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Commit 6ee6fbde authored by Sean Wang's avatar Sean Wang Committed by Linus Walleij
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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: default avatarSean Wang <sean.wang@mediatek.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent c2b39dec

Documentation/devicetree/bindings/pinctrl/pinctrl-mt7622.txt

+10 −0
Original line number Diff line number Diff line
@@ -9,6 +9,16 @@ Required properties for the root node: 
 - #gpio-cells: Should be two. The first cell is the pin number and the

   second is the GPIO flags.



Optional properties:

- interrupt-controller  : Marks the device node as an interrupt controller



If the property interrupt-controller is defined, following property is required

- reg-names: A string describing the "reg" entries. Must contain "eint".

- interrupts : The interrupt output from the controller.

- #interrupt-cells: Should be two.

- interrupt-parent: Phandle of the interrupt parent to which the external

  GPIO interrupts are forwarded to.



Please refer to pinctrl-bindings.txt in this directory for details of the

common pinctrl bindings used by client devices, including the meaning of the

phrase "pin configuration node".