arm64: dts: sparx5: Add pinctrl support

This add pinctrl support to the Microchip Sparx5 SoC.

Link: https://lore.kernel.org/r/20200615133242.24911-5-lars.povlsen@microchip.comReviewed-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: NLars Povlsen <lars.povlsen@microchip.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

arch/arm64/boot/dts/microchip/sparx5.dtsi

@@ -109,6 +109,8 @@
 		};
 
 		uart0: serial@600100000 {
+			pinctrl-0 = <&uart_pins>;
+			pinctrl-names = "default";
 			compatible = "ns16550a";
 			reg = <0x6 0x00100000 0x20>;
 			clocks = <&ahb_clk>;
@@ -120,6 +122,8 @@
 		};
 
 		uart1: serial@600102000 {
+			pinctrl-0 = <&uart2_pins>;
+			pinctrl-names = "default";
 			compatible = "ns16550a";
 			reg = <0x6 0x00102000 0x20>;
 			clocks = <&ahb_clk>;
@@ -138,5 +142,27 @@
 			interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
 		};
 
+		gpio: pinctrl@6110101e0 {
+			compatible = "microchip,sparx5-pinctrl";
+			reg = <0x6 0x110101e0 0x90>, <0x6 0x10508010 0x100>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			gpio-ranges = <&gpio 0 0 64>;
+			interrupt-controller;
+			interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
+			#interrupt-cells = <2>;
+
+			uart_pins: uart-pins {
+				pins = "GPIO_10", "GPIO_11";
+				function = "uart";
+			};
+
+			uart2_pins: uart2-pins {
+				pins = "GPIO_26", "GPIO_27";
+				function = "uart2";
+			};
+
+		};
+
 	};
 };

arch/arm64/boot/dts/microchip/sparx5_pcb134_board.dtsi

@@ -7,4 +7,9 @@
 #include "sparx5_pcb_common.dtsi"
 
 /{
+	gpio-restart {
+		compatible = "gpio-restart";
+		gpios = <&gpio 37 GPIO_ACTIVE_LOW>;
+		priority = <200>;
+	};
 };

arch/arm64/boot/dts/microchip/sparx5_pcb135_board.dtsi

@@ -7,4 +7,9 @@
 #include "sparx5_pcb_common.dtsi"
 
 /{
+	gpio-restart {
+		compatible = "gpio-restart";
+		gpios = <&gpio 37 GPIO_ACTIVE_LOW>;
+		priority = <200>;
+	};
 };