From 24a29949230c95d528d890e67004f239d4227a02 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Tue, 19 Jun 2018 19:24:41 +0200 Subject: dt-bindings: gpio: pca953x: Document interrupts, update example The device can optionally supply an interrupt, hence document that. Add required GPIO properties to the example (extracted from a patch by Wolfram Sang). Signed-off-by: Geert Uytterhoeven Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/gpio/gpio-pca953x.txt | 3 +++ 1 file changed, 3 insertions(+) (limited to 'Documentation/devicetree/bindings/gpio') diff --git a/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt b/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt index 88f228665507..4e3c550e319a 100644 --- a/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt +++ b/Documentation/devicetree/bindings/gpio/gpio-pca953x.txt @@ -37,6 +37,7 @@ Required properties: - #interrupt-cells: if to be used as interrupt expander. Optional properties: + - interrupts: interrupt specifier for the device's interrupt output. - reset-gpios: GPIO specification for the RESET input. This is an active low signal to the PCA953x. - vcc-supply: power supply regulator. @@ -49,6 +50,8 @@ Example: reg = <0x20>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_pca9505>; + gpio-controller; + #gpio-cells = <2>; interrupt-parent = <&gpio3>; interrupts = <23 IRQ_TYPE_LEVEL_LOW>; }; -- cgit v1.2.3