arm64: dts: marvell: use new clock binding on Armada AP806

This commit updates the Marvell AP806 Device Tree description to make
use of the accepted clock Device Tree binding.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>

arch/arm64/boot/dts/marvell/armada-ap806.dtsi

@@ -179,7 +179,7 @@ spi0: spi@510600 {
 				#size-cells = <0>;
 				cell-index = <0>;
 				interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
-				clocks = <&ringclk 2>;
+				clocks = <&ap_syscon 3>;
 				status = "disabled";
 			};
 
@@ -190,7 +190,7 @@ i2c0: i2c@511000 {
 				#size-cells = <0>;
 				interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
 				timeout-ms = <1000>;
-				clocks = <&ringclk 2>;
+				clocks = <&ap_syscon 3>;
 				status = "disabled";
 			};
 
@@ -200,7 +200,7 @@ uart0: serial@512000 {
 				reg-shift = <2>;
 				interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
 				reg-io-width = <1>;
-				clocks = <&ringclk 2>;
+				clocks = <&ap_syscon 3>;
 				status = "disabled";
 			};
 
@@ -210,29 +210,19 @@ uart1: serial@512100 {
 				reg-shift = <2>;
 				interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
 				reg-io-width = <1>;
-				clocks = <&ringclk 2>;
+				clocks = <&ap_syscon 3>;
 				status = "disabled";
 
 			};
 
-			dfx-server@6f8000 {
-				compatible = "simple-mfd", "syscon";
-				reg = <0x6f8000 0x70000>;
-
-				coreclk: clk@204 {
-					compatible = "marvell,armada-ap806-core-clock";
-					#clock-cells = <1>;
-					clock-output-names = "ddr", "ring", "cpu";
-				};
-
-				ringclk: clk@250 {
-					compatible = "marvell,armada-ap806-ring-clock";
-					#clock-cells = <1>;
-					clock-output-names = "ring-0", "ring-2",
-							     "ring-3", "ring-4",
-							     "ring-5";
-					clocks = <&coreclk 1>;
-				};
+			ap_syscon: system-controller@6f4000 {
+				compatible = "marvell,ap806-system-controller",
+					     "syscon";
+				#clock-cells = <1>;
+				clock-output-names = "ap-cpu-cluster-0",
+						     "ap-cpu-cluster-1",
+						     "ap-fixed", "ap-mss";
+				reg = <0x6f4000 0x1000>;
 			};
 		};
 	};