diff options
| author | Shawn Guo <shawn.guo@linaro.org> | 2011-07-06 18:37:43 +0200 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2011-07-08 20:38:18 +0200 |
| commit | 8937cb602bea120248cef64961fc46836a394c8a (patch) | |
| tree | dff8c06485812bf1316a7da37c3f690f313b4508 /Documentation/devicetree | |
| parent | ARM: mxc: use ARCH_NR_GPIOS to define gpio number (diff) | |
| download | linux-8937cb602bea120248cef64961fc46836a394c8a.tar.xz linux-8937cb602bea120248cef64961fc46836a394c8a.zip | |
gpio/mxc: add device tree probe support
The patch adds device tree probe support for gpio-mxc driver.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt | 22 |
1 files changed, 22 insertions, 0 deletions
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,<soc>-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>; +}; |