linux-kernel - [PATCH RFT v2 2/2] arm64: dts: qcom: glymur-crd: Enable eDP display support

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Message-Id: <20260113-dts-qcom-glymur-crd-add-edp-v2-2-8026af65ecbb@oss.qualcomm.com>
Date: Tue, 13 Jan 2026 17:00:06 +0200
From: Abel Vesa <abel.vesa@....qualcomm.com>
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@....qualcomm.com>,
        Abel Vesa <abelvesa@...nel.org>
Subject: [PATCH RFT v2 2/2] arm64: dts: qcom: glymur-crd: Enable eDP
 display support

From: Abel Vesa <abel.vesa@...aro.org>

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>
Signed-off-by: Abel Vesa <abel.vesa@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/glymur-crd.dts | 71 +++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/glymur-crd.dts b/arch/arm64/boot/dts/qcom/glymur-crd.dts
index 3188bfa27bea..db8307f06bac 100644
--- a/arch/arm64/boot/dts/qcom/glymur-crd.dts
+++ b/arch/arm64/boot/dts/qcom/glymur-crd.dts
@@ -147,6 +147,22 @@ 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";
 
@@ -493,6 +509,20 @@ &tlmm {
 			       <10 2>, /* OOB UART */
 			       <44 4>; /* Security SPI (TPM) */
 
+	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;
+	};
+
 	pcie4_default: pcie4-default-state {
 		clkreq-n-pins {
 			pins = "gpio147";
@@ -900,6 +930,47 @@ &gpi_dma2 {
 	status = "okay";
 };
 
+&mdss {
+	status = "okay";
+};
+
+&mdss_dp3 {
+	/delete-property/ #sound-dai-cells;
+
+	status = "okay";
+
+	aux-bus {
+		panel {
+			compatible = "samsung,atna60cl08", "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>;
+				};
+			};
+		};
+	};
+};
+
+&mdss_dp3_out {
+	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 {
 	qcom,no-alarm;
 };

-- 
2.48.1