On Friday 27 February 2009, Andrew Morton wrote:

quoted

quoted

What has gone wrong here?

Not much I can see.  It's registering a platform_device,
but only if it could be used on this system.

Again, that all gets fixed if this is done the right way around.  Run
your probe function.  If the hardware is there, register with the core
and all the nodes appear.  If the hardware is not present: bale.

Right.  If there's no button hooked up to its "power button"
signal, don't register that "twl4030-pwrbutton" node.

The design of the whole subsystem appears to be upside down :(

You seem to be missing something.  Is it only the lack of that
tweak Felipe sent?

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