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    SubjectRE: [PATCH v3 1/1] dw_dmac: add cyclic API to DW DMA driver
    Hans-Christian Egtvedt wrote:
    > 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>
    > ---
    > drivers/dma/dw_dmac.c | 332 +++++++++++++++++++++++++++++++++++++++++++-
    > drivers/dma/dw_dmac_regs.h | 7 +-
    > include/linux/dw_dmac.h | 19 +++
    > 3 files changed, 356 insertions(+), 2 deletions(-)
    >

    Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com>


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