The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/gpio/gateworks,pld-gpio.txt

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    1 Gateworks PLD GPIO controller bindings
    2 
    3 The GPIO controller should be a child node on an I2C bus,
    4 see: i2c/i2c.txt for details.
    5 
    6 Required properties:
    7 - compatible: Should be "gateworks,pld-gpio"
    8 - reg: I2C slave address
    9 - gpio-controller: Marks the device node as a GPIO controller.
   10 - #gpio-cells: Should be <2>. The first cell is the gpio number and
   11   the second cell is used to specify optional parameters.
   12 
   13 Example:
   14 
   15 pld@56 {
   16         compatible = "gateworks,pld-gpio";
   17         reg = <0x56>;
   18         gpio-controller;
   19         #gpio-cells = <2>;
   20 };

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