dmaengine: pl330: improve pl330_tx_status() function

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This patch adds possibility to read residue of DMA transfer. It's useful
when we want to know how many bytes have been transferred before we
terminate channel. It can take place, for example, on timeout interrupt.

Signed-off-by: Lukasz Czerwinski <l.czerwinski@samsung.com>
Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

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Robert Baldyga 2015-02-11 13:23:17 +01:00 • committed by Vinod Koul

parent be6893e195

commit aee4d1fac8

1 changed files with 72 additions and 2 deletions

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drivers/dma/pl330.c

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