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dmaengine: mmp-pdma: add number of requestors

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commit c283e41ef32442f41e7180f9bb1c5aedf9255bfe upstream.

The DMA chip has a fixed number of requestor lines used for flow
control. This number is platform dependent. The pxa_dma dma driver will
use this value to activate or not the flow control.

There won't be any impact on mmp_pdma driver.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Robert Jarzmik 2016-02-15 21:57:46 +01:00 • committed by Greg Kroah-Hartman
parent 6124ed1a71
commit a85f176c85
1 changed files with 1 additions and 0 deletions
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1
include/linux/platform_data/mmp_dma.h
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@ -14,6 +14,7 @@
struct mmp_dma_platdata {
int dma_channels;
int nb_requestors;
};
#endif /* MMP_DMA_H */