dma: i.MX31 IPU DMA robustness improvements

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Add DMA error handling to the ISR, move common code fragments to functions, fix
scatter-gather element queuing in the ISR, survive channel freeing and
re-allocation in a quick succession.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

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Guennadi Liakhovetski 2009-03-25 09:13:24 -07:00 • committed by Dan Williams

parent 234f2df56f

commit 8d47bae004

1 changed files with 181 additions and 84 deletions

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drivers/dma/ipu/ipu_idmac.c

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