On Thu, May 30, 2013 at 10:31 PM, Tony Lindgren <tony@xxxxxxxxxxx> wrote: > There are many devices where the device FIFO is memory mapped to the > GPMC bus on omaps, like TUSB, OneNAND, smc911x etc. I believe the > only reason why these have not been converted to the dmaengine is > the fact that dmaengine cannot configure the DMA hardware to do > autoincrement and loop over the device FIFO. OK that seems like something pretty generic that we could just add to the struct dma_slave_config actually, something like: u32 src_fifoloop; u32 dst_fifoloop; Given in # of words on the src/dst address simply, left as zero for hitting a constant address over and over again. We'd need both to make space for device->device transfers. If this is all that is needed to convert them do DMAengine I'd surely ACK it (FWIW). Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
