From: Soren Brinkmann Date: Fri, 23 Oct 2015 16:25:30 +0000 (-0700) Subject: gpio: zynq: Document interrupt-controller DT binding X-Git-Tag: v4.9.8~3332^2~8 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=787dfbb294b25b37211d0749e7cdbb20d443c680;p=platform%2Fkernel%2Flinux-rpi3.git gpio: zynq: Document interrupt-controller DT binding HW and driver support the GPIO as interrupt-controller. Document that in the DT binding. Signed-off-by: Soren Brinkmann Signed-off-by: Linus Walleij --- diff --git a/Documentation/devicetree/bindings/gpio/gpio-zynq.txt b/Documentation/devicetree/bindings/gpio/gpio-zynq.txt index db4c6a6..7b54265 100644 --- a/Documentation/devicetree/bindings/gpio/gpio-zynq.txt +++ b/Documentation/devicetree/bindings/gpio/gpio-zynq.txt @@ -12,6 +12,13 @@ Required properties: - interrupts : Interrupt specifier (see interrupt bindings for details) - interrupt-parent : Must be core interrupt controller +- 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. - reg : Address and length of the register set for the device Example: @@ -22,5 +29,7 @@ Example: gpio-controller; interrupt-parent = <&intc>; interrupts = <0 20 4>; + interrupt-controller; + #interrupt-cells = <2>; reg = <0xe000a000 0x1000>; };