dma-mapping: add {map,unmap}_resource to dma_map_ops

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Add methods to handle mapping of device resources from a physical
address. This is needed for example to be able to map MMIO FIFO
registers to a IOMMU.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

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Niklas Söderlund 2016-08-10 13:22:14 +02:00 • committed by Vinod Koul

parent 29b4817d40

commit ba409b31b3

1 changed files with 6 additions and 0 deletions

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include/linux/dma-mapping.h

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