This series adds support for the IMG Multi-threaded DMA Controller (MDC) which is found on IMG SoCs. Currently this driver only supports the variant found on the MIPS-based Pistachio SoC.
The MDC supports slave and memory-to-memory transfers on up to 32 channels. Requests from channels are handled by MDC threads. Thread assignments are per-channel and are specified in the device-tree. Tested on a platform based on the Pistachio SoC with additional patches. Support for Pistachio will be submitted later. Based on Vinod's slave-dma/next. I can rebase on Maxime's device_control refactoring [1] if necessary. Andrew Bresticker (2): dmaengine: Add binding document for IMG MDC dmaengine: Add driver for IMG MDC [1] https://lkml.org/lkml/2014/10/28/1067 .../devicetree/bindings/dma/img-mdc-dma.txt | 57 ++ drivers/dma/Kconfig | 9 + drivers/dma/Makefile | 1 + drivers/dma/img-mdc-dma.c | 1016 ++++++++++++++++++++ 4 files changed, 1083 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/img-mdc-dma.txt create mode 100644 drivers/dma/img-mdc-dma.c -- 2.1.0.rc2.206.gedb03e5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
