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-rw-r--r--Documentation/devicetree/bindings/arm/exynos/power_domain.txt13
1 files changed, 12 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/arm/exynos/power_domain.txt b/Documentation/devicetree/bindings/arm/exynos/power_domain.txt
index 843b5462231..5216b419016 100644
--- a/Documentation/devicetree/bindings/arm/exynos/power_domain.txt
+++ b/Documentation/devicetree/bindings/arm/exynos/power_domain.txt
@@ -4,14 +4,25 @@ Exynos processors include support for multiple power domains which are used
to gate power to one or more peripherals on the processor.
Required Properties:
-- compatiable: should be one of the following.
+- compatible: should be one of the following.
* samsung,exynos4210-pd - for exynos4210 type power domain.
- reg: physical base address of the controller and length of memory mapped
region.
+Node of a device using power domains must have a samsung,power-domain property
+defined with a phandle to respective power domain.
+
Example:
lcd0: power-domain-lcd0 {
compatible = "samsung,exynos4210-pd";
reg = <0x10023C00 0x10>;
};
+
+Example of the node using power domain:
+
+ node {
+ /* ... */
+ samsung,power-domain = <&lcd0>;
+ /* ... */
+ };