On Thu, Feb 26, 2015 at 04:24:53PM -0600, Rob Herring wrote: > We really shouldn't do private implementation here. It there really > any reason not to allow readq/writeq generically for 32-bit or just > for arm32?
My argument has always been that drivers should do the emulation of 64-bit accesses when there is no native support. IO registers tend to have side effects when read/written. How do we know whether the low-half or the high-half should be written first? This isn't something that an architecture can really dictate. What may be right for one hardware device may not be correct for another. -- FTTC broadband for 0.8mile line: currently at 10.5Mbps down 400kbps up according to speedtest.net. -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
