[PATCH RFC 3/3] PM / Domains: Introduce generic PM domain for cpu domain

Lina Iyer [off-list ref] writes:

On Mon, Jun 15 2015 at 12:43 -0600, Kevin Hilman wrote:

quoted

Lina Iyer [off-list ref] writes:

quoted

On Wed, Jun 10 2015 at 15:38 -0600, Kevin Hilman wrote:

quoted

Lina Iyer [off-list ref] writes:

quoted

I'm pretty sure the generic code will already add devices to genpds if
the genpd is using the of_genpd_* stuff.  That is why I'm wondering why
the extra stuff for CPUs is needed.

I dont see that automatically happening. When I attach a device, it
finds the corresponding genpd provider and attaches the device.  But I
dont see in any code that creates genpd and find the related device
nodes and adds them to the genpd.

[summary from our IRC discussion]

You still need to create the genpd, but it's dev_pm_domain_attach()
called by the platform device probe path that will automaticaly try to
attach a device with a power-domains property to the correct PM domain.

Note that this assumes that the genpds are created before the devices
are probed.

Kevin