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dt-bindings: pinctrl: add external interrupt support to MT7622 pinctrl
Extend the capability of MT7622 pinctrl with adding EINT so that each GPIO can be used to notify CPU when a signal state is changing on the line as an external interrupt. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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@ -9,6 +9,16 @@ Required properties for the root node:
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- #gpio-cells: Should be two. The first cell is the pin number and the
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second is the GPIO flags.
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Optional properties:
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- interrupt-controller : Marks the device node as an interrupt controller
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If the property interrupt-controller is defined, following property is required
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- reg-names: A string describing the "reg" entries. Must contain "eint".
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- interrupts : The interrupt output from the controller.
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- #interrupt-cells: Should be two.
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- interrupt-parent: Phandle of the interrupt parent to which the external
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GPIO interrupts are forwarded to.
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Please refer to pinctrl-bindings.txt in this directory for details of the
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common pinctrl bindings used by client devices, including the meaning of the
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phrase "pin configuration node".
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