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author | Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> | 2009-04-01 09:47:02 -0400 |
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committer | Dan Williams <dan.j.williams@intel.com> | 2009-04-01 18:42:34 -0400 |
commit | d9de451989a88a2003ca06e524aca4665c0c7f06 (patch) | |
tree | a926d4ff1b73da88d5112324611a579a94e28095 /fs/jbd2/journal.c | |
parent | 0f571515c332e00b3515dbe0859ceaa30ab66e00 (diff) |
dw_dmac: add cyclic API to DW DMA driver
This patch adds a cyclic DMA interface to the DW DMA driver. This is
very useful if you want to use the DMA controller in combination with a
sound device which uses cyclic buffers.
Using a DMA channel for cyclic DMA will disable the possibility to use
it as a normal DMA engine until the user calls the cyclic free function
on the DMA channel. Also a cyclic DMA list can not be prepared if the
channel is already active.
Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'fs/jbd2/journal.c')
0 files changed, 0 insertions, 0 deletions