[PATCH] gpio/tegra: dt: add binding for gpio polarity

[Stephen Warren]

Olof Johansson wrote at Thursday, July 14, 2011 11:17 PM:
> Allocate one bit in the available extra cell to indicate if the gpio
> should be considered logically inverted.
> 
> Signed-off-by: Olof Johansson <olof at lixom.net>

Acked-by: Stephen Warren <swarren at nvidia.com>

> ---
>  .../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 64aac39..adcf55c 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.
> --
> 1.7.4.1

-- 
nvpublic