mfd: ti-keystone-devctrl: Add bindings for device state control

The Keystone II devices have a set of registers that are used to control
the status of its peripherals. This node is intended to allow access to
this functionality.

Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

diff --git a/Documentation/devicetree/bindings/mfd/ti-keystone-devctrl.txt b/Documentation/devicetree/bindings/mfd/ti-keystone-devctrl.txt
new file mode 100644 (file)
index 0000000..20963c7
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/ti-keystone-devctrl.txt
@@ -0,0 +1,19 @@
+* Device tree bindings for Texas Instruments keystone device state control
+
+The Keystone II devices have a set of registers that are used to control
+the status of its peripherals. This node is intended to allow access to
+this functionality.
+
+Required properties:
+
+- compatible:          "ti,keystone-devctrl", "syscon"
+
+- reg:                 contains offset/length value for device state control
+                       registers space.
+
+Example:
+
+devctrl: device-state-control@0x02620000 {
+       compatible = "ti,keystone-devctrl", "syscon";
+       reg = <0x02620000 0x1000>;
+};