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| author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2017-03-22 04:22:36 +0000 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2017-03-27 10:06:37 +0530 |
| commit | 1175f83cdb7a321b8b7b061d18846d58490b2654 (patch) | |
| tree | 49b67bd2dce057379888ea22c4b7cfe7d102ecae /drivers/dma/hsu | |
| parent | 6f3125ceb66120796f62e7797a1a313418a5911a (diff) | |
| download | talos-obmc-linux-1175f83cdb7a321b8b7b061d18846d58490b2654.tar.gz talos-obmc-linux-1175f83cdb7a321b8b7b061d18846d58490b2654.zip | |
dmaengine: rcar-dmac: enable descriptor mode on 40bit
SYS-DMAC can use 40bit address transfer, and it supports Descriptor
Mode too. Current SYS-DMAC driver disables Descriptor Mode if it was
40bit address today. But it can use Descriptor Mode with 40bit if
transfer Source/Destination address are located in same 4GiB region
in the 40 bit address space.
This patch enables it if all condition was clear
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/hsu')
0 files changed, 0 insertions, 0 deletions
