diff options
| author | Lukas Wunner <lukas@wunner.de> | 2019-09-11 12:15:30 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-09-11 15:53:02 +0100 |
| commit | 6f6869dc97e8657e15d728c9a1ee3af2b9343990 (patch) | |
| tree | 9e925c8b0bf6123f39d0de3c05de9a78b4bcb36c /drivers/spi/spi.c | |
| parent | 4f2228cce2816e46dcac0be50a259a0311a90252 (diff) | |
dmaengine: bcm2835: Allow reusable descriptors
The DMA engine API requires DMA drivers to explicitly allow that
descriptors are prepared once and reused multiple times. Only a
single driver makes use of this functionality so far (pxa_dma.c,
to speed up pxa_camera.c).
We're about to add another use case for reusable descriptors in
the BCM2835 SPI driver, so allow that in the BCM2835 DMA driver.
Tested-by: Nuno Sá <nuno.sa@analog.com>
Tested-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Acked-by: Vinod Koul <vkoul@kernel.org>
Acked-by: Stefan Wahren <wahrenst@gmx.net>
Acked-by: Martin Sperl <kernel@martin.sperl.org>
Cc: Florian Kauer <florian.kauer@koalo.de>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Link: https://lore.kernel.org/r/bfc98a38225bbec4158440ad06cb9eee675e3e6f.1568187525.git.lukas@wunner.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi.c')
0 files changed, 0 insertions, 0 deletions