@@ -2,7 +2,25 @@ NVIDIA Tegra 2 GPIO controller
Required properties:
- compatible : "nvidia,tegra20-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 and the
second cell is used to specify optional parameters:
- bit 0 specifies polarity (0 for normal, 1 for inverted)
- gpio-controller : Marks the device node as a GPIO controller.
+
+Example:
+
+gpio: gpio@6000d000 {
+ compatible = "nvidia,tegra20-gpio";
+ reg = < 0x6000d000 0x1000 >;
+ interrupts = < 0 32 0x04
+ 0 33 0x04
+ 0 34 0x04
+ 0 35 0x04
+ 0 55 0x04
+ 0 87 0x04
+ 0 89 0x04 >;
+ #gpio-cells = <2>;
+ gpio-controller;
+};
Document the required reg and interrupts properties. Add a complete example. Signed-off-by: Stephen Warren <swarren@nvidia.com> --- .../devicetree/bindings/gpio/gpio_nvidia.txt | 18 ++++++++++++++++++ 1 files changed, 18 insertions(+), 0 deletions(-)