[PATCH v1 1/7] dt-bindings: pinctrl: add external interrupt support to MT7622 pinctrl
From: sean.wang@mediatek.com (sean.wang at mediatek.com)
Date: 2018-05-20 17:02:29
Also in:
linux-devicetree, linux-gpio, linux-mediatek, lkml
Subsystem:
open firmware and flattened device tree bindings, pin control subsystem, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Walleij, Linus Torvalds
From: Sean Wang <sean.wang@mediatek.com> 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> --- Documentation/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 f18ed99..743b32d 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".
--
2.7.4