On Thu, Jan 29, 2015 at 10:11 PM, Wolfram Sang <wsa@xxxxxxxxxxxxx> wrote: > >> > ctx->dev is probably the wrong device here. The i2c controller is not >> > DMA capable itself, you need to have a pointer to the device that actually >> > performs the DMA here. >> >> Arnd, I do agree this may not be the best identification. There is no >> representation for this on the Linux side. I could put it as NULL. However, >> there are other i2c bus drivers that seem to do the same thing. Please >> let me know what you think. > > For completeness: Those drivers need fixing! I have some doubts. I could hack up a dts node for the helper processor that is doing the dma. However, the dma master could be anything for that matter. I am not sure how I can write this in a generic manner. -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
