dmaengine: dw: fix cyclic transfer callbacks

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commit 2895b2cad6 upstream.

Cyclic transfer callbacks rely on block completion interrupts which were
disabled in commit ff7b05f29f ("dmaengine/dw_dmac: Don't handle block
interrupts").  This re-enables block interrupts so the cyclic callbacks
can work.  Other transfer types are not affected as they set the INT_EN
bit only on the last block.

Fixes: ff7b05f29f ("dmaengine/dw_dmac: Don't handle block interrupts")
Signed-off-by: Mans Rullgard <mans@mansr.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Mans Rullgard 2016-01-11 13:04:29 +00:00 • committed by Greg Kroah-Hartman

parent 4f29e54453

commit 7ed338d4a9

1 changed files with 15 additions and 6 deletions

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drivers/dma/dw/core.c

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