Messages in this thread | | | Date | Thu, 14 Apr 2016 14:51:39 -0700 | From | Greg Kroah-Hartman <> | Subject | Re: [PATCH v7 1/2] drivers: base: add support for registering notifier about deferred probe |
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On Thu, Apr 14, 2016 at 10:33:22PM +0100, Russell King - ARM Linux wrote: > The problem that's being addressed here is that there's no way at the > moment to know when the drivers on a different bus (namely the platform > bus) have probed and are providing the clock and power domain resources > necessary to be able to read these identifying values. > > I guess if you don't like a notifier, the other alternative is to > setup a delayed workqueue and have the workqueue repeatedly attempt > to register the devices until they all succeed. That's not > particularly nice, because we'd be wasting CPU cycles running > that workqueue for no reason until all the devices get registered.
I like that idea, it handles the issue of this crazy hardware where it belongs, in that bus subsystem :)
thanks,
greg k-h
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