mfd: AS3722: Add dt node properties for system power controller

ams AS3722 device supports the power off by turning off its all rails.

Add dt node properties to enable this functionality on this device.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>

diff --git a/Documentation/devicetree/bindings/mfd/as3722.txt b/Documentation/devicetree/bindings/mfd/as3722.txt
index fc2191ecfd6baaf0eba79db482a1da5ed0e19341..8edcb9bd873b016315fa1f7b2471e060ccfe82f7 100644 (file)
--- a/Documentation/devicetree/bindings/mfd/as3722.txt
+++ b/Documentation/devicetree/bindings/mfd/as3722.txt
@@ -112,6 +112,15 @@ Following are properties of regulator subnode.
                ams,enable-tracking: Enable tracking with SD1, only supported
                        by LDO3.
 
+Power-off:
+=========
+AS3722 supports the system power off by turning off all its rail. This
+is provided through pm_power_off.
+The device node should have the following properties to enable this
+functionality
+ams,system-power-controller: Boolean, to enable the power off functionality
+        through this device.
+
 Example:
 --------
 #include <dt-bindings/mfd/as3722.h>
@@ -120,6 +129,8 @@ ams3722 {
        compatible = "ams,as3722";
        reg = <0x48>;
 
+       ams,system-power-controller;
+
        interrupt-parent = <&intc>;
        interrupt-controller;
        #interrupt-cells = <2>;