Hi Mark, 2016-03-01 20:46 GMT+09:00 Mark Rutland <mark.rutland@xxxxxxx>: > On Tue, Mar 01, 2016 at 12:57:00PM +0900, Masahiro Yamada wrote: >> The "arm,amba-bus" string in the of_default_bus_match_table is >> ambiguous. This prepares for killing it off in a long run. > > I don't follow the purpose of this patch. > > There's no way we can remove kernel-side support for "arm,amba-bus", as > there are DTBs that rely on it. > > If we're going to merge "arm,amba-bus" in the kernel with "simple-bus", > such that there is no distinction between the two, then that doesn't > require any DTBs to be updated. > > The only reason I would see for changing dts files would be a subsequent > clean-up for consistency, but at that point "arm,amba-bus" could be > dropped entirely. > > So this patch makes no sense to me. > > Thanks, > Mark. > This patch is derived from Rob Herring' comment "BTW, we should also kill off "amba-bus" which is an ambiguous term" in the following thread: http://lkml.iu.edu/hypermail/linux/kernel/1601.0/01822.html So, the plan would be like this: [1] Make device trees not depend on "arm,amba-bus" (this commit) [2] New device trees should no longer use "arm,amba-bus" alone. [3] Go though some releases until we do not care about the backward compatibility [4] Drop "arm,amba-bus" from of_default_bus_match_table No? -- Best Regards Masahiro Yamada -- 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
