Add support for the Samsung S6E8FC0 DSI and M1906F9 display panel

index eccfc66d7fe24fbe86e3c25f35beb0855c4fcee6..b271de575e15071bc8370466428bedbf41a93d11 100644
@@ -8,13 +8,16 @@ title: Samsung AMS561RA01 panel with S6E8AA5X01 controller
 
 maintainers:
   - Kaustabh Chakraborty <[email protected]>
+  - Yedaya Katsman <[email protected]>
 
 allOf:
   - $ref: panel-common.yaml#
 
 properties:
   compatible:
-    const: samsung,s6e8aa5x01-ams561ra01
+    enum:
+      - samsung,s6e8aa5x01-ams561ra01
+      - samsung,s6e8fc0-m1906f9
 
   reg:
     maxItems: 1

index e087673237636268346979ddc270f8cf0905c722..d57d4c128cdd7fde82ba9c68b5f1b6d883a36860 100644
@@ -8183,6 +8183,11 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/display/panel/samsung,s6e3ha8.yaml
 F:	drivers/gpu/drm/panel/panel-samsung-s6e3ha8.c
 
+DRM DRIVER FOR SAMSUNG S6E8FC0 PANELS
+M:	Yedaya Katsman <[email protected]>
+S:	Maintained
+F:	drivers/gpu/drm/panel/panel-samsung-s6e8fc0-m1906f9.c
+
 DRM DRIVER FOR SAMSUNG SOFEF00 DDIC
 M:	David Heidelberg <[email protected]>
 M:	Casey Connolly <[email protected]>

index 7a83804fedca1b688ce6fbe4295ec9009007e693..fed15b7c08ba579a0a09108bca1646b4821f94c6 100644
@@ -893,6 +893,19 @@ config DRM_PANEL_SAMSUNG_S6E8AA5X01_AMS561RA01
 	  ~5.6 inch AMOLED display, and the controller is driven by the MIPI
 	  DSI protocol with 4 lanes.
 
+config DRM_PANEL_SAMSUNG_S6E8FC0
+	tristate "Samsung S6E8FC0 DSI controller"
+	depends on OF
+	depends on BACKLIGHT_CLASS_DEVICE
+	select DRM_MIPI_DSI
+	help
+	  Say Y or M here if you want to enable support for the Samsung
+	  S6E8FC0 DSI controller and connected panel.
+	  Currently supported panels:
+
+	    M1906F9 (M1906F9SH or M1906F9SI), 6.09 inch 720x1560, found
+	    in the Xiaomi Mi A3 smartphone (xiaomi-laurel).
+
 config DRM_PANEL_SAMSUNG_SOFEF00
 	tristate "Samsung SOFEF00 DSI panel controller"
 	depends on OF

index b9562a6fdcb38bfd0dfee9e8c11e16149ada4386..bf2b178f507ba1c1173d2b6a468c5fe5d23977b6 100644
@@ -91,6 +91,7 @@ obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E88A0_AMS427AP24) += panel-samsung-s6e88a0-ams4
 obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E88A0_AMS452EF01) += panel-samsung-s6e88a0-ams452ef01.o
 obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0) += panel-samsung-s6e8aa0.o
 obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8AA5X01_AMS561RA01) += panel-samsung-s6e8aa5x01-ams561ra01.o
+obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8FC0) += panel-samsung-s6e8fc0-m1906f9.o
 obj-$(CONFIG_DRM_PANEL_SAMSUNG_SOFEF00) += panel-samsung-sofef00.o
 obj-$(CONFIG_DRM_PANEL_SEIKO_43WVF1G) += panel-seiko-43wvf1g.o
 obj-$(CONFIG_DRM_PANEL_SHARP_LQ079L1SX01) += panel-sharp-lq079l1sx01.o

index 994fb0412fcbdf5466f87a325c48b697a37b514b..6eb46967712554929ab68af6f3218396b7f0118e 100644
@@ -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 {