dmaengine: axi-dmac: Split too large segments

Browse source

The axi-dmac driver currently rejects transfers with segments that are
larger than what the hardware can handle.

Re-work the driver so that these large segments are split into multiple
segments instead where each segment is smaller or equal to the maximum
segment size.

This allows the driver to handle transfers with segments of arbitrary size.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Bogdan Togorean <bogdan.togorean@analog.com>
Signed-off-by: Alexandru Ardelean <alex.ardelean@analog.com>
Signed-off-by: Vinod Koul <vkoul@kernel.org>

...

This commit is contained in:

Lars-Peter Clausen 2019-03-08 15:02:35 +02:00 • committed by Vinod Koul

parent b45aef3aef

commit 921234e0c5

1 changed files with 61 additions and 20 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

81

drivers/dma/dma-axi-dmac.c

View file