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28d1dddc59
This adds DMA transfer mode support for UniPhier SPI controller. Since this controller requires simulteaneous transmission and reception, this indicates SPI_CONTROLLER_MUST_RX and SPI_CONTROLLER_MUST_TX. Because the supported dma controller has alignment restiction, there is also a restriction that 'maxburst' parameters in dma_slave_config corresponds to one word width. Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Link: https://lore.kernel.org/r/1577149107-30670-6-git-send-email-hayashi.kunihiko@socionext.com Signed-off-by: Mark Brown <broonie@kernel.org> |
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