Question2: Determine subarch type

[Russell King - ARM Linux]

On Sun, Dec 09, 2012 at 10:51:17AM +0400, Alexander Shiyan wrote:
> How can we determine the sub-architecture type from the driver code?
> For example, we are building a multi-platform kernel for subarch A and B.
> One of the drivers should be used for subarch A only, and can not be used for
> subarch B. So, we need to avoid load this driver for other sub-architectures.
> Of course, we can check all machines in the subarch with machine_is_xx() macro,
> but I think that this is not the best way to do it.
> Do we have another way to do this?

You control this by only registering the appropriate struct devices rather
than controlling this in the driver.