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authorAnton Arapov <anton@redhat.com>2012-08-07 11:21:50 +0200
committerAnton Arapov <anton@redhat.com>2012-08-07 12:52:25 +0200
commit1d44b6f3fcf6058fb7c960b7558766967e8028f7 (patch)
tree53d88547c973ba048d233091a3f91f3173ad01df /Documentation/devicetree/bindings/gpio/gpio-nmk.txt
parentd91eda5d7b0383e6a0c83e0146ff141ff3b1355b (diff)
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Signed-off-by: Anton Arapov <anton@redhat.com>
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+Nomadik GPIO controller
+
+Required properties:
+- compatible : Should be "st,nomadik-gpio".
+- reg : Physical base address and length of the controller's registers.
+- interrupts : The interrupt outputs from the controller.
+- #gpio-cells : Should be two:
+ The first cell is the pin number.
+ The second cell is used to specify optional parameters:
+ - bits[3:0] trigger type and level flags:
+ 1 = low-to-high edge triggered.
+ 2 = high-to-low edge triggered.
+ 4 = active high level-sensitive.
+ 8 = active low level-sensitive.
+- gpio-controller : Marks the device node as a GPIO controller.
+- interrupt-controller : Marks the device node as an interrupt controller.
+- gpio-bank : Specifies which bank a controller owns.
+- st,supports-sleepmode : Specifies whether controller can sleep or not
+
+Example:
+
+ gpio1: gpio@8012e080 {
+ compatible = "st,nomadik-gpio";
+ reg = <0x8012e080 0x80>;
+ interrupts = <0 120 0x4>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ supports-sleepmode;
+ gpio-bank = <1>;
+ };