ARM: dts: meson: switch the clock controller to the HHI register area

The clock controller on Meson8/Meson8m2 and Meson8b is part of a
register region called "HHI". This register area contains more
functionality than just a clock controller:
- the clock controller
- some reset controller bits
- temperature sensor calibration data (on Meson8b and Meson8m2 only)
- HDMI controller

Allow access to this HHI register area as "system controller". Also
migrate the Meson8 and Meson8b clock controllers to this new node.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

arch/arm/boot/dts/meson.dtsi

@@ -72,6 +72,13 @@ cbus: cbus@c1100000 {
 			#size-cells = <1>;
 			ranges = <0x0 0xc1100000 0x200000>;
 
+			hhi: system-controller@4000 {
+				compatible = "amlogic,meson-hhi-sysctrl",
+					     "simple-mfd",
+					     "syscon";
+				reg = <0x4000 0x400>;
+			};
+
 			assist: assist@7c00 {
 				compatible = "amlogic,meson-mx-assist", "syscon";
 				reg = <0x7c00 0x200>;

arch/arm/boot/dts/meson8.dtsi

@@ -327,13 +327,6 @@ mux {
 };
 
 &cbus {
-	clkc: clock-controller@4000 {
-		#clock-cells = <1>;
-		#reset-cells = <1>;
-		compatible = "amlogic,meson8-clkc";
-		reg = <0x8000 0x4>, <0x4000 0x400>;
-	};
-
 	reset: reset-controller@4404 {
 		compatible = "amlogic,meson8b-reset";
 		reg = <0x4404 0x9c>;
@@ -468,6 +461,14 @@ &gpio_intc {
 	status = "okay";
 };
 
+&hhi {
+	clkc: clock-controller {
+		compatible = "amlogic,meson8-clkc";
+		#clock-cells = <1>;
+		#reset-cells = <1>;
+	};
+};
+
 &hwrng {
 	compatible = "amlogic,meson8-rng", "amlogic,meson-rng";
 	clocks = <&clkc CLKID_RNG0>;

arch/arm/boot/dts/meson8b.dtsi

@@ -276,13 +276,6 @@ mux {
 };
 
 &cbus {
-	clkc: clock-controller@4000 {
-		#clock-cells = <1>;
-		#reset-cells = <1>;
-		compatible = "amlogic,meson8b-clkc";
-		reg = <0x8000 0x4>, <0x4000 0x400>;
-	};
-
 	reset: reset-controller@4404 {
 		compatible = "amlogic,meson8b-reset";
 		reg = <0x4404 0x9c>;
@@ -437,6 +430,14 @@ &gpio_intc {
 	status = "okay";
 };
 
+&hhi {
+	clkc: clock-controller {
+		compatible = "amlogic,meson8-clkc";
+		#clock-cells = <1>;
+		#reset-cells = <1>;
+	};
+};
+
 &hwrng {
 	compatible = "amlogic,meson8b-rng", "amlogic,meson-rng";
 	clocks = <&clkc CLKID_RNG0>;