From 6ee6fbde42f41fda10b610f81bbba7b3afea513f Mon Sep 17 00:00:00 2001 From: Sean Wang Date: Mon, 21 May 2018 01:01:47 +0800 Subject: [PATCH] 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 Reviewed-by: Rob Herring Signed-off-by: Linus Walleij --- .../devicetree/bindings/pinctrl/pinctrl-mt7622.txt | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt7622.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt7622.txt index f18ed99f6e14..def8fcad8941 100644 --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mt7622.txt +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-mt7622.txt @@ -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". -- 2.45.2