Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / gpio / gpio-lp3943.txt

diff --git a/kernel/Documentation/devicetree/bindings/gpio/gpio-lp3943.txt b/kernel/Documentation/devicetree/bindings/gpio/gpio-lp3943.txt
new file mode 100644 (file)
index 0000000..80fcb7d
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/gpio/gpio-lp3943.txt
@@ -0,0 +1,37 @@
+TI/National Semiconductor LP3943 GPIO controller
+
+Required properties:
+  - compatible: "ti,lp3943-gpio"
+  - gpio-controller: Marks the device node as a GPIO controller.
+  - #gpio-cells: Should be 2. See gpio.txt in this directory for a
+                 description of the cells format.
+
+Example:
+Simple LED controls with LP3943 GPIO controller
+
+&i2c4 {
+       lp3943@60 {
+               compatible = "ti,lp3943";
+               reg = <0x60>;
+
+               gpioex: gpio {
+                       compatible = "ti,lp3943-gpio";
+                       gpio-controller;
+                       #gpio-cells = <2>;
+               };
+       };
+};
+
+leds {
+       compatible = "gpio-leds";
+       indicator1 {
+               label = "indi1";
+               gpios = <&gpioex 9 GPIO_ACTIVE_LOW>;
+       };
+
+       indicator2 {
+               label = "indi2";
+               gpios = <&gpioex 10 GPIO_ACTIVE_LOW>;
+               default-state = "off";
+       };
+};