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authorHans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>2009-04-01 15:47:02 +0200
committerDan Williams <dan.j.williams@intel.com>2009-04-01 15:42:34 -0700
commitd9de451989a88a2003ca06e524aca4665c0c7f06 (patch)
treea926d4ff1b73da88d5112324611a579a94e28095 /drivers/dma/ipu
parent0f571515c332e00b3515dbe0859ceaa30ab66e00 (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 'drivers/dma/ipu')
0 files changed, 0 insertions, 0 deletions