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dt-bindings: marvell: Add documentation for the North Bridge PM on Armada 37xx

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Extend the documentation of the Armada 37xx SoC with the the North
Bridge Power Management component.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Gregory CLEMENT 2017-12-14 16:00:03 +01:00 committed by Rafael J. Wysocki
parent 3f4590a4a3
commit 7a62f48b27
1 changed files with 19 additions and 0 deletions
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19
Documentation/devicetree/bindings/arm/marvell/armada-37xx.txt
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@ -14,3 +14,22 @@ following property before the previous one:
Example:
compatible = "marvell,armada-3720-db", "marvell,armada3720", "marvell,armada3710";
Power management
----------------
For power management (particularly DVFS and AVS), the North Bridge
Power Management component is needed:
Required properties:
- compatible : should contain "marvell,armada-3700-nb-pm", "syscon";
- reg : the register start and length for the North Bridge
Power Management
Example:
nb_pm: syscon@14000 {
compatible = "marvell,armada-3700-nb-pm", "syscon";
reg = <0x14000 0x60>;
}