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author | Jon Hunter <jon-hunter@ti.com> | 2012-09-14 17:41:57 -0500 |
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committer | Vinod Koul <vinod.koul@intel.com> | 2013-01-06 20:57:45 -0800 |
commit | 9a6cecc846169159bfce511f4c0034bb96eea1ca (patch) | |
tree | e5d0dcef464741a0988e4355744a33cb55e6bcd4 /mm | |
parent | d1c3ed669a2d452cacfb48c2d171a1f364dae2ed (diff) | |
download | linux-3.10-9a6cecc846169159bfce511f4c0034bb96eea1ca.tar.gz linux-3.10-9a6cecc846169159bfce511f4c0034bb96eea1ca.tar.bz2 linux-3.10-9a6cecc846169159bfce511f4c0034bb96eea1ca.zip |
dmaengine: add helper function to request a slave DMA channel
Currently slave DMA channels are requested by calling dma_request_channel()
and requires DMA clients to pass various filter parameters to obtain the
appropriate channel.
With device-tree being used by architectures such as arm and the addition of
device-tree helper functions to extract the relevant DMA client information
from device-tree, add a new function to request a slave DMA channel using
device-tree. This function is currently a simple wrapper that calls the
device-tree of_dma_request_slave_channel() function.
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Benoit Cousson <b-cousson@ti.com>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <djbw@fb.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Reviewed-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions