Re: [RFC PATCH] platform: Faciliatate the creation ofpseduo-platform busses

[Alan Cox]

> 	(possibly in a header)
> 	#ifdef CONFIG_MY_BUS
> 	#define MY_BUS_TYPE	&my_bus_type
> 	#else
> 	#define MY_BUS_TYPE	NULL
> 	#endif
> 
> /drivers/my_driver.c
> 	static struct platform_driver my_driver = {
> 		.driver	= {
> 			.name	= "my-driver",
> 			.owner	= THIS_MODULE,
> 			.bus	= MY_BUS_TYPE,
> 		},
> 	};
> 
> Which will allow the same driver to easily to used on either
> the platform bus or the newly defined bus type.

At compile time. I suspect there is an argument for having an
"ANY_BUS_TYPE" value for the devices so that you can runtime wildcard
stuff which works whatever sub-bus it is hung off.

> I believe this to be a fairly elegant and simple solution to the
> problem, but humbly RFC

It's exactly what I need to tidy up the SCU IPC devices on the new Intel
MID platforms certainly. It's also a very small patch to achieve it

Alan
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