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| author | Robert Jarzmik <robert.jarzmik@free.fr> | 2015-05-25 23:29:22 +0200 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2015-05-29 11:12:48 +0200 |
| commit | c91134d9194478144ba579ca6efeddf628055650 (patch) | |
| tree | 823dc2fbd08aae592544fa3c0b59813d4303fb81 /include | |
| parent | dmaengine: pxa_dma: add debug information (diff) | |
| download | linux-c91134d9194478144ba579ca6efeddf628055650.tar.xz linux-c91134d9194478144ba579ca6efeddf628055650.zip | |
dmaengine: pxa_dma: add support for legacy transition
In order to achieve smooth transition of pxa drivers from old legacy dma
handling to new dmaengine, introduce a function to "hide" dma physical
channels from dmaengine.
This is temporary situation where pxa dma will be handled in 2 places :
- arch/arm/plat-pxa/dma.c
- drivers/dma/pxa_dma.c
The resources, ie. dma channels, will be controlled by pxa_dma. The
legacy code will request or release a channel with
pxad_toggle_reserved_channel().
This is not very pretty, but it ensures both legacy and dmaengine
consumers can live in the same kernel until the conversion is done.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions