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 limits. 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(-) -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
