From: Harini Katakam Date: Tue, 8 Jul 2014 11:02:36 +0000 (+0530) Subject: devicetree: Add Zynq GPIO devicetree bindings documentation X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=38ed0187d2da7f219f9f84d8921b5c95b266b34b;p=linux-beck.git devicetree: Add Zynq GPIO devicetree bindings documentation Add gpio-zynq bindings documentation. Signed-off-by: Harini Katakam 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 new file mode 100644 index 000000000000..986371a4be2c --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-zynq.txt @@ -0,0 +1,26 @@ +Xilinx Zynq GPIO controller Device Tree Bindings +------------------------------------------- + +Required properties: +- #gpio-cells : Should be two + - First cell is the GPIO line number + - Second cell is used to specify optional + parameters (unused) +- compatible : Should be "xlnx,zynq-gpio-1.0" +- clocks : Clock specifier (see clock bindings for details) +- gpio-controller : Marks the device node as a GPIO controller. +- interrupts : Interrupt specifier (see interrupt bindings for + details) +- interrupt-parent : Must be core interrupt controller +- reg : Address and length of the register set for the device + +Example: + gpio@e000a000 { + #gpio-cells = <2>; + compatible = "xlnx,zynq-gpio-1.0"; + clocks = <&clkc 42>; + gpio-controller; + interrupt-parent = <&intc>; + interrupts = <0 20 4>; + reg = <0xe000a000 0x1000>; + };