arm64: dts: qcom: glymur: Enable SoC-wise display and eDP panel on CRD

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

Posted by Abel Vesa 6 days, 9 hours ago

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@linaro.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

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

Posted by Dmitry Baryshkov 6 days, 8 hours ago

On Thu, Sep 25, 2025 at 06:02:49PM +0300, Abel Vesa wrote:
> 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@linaro.org>
> ---
>  arch/arm64/boot/dts/qcom/glymur-crd.dts | 76 +++++++++++++++++++++++++++++++++
>  1 file changed, 76 insertions(+)
> 
> @@ -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 {

Define the endpoint in the SoC DTSI and just reference it here.

> +				data-lanes = <0 1 2 3>;
> +				link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
> +
> +				remote-endpoint = <&edp_panel_in>;
> +			};
> +		};
> +	};
> +};
> +

-- 
With best wishes
Dmitry

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

Posted by Abel Vesa 5 days, 17 hours ago

On 25-09-25 19:46:45, Dmitry Baryshkov wrote:
> On Thu, Sep 25, 2025 at 06:02:49PM +0300, Abel Vesa wrote:
> > 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@linaro.org>
> > ---
> >  arch/arm64/boot/dts/qcom/glymur-crd.dts | 76 +++++++++++++++++++++++++++++++++
> >  1 file changed, 76 insertions(+)
> > 
> > @@ -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 {
> 
> Define the endpoint in the SoC DTSI and just reference it here.

Will do.

Thanks for reviewing.

Abel