RE: [PATCH] gpio/tegra: dt: add binding for gpio polarity
From: Stephen Warren <hidden>
Date: 2011-07-15 16:29:08
Also in:
linux-tegra
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 <redacted>
Acked-by: Stephen Warren <redacted>
quoted hunk
--- .../devicetree/bindings/gpio/gpio_nvidia.txt | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)diff --git a/Documentation/devicetree/bindings/gpio/gpio_nvidia.txtb/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