diff options
| author | Shawn Guo <shawn.guo@linaro.org> | 2012-07-06 12:03:37 (GMT) |
|---|---|---|
| committer | Shawn Guo <shawn.guo@linaro.org> | 2012-07-07 12:13:24 (GMT) |
| commit | 88cde8b78f6914ce542949e5a8dd9031e3035996 (patch) | |
| tree | 05ce753b31d68d2f2c8cc61006ff68a5365eb53e /Documentation | |
| parent | c1cb438522f2cd62fb3a261d66a549606c131c93 (diff) | |
| download | linux-88cde8b78f6914ce542949e5a8dd9031e3035996.tar.xz | |
ARM: dts: imx: update #interrupt-cells for gpio nodes
Change the value of #interrupt-cells of gpio nodes from 1 to 2, so that
the gpio irq type can be specified in device tree. Also update binding
document to make it clear.
Reported-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt b/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt index 5f360e7..4f39297 100644 --- a/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt +++ b/Documentation/devicetree/bindings/gpio/fsl-imx-gpio.txt @@ -11,6 +11,13 @@ Required properties: the second cell is used to specify the gpio polarity: 0 = active high 1 = active low +- interrupt-controller: Marks the device node as an interrupt controller. +- #interrupt-cells : Should be 2. The first cell is the GPIO number. + The second cell bits[3:0] is used to specify trigger type and level flags: + 1 = low-to-high edge triggered. + 2 = high-to-low edge triggered. + 4 = active high level-sensitive. + 8 = active low level-sensitive. Example: @@ -20,4 +27,6 @@ gpio0: gpio@73f84000 { interrupts = <50 51>; gpio-controller; #gpio-cells = <2>; + interrupt-controller; + #interrupt-cells = <2>; }; |