diff options
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/gpio/gpio_nvidia.txt | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt b/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt index d114e1997d39..023c9526e5f8 100644 --- a/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt +++ b/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt | |||
| @@ -1,9 +1,11 @@ | |||
| 1 | NVIDIA Tegra 2 GPIO controller | 1 | NVIDIA Tegra GPIO controller |
| 2 | 2 | ||
| 3 | Required properties: | 3 | Required properties: |
| 4 | - compatible : "nvidia,tegra20-gpio" | 4 | - compatible : "nvidia,tegra<chip>-gpio" |
| 5 | - reg : Physical base address and length of the controller's registers. | 5 | - reg : Physical base address and length of the controller's registers. |
| 6 | - interrupts : The interrupt outputs from the controller. | 6 | - interrupts : The interrupt outputs from the controller. For Tegra20, |
| 7 | there should be 7 interrupts specified, and for Tegra30, there should | ||
| 8 | be 8 interrupts specified. | ||
| 7 | - #gpio-cells : Should be two. The first cell is the pin number and the | 9 | - #gpio-cells : Should be two. The first cell is the pin number and the |
| 8 | second cell is used to specify optional parameters: | 10 | second cell is used to specify optional parameters: |
| 9 | - bit 0 specifies polarity (0 for normal, 1 for inverted) | 11 | - bit 0 specifies polarity (0 for normal, 1 for inverted) |