Re: [PATCH 2/2] mfd: twl4030: add twl4030-pwrbutton as our child

[David Brownell]

On Friday 27 February 2009, Andrew Morton wrote:
> > > 
> > > 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?

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/