arm64: dts: mt8192: Add cpu-idle-states

Add idle states for cpu-off and cluster-off.

Signed-off-by: James Liao <jamesjj.liao@mediatek.com>
Link: https://lore.kernel.org/r/20201222045820.26355-1-jamesjj.liao@mediatek.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>

diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
index 751c877..9757138 100644 (file)
--- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
@@ -39,6 +39,7 @@
                        reg = <0x000>;
                        enable-method = "psci";
                        clock-frequency = <1701000000>;
+                       cpu-idle-states = <&cpuoff_l &clusteroff_l>;
                        next-level-cache = <&l2_0>;
                        capacity-dmips-mhz = <530>;
                };
@@ -49,6 +50,7 @@
                        reg = <0x100>;
                        enable-method = "psci";
                        clock-frequency = <1701000000>;
+                       cpu-idle-states = <&cpuoff_l &clusteroff_l>;
                        next-level-cache = <&l2_0>;
                        capacity-dmips-mhz = <530>;
                };
@@ -59,6 +61,7 @@
                        reg = <0x200>;
                        enable-method = "psci";
                        clock-frequency = <1701000000>;
+                       cpu-idle-states = <&cpuoff_l &clusteroff_l>;
                        next-level-cache = <&l2_0>;
                        capacity-dmips-mhz = <530>;
                };
@@ -69,6 +72,7 @@
                        reg = <0x300>;
                        enable-method = "psci";
                        clock-frequency = <1701000000>;
+                       cpu-idle-states = <&cpuoff_l &clusteroff_l>;
                        next-level-cache = <&l2_0>;
                        capacity-dmips-mhz = <530>;
                };
@@ -79,6 +83,7 @@
                        reg = <0x400>;
                        enable-method = "psci";
                        clock-frequency = <2171000000>;
+                       cpu-idle-states = <&cpuoff_b &clusteroff_b>;
                        next-level-cache = <&l2_1>;
                        capacity-dmips-mhz = <1024>;
                };
@@ -89,6 +94,7 @@
                        reg = <0x500>;
                        enable-method = "psci";
                        clock-frequency = <2171000000>;
+                       cpu-idle-states = <&cpuoff_b &clusteroff_b>;
                        next-level-cache = <&l2_1>;
                        capacity-dmips-mhz = <1024>;
                };
@@ -99,6 +105,7 @@
                        reg = <0x600>;
                        enable-method = "psci";
                        clock-frequency = <2171000000>;
+                       cpu-idle-states = <&cpuoff_b &clusteroff_b>;
                        next-level-cache = <&l2_1>;
                        capacity-dmips-mhz = <1024>;
                };
@@ -109,6 +116,7 @@
                        reg = <0x700>;
                        enable-method = "psci";
                        clock-frequency = <2171000000>;
+                       cpu-idle-states = <&cpuoff_b &clusteroff_b>;
                        next-level-cache = <&l2_1>;
                        capacity-dmips-mhz = <1024>;
                };
@@ -158,6 +166,42 @@
                l3_0: l3-cache {
                        compatible = "cache";
                };
+
+               idle-states {
+                       entry-method = "arm,psci";
+                       cpuoff_l: cpuoff_l {
+                               compatible = "arm,idle-state";
+                               arm,psci-suspend-param = <0x00010001>;
+                               local-timer-stop;
+                               entry-latency-us = <55>;
+                               exit-latency-us = <140>;
+                               min-residency-us = <780>;
+                       };
+                       cpuoff_b: cpuoff_b {
+                               compatible = "arm,idle-state";
+                               arm,psci-suspend-param = <0x00010001>;
+                               local-timer-stop;
+                               entry-latency-us = <35>;
+                               exit-latency-us = <145>;
+                               min-residency-us = <720>;
+                       };
+                       clusteroff_l: clusteroff_l {
+                               compatible = "arm,idle-state";
+                               arm,psci-suspend-param = <0x01010002>;
+                               local-timer-stop;
+                               entry-latency-us = <60>;
+                               exit-latency-us = <155>;
+                               min-residency-us = <860>;
+                       };
+                       clusteroff_b: clusteroff_b {
+                               compatible = "arm,idle-state";
+                               arm,psci-suspend-param = <0x01010002>;
+                               local-timer-stop;
+                               entry-latency-us = <40>;
+                               exit-latency-us = <155>;
+                               min-residency-us = <780>;
+                       };
+               };
        };
 
        pmu-a55 {