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PM / Domains: dt: Allow power-domain property to be a list of specifiers 

To be able to describe topologies where devices are partitioned across
multiple power domains, let's extend the power-domain property to allow
being a list of PM domain specifiers.

Suggested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Ulf Hansson 2018-05-31 12:59:55 +02:00 committed by Rafael J. Wysocki
parent 3c89adb0d1
commit 657c292ce1
1 changed files with 14 additions and 5 deletions
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19
Documentation/devicetree/bindings/power/power_domain.txt
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@ -111,8 +111,8 @@ Example 3:
==PM domain consumers==
Required properties:
- power-domains : A phandle and PM domain specifier as defined by bindings of
the power controller specified by phandle.
- power-domains : A list of PM domain specifiers, as defined by bindings of
the power controller that is the PM domain provider.
Example:
@ -122,9 +122,18 @@ Example:
power-domains = <&power 0>;
};
The node above defines a typical PM domain consumer device, which is located
inside a PM domain with index 0 of a power controller represented by a node
with the label "power".
leaky-device@12351000 {
compatible = "foo,i-leak-current";
reg = <0x12351000 0x1000>;
power-domains = <&power 0>, <&power 1> ;
};
The first example above defines a typical PM domain consumer device, which is
located inside a PM domain with index 0 of a power controller represented by a
node with the label "power".
In the second example the consumer device are partitioned across two PM domains,
the first with index 0 and the second with index 1, of a power controller that
is represented by a node with the label "power.
Optional properties:
- required-opps: This contains phandle to an OPP node in another device's OPP