On Thu, 2017-02-23 at 16:41 -0800, Dan Williams wrote: +AD4- On Thu, Feb 23, 2017 at 4:13 PM, Vinod Koul +ADw-vinod.koul+AEA-intel.com+AD4- +AD4- wrote: +AD4- +AD4- +AD4- +AD4- There have been discussions on need for change of dmaengine API for +AD4- +AD4- a) allow sleepy invocation of the prepare descriptor so that drivers +AD4- +AD4- can +AD4- +AD4- do the runtime pm (maybe move into core as well) +AD4- +AD4- b) split the prepare operation to allocate and new prepare methods +AD4- +AD4- I'm wondering if you should you go even further and move to a more +AD4- idiomatic model where a generic request is prepared outside the driver +AD4- and passed in, rather than the current situation of requiring the +AD4- driver to wrap a dma+AF8-async+AF8-tx+AF8-descriptor inside it's internal command +AD4- structure. Yes that's certainly a good idea. I will work on that on my way back home. good use of a long flight time :) -- +AH4-Vinod-- 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
