On Mon, Dec 12, 2011 at 09:16:28PM +0530, Thomas Abraham wrote:

A device node pointer is added to generic pm domain structure to associate
the domain with a node in the device tree. The platform code parses the
device tree to find available nodes representing the generic power domain,
instantiates the available domains and initializes them by calling
pm_genpd_init().

This sounds useful but the binding needs to be documented properly.