ARM: dts: exynos: Configure max77686 IRQ pin on Midas

This pin is externally pulled up, so we need to disable the
SoC's internal pull-down.

Signed-off-by: Simon Shields <simon@lineageos.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
diff --git a/arch/arm/boot/dts/exynos4412-midas.dtsi b/arch/arm/boot/dts/exynos4412-midas.dtsi
index 58b298d..dd56e4d 100644
--- a/arch/arm/boot/dts/exynos4412-midas.dtsi
+++ b/arch/arm/boot/dts/exynos4412-midas.dtsi
@@ -580,6 +580,8 @@
 		compatible = "maxim,max77686";
 		interrupt-parent = <&gpx0>;
 		interrupts = <7 IRQ_TYPE_NONE>;
+		pinctrl-0 = <&max77686_irq>;
+		pinctrl-names = "default";
 		reg = <0x09>;
 		#clock-cells = <1>;
 
@@ -1018,6 +1020,11 @@
 		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
 	};
 
+	max77686_irq: max77686-irq {
+		samsung,pins = "gpx0-7";
+		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+	};
+
 	max77693_irq: max77693-irq {
 		samsung,pins = "gpx1-5";
 		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;