[RFC][PATCH 1/5] dts: bindings: Add binding documentation for hisilicon,hi6552-powerkey

[John Stultz <john.stultz@linaro.org>]

Adds binding documentation for hi6552 pmic powerkey button.

Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
Cc: Wei Xu <xuwei5@hisilicon.com>
Cc: Guodong Xu <guodong.xu@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 .../bindings/input/hisilicon,hi6552-powerkey.txt   | 40 ++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/hisilicon,hi6552-powerkey.txt

diff --git a/Documentation/devicetree/bindings/input/hisilicon,hi6552-powerkey.txt b/Documentation/devicetree/bindings/input/hisilicon,hi6552-powerkey.txt
new file mode 100644
index 0000000..7f09124
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/hisilicon,hi6552-powerkey.txt
@@ -0,0 +1,40 @@
+HiSilicon hi6552 PMIC Power Key
+
+PROPERTIES
+
+- compatible:
+	Usage: required
+	Value type: <string>
+	Definition: must be one of:
+		    "hisilicon,hi6552-powerkey"
+
+- interrupt-parent
+	Usage: (required if interrupt property is defined)
+	Value type: <phandle>
+	Definition: A single <phandle> value that points to the interrupt
+		    parent to which the child domain is being mapped.
+
+- interrupts:
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: The first interrupt specifies the key release interrupt
+		    and the second interrupt specifies the key press interrupt,
+		    the third defines the timed key-hold interrupt.
+		    The format of the specifier is defined by the binding
+		    document describing the node's interrupt parent.
+
+- interrupt-names:
+	Usage: required
+	Value type: "down", "up", "hold 4s"
+	Definition: String names for the press, release and timed hold
+		    interrupts.
+
+
+EXAMPLE
+
+	powerkey:powerkey@b1{
+		compatible = "hisilicon,hi6552-powerkey";
+		interrupt-parent = <&pmic>;
+		interrupts = <6 0>, <5 0>, <4 0>;
+		interrupt-names = "down", "up", "hold 4s";
+	};
-- 
1.9.1