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| author | Kunihiko Hayashi <hayashi.kunihiko@socionext.com> | 2019-12-24 01:58:27 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-12-25 19:21:05 +0100 |
| commit | 28d1dddc59f6b7fc085093e7c1e978b33f0caf4c (patch) | |
| tree | f22fdacaff5722931cd72c4cc6d0e1918aea36f4 /drivers/spi/spi-oc-tiny.c | |
| parent | Merge branch 'for-5.5' of https://git.kernel.org/pub/scm/linux/kernel/git/bro... (diff) | |
| download | linux-28d1dddc59f6b7fc085093e7c1e978b33f0caf4c.tar.xz linux-28d1dddc59f6b7fc085093e7c1e978b33f0caf4c.zip | |
spi: uniphier: Add DMA transfer mode support
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>
Diffstat (limited to 'drivers/spi/spi-oc-tiny.c')
0 files changed, 0 insertions, 0 deletions