arm64: dts: qcom: sm8550: Update idle state time requirements

The idle state entry/exit/residency times differ from what shipped on
production devices, mostly being overly optimistic in entry times and
overly pessimistic in minimal residency times. Align them with
downstream sources.

Fixes: ffc50b2d3828 ("arm64: dts: qcom: Add base SM8550 dtsi")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20231218-topic-8550_fixes-v1-12-ce1272d77540@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
index 541457909309945f38f1f74ade5db07aa421b548..ee1ba5a8c8fc2fc25345f5b356b9f9f410f70b6a 100644 (file)
--- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
@@ -285,9 +285,9 @@
                                compatible = "arm,idle-state";
                                idle-state-name = "silver-rail-power-collapse";
                                arm,psci-suspend-param = <0x40000004>;
-                               entry-latency-us = <800>;
+                               entry-latency-us = <550>;
                                exit-latency-us = <750>;
-                               min-residency-us = <4090>;
+                               min-residency-us = <6700>;
                                local-timer-stop;
                        };
 
@@ -296,8 +296,8 @@
                                idle-state-name = "gold-rail-power-collapse";
                                arm,psci-suspend-param = <0x40000004>;
                                entry-latency-us = <600>;
-                               exit-latency-us = <1550>;
-                               min-residency-us = <4791>;
+                               exit-latency-us = <1300>;
+                               min-residency-us = <8136>;
                                local-timer-stop;
                        };
 
@@ -316,17 +316,17 @@
                        CLUSTER_SLEEP_0: cluster-sleep-0 {
                                compatible = "domain-idle-state";
                                arm,psci-suspend-param = <0x41000044>;
-                               entry-latency-us = <1050>;
-                               exit-latency-us = <2500>;
-                               min-residency-us = <5309>;
+                               entry-latency-us = <750>;
+                               exit-latency-us = <2350>;
+                               min-residency-us = <9144>;
                        };
 
                        CLUSTER_SLEEP_1: cluster-sleep-1 {
                                compatible = "domain-idle-state";
                                arm,psci-suspend-param = <0x4100c344>;
-                               entry-latency-us = <2700>;
-                               exit-latency-us = <3500>;
-                               min-residency-us = <13959>;
+                               entry-latency-us = <2800>;
+                               exit-latency-us = <4400>;
+                               min-residency-us = <10150>;
                        };
                };
        };