linux/Documentation/devicetree/bindings/gpio/gpio-nmk.txt
Lee Jones 612e1d5f1c pinctrl: pinctrl-nomadik: Append sleepmode property with vendor specific prefixes
Any non-standard property should contain the vendor's identifier which
should be perpended onto the property name followed by a comma. This
aids in name-space collision prevention. This patch ensures the
sleepmode property adheres to the rules.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2012-07-13 10:14:39 +02:00

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Nomadik GPIO controller
Required properties:
- compatible : Should be "st,nomadik-gpio".
- reg : Physical base address and length of the controller's registers.
- interrupts : The interrupt outputs from the controller.
- #gpio-cells : Should be two:
The first cell is the pin number.
The second cell is used to specify optional parameters:
- bits[3:0] 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.
- gpio-controller : Marks the device node as a GPIO controller.
- interrupt-controller : Marks the device node as an interrupt controller.
- gpio-bank : Specifies which bank a controller owns.
- st,supports-sleepmode : Specifies whether controller can sleep or not
Example:
gpio1: gpio@8012e080 {
compatible = "st,nomadik-gpio";
reg = <0x8012e080 0x80>;
interrupts = <0 120 0x4>;
#gpio-cells = <2>;
gpio-controller;
interrupt-controller;
st,supports-sleepmode;
gpio-bank = <1>;
};