[RFC PATCH v3] drivercore: Add driver probe deferral mechanism

[Mark Brown]

On Tue, Sep 27, 2011 at 03:08:49PM -0600, Grant Likely wrote:

> Okay, will do.  How does EPROBE_DEFER 518 sound?

Note that I'm not sure this answers the issue I was raising - the issue
isn't that the caller doesn't know what the error code means, the issue
is that in some cases the driver needs to take a decision about what
failure to get a resource means.  Does it mean that the driver can work
fine and be slightly less featureful or should it cause a deferral?