Draft: WIP Kontron i.MX8MM/MP OSM-S Devicetree Improvements

CC: @akobou

arch/arm64/boot/dts/freescale/imx8mp-kontron-bl-osm-s.dts

@@ -18,8 +18,6 @@ aliases {
 
 	leds {
 		compatible = "gpio-leds";
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_gpio_led>;
 
 		led1 {
 			label = "led1";
@@ -35,8 +33,6 @@ pwm-beeper {
 
 	reg_vcc_panel: regulator-vcc-panel {
 		compatible = "regulator-fixed";
-		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_reg_vcc_panel>;
 		enable-active-high;
 		gpio = <&gpio4 3 GPIO_ACTIVE_HIGH>;
 		regulator-max-microvolt = <3300000>;
@@ -189,6 +185,10 @@ &pwm2 {
 	status = "okay";
 };
 
+&reg_usdhc2_vcc {
+	status = "disabled";
+};
+
 &snvs_pwrkey {
 	status = "okay";
 };
@@ -260,6 +260,9 @@ &usb3_phy1 {
 };
 
 &usdhc2 {
+	pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
+	pinctrl-1 = <&pinctrl_usdhc2_100mhz>, <&pinctrl_usdhc2_gpio>;
+	pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_gpio>;
 	vmmc-supply = <&reg_vdd_3v3>;
 	status = "okay";
 };
@@ -277,12 +280,6 @@ MX8MP_IOMUXC_GPIO1_IO00__GPIO1_IO00		0x46
 		>;
 	};
 
-	pinctrl_gpio_led: gpioledgrp {
-		fsl,pins = <
-			MX8MP_IOMUXC_GPIO1_IO05__GPIO1_IO05		0x46
-		>;
-	};
-
 	pinctrl_gpio2: gpio2grp {
 		fsl,pins = <
 			MX8MP_IOMUXC_SD2_RESET_B__GPIO2_IO19		0x46
@@ -290,12 +287,6 @@ MX8MP_IOMUXC_SD2_WP__GPIO2_IO20			0x46
 		>;
 	};
 
-	pinctrl_reg_vcc_panel: regvccpanelgrp {
-		fsl,pins = <
-			MX8MP_IOMUXC_SAI1_RXD1__GPIO4_IO03		0x19
-		>;
-	};
-
 	pinctrl_usb_hub: usbhubgrp {
 		fsl,pins = <
 			MX8MP_IOMUXC_NAND_DQS__GPIO3_IO14		0x46