linux-kernel - [PATCH 3/4] arm64: dts: qcom: c630: Add Embedded Controller node

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Date:   Tue,  9 Aug 2022 22:54:23 -0500
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 3/4] arm64: dts: qcom: c630: Add Embedded Controller node

The Embedded Controller in the Lenovo Yoga C630 is accessible on &i2c1
and provides battery and adapter status, as well as altmode
notifications for the second USB Type-C port.

Add a definition for the EC.

Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---
 .../boot/dts/qcom/sdm850-lenovo-yoga-c630.dts | 35 +++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
index a7af1bed4312..1b9b36faea27 100644
--- a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
+++ b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
@@ -352,6 +352,33 @@ zap-shader {
 &i2c1 {
 	status = "okay";
 	clock-frequency = <400000>;
+
+	embedded-controller@70 {
+		compatible = "lenovo,yoga-c630-ec";
+		reg = <0x70>;
+
+		interrupts-extended = <&tlmm 20 IRQ_TYPE_LEVEL_HIGH>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&ec_int_state>;
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		connector@0 {
+			compatible = "usb-c-connector";
+			reg = <0>;
+			power-role = "source";
+			data-role = "host";
+		};
+
+		connector@1 {
+			compatible = "usb-c-connector";
+			reg = <1>;
+			power-role = "source";
+			data-role = "host";
+		};
+	};
 };
 
 &i2c3 {
@@ -676,6 +703,14 @@ mode_pin_active: mode-pin {
 		input-enable;
 		bias-disable;
 	};
+
+	ec_int_state: ec-int-state {
+		pins = "gpio20";
+		function = "gpio";
+
+		input-enable;
+		bias-disable;
+	};
 };
 
 &uart6 {
-- 
2.37.1