dmaengine: rcar-dmac: Add helpers for clearing DMA channel status

Extract the code to clear the status of one or all channels into their
own helpers, to prepare for the different handling of the R-Car V3U SoC.

Signed-off-by: Geert Uytterhoeven <[email protected]>
Tested-by: Wolfram Sang <[email protected]>
Tested-by: Yoshihiro Shimoda <[email protected]>
Reviewed-by: Wolfram Sang <[email protected]>
Reviewed-by: Laurent Pinchart <[email protected]>
Reviewed-by: Yoshihiro Shimoda <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>

0 files changed, 0 insertions, 0 deletions