dmaengine: bam-dma: fix a warning about missing capabilities

Avoid the warning below triggered during dmaengine async device

WARNING: CPU: 1 PID: 1 at linux/drivers/dma/dmaengine.c:863
this driver doesn't support generic slave capabilities reporting

To do that fill mandatory .directions bit mask,
.src/dst_addr_widths and .residue_granularity dma_device fields
with appropriate values.

Signed-off-by: Stanimir Varbanov <>
Signed-off-by: Vinod Koul <>
1 file changed