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| author | Paul Cercueil <paul@crapouillou.net> | 2021-12-06 20:42:59 +0300 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-12-17 19:09:27 +0300 |
| commit | 76a096637d6381165584c6e9a21e531d1911c549 (patch) | |
| tree | ed23a5a2197c8c0cb0f1425dc80f81d2617dc87d /drivers/dma/img-mdc-dma.c | |
| parent | c8c0cda827b90aad250360c657b30b2bcdf82503 (diff) | |
| download | linux-76a096637d6381165584c6e9a21e531d1911c549.tar.xz | |
dmaengine: jz4780: Support bidirectional I/O on one channel
For some devices with only half-duplex capabilities, it doesn't make
much sense to use one DMA channel per direction, as both channels will
never be active at the same time.
Add support for bidirectional I/O on DMA channels. The client drivers
can then request a "tx-rx" DMA channel which will be used for both
directions.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20211206174259.68133-7-paul@crapouillou.net
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma/img-mdc-dma.c')
0 files changed, 0 insertions, 0 deletions