From a180132f270a96d3b0e1e290b2911647abe9ed8e Mon Sep 17 00:00:00 2001 From: Alexander Shiyan Date: Fri, 26 Apr 2013 19:47:30 +0400 Subject: GPIO: clps711x: Add DT support Add DT support to the CLPS711X GPIO driver. Signed-off-by: Alexander Shiyan Acked-by: Arnd Bergmann Acked-by: Linus Walleij Signed-off-by: Olof Johansson --- .../devicetree/bindings/gpio/gpio-clps711x.txt | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/gpio/gpio-clps711x.txt (limited to 'Documentation/devicetree/bindings/gpio') diff --git a/Documentation/devicetree/bindings/gpio/gpio-clps711x.txt b/Documentation/devicetree/bindings/gpio/gpio-clps711x.txt new file mode 100644 index 000000000000..e0d0446a6b78 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio-clps711x.txt @@ -0,0 +1,28 @@ +Cirrus Logic CLPS711X GPIO controller + +Required properties: +- compatible: Should be "cirrus,clps711x-gpio" +- reg: Physical base GPIO controller registers location and length. + There should be two registers, first is DATA register, the second + is DIRECTION. +- 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 the gpio polarity: + 0 = active high + 1 = active low + +Note: Each GPIO port should have an alias correctly numbered in "aliases" +node. + +Example: + +aliases { + gpio0 = &porta; +}; + +porta: gpio@80000000 { + compatible = "cirrus,clps711x-gpio"; + reg = <0x80000000 0x1>, <0x80000040 0x1>; + gpio-controller; + #gpio-cells = <2>; +}; -- cgit