Enable the MDSS nodes and add supplies and bindings for the Samsung S6E8FC0
DSI controller for the M1906F9 panel.

The ldo and iovcc gpio pins boot up with a current of 16 mA, but they work
fine with 2mA, so I used that.

mdss_dsi0_phy is powered by VDD_MX, see power-domains in sm6125.dtsi

Co-developed-by: Kamil Gołda <kamil.golda@protonmail.com>
Signed-off-by: Kamil Gołda <kamil.golda@protonmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Yedaya Katsman <yedaya.ka@gmail.com>
---
 .../boot/dts/qcom/sm6125-xiaomi-laurel-sprout.dts  | 94 ++++++++++++++++++++++
 1 file changed, 94 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm6125-xiaomi-laurel-sprout.dts b/arch/arm64/boot/dts/qcom/sm6125-xiaomi-laurel-sprout.dts
index 994fb0412fcbdf5466f87a325c48b697a37b514b..6eb46967712554929ab68af6f3218396b7f0118e 100644
--- a/arch/arm64/boot/dts/qcom/sm6125-xiaomi-laurel-sprout.dts
+++ b/arch/arm64/boot/dts/qcom/sm6125-xiaomi-laurel-sprout.dts
@@ -82,6 +82,33 @@ key-volume-up {
 		};
 	};
 
+	panel_vdd_1p8: regulator-panel-vdd {
+		compatible = "regulator-fixed";
+		regulator-name = "panel_vdd_1p8";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-boot-on;
+		vin-supply = <&vreg_l9a>;
+
+		enable-active-high;
+		gpio = <&tlmm 26 GPIO_ACTIVE_HIGH>;
+		pinctrl-0 = <&panel_vdd_1p8_en>;
+		pinctrl-names = "default";
+	};
+
+	panel_vci_3p0: regulator-panel-vci {
+		compatible = "regulator-fixed";
+		regulator-name = "panel_vci_3p0";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-boot-on;
+
+		enable-active-high;
+		gpio = <&tlmm 124 GPIO_ACTIVE_HIGH>;
+		pinctrl-0 = <&panel_vci_3p0_en>;
+		pinctrl-names = "default";
+	};
+
 	thermal-zones {
 		rf-pa0-thermal {
 			thermal-sensors = <&pm6125_adc_tm 0>;
@@ -128,6 +155,45 @@ &hsusb_phy1 {
 	status = "okay";
 };
 
+&mdss {
+	status = "okay";
+};
+
+&mdss_dsi0 {
+	vdda-supply = <&vreg_l18a>;
+	status = "okay";
+
+	panel@0 {
+		compatible = "samsung,s6e8fc0-m1906f9";
+		reg = <0>;
+
+		reset-gpios = <&tlmm 90 GPIO_ACTIVE_LOW>;
+
+		pinctrl-0 = <&mdss_default>;
+		pinctrl-1 = <&mdss_sleep>;
+		pinctrl-names = "default", "sleep";
+
+		vdd-supply = <&panel_vdd_1p8>;
+		vci-supply = <&panel_vci_3p0>;
+
+		port {
+			panel_in: endpoint {
+				remote-endpoint = <&mdss_dsi0_out>;
+			};
+		};
+	};
+};
+
+&mdss_dsi0_out {
+	data-lanes = <0 1 2 3>;
+	remote-endpoint = <&panel_in>;
+};
+
+
+&mdss_dsi0_phy {
+	status = "okay";
+};
+
 &pm6125_adc {
 	pinctrl-names = "default";
 	pinctrl-0 = <&camera_flash_therm &emmc_ufs_therm>;
@@ -387,6 +453,34 @@ &sdhc_2 {
 
 &tlmm {
 	gpio-reserved-ranges = <22 2>, <28 6>;
+
+	panel_vdd_1p8_en: panel-vdd-default-state {
+		pins = "gpio26";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-up;
+	};
+
+	mdss_default: mdss-default-state {
+		pins = "gpio90";
+		function = "gpio";
+		drive-strength = <8>;
+		bias-disable;
+	};
+
+	mdss_sleep: mdss-sleep-state {
+		pins = "gpio90";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-down;
+	};
+
+	panel_vci_3p0_en: panel-vci-default-state {
+		pins = "gpio124";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-up;
+	};
 };
 
 &ufs_mem_hc {

-- 
2.53.0