Add fan board gpio io-expander to check fan board status.

Signed-off-by: Peter Yin <peteryin.openbmc@gmail.com>
---
 .../dts/aspeed/aspeed-bmc-facebook-harma.dts  | 38 +++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-harma.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-harma.dts
index 9d7e7208562b..58eba5fb6262 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-harma.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-harma.dts
@@ -218,6 +218,25 @@ temperature-sensor@4b {
 		compatible = "ti,tmp75";
 		reg = <0x4b>;
 	};
+
+	gpio@12 {
+		compatible = "nxp,pca9555";
+		reg = <0x12>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-parent = <&sgpiom0>;
+		interrupts = <116 IRQ_TYPE_LEVEL_LOW>;
+
+		gpio-line-names =
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"","fcb1-activate",
+		"","";
+	};
 };
 
 &i2c1 {
@@ -273,6 +292,25 @@ temperature-sensor@4b {
 		compatible = "ti,tmp75";
 		reg = <0x4b>;
 	};
+
+	gpio@12 {
+		compatible = "nxp,pca9555";
+		reg = <0x12>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-parent = <&sgpiom0>;
+		interrupts = <114 IRQ_TYPE_LEVEL_LOW>;
+
+		gpio-line-names =
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"","",
+		"","fcb0-activate",
+		"","";
+	};
 };
 
 &i2c3 {
-- 
2.25.1