diff options
| author | Olof Johansson <olof@lixom.net> | 2011-07-14 22:17:13 -0700 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2011-07-15 11:51:27 -0600 |
| commit | eb5064db408eaffa332f93ddcc19c0b653849093 (patch) | |
| tree | 08543e8055ba5e9a13c9c961f0c157df2f380584 /Documentation/devicetree | |
| parent | 8ff37c38a26dbdba16f07d48c13bf5f212a98c89 (diff) | |
gpio/tegra: dt: add binding for gpio polarity
Allocate one bit in the available extra cell to indicate if the gpio
should be considered logically inverted.
Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/gpio/gpio_nvidia.txt | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt b/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt index 64aac39e6ed..eb4b530d64e 100644 --- a/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt +++ b/Documentation/devicetree/bindings/gpio/gpio_nvidia.txt @@ -3,5 +3,6 @@ NVIDIA Tegra 2 GPIO controller Required properties: - compatible : "nvidia,tegra20-gpio" - #gpio-cells : Should be two. The first cell is the pin number and the - second cell is used to specify optional parameters (currently unused). + 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. |