From: Stephen Warren Date: Wed, 4 Jan 2012 08:39:34 +0000 (+0000) Subject: dt: tegra gpio: Flesh out binding documentation X-Git-Tag: MMI-PSA29.97-13-9~17153^2~1^2~15 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a38b84fce9d1f3b1f054409b6363d98bf019e263;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git dt: tegra gpio: Flesh out binding documentation Document the required reg and interrupts properties. Add a complete example. Signed-off-by: Stephen Warren Acked-by: Grant Likely Signed-off-by: Olof Johansson --- diff --git a/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt b/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt index eb4b530d64e1..50b363c5b884 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; +};