From: Frank Li <Frank.Li@freescale.com>
Date: Tue, 26 May 2015 16:26:01 +0000 (+0800)
Subject: Document: devicetree: input: imx: i.mx snvs power device tree bindings
X-Git-Tag: firefly_0821_release~176^2~1185^2~3^2~7
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=cc28791d5ece61eaa78e7b9bbc3ac1d14f664683;p=firefly-linux-kernel-4.4.55.git

Document: devicetree: input: imx: i.mx snvs power device tree bindings

The snvs-pwrkey is designed to enable POWER key function which controlled
by SNVS ONOFF. the driver can report the status of POWER key and wakeup
system if pressed after system suspend.

Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: Robin Gong <b38343@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---

diff --git a/Documentation/devicetree/bindings/crypto/fsl-sec4.txt b/Documentation/devicetree/bindings/crypto/fsl-sec4.txt
index b21e7c2eef21..71a39c5bd486 100644
--- a/Documentation/devicetree/bindings/crypto/fsl-sec4.txt
+++ b/Documentation/devicetree/bindings/crypto/fsl-sec4.txt
@@ -386,6 +386,47 @@ EXAMPLE
 		offset = <0x34>;
 	};
 
+=====================================================================
+System ON/OFF key driver
+
+  The snvs-pwrkey is designed to enable POWER key function which controlled
+  by SNVS ONOFF, the driver can report the status of POWER key and wakeup
+  system if pressed after system suspend.
+
+  - compatible:
+      Usage: required
+      Value type: <string>
+      Definition: Mush include "fsl,sec-v4.0-pwrkey".
+
+  - interrupts:
+      Usage: required
+      Value type: <prop_encoded-array>
+      Definition: The SNVS ON/OFF interrupt number to the CPU(s).
+
+  - linux,keycode:
+      Usage: option
+      Value type: <int>
+      Definition: Keycode to emit, KEY_POWER by default.
+
+  - wakeup:
+      Usage: option
+      Value type: <boo>
+      Definition: Button can wake-up the system.
+
+ - regmap:
+      Usage: required:
+      Value type: <phandle>
+      Definition: this is phandle to the register map node.
+
+EXAMPLE:
+	snvs-pwrkey@0x020cc000 {
+		compatible = "fsl,sec-v4.0-pwrkey";
+		regmap = <&snvs>;
+		interrupts = <0 4 0x4>
+	        linux,keycode = <116>; /* KEY_POWER */
+		wakeup;
+	};
+
 =====================================================================
 FULL EXAMPLE
 
@@ -466,6 +507,14 @@ FULL EXAMPLE
 			offset = <0x34>;
 			interrupts = <93 2>;
 		};
+
+		snvs-pwrkey@0x020cc000 {
+			compatible = "fsl,sec-v4.0-pwrkey";
+			regmap = <&sec_mon>;
+			interrupts = <0 4 0x4>;
+			linux,keycode = <116>; /* KEY_POWER */
+			wakeup;
+		};
 	};
 
 =====================================================================
diff --git a/Documentation/devicetree/bindings/input/snvs-pwrkey.txt b/Documentation/devicetree/bindings/input/snvs-pwrkey.txt
new file mode 100644
index 000000000000..70c14250323b
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/snvs-pwrkey.txt
@@ -0,0 +1 @@
+See Documentation/devicetree/bindings/crypto/fsl-sec4.txt