Add embedded controller node for Hamoa IOT EVK boards which adds fan
control, temperature sensors, access to EC internal state changes and
suspend entry/exit notifications to the EC.

Signed-off-by: Sibi Sankar <sibi.sankar@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts  | 10 ++++++++++
 arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi |  6 ++++++
 2 files changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
index 630642baa435..3cbbc4a0dfdf 100644
--- a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
+++ b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
@@ -799,6 +799,16 @@ eusb6_repeater: redriver@4f {
 		pinctrl-0 = <&eusb6_reset_n>;
 		pinctrl-names = "default";
 	};
+
+	embedded-controller@76 {
+		compatible = "qcom,hamoa-it8987-ec", "qcom,hamoa-ec";
+		reg = <0x76>;
+
+		interrupts-extended = <&tlmm 66 IRQ_TYPE_EDGE_FALLING>;
+
+		pinctrl-0 = <&ec_int_n_default>;
+		pinctrl-names = "default";
+	};
 };
 
 &i2c7 {
diff --git a/arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi b/arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi
index b8e3e04a6fbd..763399393daf 100644
--- a/arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi
+++ b/arch/arm64/boot/dts/qcom/hamoa-iot-som.dtsi
@@ -475,6 +475,12 @@ &remoteproc_cdsp {
 &tlmm {
 	gpio-reserved-ranges = <34 2>; /* TPM LP & INT */
 
+	ec_int_n_default: ec-int-n-state {
+		pins = "gpio66";
+		function = "gpio";
+		bias-disable;
+	};
+
 	pcie3_default: pcie3-default-state {
 		clkreq-n-pins {
 			pins = "gpio144";
-- 
2.34.1