[PATCH 3/6] ARM: dts: am335x: lxm: Fix PCA9539 GPIO expander properties

[Krzysztof Kozlowski]

The PCA9539 GPIO expander requires GPIO controller properties to operate
properly.

Signed-off-by: Krzysztof Kozlowski <k...@kernel.org>
---
 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