From mboxrd@z Thu Jan 1 00:00:00 1970 From: harinik@xilinx.com (Harini Katakam) Date: Wed, 18 Jun 2014 17:09:37 +0530 Subject: [PATCH v2 2/2] devicetree: Add Zynq GPIO devicetree bindings documentation In-Reply-To: <1403091577-10232-1-git-send-email-harinik@xilinx.com> References: <1403091577-10232-1-git-send-email-harinik@xilinx.com> Message-ID: <1403091577-10232-2-git-send-email-harinik@xilinx.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Harini Katakam Add gpio-zynq bindings documentation. Signed-off-by: Harini Katakam Signed-off-by: Soren Brinkmann --- v2 changes: Improve description. --- .../devicetree/bindings/gpio/gpio-zynq.txt | 24 ++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-zynq.txt diff --git a/Documentation/devicetree/bindings/gpio/gpio-zynq.txt b/Documentation/devicetree/bindings/gpio/gpio-zynq.txt new file mode 100644 index 0000000..b2c023a --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-zynq.txt @@ -0,0 +1,24 @@ +Xilinx Zynq GPIO controller Device Tree Bindings +------------------------------------------- + +Required properties: +- #gpio-cells : Should be two. First cell is used to mention + pin number. +- 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 at 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>; + }; -- 1.7.9.5