The Lenovo Slim7x uses the same Embedded Controller as the Qualcomm
Hamoa Customer Reference Device (X1). Wire it up for fan control,
thermal sensor and suspend behaviour.

Dependencies:
https://lore.kernel.org/all/20260427-add-driver-for-ec-v8-0-702f74e495f7@oss.qualcomm.com/

Signed-off-by: Daniel J Blueman <daniel@quora.org>
---
 .../dts/qcom/x1e80100-lenovo-yoga-slim7x.dts  | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts b/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts
index beb1475d7fa0..22c4ad34a2a4 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts
+++ b/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts
@@ -951,6 +951,22 @@ retimer_ss0_con_sbu_out: endpoint {
 	};
 };
 
+&i2c5 {
+	clock-frequency = <400000>;
+
+	status = "okay";
+
+	embedded-controller@76 {
+		compatible = "qcom,glymur-crd-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 {
 	clock-frequency = <400000>;
 
@@ -1352,6 +1368,12 @@ &tlmm {
 			       <44 4>, /* SPI (TPM) */
 			       <238 1>; /* UFS Reset */
 
+	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";
-- 
2.53.0

On 4/29/26 12:32 PM, Daniel J Blueman wrote:
> The Lenovo Slim7x uses the same Embedded Controller as the Qualcomm
> Hamoa Customer Reference Device (X1). Wire it up for fan control,
> thermal sensor and suspend behaviour.
> 
> Dependencies:
> https://lore.kernel.org/all/20260427-add-driver-for-ec-v8-0-702f74e495f7@oss.qualcomm.com/

This should not be part of the commit message - please put it under
the --- line, so git doesn't keep it in history
> 
> Signed-off-by: Daniel J Blueman <daniel@quora.org>
> ---
>  .../dts/qcom/x1e80100-lenovo-yoga-slim7x.dts  | 22 +++++++++++++++++++
>  1 file changed, 22 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts b/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts
> index beb1475d7fa0..22c4ad34a2a4 100644
> --- a/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts
> +++ b/arch/arm64/boot/dts/qcom/x1e80100-lenovo-yoga-slim7x.dts
> @@ -951,6 +951,22 @@ retimer_ss0_con_sbu_out: endpoint {
>  	};
>  };
>  
> +&i2c5 {
> +	clock-frequency = <400000>;
> +
> +	status = "okay";
> +
> +	embedded-controller@76 {
> +		compatible = "qcom,glymur-crd-ec", "qcom,hamoa-crd-ec";

This should have its own compatible. The Glymur CRD is a different
laptop, with a different SoC. That will need a change to

Documentation/devicetree/bindings/embedded-controller/qcom,hamoa-crd-ec.yaml

so that dt validation passes

Konrad