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(parent: 7bedaa5) | patch
dmaengine: omap: add support for returning residue in tx_state method
authorRussell King <rmk+kernel@arm.linux.org.uk>
Thu, 21 Jun 2012 09:37:35 +0000 (10:37 +0100)
committerRussell King <rmk+kernel@arm.linux.org.uk>
Tue, 31 Jul 2012 11:06:21 +0000 (12:06 +0100)
commit3850e22f5146d2ff5b66f1b7460d4720d5f1b6c7
treee793d4d24faf61ebedeb96280ce4564643d1235btree
parent7bedaa5537604f34d1d63c5ec7891e559d2a61edcommit | diff
dmaengine: omap: add support for returning residue in tx_state method

Add support for returning the residue for a particular descriptor by
reading the current DMA address for the source or destination side of
the transfer as appropriate, and walking the scatterlist until we find
an entry containing the current DMA address.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
drivers/dma/omap-dma.c diff | blob | history
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