arm64: dts: mt8183: adjust cpuidle target residency

Split a cluster level cpuidle state into two, so mt8183 variant
boards can adjust parameters for each cluster, and reduce cluster0's
default target residency to 1000us as power measurements showed that
its minimum residency is slightly less than cluster1's 1300us.
Signed-off-by: Ikjoon Jang <ikjn@chromium.org>
Link: https://lore.kernel.org/r/20200225080752.200952-1-ikjn@chromium.orgSigned-off-by: Matthias Brugger <matthias.bgg@gmail.com>

arch/arm64/boot/dts/mediatek/mt8183.dtsi

@@ -74,7 +74,7 @@ cpu0: cpu@0 {
 			reg = <0x000>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <741>;
-			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP0>;
 			dynamic-power-coefficient = <84>;
 			#cooling-cells = <2>;
 		};
@@ -85,7 +85,7 @@ cpu1: cpu@1 {
 			reg = <0x001>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <741>;
-			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP0>;
 			dynamic-power-coefficient = <84>;
 			#cooling-cells = <2>;
 		};
@@ -96,7 +96,7 @@ cpu2: cpu@2 {
 			reg = <0x002>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <741>;
-			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP0>;
 			dynamic-power-coefficient = <84>;
 			#cooling-cells = <2>;
 		};
@@ -107,7 +107,7 @@ cpu3: cpu@3 {
 			reg = <0x003>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <741>;
-			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP0>;
 			dynamic-power-coefficient = <84>;
 			#cooling-cells = <2>;
 		};
@@ -118,7 +118,7 @@ cpu4: cpu@100 {
 			reg = <0x100>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <1024>;
-			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP1>;
 			dynamic-power-coefficient = <211>;
 			#cooling-cells = <2>;
 		};
@@ -129,7 +129,7 @@ cpu5: cpu@101 {
 			reg = <0x101>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <1024>;
-			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP1>;
 			dynamic-power-coefficient = <211>;
 			#cooling-cells = <2>;
 		};
@@ -140,7 +140,7 @@ cpu6: cpu@102 {
 			reg = <0x102>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <1024>;
-			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP1>;
 			dynamic-power-coefficient = <211>;
 			#cooling-cells = <2>;
 		};
@@ -151,7 +151,7 @@ cpu7: cpu@103 {
 			reg = <0x103>;
 			enable-method = "psci";
 			capacity-dmips-mhz = <1024>;
-			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
+			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP1>;
 			dynamic-power-coefficient = <211>;
 			#cooling-cells = <2>;
 		};
@@ -168,7 +168,15 @@ CPU_SLEEP: cpu-sleep {
 				min-residency-us = <800>;
 			};
 
-			CLUSTER_SLEEP: cluster-sleep {
+			CLUSTER_SLEEP0: cluster-sleep@0 {
+				compatible = "arm,idle-state";
+				local-timer-stop;
+				arm,psci-suspend-param = <0x01010001>;
+				entry-latency-us = <250>;
+				exit-latency-us = <400>;
+				min-residency-us = <1000>;
+			};
+			CLUSTER_SLEEP1: cluster-sleep@1 {
 				compatible = "arm,idle-state";
 				local-timer-stop;
 				arm,psci-suspend-param = <0x01010001>;