arm64: dts: mediatek: mt6795: Create soc bus node and move mmio devices

MMIO devices should be inside of a soc bus node, as it's done for the
vast majority of ARM64 devicetrees, and for almost all MTK devicetrees.
Create a simple-bus soc node and move all devices with a MMIO address
space in there.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220609112303.117928-2-angelogioacchino.delregno@collabora.comSigned-off-by: Matthias Brugger <matthias.bgg@gmail.com>

arch/arm64/boot/dts/mediatek/mt6795.dtsi

@@ -117,59 +117,66 @@ timer {
 			     (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>;
 	};
 
-	sysirq: intpol-controller@10200620 {
-		compatible = "mediatek,mt6795-sysirq",
-			     "mediatek,mt6577-sysirq";
-		interrupt-controller;
-		#interrupt-cells = <3>;
-		interrupt-parent = <&gic>;
-		reg = <0 0x10200620 0 0x20>;
-	};
+	soc {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		compatible = "simple-bus";
+		ranges;
+
+		sysirq: intpol-controller@10200620 {
+			compatible = "mediatek,mt6795-sysirq",
+				     "mediatek,mt6577-sysirq";
+			interrupt-controller;
+			#interrupt-cells = <3>;
+			interrupt-parent = <&gic>;
+			reg = <0 0x10200620 0 0x20>;
+		};
 
-	gic: interrupt-controller@10221000 {
-		compatible = "arm,gic-400";
-		#interrupt-cells = <3>;
-		interrupt-parent = <&gic>;
-		interrupt-controller;
-		reg = <0 0x10221000 0 0x1000>,
-		      <0 0x10222000 0 0x2000>,
-		      <0 0x10224000 0 0x2000>,
-		      <0 0x10226000 0 0x2000>;
-	};
+		gic: interrupt-controller@10221000 {
+			compatible = "arm,gic-400";
+			#interrupt-cells = <3>;
+			interrupt-parent = <&gic>;
+			interrupt-controller;
+			reg = <0 0x10221000 0 0x1000>,
+			      <0 0x10222000 0 0x2000>,
+			      <0 0x10224000 0 0x2000>,
+			      <0 0x10226000 0 0x2000>;
+		};
 
-	uart0: serial@11002000 {
-		compatible = "mediatek,mt6795-uart",
-			     "mediatek,mt6577-uart";
-		reg = <0 0x11002000 0 0x400>;
-		interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_LOW>;
-		clocks = <&uart_clk>;
-		status = "disabled";
-	};
+		uart0: serial@11002000 {
+			compatible = "mediatek,mt6795-uart",
+				     "mediatek,mt6577-uart";
+			reg = <0 0x11002000 0 0x400>;
+			interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_LOW>;
+			clocks = <&uart_clk>;
+			status = "disabled";
+		};
 
-	uart1: serial@11003000 {
-		compatible = "mediatek,mt6795-uart",
-			     "mediatek,mt6577-uart";
-		reg = <0 0x11003000 0 0x400>;
-		interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_LOW>;
-		clocks = <&uart_clk>;
-		status = "disabled";
-	};
+		uart1: serial@11003000 {
+			compatible = "mediatek,mt6795-uart",
+				     "mediatek,mt6577-uart";
+			reg = <0 0x11003000 0 0x400>;
+			interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_LOW>;
+			clocks = <&uart_clk>;
+			status = "disabled";
+		};
 
-	uart2: serial@11004000 {
-		compatible = "mediatek,mt6795-uart",
-			     "mediatek,mt6577-uart";
-		reg = <0 0x11004000 0 0x400>;
-		interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_LOW>;
-		clocks = <&uart_clk>;
-		status = "disabled";
-	};
+		uart2: serial@11004000 {
+			compatible = "mediatek,mt6795-uart",
+				     "mediatek,mt6577-uart";
+			reg = <0 0x11004000 0 0x400>;
+			interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_LOW>;
+			clocks = <&uart_clk>;
+			status = "disabled";
+		};
 
-	uart3: serial@11005000 {
-		compatible = "mediatek,mt6795-uart",
-			     "mediatek,mt6577-uart";
-		reg = <0 0x11005000 0 0x400>;
-		interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_LOW>;
-		clocks = <&uart_clk>;
-		status = "disabled";
+		uart3: serial@11005000 {
+			compatible = "mediatek,mt6795-uart",
+				     "mediatek,mt6577-uart";
+			reg = <0 0x11005000 0 0x400>;
+			interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_LOW>;
+			clocks = <&uart_clk>;
+			status = "disabled";
+		};
 	};
 };