linux/drivers/dma/sh
Kuninori Morimoto 1175f83cdb 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>
2017-03-27 10:06:37 +05:30
..
Kconfig dmaengine: sh: Use ARCH_RENESAS 2016-02-08 08:48:08 +05:30
Makefile dmaengine: sh: Remove unused R-Car HPB-DMAC driver 2015-12-10 09:43:33 +05:30
rcar-dmac.c dmaengine: rcar-dmac: enable descriptor mode on 40bit 2017-03-27 10:06:37 +05:30
shdma-arm.h dmaengine: shdma: Use defines instead of hardcoded numbers 2014-07-15 18:02:29 +09:00
shdma-base.c dmaengine: sh_shdma-base: convert callback to helper function 2016-08-08 08:11:43 +05:30
shdma-of.c dmaengine: Remove .owner field for driver 2014-11-06 11:54:18 +05:30
shdma-r8a73a4.c dmaengine: shdma: r8a73a4: Make dma_ts_shift[] static 2015-05-25 22:33:07 +05:30
shdma.h dmaengine: sh: Rework Kconfig and Makefile 2014-07-31 17:15:45 +05:30
shdmac.c dmaengine: Remove site specific OOM error messages on kzalloc 2016-06-21 21:35:00 +05:30
sudmac.c dmaengine: Remove site specific OOM error messages on kzalloc 2016-06-21 21:35:00 +05:30
usb-dmac.c dmaengine: usb-dmac: remove unused ‘uchan’ 2016-12-12 22:25:21 +05:30