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.org
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
index 97863adb7bc02b4b052e1e90456e11008bdacd79..d946c1466c122548a4be3d3482c2fc82187af682 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
@@ -74,7 +74,7 @@
                        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 @@
                        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 @@
                        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 @@
                        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 @@
                        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 @@
                        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 @@
                        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 @@
                        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 @@
                                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>;