/spi/spi-qup.c

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