The PCA9539 GPIO expander requires GPIO controller properties to operate
properly.
Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
---
arch/arm/boot/dts/am335x-lxm.dts | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/am335x-lxm.dts b/arch/arm/boot/dts/am335x-lxm.dts
index cd55f11260ea..0f078465297a 100644
--- a/arch/arm/boot/dts/am335x-lxm.dts
+++ b/arch/arm/boot/dts/am335x-lxm.dts
@@ -160,11 +160,15 @@
serial_config1: serial_config1@20 {
compatible = "nxp,pca9539";
reg = <0x20>;
+ gpio-controller;
+ #gpio-cells = <2>;
};
serial_config2: serial_config2@21 {
compatible = "nxp,pca9539";
reg = <0x21>;
+ gpio-controller;
+ #gpio-cells = <2>;
};
tps: tps@2d {
--
2.17.1
