From: Sibi Sankar <sibi.sankar@oss.qualcomm.com>

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>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Co-developed-by: Anvesh Jain P <anvesh.p@oss.qualcomm.com>
Signed-off-by: Anvesh Jain P <anvesh.p@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts | 16 ++++++++++++++++
 1 file 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 460f27dcd6f6..a0d2ccf931ec 100644
--- a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
+++ b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
@@ -831,6 +831,16 @@ eusb6_repeater: redriver@4f {
 		pinctrl-0 = <&eusb6_reset_n>;
 		pinctrl-names = "default";
 	};
+
+	embedded-controller@76 {
+		compatible = "qcom,hamoa-iot-evk-ec", "qcom,hamoa-crd-ec";
+		reg = <0x76>;
+
+		interrupts-extended = <&tlmm 66 IRQ_TYPE_EDGE_FALLING>;
+
+		pinctrl-0 = <&ec_int_n_default>;
+		pinctrl-names = "default";
+	};
 };
 
 &i2c7 {
@@ -1320,6 +1330,12 @@ right_tweeter: speaker@0,1 {
 };
 
 &tlmm {
+	ec_int_n_default: ec-int-n-state {
+		pins = "gpio66";
+		function = "gpio";
+		bias-disable;
+	};
+
 	edp_reg_en: edp-reg-en-state {
 		pins = "gpio70";
 		function = "gpio";

-- 
2.34.1

On 3/25/2026 5:09 PM, Anvesh Jain P wrote:
> From: Sibi Sankar <sibi.sankar@oss.qualcomm.com>
> 
> 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>
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
> Co-developed-by: Anvesh Jain P <anvesh.p@oss.qualcomm.com>
> Signed-off-by: Anvesh Jain P <anvesh.p@oss.qualcomm.com>
> ---
>   arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts | 16 ++++++++++++++++
>   1 file 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 460f27dcd6f6..a0d2ccf931ec 100644
> --- a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
> +++ b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
> @@ -831,6 +831,16 @@ eusb6_repeater: redriver@4f {
>   		pinctrl-0 = <&eusb6_reset_n>;
>   		pinctrl-names = "default";
>   	};
> +
> +	embedded-controller@76 {
> +		compatible = "qcom,hamoa-iot-evk-ec", "qcom,hamoa-crd-ec";
> +		reg = <0x76>;
> +
> +		interrupts-extended = <&tlmm 66 IRQ_TYPE_EDGE_FALLING>;
> +
> +		pinctrl-0 = <&ec_int_n_default>;
> +		pinctrl-names = "default";
> +	};
>   };
>   
For Hamoa iot evk board, i have also tried and cooling nodes are 
reflecting fine.
Please feel free to add:
Reviewed-by: Gaurav Kohli <gaurav.kohli@oss.qualcomm.com>
Tested-by: Gaurav Kohli <gaurav.kohli@oss.qualcomm.com>

On 3/25/2026 5:50 PM, Gaurav Kohli wrote:
> 
> 
> On 3/25/2026 5:09 PM, Anvesh Jain P wrote:
>> From: Sibi Sankar <sibi.sankar@oss.qualcomm.com>
>>
>> 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>
>> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
>> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
>> Co-developed-by: Anvesh Jain P <anvesh.p@oss.qualcomm.com>
>> Signed-off-by: Anvesh Jain P <anvesh.p@oss.qualcomm.com>
>> ---
>>   arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts | 16 ++++++++++++++++
>>   1 file 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 460f27dcd6f6..a0d2ccf931ec 100644
>> --- a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
>> +++ b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
>> @@ -831,6 +831,16 @@ eusb6_repeater: redriver@4f {
>>           pinctrl-0 = <&eusb6_reset_n>;
>>           pinctrl-names = "default";
>>       };
>> +
>> +    embedded-controller@76 {
>> +        compatible = "qcom,hamoa-iot-evk-ec", "qcom,hamoa-crd-ec";
>> +        reg = <0x76>;
>> +
>> +        interrupts-extended = <&tlmm 66 IRQ_TYPE_EDGE_FALLING>;
>> +
>> +        pinctrl-0 = <&ec_int_n_default>;
>> +        pinctrl-names = "default";
>> +    };
>>   };
>>   
> For Hamoa iot evk board, i have also tried and cooling nodes are
> reflecting fine.
> Please feel free to add:
> Reviewed-by: Gaurav Kohli <gaurav.kohli@oss.qualcomm.com>
> Tested-by: Gaurav Kohli <gaurav.kohli@oss.qualcomm.com>
>

Thanks for testing. Will add the tags in next re-spin.

-- 
Best Regards,
Anvesh