arm64: dts: qcom: msm8916-samsung-serranove: Add display panel

Add the Samsung S6E88A0-AMS427AP24 panel to the device tree for the
Samsung Galaxy S4 Mini Value Edition. By default the panel displays
everything horizontally flipped, so add "flip-horizontal" to the panel
node to correct that.

Signed-off-by: Stephan Gerhold <[email protected]>
Co-developed-by: Jakob Hauser <[email protected]>
Signed-off-by: Jakob Hauser <[email protected]>
Reviewed-by: Konrad Dybcio <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bjorn Andersson <[email protected]>

Author: stephan-gh

arch/arm64/boot/dts/qcom/msm8916-samsung-serranove.dts

@@ -321,6 +321,41 @@
 	status = "okay";
 };
 
+&gpu {
+	status = "okay";
+};
+
+&mdss {
+	status = "okay";
+};
+
+&mdss_dsi0 {
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&mdss_default>;
+	pinctrl-1 = <&mdss_sleep>;
+
+	panel@0 {
+		compatible = "samsung,s6e88a0-ams427ap24";
+		reg = <0>;
+
+		vdd3-supply = <&pm8916_l17>;
+		vci-supply = <&pm8916_l6>;
+		reset-gpios = <&tlmm 25 GPIO_ACTIVE_LOW>;
+		flip-horizontal;
+
+		port {
+			panel_in: endpoint {
+				remote-endpoint = <&mdss_dsi0_out>;
+			};
+		};
+	};
+};
+
+&mdss_dsi0_out {
+	data-lanes = <0 1>;
+	remote-endpoint = <&panel_in>;
+};
+
 &mpss_mem {
 	reg = <0x0 0x86800000 0x0 0x5a00000>;
 };
@@ -330,6 +365,13 @@
 	linux,code = <KEY_VOLUMEDOWN>;
 };
 
+&pm8916_rpm_regulators {
+	pm8916_l17: l17 {
+		regulator-min-microvolt = <2850000>;
+		regulator-max-microvolt = <2850000>;
+	};
+};
+
 &pm8916_vib {
 	status = "okay";
 };
@@ -425,6 +467,22 @@
 		bias-disable;
 	};
 
+	mdss_default: mdss-default-state {
+		pins = "gpio25";
+		function = "gpio";
+
+		drive-strength = <8>;
+		bias-disable;
+	};
+
+	mdss_sleep: mdss-sleep-state {
+		pins = "gpio25";
+		function = "gpio";
+
+		drive-strength = <2>;
+		bias-pull-down;
+	};
+
 	muic_i2c_default: muic-i2c-default-state {
 		pins = "gpio105", "gpio106";
 		function = "gpio";