On 03/26/2015 12:50 PM, Vinod Koul wrote: > On Wed, Mar 11, 2015 at 03:23:24PM +0200, Peter Ujfalusi wrote: >> DMA routers are transparent devices used to mux DMA requests from >> peripherals to DMA controllers. They are used when the SoC integrates more >> devices with DMA requests then their controller can handle. >> DRA7x is one example of such SoC, where the sDMA can hanlde 128 DMA request >> lines, but in SoC level it has 205 DMA requests. >> >> The of_dma_router will be registered as of_dma_controller with special >> xlate function and additional parameters and the code will translate and >> requests a DMA channel from the real DMA controller. >> This way the router can be transparent for the system while remaining generic >> enough to be used in different environments. >> > Looks fine, was expecting a Documentation updates as well, but that can come > as follow up patch too I have added the DT binding document since this series adds support for routers for platforms booting with DT: Documentation/devicetree/bindings/dma/dma.txt | 28 ++++++++ -- Péter -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
