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This adds device tree bindings for the Gateworks PLD GPIO chip, a simple I2C GPIO controller. Cc: devicetree@vger.kernel.org Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Tim Harvey <tharvey@gateworks.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
20 lines
521 B
Text
20 lines
521 B
Text
Gateworks PLD GPIO controller bindings
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The GPIO controller should be a child node on an I2C bus,
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see: i2c/i2c.txt for details.
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Required properties:
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- compatible: Should be "gateworks,pld-gpio"
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- reg: I2C slave address
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- gpio-controller: Marks the device node as a GPIO controller.
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- #gpio-cells: Should be <2>. The first cell is the gpio number and
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the second cell is used to specify optional parameters.
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Example:
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pld@56 {
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compatible = "gateworks,pld-gpio";
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reg = <0x56>;
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gpio-controller;
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#gpio-cells = <2>;
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};
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