arm64: dts: msm8998-oneplus-*: Configure S6E3FA5 & S6E3FC1 panels

These Samsung DSI panels are used on the OnePlus 5/5T respectively.
Additionally disable simplefb until a proper handoff solution can be
found to avoid conflicts between it and the MSM DRM driver.

arch/arm64/boot/dts/qcom/msm8998-oneplus-cheeseburger.dts

@@ -49,3 +49,11 @@
 		syna,codes = <KEY_BACK KEY_APPSELECT>;
 	};
 };
+
+/* Display */
+&panel {
+	compatible = "samsung,s6e3fa5";
+
+	/* The panel is mounted upside down on the OnePlus 5 */
+	rotation = <180>;
+};

arch/arm64/boot/dts/qcom/msm8998-oneplus-common.dtsi

@@ -46,6 +46,7 @@
 				 <&mmcc MDSS_PCLK0_CLK>,
 				 <&mmcc MDSS_ESC0_CLK>;
 			power-domains = <&mmcc MDSS_GDSC>;
+			status = "disabled";
 		};
 	};
 
@@ -562,9 +563,75 @@
 	firmware-name = "qcom/msm8998/oneplus/slpi_v2.mbn";
 };
 
+&mdss {
+	status = "okay";
+};
+
+&mdss_mdp {
+	status = "okay";
+};
+
+&dsi0 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	vdd-supply = <&vreg_l1a_0p875>;
+	vdda-supply = <&vreg_l2a_1p2>;
+
+	panel: panel@0 {
+		reg = <0>;
+
+		reset-gpios = <&tlmm 94 GPIO_ACTIVE_LOW>;
+		disp-te-gpios = <&tlmm 11 GPIO_ACTIVE_LOW>;
+
+		vddio-supply = <&vreg_l14a_1p88>; // TODO: Could this be moved under dsi0?
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&panel_reset_n &disp_en_default &mdp_vsync_n>;
+
+		port {
+			panel_in: endpoint {
+				remote-endpoint = <&dsi0_out>;
+			};
+		};
+	};
+};
+
+&dsi0_phy {
+	status = "okay";
+	vdds-supply = <&vreg_l1a_0p875>;
+};
+
+&dsi0_out {
+	remote-endpoint = <&panel_in>;
+	data-lanes = <0 1 2 3>;
+};
+
 &tlmm {
 	gpio-reserved-ranges = <0 4>, <81 4>;
 
+	disp_en_default: disp-en {
+		pins = "gpio62";
+		function = "gpio";
+		drive-strength = <8>;
+		bias-disable;
+	};
+
+	panel_reset_n: panel-rst-n {
+		pins = "gpio94";
+		function = "gpio";
+		drive-strength = <8>;
+		bias-disable;
+	};
+
+	mdp_vsync_n: mdp-vsync-n {
+		pins = "gpio11";
+		function = "mdp_vsync_a";
+		drive-strength = <2>;
+		bias-pull-down;
+	};
+
 	hall_sensor_default: hall-sensor-default {
 		pins = "gpio124";
 		function = "gpio";

arch/arm64/boot/dts/qcom/msm8998-oneplus-dumpling.dts

@@ -24,3 +24,8 @@
 &rmi4_f12 {
 	touchscreen-y-mm = <137>;
 };
+
+/* Display */
+&panel {
+	compatible = "samsung,s6e3fc1";
+};