The PCA95xx GPIO expander requires GPIO controller properties to operate properly. Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> --- arch/arm/boot/dts/dove-sbc-a510.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/dove-sbc-a510.dts b/arch/arm/boot/dts/dove-sbc-a510.dts index 2bb85a9b7614..df021f9b0117 100644 --- a/arch/arm/boot/dts/dove-sbc-a510.dts +++ b/arch/arm/boot/dts/dove-sbc-a510.dts @@ -143,6 +143,7 @@ gpio_ext: gpio@20 { compatible = "nxp,pca9555"; reg = <0x20>; + gpio-controller; #gpio-cells = <2>; }; }; -- 2.17.1