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-rw-r--r--Documentation/devicetree/bindings/opp/opp.txt5
-rw-r--r--Documentation/devicetree/bindings/power/power_domain.txt6
2 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/opp/opp.txt b/Documentation/devicetree/bindings/opp/opp.txt
index 9d733af26be7..a3953a1bb1a1 100644
--- a/Documentation/devicetree/bindings/opp/opp.txt
+++ b/Documentation/devicetree/bindings/opp/opp.txt
@@ -45,6 +45,11 @@ Devices supporting OPPs must set their "operating-points-v2" property with
phandle to a OPP table in their DT node. The OPP core will use this phandle to
find the operating points for the device.
+This can contain more than one phandle for power domain providers that provide
+multiple power domains. That is, one phandle for each power domain. If only one
+phandle is available, then the same OPP table will be used for all power domains
+provided by the power domain provider.
+
If required, this can be extended for SoC vendor specific bindings. Such bindings
should be documented as Documentation/devicetree/bindings/power/<vendor>-opp.txt
and should have a compatible description like: "operating-points-v2-<vendor>".
diff --git a/Documentation/devicetree/bindings/power/power_domain.txt b/Documentation/devicetree/bindings/power/power_domain.txt
index 14bd9e945ff6..61549840ab3b 100644
--- a/Documentation/devicetree/bindings/power/power_domain.txt
+++ b/Documentation/devicetree/bindings/power/power_domain.txt
@@ -40,6 +40,12 @@ Optional properties:
domain's idle states. In the absence of this property, the domain would be
considered as capable of being powered-on or powered-off.
+- operating-points-v2 : Phandles to the OPP tables of power domains provided by
+ a power domain provider. If the provider provides a single power domain only
+ or all the power domains provided by the provider have identical OPP tables,
+ then this shall contain a single phandle. Refer to ../opp/opp.txt for more
+ information.
+
Example:
power: power-controller@12340000 {