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From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Date: Mon, 27 May 2024 13:03:51 +0300
Subject: [PATCH v3 6/6] arm64: dts: qcom: c630: Add Embedded Controller
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Message-Id: <20240527-yoga-ec-driver-v3-6-327a9851dad5@linaro.org>
References: <20240527-yoga-ec-driver-v3-0-327a9851dad5@linaro.org>
In-Reply-To: <20240527-yoga-ec-driver-v3-0-327a9851dad5@linaro.org>
To: Sebastian Reichel <sre@kernel.org>, Rob Herring <robh@kernel.org>, 
 Krzysztof Kozlowski <krzk+dt@kernel.org>, 
 Conor Dooley <conor+dt@kernel.org>, Bjorn Andersson <andersson@kernel.org>, 
 Hans de Goede <hdegoede@redhat.com>, 
 =?utf-8?q?Ilpo_J=C3=A4rvinen?= <ilpo.jarvinen@linux.intel.com>, 
 Bryan O'Donoghue <bryan.odonoghue@linaro.org>, 
 Heikki Krogerus <heikki.krogerus@linux.intel.com>, 
 Greg Kroah-Hartman <gregkh@linuxfoundation.org>, 
 Konrad Dybcio <konrad.dybcio@linaro.org>
Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org, 
 linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org, 
 linux-usb@vger.kernel.org, linux-arm-msm@vger.kernel.org, 
 Nikita Travkin <nikita@trvn.ru>, Bjorn Andersson <andersson@kernel.org>

From: Bjorn Andersson <andersson@kernel.org>

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@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 .../boot/dts/qcom/sdm850-lenovo-yoga-c630.dts      | 76 ++++++++++++++++++++++
 1 file changed, 76 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 47dc42f6e936..d975f78eb3ab 100644
--- a/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
+++ b/arch/arm64/boot/dts/qcom/sdm850-lenovo-yoga-c630.dts
@@ -370,6 +370,66 @@ 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 = "dual";
+			data-role = "host";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+
+					ucsi0_hs_in: endpoint {
+						remote-endpoint = <&usb_1_dwc3_hs>;
+					};
+				};
+
+				port@1 {
+					reg = <1>;
+
+					ucsi0_ss_in: endpoint {
+						remote-endpoint = <&usb_1_qmpphy_out>;
+					};
+				};
+
+				port@2 {
+					reg = <2>;
+
+					ucsi0_sbu: endpoint {
+					};
+				};
+			};
+		};
+
+		connector@1 {
+			compatible = "usb-c-connector";
+			reg = <1>;
+			power-role = "dual";
+			data-role = "host";
+
+			/*
+			 * connected to the onboard USB hub, orientation is
+			 * handled by the controller
+			 */
+		};
+	};
 };
 
 &i2c3 {
@@ -694,6 +754,14 @@ mode_pin_active: mode-pin-state {
 
 		bias-disable;
 	};
+
+	ec_int_state: ec-int-state {
+		pins = "gpio20";
+		function = "gpio";
+
+		input-enable;
+		bias-disable;
+	};
 };
 
 &uart6 {
@@ -741,6 +809,10 @@ &usb_1_dwc3 {
 	dr_mode = "host";
 };
 
+&usb_1_dwc3_hs {
+	remote-endpoint = <&ucsi0_hs_in>;
+};
+
 &usb_1_hsphy {
 	status = "okay";
 
@@ -761,6 +833,10 @@ &usb_1_qmpphy {
 	vdda-pll-supply = <&vdda_usb1_ss_core>;
 };
 
+&usb_1_qmpphy_out {
+	remote-endpoint = <&ucsi0_ss_in>;
+};
+
 &usb_2 {
 	status = "okay";
 };

-- 
2.39.2