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    SubjectRe: [PATCH] drivercore: Add driver probe deferral mechanism
    On Tue, Jul 05, 2011 at 11:17:46AM -0600, Grant Likely wrote:
    > On Tue, Jul 5, 2011 at 10:36 AM, Greg KH <gregkh@suse.de> wrote:
    > > On Tue, Jul 05, 2011 at 10:28:37AM -0600, Grant Likely wrote:
    > >> On Tue, Jul 5, 2011 at 10:11 AM, Kay Sievers <kay.sievers@vrfy.org> wrote:
    > >> > On Tue, Jul 5, 2011 at 17:50, Greg KH <gregkh@suse.de> wrote:
    > >> >
    > >> >> I wonder if doing this all from a workqueue in the first place is going
    > >> >> to cause problems as probe isn't normally done this way at all.
    > >> >
    > >> > Yeah, I would expect unforeseen problems with the async thread too.
    > >> > It's probably all solvable, but it sounds troublesome to find out if
    > >> > things go wrong.
    > >> >
    > >> > We have sync hooks (BUS_NOTIFY_*) where any kind of code can subscribe
    > >> > to when devices get added or get bound to a driver. Can't the code
    > >> > that relies on later hookups to already existing devices/bindings not
    > >> > just plug into that?
    > >>
    > >> I tried that.  It resulted in a lot of complexity that each driver
    > >> needs to implement correctly which is why I started looking for a
    > >> different way to go about it.
    > >
    > > No, the bus that wants this just has to do it, not the drivers
    > > themselves, right?
    >
    > It's not about the bus_type, and there is nothing that the bus can do
    > to solve this problem because it the dependencies are completely
    > orthogonal to the bus. ie. what does an i2c bus know about the audio
    > path to a codec? The problem must be solved at the driver scope.

    Ok, let's look at your next implementation and see how it goes.
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