[PATCH 03/11] regulator: fixed: Support driver probe deferral

[Mark Brown]

On Thu, Mar 08, 2012 at 03:51:23PM +0100, Thierry Reding wrote:
> If the specified GPIO is not found, return -EPROBE_DEFER. This will
> cause the driver to be probed again later when the required GPIO may
> have become available.

Might be worth pushing this into gpiolib?  It seems like wanting to
defer if a GPIO is not found will be the overwhelmingly common case
given that the GPIO numbers need to be explicitly specified.
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