On Friday 07 March 2014, Santosh Shilimkar wrote: > On Friday 07 March 2014 11:55 AM, Rob Herring wrote: > > > Thinking about this some more, if the arch is always coherent or > > always non-coherent, then the default ops are always fine. In that > > case set_arch_dma_coherent_ops is always a nop and of_dma_is_coherent > > is a don't care. > > > Hmmm.. I guess you are right. In that case we can drop the need of > config option. A compile-time config option clearly would not work here, because it breaks multiplatform support when some platforms are different from others. I can still see the possible need for a global run-time setting though, to give some platform init code the ability to override the DT flags when it knows better. That is probably what you want to do on keystone without LPAE. Arnd -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
