[PATCH v3 0/9] PM / Domains: Fix race conditions during boot
Rafael J. Wysocki
rjw at rjwysocki.net
Tue Nov 4 05:32:46 PST 2014
On Tuesday, November 04, 2014 09:20:44 AM Geert Uytterhoeven wrote:
> On Tue, Nov 4, 2014 at 2:43 AM, Rafael J. Wysocki <rjw at rjwysocki.net> wrote:
> > That is quite simple to address, though. You can register a bus type
> > notifier that will power up the domain on BUS_NOTIFY_ADD_DEVICE events
> > (where the target device belongs to the domain), and do that only for
> > CONFIG_PM_RUNTIME unset (otherwise runtime PM should take care of this).
> Registering a bus type notifier (that will be a platform bus notifier,
> right?) will affect
> all platform devices, not only the on-SoC devices.
Yes it will, but the "is the device in this domain?" check is trivial to do.
More information about the linux-arm-kernel