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Diffstat (limited to 'Documentation/devicetree/bindings/gpio/gpio_nvidia.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/gpio/gpio_nvidia.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt b/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt new file mode 100644 index 00000000000..eb4b530d64e --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt | |||
| @@ -0,0 +1,8 @@ | |||
| 1 | NVIDIA Tegra 2 GPIO controller | ||
| 2 | |||
| 3 | Required properties: | ||
| 4 | - compatible : "nvidia,tegra20-gpio" | ||
| 5 | - #gpio-cells : Should be two. The first cell is the pin number and the | ||
| 6 | second cell is used to specify optional parameters: | ||
| 7 | - bit 0 specifies polarity (0 for normal, 1 for inverted) | ||
| 8 | - gpio-controller : Marks the device node as a GPIO controller. | ||