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    Subject[PATCH v4 0/3] dmaengine: add slave sg transfer limits api
    Changes since v3:
    - Change api name to dma_get_slave_sg_limits() to avoid
    confusion with h/w caps which are static.

    Changes since v2:
    - Change to a separate slave sg specific api. Drop the
    generic per-channel capabilities api that is not used.

    Changes since v1:
    - Use the existing dma_transaction_type enums instead of
    adding the mostly duplicated dmaengine_apis enums

    This series adds a new dmaengine api, dma_get_slave_sg_limits(), which
    may be used by a client driver to get slave SG transfer limits for a
    particular channel. At this time, these include the max number of
    segments and max length of a segment that a channel can handle for a
    SG transfer.

    Along with the API implementation, this series implements the backend
    device_slave_sg_limits() in the EDMA DMA Engine driver and converts the
    davinci_mmc driver to use dma_get_slave_sg_limits() to replace hardcoded

    This is tested on the AM1808-EVM.

    Matt Porter (3):
    dmaengine: add dma_get_slave_sg_limits()
    dma: edma: add device_slave_sg_limits() support
    mmc: davinci: get SG segment limits with dma_get_slave_sg_limits()

    drivers/dma/edma.c | 17 +++++++++++++
    drivers/mmc/host/davinci_mmc.c | 37 ++++++++-------------------
    include/linux/dmaengine.h | 39 +++++++++++++++++++++++++++++
    include/linux/platform_data/mmc-davinci.h | 3 ---
    4 files changed, 66 insertions(+), 30 deletions(-)


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