On Fri, Oct 14, 2016 at 7:47 PM, Lina Iyer <lina.iyer@xxxxxxxxxx> wrote: > Update documentation to reflect the changes made to support IRQ safe PM > domains. > > Signed-off-by: Lina Iyer <lina.iyer@xxxxxxxxxx> > Acked-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx> > --- > Documentation/power/devices.txt | 9 ++++++++- > 1 file changed, 8 insertions(+), 1 deletion(-) > > diff --git a/Documentation/power/devices.txt b/Documentation/power/devices.txt > index 8ba6625..0401b53 100644 > --- a/Documentation/power/devices.txt > +++ b/Documentation/power/devices.txt > @@ -607,7 +607,14 @@ individually. Instead, a set of devices sharing a power resource can be put > into a low-power state together at the same time by turning off the shared > power resource. Of course, they also need to be put into the full-power state > together, by turning the shared power resource on. A set of devices with this > -property is often referred to as a power domain. > +property is often referred to as a power domain. A power domain may also be > +nested inside another power domain. > + > +Devices and PM domains may be defined as IRQ-safe, if they can be powered > +on/off even when the IRQs are disabled. An IRQ-safe device in a domain will > +disallow power management on the domain, unless the domain is also defined as > +IRQ-safe. The restriction this framework imposes on the parent domain of an > +IRQ-safe domain is that it must also be defined as IRQ-safe. I would put this paragraph below, before the last paragraph in the section. Also I suppose that a domain should only be defined as "IRQ-safe" if all of the devices in it are "IRQ-safe" (or there will be problems at least in principle). If that is the case, it should be stated clearly in the paragraph you are adding as well. Thanks, Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
