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[2/6] dt: tegra gpio: Flesh out binding documentation

Message ID 1325702378-20863-2-git-send-email-swarren@nvidia.com
State New, archived
Headers show

Commit Message

Stephen Warren Jan. 4, 2012, 6:39 p.m. UTC 
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(-)
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Patch

diff --git a/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt b/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt
index eb4b530..50b363c 100644
--- a/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt
@@ -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;
+};