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_caps(), which may be used by a client driver to get slave SG transfer capabilities 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_caps() in the EDMA DMA Engine driver and converts the davinci_mmc driver to use dma_get_slave_sg_caps() to replace hardcoded limits. This is tested on the AM1808-EVM. Matt Porter (3): dmaengine: add dma_get_slave_sg_caps() dma: edma: add device_slave_sg_caps() support mmc: davinci: get SG segment limits with dma_get_slave_sg_caps() drivers/dma/edma.c | 17 ++++++++++++ drivers/mmc/host/davinci_mmc.c | 37 ++++++++------------------ include/linux/dmaengine.h | 40 +++++++++++++++++++++++++++++ include/linux/platform_data/mmc-davinci.h | 3 --- 4 files changed, 67 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
