arm64: dts: qcom: sdm845: Add PSCI cpuidle low power states

Add device bindings for cpuidle states for cpu devices.

Cc: <mkshah@codeaurora.org>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
[amit: rename the idle-states to more generic names and fixups]
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <agross@kernel.org>

diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 4554c3cbaa62b0f76649eab5f486e870afdd2df6..78ec373a2b18d9c9d1b7d863e68ac8132710c0fb 100644 (file)
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -190,6 +190,9 @@ CPU0: cpu@0 {
                        compatible = "qcom,kryo385";
                        reg = <0x0 0x0>;
                        enable-method = "psci";
+                       cpu-idle-states = <&LITTLE_CPU_SLEEP_0
+                                          &LITTLE_CPU_SLEEP_1
+                                          &CLUSTER_SLEEP_0>;
                        capacity-dmips-mhz = <607>;
                        qcom,freq-domain = <&cpufreq_hw 0>;
                        #cooling-cells = <2>;
@@ -208,6 +211,9 @@ CPU1: cpu@100 {
                        compatible = "qcom,kryo385";
                        reg = <0x0 0x100>;
                        enable-method = "psci";
+                       cpu-idle-states = <&LITTLE_CPU_SLEEP_0
+                                          &LITTLE_CPU_SLEEP_1
+                                          &CLUSTER_SLEEP_0>;
                        capacity-dmips-mhz = <607>;
                        qcom,freq-domain = <&cpufreq_hw 0>;
                        #cooling-cells = <2>;
@@ -223,6 +229,9 @@ CPU2: cpu@200 {
                        compatible = "qcom,kryo385";
                        reg = <0x0 0x200>;
                        enable-method = "psci";
+                       cpu-idle-states = <&LITTLE_CPU_SLEEP_0
+                                          &LITTLE_CPU_SLEEP_1
+                                          &CLUSTER_SLEEP_0>;
                        capacity-dmips-mhz = <607>;
                        qcom,freq-domain = <&cpufreq_hw 0>;
                        #cooling-cells = <2>;
@@ -238,6 +247,9 @@ CPU3: cpu@300 {
                        compatible = "qcom,kryo385";
                        reg = <0x0 0x300>;
                        enable-method = "psci";
+                       cpu-idle-states = <&LITTLE_CPU_SLEEP_0
+                                          &LITTLE_CPU_SLEEP_1
+                                          &CLUSTER_SLEEP_0>;
                        capacity-dmips-mhz = <607>;
                        qcom,freq-domain = <&cpufreq_hw 0>;
                        #cooling-cells = <2>;
@@ -254,6 +266,9 @@ CPU4: cpu@400 {
                        reg = <0x0 0x400>;
                        enable-method = "psci";
                        capacity-dmips-mhz = <1024>;
+                       cpu-idle-states = <&BIG_CPU_SLEEP_0
+                                          &BIG_CPU_SLEEP_1
+                                          &CLUSTER_SLEEP_0>;
                        qcom,freq-domain = <&cpufreq_hw 1>;
                        #cooling-cells = <2>;
                        next-level-cache = <&L2_400>;
@@ -269,6 +284,9 @@ CPU5: cpu@500 {
                        reg = <0x0 0x500>;
                        enable-method = "psci";
                        capacity-dmips-mhz = <1024>;
+                       cpu-idle-states = <&BIG_CPU_SLEEP_0
+                                          &BIG_CPU_SLEEP_1
+                                          &CLUSTER_SLEEP_0>;
                        qcom,freq-domain = <&cpufreq_hw 1>;
                        #cooling-cells = <2>;
                        next-level-cache = <&L2_500>;
@@ -284,6 +302,9 @@ CPU6: cpu@600 {
                        reg = <0x0 0x600>;
                        enable-method = "psci";
                        capacity-dmips-mhz = <1024>;
+                       cpu-idle-states = <&BIG_CPU_SLEEP_0
+                                          &BIG_CPU_SLEEP_1
+                                          &CLUSTER_SLEEP_0>;
                        qcom,freq-domain = <&cpufreq_hw 1>;
                        #cooling-cells = <2>;
                        next-level-cache = <&L2_600>;
@@ -299,6 +320,9 @@ CPU7: cpu@700 {
                        reg = <0x0 0x700>;
                        enable-method = "psci";
                        capacity-dmips-mhz = <1024>;
+                       cpu-idle-states = <&BIG_CPU_SLEEP_0
+                                          &BIG_CPU_SLEEP_1
+                                          &CLUSTER_SLEEP_0>;
                        qcom,freq-domain = <&cpufreq_hw 1>;
                        #cooling-cells = <2>;
                        next-level-cache = <&L2_700>;
@@ -343,6 +367,60 @@ core7 {
                                };
                        };
                };
+
+               idle-states {
+                       entry-method = "psci";
+
+                       LITTLE_CPU_SLEEP_0: cpu-sleep-0-0 {
+                               compatible = "arm,idle-state";
+                               idle-state-name = "little-power-down";
+                               arm,psci-suspend-param = <0x40000003>;
+                               entry-latency-us = <350>;
+                               exit-latency-us = <461>;
+                               min-residency-us = <1890>;
+                               local-timer-stop;
+                       };
+
+                       LITTLE_CPU_SLEEP_1: cpu-sleep-0-1 {
+                               compatible = "arm,idle-state";
+                               idle-state-name = "little-rail-power-down";
+                               arm,psci-suspend-param = <0x40000004>;
+                               entry-latency-us = <360>;
+                               exit-latency-us = <531>;
+                               min-residency-us = <3934>;
+                               local-timer-stop;
+                       };
+
+                       BIG_CPU_SLEEP_0: cpu-sleep-1-0 {
+                               compatible = "arm,idle-state";
+                               idle-state-name = "big-power-down";
+                               arm,psci-suspend-param = <0x40000003>;
+                               entry-latency-us = <264>;
+                               exit-latency-us = <621>;
+                               min-residency-us = <952>;
+                               local-timer-stop;
+                       };
+
+                       BIG_CPU_SLEEP_1: cpu-sleep-1-1 {
+                               compatible = "arm,idle-state";
+                               idle-state-name = "big-rail-power-down";
+                               arm,psci-suspend-param = <0x40000004>;
+                               entry-latency-us = <702>;
+                               exit-latency-us = <1061>;
+                               min-residency-us = <4488>;
+                               local-timer-stop;
+                       };
+
+                       CLUSTER_SLEEP_0: cluster-sleep-0 {
+                               compatible = "arm,idle-state";
+                               idle-state-name = "cluster-power-down";
+                               arm,psci-suspend-param = <0x400000F4>;
+                               entry-latency-us = <3263>;
+                               exit-latency-us = <6562>;
+                               min-residency-us = <9987>;
+                               local-timer-stop;
+                       };
+               };
        };
 
        pmu {