From 8937cb602bea120248cef64961fc46836a394c8a Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Thu, 7 Jul 2011 00:37:43 +0800 Subject: gpio/mxc: add device tree probe support The patch adds device tree probe support for gpio-mxc driver. Signed-off-by: Shawn Guo Signed-off-by: Grant Likely --- .../devicetree/bindings/gpio/fsl-imx-gpio.txt | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt (limited to 'Documentation/devicetree') diff --git a/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt b/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt new file mode 100644 index 000000000000..4363ae4b3c14 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt @@ -0,0 +1,22 @@ +* Freescale i.MX/MXC GPIO controller + +Required properties: +- compatible : Should be "fsl,-gpio" +- reg : Address and length of the register set for the device +- interrupts : Should be the port interrupt shared by all 32 pins, if + one number. If two numbers, the first one is the interrupt shared + by low 16 pins and the second one is for high 16 pins. +- gpio-controller : Marks the device node as a gpio controller. +- #gpio-cells : Should be two. The first cell is the pin number and + the second cell is used to specify optional parameters (currently + unused). + +Example: + +gpio0: gpio@73f84000 { + compatible = "fsl,imx51-gpio", "fsl,imx31-gpio"; + reg = <0x73f84000 0x4000>; + interrupts = <50 51>; + gpio-controller; + #gpio-cells = <2>; +}; -- cgit v1.2.1