arm64: dts: imx8mp-phyboard-pollux: Add flexcan support

Add flexcan1 and flexcan2 support for CAN FD on phyBOARD-Pollux.
Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Cem Tenruh <c.tenruh@phytec.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts

@@ -19,6 +19,26 @@ chosen {
 		stdout-path = &uart1;
 	};
 
+	reg_can1_stby: regulator-can1-stby {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_flexcan1_reg>;
+		gpio = <&gpio3 20 GPIO_ACTIVE_LOW>;
+		regulator-max-microvolt = <3300000>;
+		regulator-min-microvolt = <3300000>;
+		regulator-name = "can1-stby";
+	};
+
+	reg_can2_stby: regulator-can2-stby {
+		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_flexcan2_reg>;
+		gpio = <&gpio3 21 GPIO_ACTIVE_LOW>;
+		regulator-max-microvolt = <3300000>;
+		regulator-min-microvolt = <3300000>;
+		regulator-name = "can2-stby";
+	};
+
 	reg_usdhc2_vmmc: regulator-usdhc2 {
 		compatible = "regulator-fixed";
 		pinctrl-names = "default";
@@ -57,6 +77,21 @@ ethphy0: ethernet-phy@1 {
 	};
 };
 
+/* CAN FD */
+&flexcan1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_flexcan1>;
+	xceiver-supply = <&reg_can1_stby>;
+	status = "okay";
+};
+
+&flexcan2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_flexcan2>;
+	xceiver-supply = <&reg_can2_stby>;
+	status = "okay";
+};
+
 &i2c2 {
 	clock-frequency = <400000>;
 	pinctrl-names = "default", "gpio";
@@ -136,6 +171,32 @@ MX8MP_IOMUXC_SAI1_MCLK__GPIO4_IO20			0x10
 		>;
 	};
 
+	pinctrl_flexcan1: flexcan1grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SAI5_RXD2__CAN1_RX		0x154
+			MX8MP_IOMUXC_SAI5_RXD1__CAN1_TX		0x154
+		>;
+	};
+
+	pinctrl_flexcan2: flexcan2grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SAI5_MCLK__CAN2_RX		0x154
+			MX8MP_IOMUXC_SAI5_RXD3__CAN2_TX		0x154
+		>;
+	};
+
+	pinctrl_flexcan1_reg: flexcan1reggrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SAI5_RXC__GPIO3_IO20	0x154
+		>;
+	};
+
+	pinctrl_flexcan2_reg: flexcan2reggrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_SAI5_RXD0__GPIO3_IO21	0x154
+		>;
+	};
+
 	pinctrl_i2c2: i2c2grp {
 		fsl,pins = <
 			MX8MP_IOMUXC_I2C2_SCL__I2C2_SCL		0x400001c2