2014-06-18 18:56 GMT+04:00 Alexander Popov <a13xp0p0v88@xxxxxxxxx>: > 2014-06-18 17:37 GMT+04:00 Mark Rutland <mark.rutland@xxxxxxx>: >> On Wed, Jun 18, 2014 at 11:48:10AM +0100, Alexander Popov wrote: >>> Introduce a device tree binding document for the MPC512x DMA controller >>> +Optional properties: >>> +- #dma-cells: the length of the DMA specifier, must be <1>. >>> + Each channel of this DMA controller has a peripheral request line, >>> + the assignment is fixed in hardware. This one cell >>> + in dmas property of a client device represents the channel number. >> >> Surely this is required to be able to refer to DMA channels on the >> device? > > Excuse me, I didn't understand your question. > Do you inquire about the reason of making #dma-cells an optional property? > It's optional because device tree based lookup support is made > optional (part 3/3). Mark, did I answer your question? Should I fix anything in this patch series? Hope for the reply. Alexander -- 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
