Hi, this short series adds support for R-Car Gen-3 Internal DMAC to the SDHI driver. The approach taken is as follows: 1. Refactor the TMIO DMA code so that it is provided by a set of callbacks rather than compiled-in function calls; Refactor the DMA SDHI to use this. 2. Rename tmio_mmc_dma.c as renesas_sdhi_sysc_dmac.c which better reflects what it is is, particularly after step 2. 3. Add max_segs restriction 4. Add Gen3 DMA code as a separate set of callbacks Changes since v3: * Cleanup and more renaming as suggested by Wolfram Sang * max_segs restriction Testing: As described on http://elinux.org/Tests:r-car-gen3-sdhi-dma Performance appears to be less than expected, 4.7Mb/s read for a card observed to read at 20Mb/s on r8a7790/Koelsch. I will inviestigate this further. Simon Horman (2): mmc: sh_mobile_sdhi, tmio: make dma more modular mmc: sh_mobile_sdhi: rename DMA source file as renesas_sdhi_sysc_dmac.c Yoshihiro Shimoda (3): mmc: tmio: add max_segs and max_blk_count in tmio_mmc_data mmc: sh_mobile_sdhi: add some SoC specific data for R-Car Gen3 mmc: renesas_sdhi: add support for R-Car Gen3 SDHI DMAC drivers/mmc/host/Kconfig | 18 ++ drivers/mmc/host/Makefile | 7 +- drivers/mmc/host/renesas_sdhi_internal_dmac.c | 192 +++++++++++++++++++++ .../{tmio_mmc_dma.c => renesas_sdhi_sysc_dmac.c} | 55 ++++-- drivers/mmc/host/sh_mobile_sdhi.c | 49 ++++++ drivers/mmc/host/tmio_mmc.h | 39 +---- drivers/mmc/host/tmio_mmc_pio.c | 49 +++++- include/linux/mfd/tmio.h | 2 + 8 files changed, 360 insertions(+), 51 deletions(-) create mode 100644 drivers/mmc/host/renesas_sdhi_internal_dmac.c rename drivers/mmc/host/{tmio_mmc_dma.c => renesas_sdhi_sysc_dmac.c} (83%) -- 2.7.0.rc3.207.g0ac5344
