linux-kernel - [PATCH 2/2] arm64: dts: qcom: glymur-crd: Enable eDP display support

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Message-Id: <20250925-dts-qcom-glymur-crd-add-edp-v1-2-20233de3c1e2@linaro.org>
Date: Thu, 25 Sep 2025 18:02:49 +0300
From: Abel Vesa <abel.vesa@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: Pankaj Patil <pankaj.patil@....qualcomm.com>, 
 linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Abel Vesa <abel.vesa@...aro.org>
Subject: [PATCH 2/2] arm64: dts: qcom: glymur-crd: Enable eDP display
 support

Enable the MDSS (Mobile Display SubSystem) along with the 3rd
DisplayPort controller and its PHY in order to bring support
for the panel on Glymur CRD platform. Also describe the voltage
regulator needed by the eDP panel.

Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
---
 arch/arm64/boot/dts/qcom/glymur-crd.dts | 76 +++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/glymur-crd.dts b/arch/arm64/boot/dts/qcom/glymur-crd.dts
index 17c8f1a4f4061303982a210b7690783c96ef80b2..1d7e69a27612aea3bfdb2eedad48d8bdb9e7dc8f 100644
--- a/arch/arm64/boot/dts/qcom/glymur-crd.dts
+++ b/arch/arm64/boot/dts/qcom/glymur-crd.dts
@@ -172,6 +172,22 @@ pmic_glink_ss_in2: endpoint {
 		};
 	};
 
+	vreg_edp_3p3: regulator-edp-3p3 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "VREG_EDP_3P3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&tlmm 70 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-0 = <&edp_reg_en>;
+		pinctrl-names = "default";
+
+		regulator-boot-on;
+	};
+
 	vreg_nvme: regulator-nvme {
 		compatible = "regulator-fixed";
 
@@ -536,6 +552,52 @@ vreg_l4h_e0_1p2: ldo4 {
 	};
 };
 
+&mdss {
+	status = "okay";
+};
+
+&mdss_dp3 {
+	/delete-property/ #sound-dai-cells;
+
+	status = "okay";
+
+	aux-bus {
+		panel {
+			compatible = "samsung,atna60cl01", "samsung,atna33xc20";
+			enable-gpios = <&tlmm 18 GPIO_ACTIVE_HIGH>;
+			power-supply = <&vreg_edp_3p3>;
+
+			pinctrl-0 = <&edp_bl_en>;
+			pinctrl-names = "default";
+
+			port {
+				edp_panel_in: endpoint {
+					remote-endpoint = <&mdss_dp3_out>;
+				};
+			};
+		};
+	};
+
+	ports {
+		port@1 {
+			reg = <1>;
+			mdss_dp3_out: endpoint {
+				data-lanes = <0 1 2 3>;
+				link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
+
+				remote-endpoint = <&edp_panel_in>;
+			};
+		};
+	};
+};
+
+&mdss_dp3_phy {
+	vdda-phy-supply = <&vreg_l2f_e1_0p83>;
+	vdda-pll-supply = <&vreg_l4f_e1_1p08>;
+
+	status = "okay";
+};
+
 &pmk8850_rtc {
 	no-alarm;
 };
@@ -570,6 +632,20 @@ &remoteproc_soccp {
 };
 
 &tlmm {
+	edp_bl_en: edp-bl-en-state {
+		pins = "gpio18";
+		function = "gpio";
+		drive-strength = <16>;
+		bias-disable;
+	};
+
+	edp_reg_en: edp-reg-en-state {
+		pins = "gpio70";
+		function = "gpio";
+		drive-strength = <16>;
+		bias-disable;
+	};
+
 	pcie5_default: pcie5-default-state {
 		clkreq-n-pins {
 			pins = "gpio153";

-- 
2.48.1